TWI813347B - Bluetooth audio broadcasting system supporting bluetooth low energy audio broadcasting operations and capable of avoiding user from missing external alert signals or specific sounds - Google Patents
Bluetooth audio broadcasting system supporting bluetooth low energy audio broadcasting operations and capable of avoiding user from missing external alert signals or specific sounds Download PDFInfo
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Abstract
Description
本發明涉及藍牙技術,尤指一種支援低功耗藍牙(Bluetooth Low Energy,BLE)音訊廣播運作、並可避免使用者錯過外界的警報信號或特定聲響的藍牙音訊廣播系統及相關的多成員藍牙裝置。 The present invention relates to Bluetooth technology, and in particular, to a Bluetooth audio broadcast system and related multi-member Bluetooth devices that support Bluetooth Low Energy (BLE) audio broadcast operation and prevent users from missing external alarm signals or specific sounds. .
藍牙技術區分成兩大類,一類是藍牙傳統(Classic Bluetooth/Legacy Bluetooth)技術,另一類則是低功耗藍牙(Bluetooth Low Energy,BLE)技術。BLE技術與藍牙傳統技術彼此不具相容性(或不能完全相容),但兩種技術可共存(coexist)於同一藍牙裝置或同一藍牙晶片。換言之,單一藍牙裝置或單一藍牙晶片可設計成同時支援BLE技術與藍牙傳統技術,也可設計成只支援其中一種藍牙通信標準。 Bluetooth technology is divided into two major categories, one is Classic Bluetooth/Legacy Bluetooth technology, and the other is Bluetooth Low Energy (BLE) technology. BLE technology and Bluetooth traditional technology are not compatible with each other (or not completely compatible), but the two technologies can coexist in the same Bluetooth device or the same Bluetooth chip. In other words, a single Bluetooth device or a single Bluetooth chip can be designed to support both BLE technology and Bluetooth legacy technology, or it can be designed to support only one of the Bluetooth communication standards.
基於藍牙核心規格5.2版本所新推出的低功耗藍牙音訊(Bluetooth LE Audio,BLE Audio)技術(以下簡稱BLE音訊技術),是藍牙技術發展20多年來,對於音訊傳輸技術規格的重大更新。BLE音訊技術的主要優點在於可以傳輸更高質量的音訊,並同時大幅降低功耗。另外,BLE音訊技術也利用稱為廣播等時串流(Broadcast Isochronous Stream,BIS)的新機制來進行音訊廣播運作。利用多 成員藍牙裝置來接收及播放採用BLE音訊技術的音訊廣播內容,是未來藍牙相關應用的主要發展方向之一。前述的多成員藍牙裝置指的是由多個互相搭配使用的藍牙電路所組成的藍牙裝置,例如,成對的藍牙耳機、成組的藍牙喇叭等等。 The newly launched Bluetooth Low Energy Audio (Bluetooth LE Audio, BLE Audio) technology (hereinafter referred to as BLE audio technology) based on the Bluetooth core specification version 5.2 is a major update to the audio transmission technical specifications over the past 20 years of Bluetooth technology development. The main advantage of BLE audio technology is that it can transmit higher quality audio while significantly reducing power consumption. In addition, BLE audio technology also uses a new mechanism called Broadcast Isochronous Stream (BIS) to perform audio broadcast operations. Use much Member Bluetooth devices receive and play audio broadcast content using BLE audio technology, which is one of the main development directions of Bluetooth-related applications in the future. The aforementioned multi-member Bluetooth device refers to a Bluetooth device composed of multiple Bluetooth circuits used in conjunction with each other, such as pairs of Bluetooth headsets, groups of Bluetooth speakers, etc.
眾所周知,BLE音訊技術並未規範在利用BIS進行音訊廣播時,應該如何彈性地調整音訊接收端的音量播放大小。當然,BLE音訊技術更沒有規範在利用BIS進行音訊廣播時,應該如何同步地調整多成員藍牙裝置中的不同藍牙成員裝置的音量播放大小。可以預見的是,利用BLE音訊技術來實現音訊廣播時可能會衍生某些問題。例如,無法預期音量大小的音訊廣播有可能造成某些使用者感到不適或不悅,甚至某些使用者可能會因為接收到突如其來且音量過大的音訊廣播而受到驚嚇。再者,不同的使用者對於音量大小的敏感度與容忍程度並不相同,所以單一的音量大小設定顯然無法同時滿足不同使用者的需求。 As we all know, BLE audio technology does not standardize how to flexibly adjust the volume playback of the audio receiving end when using BIS for audio broadcasting. Of course, BLE audio technology does not have standards for how to synchronously adjust the volume playback of different Bluetooth member devices in a multi-member Bluetooth device when using BIS for audio broadcast. It is foreseeable that certain problems may arise when using BLE audio technology to implement audio broadcasting. For example, audio broadcasts with unpredictable volume may cause some users to feel uncomfortable or unhappy, and some users may even be frightened by receiving sudden and excessively loud audio broadcasts. Furthermore, different users have different sensitivity and tolerance levels to volume, so a single volume setting obviously cannot meet the needs of different users at the same time.
因此,在利用多成員藍牙裝置接收及播放採用BLE音訊技術的音訊廣播時,倘若不能彈性且同步地調整多成員藍牙裝置中的不同藍牙成員裝置的音量播放大小,將對BLE音訊技術在音訊廣播應用中的發展前景造成嚴重阻礙。 Therefore, when using a multi-member Bluetooth device to receive and play audio broadcasts using BLE audio technology, if the volume playback of different Bluetooth member devices in the multi-member Bluetooth device cannot be adjusted flexibly and synchronously, it will have a negative impact on the use of BLE audio technology in audio broadcasts. This poses a serious obstacle to the development prospects in applications.
另一方面,當使用者聆聽多成員藍牙裝置播放的音訊廣播時,使用者對於外界聲響的注意力難免會有所降低、甚至有時會完全沒注意到外界的聲響。此時,萬一外界突然發生警急事件(例如,空襲、火災、海嘯等情況),使用者可能會因為沒聽到外界的警報聲響而身陷危險情境或延誤反應時機。 On the other hand, when a user listens to an audio broadcast played by a multi-member Bluetooth device, the user's attention to external sounds will inevitably be reduced, and sometimes the user may even not notice the external sounds at all. At this time, if an emergency event occurs suddenly outside (for example, air strikes, fires, tsunamis, etc.), the user may be in a dangerous situation or delay the response time because he does not hear the outside alarm sound.
有鑑於此,如何在利用多成員藍牙裝置接收及播放採用BLE音訊技術的音訊廣播時,避免使用者錯過外界的警報信號或特定聲響,實為有待解決的問題。 In view of this, how to prevent users from missing external alarm signals or specific sounds when using multi-member Bluetooth devices to receive and play audio broadcasts using BLE audio technology is a problem that needs to be solved.
本說明書提供一種藍牙音訊廣播系統的實施例,其包含有:一音訊廣播裝置,設置成可透過一廣播等時串流邏輯傳輸通道,廣播一或多個低功耗藍牙音訊封包;一第一藍牙成員裝置,其包含:一第一藍牙通信電路,設置成可接收該一或多個低功耗藍牙音訊封包;一第一音訊處理電路;以及一第一控制電路,耦接於該第一藍牙通信電路及該第一音訊處理電路,設置成可解析該第一藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取一預定音訊資料,並指示該第一音訊處理電路控制一第一音訊播放電路播放該預定音訊資料;以及一第二藍牙成員裝置,其包含:一第二藍牙通信電路,設置成可接收該一或多個低功耗藍牙音訊封包;一第二音訊處理電路;以及一第二控制電路,耦接於該第二藍牙通信電路及該第二音訊處理電路,設置成可解析該第二藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取該預定音訊資料,並指示該第二音訊處理電路控制一第二音訊播放電路播放該預定音訊資料;其中,該音訊廣播裝置還設置成可在該第一藍牙成員裝置或該第二藍牙成員裝置接收到一警報信號時、或是在該第一藍牙成員裝置或該第二藍牙成員裝置的周邊環境發生一特定的環境聲響時,產生並傳送一標的控制指令給該第一藍牙成員裝置及該第二藍牙成員裝置;其中,該第一藍牙通信電路還設置成可接收該標的控制指令,且該第一控制電路還設置成可依據該標的控制指令,控制該第一音訊處理電路將該第一音訊播放電路的一音量大小降到一預定臨界值以下;其中,該第二藍牙通信電路還設置成可接收該標的控制指令,且該第二控制電路還設置成可依據該標的控制指令,控制該第二音訊處理電路將該第二音訊播放電路的一音量大小降到該預定臨界值以下。 This specification provides an embodiment of a Bluetooth audio broadcast system, which includes: an audio broadcast device configured to broadcast one or more low-power Bluetooth audio packets through a broadcast isochronous streaming logical transmission channel; a first A Bluetooth member device includes: a first Bluetooth communication circuit configured to receive the one or more low-power Bluetooth audio packets; a first audio processing circuit; and a first control circuit coupled to the first The Bluetooth communication circuit and the first audio processing circuit are configured to parse the one or more low-power Bluetooth audio packets received by the first Bluetooth communication circuit to obtain a predetermined audio data, and instruct the first audio processing circuit Control a first audio playback circuit to play the predetermined audio data; and a second Bluetooth member device, which includes: a second Bluetooth communication circuit configured to receive the one or more low-power Bluetooth audio packets; a second an audio processing circuit; and a second control circuit, coupled to the second Bluetooth communication circuit and the second audio processing circuit, configured to analyze the one or more low-power Bluetooth signals received by the second Bluetooth communication circuit The audio packet is used to obtain the predetermined audio data, and instructs the second audio processing circuit to control a second audio playback circuit to play the predetermined audio data; wherein, the audio broadcast device is also configured to be able to play the predetermined audio data on the first Bluetooth member device or the third Bluetooth member device. When the two Bluetooth member devices receive an alarm signal, or when a specific environmental sound occurs in the surrounding environment of the first Bluetooth member device or the second Bluetooth member device, a target control command is generated and transmitted to the first Bluetooth member device. Member device and the second Bluetooth member device; wherein the first Bluetooth communication circuit is further configured to receive the target control command, and the first control circuit is further configured to control the first audio processing according to the target control command. The circuit reduces a volume of the first audio playback circuit below a predetermined threshold; wherein, the second Bluetooth communication circuit is also configured to receive the target control command, and the second control circuit is also configured to receive the target control command according to the The target control instruction controls the second audio processing circuit to reduce a volume of the second audio playing circuit below the predetermined threshold value.
上述實施例的優點之一,是該音訊廣播裝置可在該第一藍牙成員裝置或該第二藍牙成員裝置接收到一警報信號時、或是在該第一藍牙成員裝置或該第二藍牙成員裝置的周邊環境發生一特定的環境聲響 時,利用標的控制指令指示該第一藍牙成員裝置及該第二藍牙成員裝置將音量大小同步降到一預定臨界值以下,因此能夠避免使用者因錯過外界傳來的警報信號或特定聲響,而身陷危險情況、或是延誤反應時機。 One of the advantages of the above embodiment is that the audio broadcast device can be used when the first Bluetooth member device or the second Bluetooth member device receives an alarm signal, or when the first Bluetooth member device or the second Bluetooth member device receives an alarm signal. A specific ambient sound is generated in the surrounding environment of the device At this time, the target control command is used to instruct the first Bluetooth member device and the second Bluetooth member device to synchronously reduce the volume below a predetermined threshold value. Therefore, the user can be prevented from missing alarm signals or specific sounds from the outside world. Being in a dangerous situation or delaying the response time.
本發明的其他優點將搭配以下的說明和圖式進行更詳細的解說。 Other advantages of the present invention will be explained in more detail in conjunction with the following description and drawings.
100、400、500、600、700、800、900、1100:藍牙音訊廣播系統(Bluetooth audio broadcasting system) 100, 400, 500, 600, 700, 800, 900, 1100: Bluetooth audio broadcasting system
110:第一藍牙成員裝置(first Bluetooth member device) 110: first Bluetooth member device
111:第一藍牙通信電路(first Bluetooth communication circuit) 111: first Bluetooth communication circuit
112:第一音訊處理電路(first audio processing circuit) 112: first audio processing circuit
113:第一音訊播放電路(first audio playback circuit) 113: first audio playback circuit
114:第一控制電路(first control circuit) 114: first control circuit
120:第二藍牙成員裝置(second Bluetooth member device) 120: second Bluetooth member device (second Bluetooth member device)
121:第二藍牙通信電路(second Bluetooth communication circuit) 121: Second Bluetooth communication circuit (second Bluetooth communication circuit)
122:第二音訊處理電路(second audio processing circuit) 122: Second audio processing circuit (second audio processing circuit)
123:第二音訊播放電路(second audio playback circuit) 123: Second audio playback circuit
124:第二控制電路(second control circuit) 124: Second control circuit (second control circuit)
130:第三藍牙成員裝置(third Bluetooth member device) 130: third Bluetooth member device
140:第四藍牙成員裝置(fourth Bluetooth member device) 140: fourth Bluetooth member device
150:音訊廣播裝置(audio broadcasting device) 150:audio broadcasting device
152、472:偵測電路(detection circuit) 152, 472: detection circuit
202~234、302~314、1002、1012~1016、1026~1036:運作流程(operation) 202~234, 302~314, 1002, 1012~1016, 1026~1036: operation process
470、570:音量來源裝置(audio source device) 470, 570: audio source device
560、960、970:主控裝置(host device) 560, 960, 970: host device
561、961:通信電路(communication circuit) 561, 961: communication circuit
563、963:偵測電路(detection circuit) 563, 963: detection circuit (detection circuit)
565、965:處理電路(processing circuit) 565, 965: processing circuit
715:第一無線通信電路(first wireless communication circuit) 715: first wireless communication circuit
716:第一偵測電路(first detection circuit) 716: first detection circuit (first detection circuit)
725:第二無線通信電路(second wireless communication circuit) 725: Second wireless communication circuit (second wireless communication circuit)
726:第二偵測電路(second detection circuit) 726: second detection circuit (second detection circuit)
763、1163:輸入電路(input circuit) 763, 1163: input circuit
圖1為本發明一第一實施例的藍牙音訊廣播系統簡化後的功能方塊圖。 FIG. 1 is a simplified functional block diagram of a Bluetooth audio broadcast system according to a first embodiment of the present invention.
圖2至圖3為本發明一第一實施例的利用BLE音訊技術進行音訊廣播的方法簡化後的流程圖。 2 to 3 are simplified flow charts of a method for audio broadcasting using BLE audio technology according to a first embodiment of the present invention.
圖4為本發明一第二實施例的藍牙音訊廣播系統簡化後的功能方塊圖。 FIG. 4 is a simplified functional block diagram of a Bluetooth audio broadcast system according to a second embodiment of the present invention.
圖5為本發明一第三實施例的藍牙音訊廣播系統簡化後的功能方塊圖。 FIG. 5 is a simplified functional block diagram of a Bluetooth audio broadcast system according to a third embodiment of the present invention.
圖6為本發明一第四實施例的藍牙音訊廣播系統簡化後的功能方塊圖。 FIG. 6 is a simplified functional block diagram of a Bluetooth audio broadcast system according to a fourth embodiment of the present invention.
圖7為本發明一第五實施例的藍牙音訊廣播系統簡化後的功能方塊圖。 FIG. 7 is a simplified functional block diagram of a Bluetooth audio broadcast system according to a fifth embodiment of the present invention.
圖8為本發明一第六實施例的藍牙音訊廣播系統簡化後的功能方塊圖。 FIG. 8 is a simplified functional block diagram of a Bluetooth audio broadcast system according to a sixth embodiment of the present invention.
圖9為本發明一第七實施例的藍牙音訊廣播系統簡化後的功能方塊圖。 FIG. 9 is a simplified functional block diagram of a Bluetooth audio broadcast system according to a seventh embodiment of the present invention.
圖10為本發明一第二實施例的利用BLE音訊技術進行音訊廣播的方法簡化後的流程圖。 FIG. 10 is a simplified flow chart of a method for audio broadcasting using BLE audio technology according to a second embodiment of the present invention.
圖11為本發明一第八實施例的藍牙音訊廣播系統簡化後的功能方塊圖。 FIG. 11 is a simplified functional block diagram of a Bluetooth audio broadcast system according to an eighth embodiment of the present invention.
圖12為本發明一第三實施例的利用BLE音訊技術進行音訊廣播的方 法簡化後的流程圖。 Figure 12 shows a method of using BLE audio technology for audio broadcasting according to a third embodiment of the present invention. Simplified flow chart.
以下將配合相關圖式來說明本發明的實施例。在圖式中,相同的標號表示相同或類似的元件或方法流程。 The embodiments of the present invention will be described below with reference to relevant drawings. In the drawings, the same reference numbers represent the same or similar elements or process flows.
圖1為本發明一第一實施例的藍牙音訊廣播系統100簡化後的功能方塊圖。藍牙音訊廣播系統100包含可接收音訊廣播的多個藍牙成員裝置(Bluetooth member device),以及用來廣播音訊資料的一音訊廣播裝置150。音訊廣播裝置150設置成可採用藍牙核心規格5.2版本或較新的版本所規範的低功耗藍牙音訊(Bluetooth LE Audio,BLE Audio)技術(以下簡稱BLE音訊技術),來廣播各種內容的音訊資料,例如,機場內的航班信息、火車站或高鐵站內的班次提醒通知、電影院內的劇情聲音、體育館內的語音信息、博物館內的導覽語音、展覽會場內的介紹語音、演講會場的語音翻譯、使用者選擇的音樂或語音資料、電視提供的多聲道音訊、教室內老師的上課內容、或是其他類型的音訊內容等等。 FIG. 1 is a simplified functional block diagram of a Bluetooth audio broadcast system 100 according to a first embodiment of the present invention. The Bluetooth audio broadcast system 100 includes a plurality of Bluetooth member devices that can receive audio broadcasts, and an audio broadcast device 150 for broadcasting audio data. The audio broadcasting device 150 is configured to use low-power Bluetooth audio (Bluetooth LE Audio, BLE Audio) technology (hereinafter referred to as BLE audio technology) specified in the Bluetooth core specification version 5.2 or a newer version to broadcast audio data of various contents. , for example, flight information in the airport, flight reminder notices in the train station or high-speed rail station, plot sounds in the cinema, voice information in the stadium, guide voices in the museum, introduction voices in the exhibition venue, voice translation at the lecture venue , music or voice data selected by the user, multi-channel audio provided by the TV, teacher's class content in the classroom, or other types of audio content, etc.
藍牙音訊廣播系統100中的多個藍牙成員裝置都支援藍牙核心規格5.2版本或較新的版本所規範的BLE技術,並可接收並播放音訊廣播裝置150所廣播的音訊資料。實作上,藍牙音訊廣播系統100中可包含兩個或兩個以上的藍牙成員裝置。為了方便說明起見,在圖1的實施例中僅繪示四個示例性的藍牙成員裝置,分別是一第一藍牙成員裝置110、一第二藍牙成員裝置120、一第三藍牙成員裝置130、以及一第四藍牙成員裝置140。 Multiple Bluetooth member devices in the Bluetooth audio broadcast system 100 all support the BLE technology specified in Bluetooth core specification version 5.2 or newer versions, and can receive and play audio data broadcast by the audio broadcast device 150 . In practice, the Bluetooth audio broadcast system 100 may include two or more Bluetooth member devices. For convenience of explanation, only four exemplary Bluetooth member devices are shown in the embodiment of FIG. 1 , which are a first Bluetooth member device 110 , a second Bluetooth member device 120 , and a third Bluetooth member device 130 . , and a fourth Bluetooth member device 140.
在實際應用中,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140,可共同組成一個多成員藍牙裝置,例如,一組多聲道藍牙喇叭。在此情況下,第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140可利用各種符合藍牙通信標準所規範 的方式建立一藍牙微網(Bluetooth piconet),並可透過該藍牙微網進行各種指令或資料傳輸,或者,第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140可共同組成符合各種藍牙通信標準所規範的一協同組(coordinate set)。 In practical applications, the aforementioned first Bluetooth member device 110, second Bluetooth member device 120, third Bluetooth member device 130, and fourth Bluetooth member device 140 can jointly form a multi-member Bluetooth device, for example, a group of multi-member Bluetooth devices. Channel Bluetooth speaker. In this case, the first Bluetooth member device 110 , the second Bluetooth member device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 can use various methods that comply with the Bluetooth communication standards. A Bluetooth piconet is established by a method, and various instructions or data can be transmitted through the Bluetooth piconet, or the first Bluetooth member device 110, the second Bluetooth member device 120, the third Bluetooth member device 130, and The fourth Bluetooth member devices 140 may jointly form a coordination set that complies with various Bluetooth communication standards.
或者,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140,也可以分別屬於不同的多成員藍牙裝置。例如,前述的第一藍牙成員裝置110及第二藍牙成員裝置120可共同組成一第一多成員藍牙裝置(例如,一對藍牙耳機),而前述的第三藍牙成員裝置130及第四藍牙成員裝置140則可共同組成一第二多成員藍牙裝置(例如,另一對藍牙耳機)。在此情況下,第一藍牙成員裝置110及第二藍牙成員裝置120可利用各種符合藍牙通信標準所規範的方式建立一第一藍牙微網,並可透過該第一藍牙微網進行各種指令或資料傳輸。另一方面,第三藍牙成員裝置130及第四藍牙成員裝置140可利用各種符合藍牙通信標準所規範的方式建立一第二藍牙微網,並可透過該第二藍牙微網進行各種指令或資料傳輸。或者,第一藍牙成員裝置110及第二藍牙成員裝置120可共同組成符合各種藍牙通信標準所規範的一第一協同組,而第三藍牙成員裝置130及第四藍牙成員裝置140則可共同組成符合各種藍牙通信標準所規範的一第二協同組。 Alternatively, the aforementioned first Bluetooth member device 110, second Bluetooth member device 120, third Bluetooth member device 130, and fourth Bluetooth member device 140 may also belong to different multi-member Bluetooth devices respectively. For example, the aforementioned first Bluetooth member device 110 and the second Bluetooth member device 120 may together form a first multi-member Bluetooth device (for example, a pair of Bluetooth headsets), and the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device The devices 140 may together form a second multi-member Bluetooth device (eg, another pair of Bluetooth headsets). In this case, the first Bluetooth member device 110 and the second Bluetooth member device 120 can use various methods that comply with the Bluetooth communication standard to establish a first Bluetooth micronet, and can perform various instructions or instructions through the first Bluetooth micronet. Data transfer. On the other hand, the third Bluetooth member device 130 and the fourth Bluetooth member device 140 can establish a second Bluetooth micronet using various methods that comply with the Bluetooth communication standard, and can perform various instructions or data through the second Bluetooth micronet. transmission. Alternatively, the first Bluetooth member device 110 and the second Bluetooth member device 120 may jointly form a first collaboration group that complies with various Bluetooth communication standards, and the third Bluetooth member device 130 and the fourth Bluetooth member device 140 may jointly form a first collaboration group. A second collaboration group that complies with various Bluetooth communication standards.
在圖1的實施例中,第一藍牙成員裝置110包含有一第一藍牙通信電路111、一第一音訊處理電路112、一第一音訊播放電路113、以及一第一控制電路114。相仿地,第二藍牙成員裝置120包含有一第二藍牙通信電路121、一第二音訊處理電路122、一第二音訊播放電路123、以及一第二控制電路124。 In the embodiment of FIG. 1 , the first Bluetooth member device 110 includes a first Bluetooth communication circuit 111 , a first audio processing circuit 112 , a first audio playback circuit 113 , and a first control circuit 114 . Similarly, the second Bluetooth member device 120 includes a second Bluetooth communication circuit 121, a second audio processing circuit 122, a second audio playback circuit 123, and a second control circuit 124.
在第一藍牙成員裝置110中,第一藍牙通信電路111設置成可以藍牙通信方式接收音訊廣播裝置150採用BLE音訊技術所廣播的音訊資 料。第一音訊處理電路112耦接於第一音訊播放電路113,並設置成可處理音訊廣播裝置150傳來的音訊資料(例如,對音訊資料進行編碼或解碼運作,和/或進行資料格式轉換),並可控制第一音訊播放電路113播放音訊資料。第一控制電路114耦接於第一藍牙通信電路111及第一音訊處理電路112,並設置成可解析第一藍牙通信電路111接收到的藍牙封包,以獲取相關的資料或指令,並可控制第一音訊處理電路112的運作。 In the first Bluetooth member device 110, the first Bluetooth communication circuit 111 is configured to receive audio information broadcast by the audio broadcast device 150 using BLE audio technology in a Bluetooth communication manner. material. The first audio processing circuit 112 is coupled to the first audio playing circuit 113 and is configured to process the audio data transmitted from the audio broadcast device 150 (for example, perform encoding or decoding operations on the audio data, and/or perform data format conversion) , and can control the first audio playing circuit 113 to play audio data. The first control circuit 114 is coupled to the first Bluetooth communication circuit 111 and the first audio processing circuit 112, and is configured to parse the Bluetooth packets received by the first Bluetooth communication circuit 111 to obtain relevant data or instructions, and to control Operation of the first audio processing circuit 112.
在某些實施例中,第一控制電路114還設置成可控制第一藍牙成員裝置110扮演一藍牙微網中的一藍牙主裝置(Bluetooth Central),並可調整第一藍牙成員裝置110所使用的時脈信號(clock signal),以同步第一藍牙成員裝置110與其他藍牙裝置之間所使用的微微網時脈(piconet clock)。 In some embodiments, the first control circuit 114 is further configured to control the first Bluetooth member device 110 to act as a Bluetooth central device (Bluetooth Central) in a Bluetooth micronet, and to adjust the usage of the first Bluetooth member device 110 . A clock signal is used to synchronize the piconet clock used between the first Bluetooth member device 110 and other Bluetooth devices.
第一控制電路114可透過第一藍牙通信電路111與其他藍牙成員裝置進行通信。第一控制電路114還可利用第一音訊處理電路112處理音訊廣播裝置150傳來的音訊資料,並指示第一音訊處理電路112控制第一音訊播放電路113播放音訊資料。 The first control circuit 114 can communicate with other Bluetooth member devices through the first Bluetooth communication circuit 111 . The first control circuit 114 can also use the first audio processing circuit 112 to process the audio data transmitted from the audio broadcast device 150, and instruct the first audio processing circuit 112 to control the first audio playing circuit 113 to play the audio data.
在第二藍牙成員裝置120中,第二藍牙通信電路121設置成可以藍牙通信方式接收音訊廣播裝置150採用BLE音訊技術所廣播的音訊資料。第二音訊處理電路122耦接於第二音訊播放電路123,並設置成可處理音訊廣播裝置150傳來的音訊資料(例如,對音訊資料進行編碼或解碼運作,和/或進行資料格式轉換),並可控制第二音訊播放電路123播放音訊資料。第二控制電路124耦接於第二藍牙通信電路121及第二音訊處理電路122,並設置成可解析第二藍牙通信電路121接收到的藍牙封包,以獲取相關的資料或指令,並可控制第二音訊處理電路122的運作。此外,第二控制電路124還設置成可調整第二藍牙成員裝置120所使用的時脈信號,以同步第二藍牙成員裝置120與其他藍牙裝置之間所使用的微微網時脈。 In the second Bluetooth member device 120, the second Bluetooth communication circuit 121 is configured to receive audio data broadcast by the audio broadcasting device 150 using BLE audio technology in a Bluetooth communication manner. The second audio processing circuit 122 is coupled to the second audio playing circuit 123 and is configured to process the audio data transmitted from the audio broadcast device 150 (for example, perform encoding or decoding operations on the audio data, and/or perform data format conversion) , and can control the second audio playing circuit 123 to play audio data. The second control circuit 124 is coupled to the second Bluetooth communication circuit 121 and the second audio processing circuit 122, and is configured to parse the Bluetooth packets received by the second Bluetooth communication circuit 121 to obtain relevant data or instructions, and to control Operation of the second audio processing circuit 122. In addition, the second control circuit 124 is also configured to adjust the clock signal used by the second Bluetooth member device 120 to synchronize the piconet clock used between the second Bluetooth member device 120 and other Bluetooth devices.
在本實施例中,第二控制電路124還設置成可控制第二藍牙成員裝置120扮演前述藍牙微網中的一藍牙從裝置(Bluetooth Peripheral),並可調整第二藍牙成員裝置120所使用的時脈信號,以同步第二藍牙成員裝置120與第一藍牙成員裝置110之間所使用的微微網時脈。 In this embodiment, the second control circuit 124 is further configured to control the second Bluetooth member device 120 to act as a Bluetooth slave device (Bluetooth Peripheral) in the aforementioned Bluetooth micronet, and to adjust the Bluetooth peripheral used by the second Bluetooth member device 120 . The clock signal is used to synchronize the piconet clock used between the second Bluetooth member device 120 and the first Bluetooth member device 110 .
第二控制電路124可透過第二藍牙通信電路121與其他藍牙成員裝置進行通信。第二控制電路124還可利用第二音訊處理電路122處理音訊廣播裝置150傳來的音訊資料,並指示第二音訊處理電路122控制第二音訊播放電路123播放音訊資料。 The second control circuit 124 can communicate with other Bluetooth member devices through the second Bluetooth communication circuit 121 . The second control circuit 124 can also use the second audio processing circuit 122 to process the audio data transmitted from the audio broadcast device 150, and instruct the second audio processing circuit 122 to control the second audio playing circuit 123 to play the audio data.
實作上,前述的第一藍牙通信電路111及第二藍牙通信電路121,皆可用能夠支援藍牙核心規格5.2版本或較新的版本的藍牙通信協定的合適藍牙傳輸電路來實現。第一音訊處理電路112及第二音訊處理電路122,皆可用能夠對音訊資料號進行各種編解碼處理和/或資料格式轉換的數位運算電路、微處理器、特殊應用積體電路(Application Specific Integrated Circuit,ASIC)、或是數位至類比轉換電路(digital-to-analog converter,DAC)來實現。第一音訊播放電路113及第二音訊播放電路123,皆可用能夠接收播放音訊資料的各種合適電路來實現,例如,各種類型的喇叭。第一控制電路114及第二控制電路124,皆可用具有適當運算能力、能夠解析及產生藍牙封包的各種封包處理電路、數位運算電路、微處理器、或是特殊應用積體電路來實現。 In practice, the aforementioned first Bluetooth communication circuit 111 and second Bluetooth communication circuit 121 can be implemented with a suitable Bluetooth transmission circuit that can support the Bluetooth core specification version 5.2 or a newer version of the Bluetooth communication protocol. The first audio processing circuit 112 and the second audio processing circuit 122 can both use digital arithmetic circuits, microprocessors, or application specific integrated circuits (Application Specific Integrated Circuits) that can perform various encoding and decoding processes on audio data signals and/or convert data formats. Circuit (ASIC) or digital-to-analog converter (DAC). The first audio playing circuit 113 and the second audio playing circuit 123 can be implemented by various suitable circuits capable of receiving and playing audio data, for example, various types of speakers. The first control circuit 114 and the second control circuit 124 can be implemented by various packet processing circuits, digital computing circuits, microprocessors, or special application integrated circuits that have appropriate computing capabilities and can parse and generate Bluetooth packets.
在某些實施例中,前述的第一藍牙通信電路111及第二藍牙通信電路121,也可以用同時支援更早以前的藍牙版本(例如,藍牙2.0、藍牙3.0、藍牙4.0、藍牙4.2等版本)的藍牙通信協定的合適藍牙傳輸電路來實現。在此情況下,前述的第一控制電路114及第二控制電路124也要設計成能夠解析及產生更早以前的藍牙版本的藍牙通信協定所定義的藍牙封包。 In some embodiments, the aforementioned first Bluetooth communication circuit 111 and second Bluetooth communication circuit 121 can also support earlier Bluetooth versions (for example, Bluetooth 2.0, Bluetooth 3.0, Bluetooth 4.0, Bluetooth 4.2, etc.) ) of the Bluetooth communication protocol is implemented by a suitable Bluetooth transmission circuit. In this case, the aforementioned first control circuit 114 and second control circuit 124 are also designed to be able to parse and generate Bluetooth packets defined by the Bluetooth communication protocol of an earlier Bluetooth version.
另外,前述第一藍牙成員裝置110中的不同功能方塊可分別用不同 的電路來實現,也可整合在一單一藍牙控制晶片(Bluetooth controller IC)或一單一穿戴式藍牙裝置(例如,藍牙耳機)中。另外,有需要的話,也可以將第一藍牙通信電路111耦接於額外的天線裝置(未繪示)。同樣地,前述第二藍牙成員裝置120中的不同功能方塊可分別用不同的電路來實現,也可整合在一單一藍牙控制晶片(Bluetooth controller IC)或一單一穿戴式藍牙裝置(例如,藍牙耳機)中。另外,有需要的話,也可以將第二藍牙通信電路121耦接於額外的天線裝置(未繪示)。 In addition, different functional blocks in the aforementioned first Bluetooth member device 110 can be used with different It can be implemented with a circuit and can also be integrated into a single Bluetooth controller IC or a single wearable Bluetooth device (for example, a Bluetooth headset). In addition, if necessary, the first Bluetooth communication circuit 111 can also be coupled to an additional antenna device (not shown). Similarly, the different functional blocks in the second Bluetooth member device 120 can be implemented using different circuits, or can be integrated into a single Bluetooth controller IC or a single wearable Bluetooth device (for example, a Bluetooth headset). )middle. In addition, if necessary, the second Bluetooth communication circuit 121 can also be coupled to an additional antenna device (not shown).
在某些實施例中,也可以將前述的第一音訊處理電路112及第二音訊處理電路122,分別整合到前述的第一控制電路114及第二控制電路124中。 In some embodiments, the aforementioned first audio processing circuit 112 and the second audio processing circuit 122 can also be integrated into the aforementioned first control circuit 114 and the second control circuit 124 respectively.
換言之,前述的第一音訊處理電路112及第一控制電路114有可能用不同的電路來實現,也可能用同一個電路來實現。同樣地,前述的第二音訊處理電路122及第二控制電路124有可能用不同的電路來實現,也可能用同一個電路來實現。 In other words, the aforementioned first audio processing circuit 112 and first control circuit 114 may be implemented by different circuits, or they may be implemented by the same circuit. Similarly, the aforementioned second audio processing circuit 122 and second control circuit 124 may be implemented by different circuits, or they may be implemented by the same circuit.
藍牙音訊廣播系統100中的其他藍牙成員裝置的主要電路架構與實施方式,都類似於前述的第一藍牙成員裝置110或第二藍牙成員裝置120,但在不同的藍牙成員裝置中可以設置不同的額外電路元件,而不侷限所有藍牙成員裝置的電路結構都要完全相同。 The main circuit architecture and implementation of other Bluetooth member devices in the Bluetooth audio broadcast system 100 are similar to the aforementioned first Bluetooth member device 110 or second Bluetooth member device 120 , but different Bluetooth member devices can be configured with different Additional circuit components are not limited to the fact that the circuit structures of all Bluetooth member devices must be exactly the same.
如前所述,音訊廣播裝置150可採用藍牙核心規格5.2版本或較新的版本所規範的BLE音訊技術來廣播各種音訊資料。在運作時,音訊廣播裝置150可透過一廣播等時串流(Broadcast Isochronous Stream,BIS)邏輯傳輸通道(logical transport)(以下簡稱為BIS邏輯傳輸通道,BIS logical transport),來廣播包含音訊資料的一或多個低功耗藍牙音訊封包(Bluetooth LE audio packet)。 As mentioned above, the audio broadcast device 150 can use the BLE audio technology specified in Bluetooth core specification version 5.2 or a newer version to broadcast various audio data. During operation, the audio broadcast device 150 may broadcast audio data containing audio data through a Broadcast Isochronous Stream (BIS) logical transport (hereinafter referred to as BIS logical transport). One or more Bluetooth LE audio packets.
實作上,前述的音訊廣播裝置150可以用支援藍牙核心規格5.2版本或較新的版本的藍牙通信協定、且能夠利用BLE音訊技術來廣播音 訊資料的各種合適電路或裝置來實現,例如,一音訊廣播系統、一語音導覽系統、一語音廣播系統、一桌上型電腦、一筆記型電腦、一平板電腦、一行動通信裝置(例如,手機)、一穿戴式裝置、一車載音訊系統、或一藍牙智慧音箱等等。 In practice, the aforementioned audio broadcast device 150 can use a Bluetooth communication protocol that supports Bluetooth core specification version 5.2 or a newer version, and can use BLE audio technology to broadcast audio. It can be realized by various suitable circuits or devices of information data, for example, an audio broadcast system, an audio guide system, a voice broadcast system, a desktop computer, a notebook computer, a tablet computer, a mobile communication device (such as , mobile phone), a wearable device, a car audio system, or a Bluetooth smart speaker, etc.
然而,藍牙核心規格5.2版本所推出的BLE音訊技術,並未規範音訊來源端在利用BIS邏輯傳輸通道進行音訊廣播的過程中,要如何調整音訊接收端的音量播放大小,而且也沒有要求音訊來源端必須調整音訊接收端的音量播放大小。因此,採用BLE音訊技術來進行音訊廣播時可能會衍生某些問題。例如,無法預期音量大小的音訊廣播有可能造成某些使用者感到不適或不悅,甚至某些使用者可能會因為接收到突如其來且音量過大的音訊廣播而受到驚嚇。 However, the BLE audio technology introduced in version 5.2 of the Bluetooth core specification does not standardize how the audio source end adjusts the volume playback size of the audio receiving end during the process of using the BIS logical transmission channel for audio broadcast, and it does not require the audio source end. The volume of the audio receiver must be adjusted. Therefore, certain problems may arise when using BLE audio technology for audio broadcasting. For example, audio broadcasts with unpredictable volume may cause some users to feel uncomfortable or unhappy, and some users may even be frightened by receiving sudden and excessively loud audio broadcasts.
為了解決藍牙核心規格5.2版本既有的BLE音訊技術在音訊廣播應用上的盲點,前揭的藍牙音訊廣播系統100會採用特殊的機制來進行音訊資料的廣播運作。 In order to solve the blind spots in the audio broadcast application of the existing BLE audio technology in version 5.2 of the Bluetooth core specification, the previously disclosed Bluetooth audio broadcast system 100 will use a special mechanism to perform the broadcast operation of audio data.
以下將搭配圖2至圖3來進一步說明藍牙音訊廣播系統100的運作方式。圖2至圖3為本發明一第一實施例的利用BLE音訊技術進行音訊廣播的方法簡化後的流程圖。 The operation of the Bluetooth audio broadcast system 100 will be further explained below with reference to FIGS. 2 to 3 . 2 to 3 are simplified flow charts of a method for audio broadcasting using BLE audio technology according to a first embodiment of the present invention.
在圖2及圖3的流程圖中,位於一特定裝置所屬欄位中的流程,即代表由該特定裝置所進行的流程。例如,標記在「音訊廣播裝置」欄位中的部分,是由音訊廣播裝置150所進行的流程;標記在「第一藍牙成員裝置」欄位中的部分,是由第一藍牙成員裝置110所進行的流程;標記在「第二藍牙成員裝置」欄位中的部分,是由第二藍牙成員裝置120所進行的流程;前述的邏輯也適用於後續的其他流程圖中。 In the flow charts of FIG. 2 and FIG. 3 , the process located in the column to which a specific device belongs represents the process performed by the specific device. For example, the part marked in the "Audio Broadcasting Device" field is the process performed by the audio broadcasting device 150; the part marked in the "First Bluetooth Member Device" field is the process performed by the first Bluetooth member device 110. The process performed; the part marked in the "Second Bluetooth member device" field is the process performed by the second Bluetooth member device 120; the foregoing logic is also applicable to other subsequent flow charts.
當使用者想要利用第一藍牙成員裝置110與第二藍牙成員裝置120接收音訊廣播時,第一藍牙成員裝置110可進行圖2中的流程202,而第二藍牙成員裝置120則可進行圖2中的流程204。 When the user wants to use the first Bluetooth member device 110 and the second Bluetooth member device 120 to receive audio broadcasts, the first Bluetooth member device 110 can perform the process 202 in Figure 2, and the second Bluetooth member device 120 can perform the process in Figure 2. Process 204 in 2.
在流程202中,第一控制電路114可控制第一藍牙通信電路111進入一預定接收模式。 In process 202, the first control circuit 114 may control the first Bluetooth communication circuit 111 to enter a predetermined receiving mode.
在流程204中,第二控制電路124可控制第二藍牙通信電路121進入前述的預定接收模式。 In process 204, the second control circuit 124 may control the second Bluetooth communication circuit 121 to enter the aforementioned predetermined receiving mode.
前述的預定接收模式指的是可用來接收各種藍牙廣告封包、各種廣播等時串流協定資料單元(protocol data unit,PDU)(以下簡稱為BIS協定資料單元,BIS PDU)、和/或各種廣播等時群組(Broadcast Isochronous Group,BIG)協定資料單元(以下簡稱為BIG協定資料單元,BIG PDU)的各種操作模式。 The aforementioned scheduled reception mode refers to the device that can be used to receive various Bluetooth advertising packets, various broadcast isochronous streaming protocol data units (PDUs) (hereinafter referred to as BIS protocol data units, BIS PDUs), and/or various broadcasts. Various operating modes of the Broadcast Isochronous Group (BIG) protocol data unit (hereinafter referred to as the BIG protocol data unit, BIG PDU).
例如,前述的預定接收模式可以是可用來接收各種藍牙廣告封包的一低功耗拓展被動掃描(LE Extended Passive Scan)模式、一低功耗拓展主動掃描(LE Extended Active Scan)模式、一低功耗拓展發起者(LE Extended Initiator)模式、或一周期性掃描(Periodic Scanning)模式。又例如,前述的預定接收模式可以是可透過BIS邏輯傳輸通道來接收各種協定資料單元、和/或可透過廣播等時群組邏輯傳輸通道(以下簡稱為BIG邏輯傳輸通道,BIG logical transport)來接收各種協定資料單元的操作模式,例如,一週期同步(Periodic Synchronization)模式、或一廣播等時群組同步(BIG Synchronization)模式等等。或者,前述的預定接收模式也可以是前述的各種操作模式的搭配組合。 For example, the aforementioned predetermined receiving mode may be a low-power extended passive scan (LE Extended Passive Scan) mode, a low-power extended active scan (LE Extended Active Scan) mode, a low-power extended passive scan (LE Extended Active Scan) mode that can be used to receive various Bluetooth advertising packets. consumption extended initiator (LE Extended Initiator) mode, or a periodic scanning (Periodic Scanning) mode. For another example, the aforementioned predetermined reception mode may be to receive various protocol data units through a BIS logical transport channel, and/or may be received through a broadcast isochronous group logical transport channel (hereinafter referred to as BIG logical transport channel, BIG logical transport). The operation mode of receiving various protocol data units, for example, a periodic synchronization (Periodic Synchronization) mode, or a broadcast isochronous group synchronization (BIG Synchronization) mode, etc. Alternatively, the aforementioned predetermined reception mode may also be a combination of the aforementioned various operation modes.
如圖2所示,當音訊廣播裝置150需要進行音訊廣播時,音訊廣播裝置150可進行圖2中的流程206。 As shown in FIG. 2 , when the audio broadcasting device 150 needs to perform audio broadcasting, the audio broadcasting device 150 can perform the process 206 in FIG. 2 .
在流程206中,音訊廣播裝置150可進入一預定傳送模式。前述的預定傳送模式指的是可用來傳送各種藍牙廣告封包、各種BIS協定資料單元、和/或各種BIG協定資料單元的各種操作模式。 In process 206, the audio broadcast device 150 may enter a predetermined transmission mode. The aforementioned predetermined transmission modes refer to various operating modes that can be used to transmit various Bluetooth advertising packets, various BIS protocol data units, and/or various BIG protocol data units.
例如,前述的預定傳送模式可以是一廣告模式(Advertising mode)、一可掃描模式(Scannable mode)、一可連線模式(Connectable mode)、一不可連線模式(Non-connectable mode)、一不可掃描模式(Non-scannable mode)、一周期性廣告模式(Periodic Advertising mode)、一低功耗拓展廣告模式(LE Extended Advertising mode)、或一低功耗周期性廣告模式(LE Periodic Advertising mode)。又例如,前述的預定傳送模式可以是可透過BIS邏輯傳輸通道來傳送各種BIS協定資料單元、和/或可透過BIG邏輯傳輸通道來傳送各種BIG協定資料單元的一等時廣播模式(Broadcast Isochronous Broadcasting mode)、或一廣播等時同步性模式(Broadcast Isochronous Synchronization mode)。或者,前述的預定傳送模式也可以是前述的各種操作模式的搭配組合。 For example, the aforementioned predetermined transmission mode may be an advertising mode (Advertising mode), a scannable mode (Scannable mode), a connectable mode (Connectable mode). mode), a non-connectable mode (Non-connectable mode), a non-scannable mode (Non-scannable mode), a periodic advertising mode (Periodic Advertising mode), a low-power extended advertising mode (LE Extended Advertising mode) , or a low-power periodic advertising mode (LE Periodic Advertising mode). For another example, the aforementioned predetermined transmission mode may be a Broadcast Isochronous Broadcasting mode that can transmit various BIS protocol data units through the BIS logical transmission channel, and/or can transmit various BIG protocol data units through the BIG logical transmission channel. mode), or a Broadcast Isochronous Synchronization mode. Alternatively, the aforementioned predetermined transmission mode may also be a combination of the aforementioned various operation modes.
在流程208中,音訊廣播裝置150可將與一預定音量大小(predetermined volume)相對應的一預定音量指示,插入一或多個預定資料項目中。音訊廣播裝置150可將前述的預定音量大小,設置成對大多數人而言是舒適而不會覺得過大的音量(例如,45~60分貝左右),並可用各種合適的資料格式、索引值、或數值來表達前述的預定音量大小。在運作時,音訊廣播裝置150可將預定音量指示插入單一個預定資料項目的單一或多個特定欄位中,或是分散插入多個預定資料項目的特定欄位中。在某些實施例中,除了預定音量指示之外,音訊廣播裝置150還可將音訊廣播裝置150的一藍牙位址、和/或音訊廣播裝置150即將開始進行音訊廣播的一指示信息,也共同插入前述的單一個預定資料項目的單一或多個特定欄位中,或是分散插入多個預定資料項目的特定欄位中。 In process 208, the audio broadcast device 150 may insert a predetermined volume indication corresponding to a predetermined volume into one or more predetermined data items. The audio broadcasting device 150 can set the aforementioned predetermined volume to a volume that is comfortable and not too loud for most people (for example, about 45 to 60 decibels), and can use various suitable data formats, index values, Or a numerical value to express the aforementioned predetermined volume. During operation, the audio broadcasting device 150 may insert the predetermined volume indication into a single or multiple specific fields of a single predetermined data item, or may insert the predetermined volume indication into specific fields of multiple predetermined data items. In some embodiments, in addition to the predetermined volume indication, the audio broadcasting device 150 may also send a Bluetooth address of the audio broadcasting device 150 and/or an indication that the audio broadcasting device 150 is about to start audio broadcasting. Insert into single or multiple specific fields of the aforementioned single predetermined data item, or insert into specific fields of multiple predetermined data items dispersedly.
例如,在前述的預定資料項目是各種藍牙廣告封包的某些實施例中,音訊廣播裝置150可將前述的預定音量指示、音訊廣播裝置150的藍牙位址、和/或指示信息,插入單一個藍牙廣告封包的單一或多個特定欄位中,或是分散插入多個藍牙廣告封包的特定欄位中。 For example, in some embodiments in which the aforementioned predetermined data items are various Bluetooth advertising packets, the audio broadcast device 150 may insert the aforementioned predetermined volume indication, the Bluetooth address of the audio broadcast device 150, and/or the indication information into a single In single or multiple specific fields of the Bluetooth advertising packet, or inserted into specific fields of multiple Bluetooth advertising packets.
又例如,在前述的預定資料項目是各種BIS協定資料單元或BIG協定 資料單元的某些實施例中,音訊廣播裝置150可將前述的預定音量指示、音訊廣播裝置150的藍牙位址、和/或指示信息,插入單一個BIS協定資料單元或BIG協定資料單元的單一或多個特定欄位中,或是分散插入多個BIS協定資料單元或BIG協定資料單元的特定欄位中。實作上,前述的特定欄位可以是BIS協定資料單元或BIG協定資料單元中的事件計數(Event Counter)欄位、子事件計數(Sub-Event Counter)欄位、或負載計數(Payload Counter)欄位等等。 For another example, the aforementioned predetermined data items are various BIS protocol data units or BIG protocol In some embodiments of the data unit, the audio broadcast device 150 may insert the aforementioned predetermined volume indication, the Bluetooth address of the audio broadcast device 150, and/or the indication information into a single BIS protocol data unit or a single BIG protocol data unit. Or multiple specific fields, or dispersedly inserted into specific fields of multiple BIS protocol data units or BIG protocol data units. In practice, the aforementioned specific fields may be the event counter (Event Counter) field, sub-event counter (Sub-Event Counter) field, or payload counter (Payload Counter) in the BIS protocol data unit or BIG protocol data unit. Column etc.
在流程210中,音訊廣播裝置150可在預定傳送模式下,將前述的一或多個預定資料項目傳送出去,以使得在音訊廣播裝置150的藍牙信號傳輸範圍內的第一藍牙成員裝置110及第二藍牙成員裝置120、以及其他藍牙裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140),能夠接收到前述的一或多個預定資料項目。 In process 210, the audio broadcasting device 150 may transmit the aforementioned one or more predetermined data items in a predetermined transmission mode, so that the first Bluetooth member device 110 within the Bluetooth signal transmission range of the audio broadcasting device 150 and The second Bluetooth member device 120 and other Bluetooth devices (for example, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140) can receive the aforementioned one or more predetermined data items.
例如,在前述的預定傳送模式是可掃描模式、可連線模式、不可連線模式、或不可掃描模式的某些實施例中,前述流程208與流程210中所指稱的一或多個預定資料項目,可以是一或多個輔助廣告指示(auxiliary advertising indication,AUX_ADV_IND)封包。或者,前述流程208與流程210中所指稱的一或多個預定資料項目,也可以是一或多個廣告拓展指示(extended advertising indication,ADV_EXT_IND)封包、與一或多個輔助廣告指示(AUX_ADV_IND)封包所形成的一組封包。 For example, in some embodiments in which the aforementioned predetermined transmission mode is a scannable mode, a connectable mode, a non-connectable mode, or a non-scannable mode, one or more predetermined data referred to in the aforementioned processes 208 and 210 The item may be one or more auxiliary advertising indication (AUX_ADV_IND) packets. Alternatively, the one or more predetermined data items referred to in the aforementioned processes 208 and 210 may also be one or more extended advertising indication (ADV_EXT_IND) packets and one or more auxiliary advertising indications (AUX_ADV_IND). A group of packets formed by packets.
在此情況下,倘若前述的預定接收模式是低功耗拓展被動掃描模式、低功耗拓展主動掃描模式、或是低功耗拓展發起者模式,則第一藍牙通信電路111及第二藍牙通信電路121可進行流程212,以接收音訊廣播裝置150傳來的一或多個預定資料項目。 In this case, if the aforementioned predetermined reception mode is a low-power extended passive scanning mode, a low-power extended active scanning mode, or a low-power extended initiator mode, then the first Bluetooth communication circuit 111 and the second Bluetooth communication The circuit 121 may perform process 212 to receive one or more predetermined data items from the audio broadcast device 150 .
又例如,在前述的預定傳送模式是不可連線模式、或不可掃描模式的某些實施例中,前述流程208與流程210中所指稱的一或多個預定資料項目,可以是一或多個輔助鏈接指示(auxiliary chain indication, AUX_CHAIN_IND)封包。或者,前述流程208與流程210中所指稱的一或多個預定資料項目,也可以是一或多個廣告拓展指示(ADV_EXT_IND)封包、一或多個輔助廣告指示(AUX_ADV_IND)封包、與一或多個輔助鏈接指示(AUX_CHAIN_IND)封包所形成的一組封包。 For another example, in some embodiments in which the aforementioned predetermined transmission mode is a non-connectable mode or a non-scannable mode, the one or more predetermined data items referred to in the aforementioned processes 208 and 210 may be one or more auxiliary chain indication (auxiliary chain indication, AUX_CHAIN_IND) packet. Alternatively, the one or more predetermined data items referred to in the aforementioned processes 208 and 210 may also be one or more advertising extension indication (ADV_EXT_IND) packets, one or more auxiliary advertising indication (AUX_ADV_IND) packets, and one or A group of packets formed by multiple auxiliary link indication (AUX_CHAIN_IND) packets.
在此情況下,倘若前述的預定接收模式是低功耗拓展被動掃描模式,則第一藍牙通信電路111及第二藍牙通信電路121可進行流程212,以接收音訊廣播裝置150傳來的一或多個預定資料項目。 In this case, if the aforementioned predetermined receiving mode is the low-power extended passive scanning mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can perform the process 212 to receive an or transmitted signal from the audio broadcast device 150 Multiple reservation data items.
又例如,在前述的預定傳送模式是可掃描模式的某些實施例中,前述流程208與流程210中所指稱的一或多個預定資料項目,可以是一或多個輔助掃描回應(auxiliary scan response,AUX_SCAN_RSP)封包。或者,前述流程208與流程210中所指稱的一或多個預定資料項目,也可以是一或多個廣告拓展指示(ADV_EXT_IND)封包、一或多個輔助廣告指示(AUX_ADV_IND)封包、與一或多個輔助掃描回應(AUX_SCAN_RSP)封包所形成的一組封包。或者,前述流程208與流程210中所指稱的一或多個預定資料項目,也可以是一或多個輔助掃描回應(AUX_SCAN_RSP)封包、與一或多個輔助鏈接指示(AUX_CHAIN_IND)封包所形成的一組封包。或者,前述流程208與流程210中所指稱的一或多個預定資料項目,也可以是一或多個廣告拓展指示(ADV_EXT_IND)封包、一或多個輔助廣告指示(AUX_ADV_IND)封包、一或多個輔助掃描回應(AUX_SCAN_RSP)封包、與一或多個輔助鏈接指示(AUX_CHAIN_IND)封包所形成的一組封包。 For another example, in some embodiments where the aforementioned predetermined transmission mode is a scannable mode, the one or more predetermined data items referred to in the aforementioned process 208 and process 210 may be one or more auxiliary scan responses (auxiliary scan). response, AUX_SCAN_RSP) packet. Alternatively, the one or more predetermined data items referred to in the aforementioned processes 208 and 210 may also be one or more advertising extension indication (ADV_EXT_IND) packets, one or more auxiliary advertising indication (AUX_ADV_IND) packets, and one or A group of packets formed by multiple auxiliary scan response (AUX_SCAN_RSP) packets. Alternatively, the one or more predetermined data items referred to in the aforementioned process 208 and process 210 may also be formed by one or more auxiliary scan response (AUX_SCAN_RSP) packets and one or more auxiliary link indication (AUX_CHAIN_IND) packets. A set of packets. Alternatively, the one or more predetermined data items referred to in the aforementioned processes 208 and 210 may also be one or more advertising extension indication (ADV_EXT_IND) packets, one or more auxiliary advertising indication (AUX_ADV_IND) packets, one or more A group of packets formed by an auxiliary scan response (AUX_SCAN_RSP) packet and one or more auxiliary link indication (AUX_CHAIN_IND) packets.
在此情況下,倘若前述的預定接收模式是低功耗拓展主動掃描模式,則第一藍牙通信電路111及第二藍牙通信電路121可進行流程212,以接收音訊廣播裝置150傳來的一或多個預定資料項目。 In this case, if the aforementioned predetermined receiving mode is the low-power extended active scanning mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can perform the process 212 to receive an or transmitted signal from the audio broadcast device 150 Multiple reservation data items.
又例如,在前述的預定傳送模式是不可連線模式、不可掃描模式、 周期性廣告模式、低功耗拓展廣告模式、或低功耗周期性廣告模式的某些實施例中,前述流程208與流程210中所指稱的一或多個預定資料項目,可以是一或多個輔助同步指示(auxiliary synchronous indication,AUX_SYNC_IND)封包。或者,前述流程208與流程210中所指稱的一或多個預定資料項目,也可以是一或多個廣告拓展指示(ADV_EXT_IND)封包、一或多個輔助廣告指示(AUX_ADV_IND)封包、與一或多個輔助同步指示(AUX_SYNC_IND)封包所形成的一組封包。 For another example, the aforementioned predetermined transmission mode is a non-connectable mode, a non-scannable mode, In some embodiments of periodic advertising mode, low power consumption extended advertising mode, or low power consumption periodic advertising mode, one or more predetermined data items referred to in the aforementioned process 208 and process 210 may be one or more An auxiliary synchronous indication (AUX_SYNC_IND) packet. Alternatively, the one or more predetermined data items referred to in the aforementioned processes 208 and 210 may also be one or more advertising extension indication (ADV_EXT_IND) packets, one or more auxiliary advertising indication (AUX_ADV_IND) packets, and one or A group of packets formed by multiple AUX_SYNC_IND packets.
在此情況下,倘若前述的預定接收模式是周期性掃描模式,則第一藍牙通信電路111及第二藍牙通信電路121可進行流程212,以接收音訊廣播裝置150傳來的一或多個預定資料項目。 In this case, if the aforementioned scheduled reception mode is a periodic scanning mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can perform the process 212 to receive one or more scheduled messages from the audio broadcast device 150 Data items.
又例如,在前述的預定傳送模式是藍牙4.0版本的藍牙通信協定所規範的廣告模式的某些實施例中,前述流程208與流程210中所指稱的一或多個預定資料項目,可以是一或多個廣告指示(advertising indication,ADV_IND)封包、一或多個不可連接廣告指示(non-connectable advertising indication,ADV_NONCONN_IND)封包、或是一或多個可查廣告指示(discoverable advertisement indication,ADV_DISCOVER_IND)封包。或者,前述流程208與流程210中所指稱的一或多個預定資料項目,也可以是一或多個廣告指示(ADV_IND)封包、與一或多個不可連接廣告指示(ADV_NONCONN_IND)封包所形成的一組封包。或者,前述流程208與流程210中所指稱的一或多個預定資料項目,也可以是一或多個廣告指示(ADV_IND)封包、與一或多個可查廣告指示(ADV_DISCOVER_IND)封包所形成的一組封包。或者,前述流程208與流程210中所指稱的一或多個預定資料項目,也可以是一或多個廣告指示(ADV_IND)封包、一或多個不可連接廣告指示(ADV_NONCONN_IND)封包、與一或多個可查廣告指示 (ADV_DISCOVER_IND)封包所形成的一組封包。 For another example, in some embodiments in which the aforementioned predetermined transmission mode is the advertising mode specified by the Bluetooth communication protocol of Bluetooth version 4.0, one or more predetermined data items referred to in the aforementioned process 208 and process 210 may be a or multiple advertising indication (ADV_IND) packets, one or more non-connectable advertising indication (ADV_NONCONN_IND) packets, or one or more discoverable advertisement indication (ADV_DISCOVER_IND) packets . Alternatively, the one or more predetermined data items referred to in the aforementioned process 208 and process 210 may also be formed by one or more advertising indication (ADV_IND) packets and one or more non-connectable advertising indication (ADV_NONCONN_IND) packets. A set of packets. Alternatively, the one or more predetermined data items referred to in the aforementioned processes 208 and 210 may also be formed by one or more advertising indication (ADV_IND) packets and one or more searchable advertising indication (ADV_DISCOVER_IND) packets. A set of packets. Alternatively, the one or more predetermined data items referred to in the aforementioned process 208 and process 210 may also be one or more advertising indication (ADV_IND) packets, one or more non-connectable advertising indication (ADV_NONCONN_IND) packets, and one or Multiple searchable advertising instructions (ADV_DISCOVER_IND) packets form a group of packets.
在此情況下,倘若前述的預定接收模式是可以接收前述預定資料項目的模式,則第一藍牙通信電路111及第二藍牙通信電路121可進行流程212,以接收音訊廣播裝置150傳來的一或多個預定資料項目。 In this case, if the aforementioned predetermined receiving mode is a mode that can receive the aforementioned predetermined data item, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can perform the process 212 to receive a message from the audio broadcast device 150 or multiple scheduled data items.
又例如,在前述的預定傳送模式是等時廣播模式、或廣播等時同步性模式的某些實施例中,前述流程208與流程210中所指稱的一或多個預定資料項目,可以是一或多個BIS協定資料單元。或者,前述流程208與流程210中所指稱的一或多個預定資料項目,也可以是一或多個BIG協定資料單元。或者,前述流程208與流程210中所指稱的一或多個預定資料項目,也可以是一或多個BIS協定資料單元、與一或多個BIG協定資料單元所形成的一組協定資料單元。 For another example, in some embodiments in which the aforementioned predetermined transmission mode is an isochronous broadcast mode or a broadcast isochronous synchronization mode, one or more predetermined data items referred to in the aforementioned processes 208 and 210 may be a or multiple BIS protocol data units. Alternatively, one or more predetermined data items referred to in the aforementioned processes 208 and 210 may also be one or more BIG agreement data units. Alternatively, the one or more predetermined data items referred to in the aforementioned processes 208 and 210 may also be a set of agreement data units formed by one or more BIS agreement data units and one or more BIG agreement data units.
在此情況下,倘若前述的預定接收模式是可透過BIS邏輯傳輸通道來接收各種協定資料單元、和/或可透過BIG邏輯傳輸通道來接收各種協定資料單元的操作模式,則第一藍牙通信電路111及第二藍牙通信電路121可進行流程212,以接收音訊廣播裝置150傳來的一或多個預定資料項目。 In this case, if the aforementioned predetermined receiving mode is an operation mode that can receive various protocol data units through the BIS logical transmission channel, and/or can receive various protocol data units through the BIG logical transmission channel, then the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 may perform the process 212 to receive one or more predetermined data items from the audio broadcast device 150 .
接下來,第一藍牙成員裝置110會進行流程214及流程216,而第二藍牙成員裝置120則會進行流程218及流程220。 Next, the first Bluetooth member device 110 will perform the process 214 and the process 216, and the second Bluetooth member device 120 will perform the process 218 and the process 220.
在流程214中,第一控制電路114可解析第一藍牙通信電路111所接收到的一或多個預定資料項目,以擷取出與一預定音量大小相對應的一預定音量指示。在某些實施例中,第一控制電路114還可從第一藍牙通信電路111所接收到的一或多個預定資料項目中,擷取出音訊廣播裝置150的一藍牙位址、和/或音訊廣播裝置150即將開始進行音訊廣播的一指示信息。 In process 214, the first control circuit 114 may parse one or more predetermined data items received by the first Bluetooth communication circuit 111 to retrieve a predetermined volume indication corresponding to a predetermined volume level. In some embodiments, the first control circuit 114 can also retrieve a Bluetooth address and/or audio of the audio broadcast device 150 from one or more predetermined data items received by the first Bluetooth communication circuit 111 An instruction message indicating that the broadcasting device 150 is about to start audio broadcasting.
在流程216中,第一控制電路114可依據預定音量指示,控制第一音訊處理電路112預先設置第一音訊播放電路113的一音量大小。在運作時,第一控制電路114可依據預定音量指示,控制第一音訊處理 電路112預先設置第一音訊播放電路113的增益值,以設置第一音訊播放電路113的音量大小。 In process 216, the first control circuit 114 may control the first audio processing circuit 112 to preset a volume level of the first audio playback circuit 113 according to the predetermined volume instruction. During operation, the first control circuit 114 can control the first audio processing according to the predetermined volume indication. The circuit 112 pre-sets the gain value of the first audio playback circuit 113 to set the volume of the first audio playback circuit 113 .
在流程218中,第二控制電路124可解析第二藍牙通信電路121所接收到的一或多個預定資料項目,以擷取出與一預定音量大小相對應的一預定音量指示。在某些實施例中,第二控制電路124還可從第二藍牙通信電路121所接收到的一或多個預定資料項目中,擷取出音訊廣播裝置150的一藍牙位址、和/或音訊廣播裝置150即將開始進行音訊廣播的一指示信息。 In process 218, the second control circuit 124 may parse one or more predetermined data items received by the second Bluetooth communication circuit 121 to retrieve a predetermined volume indication corresponding to a predetermined volume level. In some embodiments, the second control circuit 124 can also retrieve a Bluetooth address and/or audio of the audio broadcast device 150 from one or more predetermined data items received by the second Bluetooth communication circuit 121 An instruction message indicating that the broadcasting device 150 is about to start audio broadcasting.
在流程220中,第二控制電路124可依據預定音量指示,控制第二音訊處理電路122預先設置第二音訊播放電路123的一音量大小。在運作時,第二控制電路124可依據預定音量指示,控制第二音訊處理電路122預先設置第二音訊播放電路123的增益值,以設置第二音訊播放電路123的音量大小。 In the process 220, the second control circuit 124 can control the second audio processing circuit 122 to preset a volume level of the second audio playback circuit 123 according to the predetermined volume instruction. During operation, the second control circuit 124 can control the second audio processing circuit 122 to preset the gain value of the second audio playback circuit 123 according to the predetermined volume instruction to set the volume of the second audio playback circuit 123 .
第一藍牙成員裝置110及第二藍牙成員裝置120所接收到的預定音量指示,會對應於音訊廣播裝置150所設定的一預定音量大小。如前所述,前述的預定音量大小對大多數人而言是舒適而不會覺得過大的音量,例如,45~60分貝左右。 The predetermined volume indication received by the first Bluetooth member device 110 and the second Bluetooth member device 120 will correspond to a predetermined volume set by the audio broadcast device 150 . As mentioned before, the aforementioned predetermined volume level is a volume that is comfortable for most people and does not feel too loud, for example, about 45 to 60 decibels.
在前述的流程216中,第一控制電路114可依據預定音量指示,控制第一音訊處理電路112設置第一音訊播放電路113的增益值,以將第一音訊播放電路113的音量大小,預先調整成接近或等於前述的預定音量大小。 In the aforementioned process 216, the first control circuit 114 can control the first audio processing circuit 112 to set the gain value of the first audio playback circuit 113 according to the predetermined volume instruction, so as to pre-adjust the volume of the first audio playback circuit 113. to be close to or equal to the aforementioned predetermined volume.
同樣地,在前述的流程220中,第二控制電路124可依據預定音量指示,控制第二音訊處理電路122設置第二音訊播放電路123的增益值,以將第二音訊播放電路123的音量大小,預先調整成接近或等於前述的預定音量大小。 Similarly, in the aforementioned process 220, the second control circuit 124 can control the second audio processing circuit 122 to set the gain value of the second audio playback circuit 123 according to the predetermined volume indication, so as to adjust the volume of the second audio playback circuit 123. , pre-adjusted to be close to or equal to the aforementioned predetermined volume.
換言之,在本實施例中,第一藍牙成員裝置110及第二藍牙成員裝置120在播放音訊廣播裝置150傳來的音訊資料之前,就會先依據音 訊廣播裝置150傳來的預定音量指示,分別將第一音訊播放電路113及第二音訊播放電路123的音量大小,調整成接近或等於前述的預定音量大小。 In other words, in this embodiment, before playing the audio data from the audio broadcasting device 150, the first Bluetooth member device 110 and the second Bluetooth member device 120 will first The predetermined volume instructions from the audio broadcast device 150 respectively adjust the volume of the first audio playback circuit 113 and the second audio playback circuit 123 to be close to or equal to the aforementioned predetermined volume.
在流程222中,音訊廣播裝置150可產生包含一預定音訊資料的一或多個低功耗藍牙音訊封包(Bluetooth LE audio packet)。在運作時,音訊廣播裝置150可採用低複雜度通信編解碼器(Low Complexity Communication Codec,LC3)對預定音訊資料進行編碼,並將編碼後的資料插入一或多個低功耗藍牙音訊封包中。實作上,音訊廣播裝置150也可採用其他合適的編碼方式對預定音訊資料進行編碼。 In process 222, the audio broadcast device 150 may generate one or more Bluetooth LE audio packets including a predetermined audio data. During operation, the audio broadcasting device 150 may use a Low Complexity Communication Codec (LC3) to encode predetermined audio data, and insert the encoded data into one or more Bluetooth low energy audio packets. . In practice, the audio broadcasting device 150 may also use other suitable encoding methods to encode the predetermined audio data.
在流程224中,音訊廣播裝置150可透過一或多個BIS邏輯傳輸通道,來廣播包含前述的預定音訊資料的一或多個低功耗藍牙音訊封包。在運作時,音訊廣播裝置150可根據BLE音訊技術所規範的方式進行運作,以向其他藍牙成員裝置廣播包含預定音訊資料的低功耗藍牙音訊封包。 In process 224, the audio broadcast device 150 may broadcast one or more Bluetooth low energy audio packets including the aforementioned predetermined audio data through one or more BIS logical transmission channels. During operation, the audio broadcast device 150 may operate according to the standard of BLE audio technology to broadcast low-power Bluetooth audio packets including predetermined audio data to other Bluetooth member devices.
在流程226中,第一藍牙成員裝置110的第一藍牙通信電路111會透過前述的一或多個BIS邏輯傳輸通道,接收音訊廣播裝置150發送的一或多個低功耗藍牙音訊封包,而第二藍牙成員裝置120的第二藍牙通信電路121也會透過前述的一或多個BIS邏輯傳輸通道,接收音訊廣播裝置150發送的一或多個低功耗藍牙音訊封包。 In process 226, the first Bluetooth communication circuit 111 of the first Bluetooth member device 110 receives one or more low-power Bluetooth audio packets sent by the audio broadcast device 150 through the aforementioned one or more BIS logical transmission channels, and The second Bluetooth communication circuit 121 of the second Bluetooth member device 120 will also receive one or more low-power Bluetooth audio packets sent by the audio broadcast device 150 through the aforementioned one or more BIS logical transmission channels.
接下來,第一藍牙成員裝置110會進行流程228及流程230,而第二藍牙成員裝置120則會進行流程232及流程234。 Next, the first Bluetooth member device 110 will perform the process 228 and the process 230, and the second Bluetooth member device 120 will perform the process 232 and the process 234.
在流程228中,第一控制電路114可解析第一藍牙通信電路111所接收到的一或多個低功耗藍牙音訊封包,以擷取出音訊廣播裝置150所產生的預定音訊資料。 In process 228, the first control circuit 114 may parse one or more Bluetooth low energy audio packets received by the first Bluetooth communication circuit 111 to retrieve predetermined audio data generated by the audio broadcast device 150.
在流程230中,第一控制電路114可指示第一音訊處理電路112控制第一音訊播放電路113播放預定音訊資料。 In process 230, the first control circuit 114 may instruct the first audio processing circuit 112 to control the first audio playing circuit 113 to play predetermined audio data.
在流程232中,第二控制電路124可解析第二藍牙通信電路121所接 收到的一或多個低功耗藍牙音訊封包,以擷取出音訊廣播裝置150所產生的預定音訊資料。 In process 232, the second control circuit 124 may analyze the data connected to the second Bluetooth communication circuit 121. One or more Bluetooth low energy audio packets are received to retrieve predetermined audio data generated by the audio broadcast device 150 .
在流程234中,第二控制電路124可指示第二音訊處理電路122控制第二音訊播放電路123播放預定音訊資料。 In process 234, the second control circuit 124 may instruct the second audio processing circuit 122 to control the second audio playing circuit 123 to play predetermined audio data.
由於第一藍牙成員裝置110及第二藍牙成員裝置120都是透過BIS邏輯傳輸通道來接收音訊廣播裝置150發送的低功耗藍牙音訊封包,所以當第一音訊播放電路113播放預定音訊資料時,第二音訊播放電路123也會同步播放預定音訊資料。換言之,流程230與流程234會同時進行。 Since the first Bluetooth member device 110 and the second Bluetooth member device 120 both receive low-power Bluetooth audio packets sent by the audio broadcast device 150 through the BIS logical transmission channel, when the first audio playback circuit 113 plays the predetermined audio data, The second audio playing circuit 123 will also play predetermined audio data synchronously. In other words, process 230 and process 234 are performed simultaneously.
音訊廣播裝置150可重複進行流程222及流程224以廣播後續的預定音訊資料。另一方面,第一藍牙成員裝置110可重複進行流程226、流程228、及流程230以接收及播放後續的預定音訊資料,而第二藍牙成員裝置120則可重複進行流程226、流程232、及流程234以接收及播放後續的預定音訊資料。 The audio broadcasting device 150 may repeat the process 222 and the process 224 to broadcast subsequent scheduled audio data. On the other hand, the first Bluetooth member device 110 can repeat the process 226, the process 228, and the process 230 to receive and play subsequent scheduled audio data, and the second Bluetooth member device 120 can repeat the process 226, the process 232, and the process 230. Process 234 is to receive and play subsequent scheduled audio data.
同樣地,藍牙音訊廣播系統100中的其他藍牙成員裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140),可以比照前述的第一藍牙成員裝置110或第二藍牙成員裝置120的運作方式,接收音訊廣播裝置150所廣播的低功耗藍牙音訊封包,並播放低功耗藍牙音訊封包中的預定音訊資料。 Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting system 100 (for example, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140) can refer to the aforementioned first Bluetooth member device 110 or the second Bluetooth member device. The operation mode of 120 is to receive the low-power Bluetooth audio packet broadcast by the audio broadcasting device 150 and play the predetermined audio data in the low-power Bluetooth audio packet.
由前述圖1至圖2的說明可知,在開始播放音訊廣播裝置150傳來的預定音訊資料之前,第一藍牙成員裝置110及第二藍牙成員裝置120就會先依據音訊廣播裝置150傳來的預定音量指示,分別將第一音訊播放電路113及第二音訊播放電路123的音量大小,調整成接近或等於前述的預定音量大小。 As can be seen from the description of FIGS. 1 to 2 , before starting to play the predetermined audio data transmitted from the audio broadcasting device 150 , the first Bluetooth member device 110 and the second Bluetooth member device 120 will first play the predetermined audio data transmitted from the audio broadcasting device 150 . The predetermined volume instruction adjusts the volume of the first audio playback circuit 113 and the second audio playback circuit 123 to be close to or equal to the aforementioned predetermined volume.
因此,當第一藍牙成員裝置110開始利用第一音訊播放電路113播放音訊廣播裝置150傳來的預定音訊資料時,第一音訊播放電路113發出的音量大小會接近或等於前述的預定音量大小。同樣地,當第二 藍牙成員裝置120開始利用第二音訊播放電路123播放音訊廣播裝置150傳來的預定音訊資料時,第二音訊播放電路123發出的音量大小也會接近或等於前述的預定音量大小。 Therefore, when the first Bluetooth member device 110 starts to use the first audio playing circuit 113 to play the predetermined audio data from the audio broadcasting device 150, the volume emitted by the first audio playing circuit 113 will be close to or equal to the aforementioned predetermined volume. Likewise, when the second When the Bluetooth member device 120 starts to use the second audio playing circuit 123 to play the predetermined audio data from the audio broadcasting device 150, the volume emitted by the second audio playing circuit 123 will be close to or equal to the aforementioned predetermined volume.
如此一來,第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時所發出的音量大小,就能讓使用者感到舒適,而不會造成使用者感到不適或不悅。 In this way, the volume emitted when the first audio playback circuit 113 and the second audio playback circuit 123 start to play the predetermined audio data synchronously can make the user feel comfortable without causing discomfort or displeasure to the user.
此外,由於第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時的音量大小,已被預先設置成接近或等於前述的預定音量大小,所以就算音訊廣播裝置150是在使用者沒有心理預期的情況下開始進行音訊廣播,也能避免使用者因為突如其來的音訊廣播的音量過大而受到驚嚇的問題發生。 In addition, since the volume when the first audio playing circuit 113 and the second audio playing circuit 123 start to play the predetermined audio data synchronously has been preset to be close to or equal to the aforementioned predetermined volume, even if the audio broadcasting device 150 is in use It can also prevent users from being frightened by sudden audio broadcasts when the volume of the audio broadcast is too loud.
在前述的實施例中,藍牙音訊廣播系統100是採用BLE音訊技術來進行音訊廣播,而且音訊廣播裝置150可採用低複雜度通信編解碼器(LC3)對預定音訊資料進行編碼。因此,相較於傳統的音訊廣播方式而言,藍牙音訊廣播系統100所採用的前述音訊廣播方法,不僅可降低第一藍牙成員裝置110及第二藍牙成員裝置120的耗電量,進而延長第一藍牙成員裝置110及第二藍牙成員裝置120的使用時間,還能有效提升音訊廣播的整體音訊品質。 In the aforementioned embodiments, the Bluetooth audio broadcasting system 100 uses BLE audio technology for audio broadcasting, and the audio broadcasting device 150 can use a low-complexity communication codec (LC3) to encode predetermined audio data. Therefore, compared with the traditional audio broadcasting method, the aforementioned audio broadcasting method adopted by the Bluetooth audio broadcasting system 100 can not only reduce the power consumption of the first Bluetooth member device 110 and the second Bluetooth member device 120, but also extend the time of the first Bluetooth member device 110 and the second Bluetooth member device 120. The usage time of the first Bluetooth member device 110 and the second Bluetooth member device 120 can also effectively improve the overall audio quality of the audio broadcast.
同樣地,藍牙音訊廣播系統100中的其他藍牙成員裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140),在開始播放音訊廣播裝置150傳來的預定音訊資料之前,就會先依據音訊廣播裝置150傳來的預定音量指示,分別將相關的音訊播放電路(圖中未繪示)的音量大小,調整成接近或等於前述的預定音量大小。 Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting system 100 (for example, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140), before starting to play the predetermined audio data transmitted from the audio broadcasting device 150, According to the predetermined volume instruction from the audio broadcasting device 150, the volume of the relevant audio playback circuit (not shown in the figure) is adjusted to be close to or equal to the aforementioned predetermined volume.
如此一來,藍牙音訊廣播系統100中的其他藍牙成員裝置開始同步播放預定音訊資料時所發出的音量大小,就能讓使用者感到舒適,而不會造成使用者感到不適或不悅。 In this way, the volume emitted by other Bluetooth member devices in the Bluetooth audio broadcast system 100 when they start to play predetermined audio data synchronously can make the user feel comfortable without causing discomfort or displeasure to the user.
如前所述,當使用者聆聽前述的多成員藍牙裝置(例如,第一藍牙 成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及/或第四藍牙成員裝置140)所播放的音訊廣播時,使用者對於外界聲響的注意力難免會有所降低、甚至有時會完全沒注意到外界的聲響。此時,萬一外界突然發生警急事件(例如,空襲警報、海嘯警報、火災警報、緊急廣報、里長語音廣播等情況),使用者可能會因為沒聽到外界的警報聲響而身陷危險情境或延誤反應時機。 As mentioned above, when the user listens to the aforementioned multi-member Bluetooth device (for example, the first Bluetooth When the audio played by the member device 110, the second Bluetooth member device 120, the third Bluetooth member device 130, and/or the fourth Bluetooth member device 140) is broadcast, the user's attention to the external sounds will inevitably be reduced, or even Sometimes I don't notice the outside sounds at all. At this time, if an emergency event suddenly occurs outside (for example, air raid sirens, tsunami sirens, fire alarms, emergency broadcasts, voice broadcasts, etc.), the user may be in danger because he does not hear the sirens from the outside world. Situation or delayed response timing.
為了避免前述的問題,圖1實施例中的音訊廣播裝置150還包含一偵測電路152,設置成可偵測外界傳來的警報信號(例如,地震預警訊息、海嘯預警訊息)、或是特定環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。 In order to avoid the aforementioned problems, the audio broadcasting device 150 in the embodiment of FIG. 1 also includes a detection circuit 152 configured to detect warning signals from the outside (for example, earthquake warning messages, tsunami warning messages), or specific Environmental sounds (for example, air raid sirens, fire alarms, emergency broadcasts, or resident voice broadcasts, etc.).
在前述的多成員藍牙裝置播放音訊廣播裝置150傳來的音訊廣播的過程中,偵測電路152會偵測音訊廣播裝置150是否接收到預定的警報信號(例如,官方或其他單位透過電信系統或各種無線傳輸機制發送的地震預警訊息、海嘯預警訊息等)、或是特定的環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。實作上,偵測電路152可利用音訊廣播裝置150的一處理電路(未繪示)和/或各種合適的聲音接收及辨識電路(例如,一麥克風與一聲音辨識電路的搭配,未繪示於圖中)來實現。 During the process of the aforementioned multi-member Bluetooth device playing the audio broadcast from the audio broadcast device 150, the detection circuit 152 will detect whether the audio broadcast device 150 receives a predetermined alarm signal (for example, the official or other unit through the telecommunications system or Earthquake warning messages, tsunami warning messages, etc. sent by various wireless transmission mechanisms, or specific environmental sounds (for example, air raid sirens, fire alarms, emergency broadcasts, or mileage voice broadcasts, etc.). In practice, the detection circuit 152 may utilize a processing circuit (not shown) of the audio broadcast device 150 and/or various suitable sound receiving and recognition circuits (for example, a combination of a microphone and a sound recognition circuit, not shown). in the figure) to achieve.
例如,偵測電路152可偵測音訊廣播裝置150是否接收到官方或其他單位,透過電信系統或其他無線傳輸機制傳來的地震預警訊息、海嘯預警訊息等警報信號。 For example, the detection circuit 152 can detect whether the audio broadcast device 150 receives warning signals such as earthquake warning messages, tsunami warning messages, etc. transmitted from the official or other units through telecommunication systems or other wireless transmission mechanisms.
又例如,偵測電路152可接收外界環境的聲響,並將接收到的聲響與一或多個預定的聲響模型(例如,空襲警報、海嘯警報、或是火災警報的聲響模型)進行比對,以判斷音訊廣播裝置150的周邊環境是否發生空襲警報、海嘯警報、或是火災警報等特定的環境聲響。 For another example, the detection circuit 152 may receive sounds from the external environment and compare the received sounds with one or more predetermined sound models (for example, sound models of air raid sirens, tsunami sirens, or fire alarms), To determine whether specific environmental sounds such as air raid sirens, tsunami sirens, or fire alarms occur in the surrounding environment of the audio broadcast device 150 .
又例如,偵測電路152可接收外界環境的聲響,並對接收到的聲響內容進行語音內容解析與辨識,以判斷音訊廣播裝置150的周邊環 境是否發生各種緊急廣播、或是里長語音廣播等特定的環境聲響。 For another example, the detection circuit 152 can receive sounds from the external environment, and analyze and identify the voice content of the received sounds to determine the surrounding environment of the audio broadcast device 150. Whether there are various emergency broadcasts or specific environmental sounds such as local voice broadcasts occurring in the environment.
在本實施例中,音訊廣播裝置150可於偵測電路152偵測到前述的警報信號或是特定環境聲響時,產生一相應的標的控制指令,並傳送給第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140,以指示第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140將輸出音量降到一預定臨界值以下,以避免使用者錯過外界傳來的警報信號或特定環境聲響。如此一來,便可避免使用者身陷危險情況而不自知,或是錯過外界傳來的重要消息而延誤反應時機。 In this embodiment, the audio broadcasting device 150 can generate a corresponding target control command when the detection circuit 152 detects the aforementioned alarm signal or specific environmental sound, and transmits it to the first Bluetooth member device 110 and the second Bluetooth member device 110 . Bluetooth member device 120, third Bluetooth member device 130, and fourth Bluetooth member device 140 to indicate the first Bluetooth member device 110, second Bluetooth member device 120, third Bluetooth member device 130, and fourth Bluetooth member device 140 Reduce the output volume below a predetermined threshold to prevent the user from missing alarm signals or specific environmental sounds from the outside world. In this way, users can avoid being in dangerous situations without knowing it, or missing important information from the outside world and delaying the response time.
例如,如圖3所示,音訊廣播裝置150可在偵測電路152偵測到前述的警報信號或是特定環境聲響時,進行圖3中的流程302。 For example, as shown in FIG. 3 , the audio broadcasting device 150 may perform the process 302 in FIG. 3 when the detection circuit 152 detects the aforementioned alarm signal or specific environmental sound.
在流程302中,音訊廣播裝置150可產生用來指示多成員藍牙裝置將輸出音量大小降到一預定臨界值(例如,20分貝、15分貝、10分貝、5分貝等)以下的一標的控制指令,並將該標的控制指令插入一或多個標的資料項目中。在某些實施例中,前述的標的控制指令可以是一靜音指令(mute command)、一暫停播放指令(pause command)、或是一停止播放指令(stop command)。在另一實施例中,前述的標的控制指令可以是用來指示多成員藍牙裝置大幅調降一預定音量比例(例如,調降50%、調降70%、調降90%等)或大幅調降一預定分貝數(例如,調降20分貝、調降30分貝、調降40分貝等)的指令。在運作時,音訊廣播裝置150可將標的控制指令插入單一個標的資料項目的單一或多個特定欄位中,或是分散插入多個標的資料項目的特定欄位中。 In process 302, the audio broadcasting device 150 may generate a target control command for instructing the multi-member Bluetooth device to reduce the output volume below a predetermined threshold (for example, 20 dB, 15 dB, 10 dB, 5 dB, etc.) , and insert the target control instruction into one or more target data items. In some embodiments, the aforementioned target control command may be a mute command, a pause command, or a stop command. In another embodiment, the aforementioned target control instruction may be used to instruct the multi-member Bluetooth device to significantly reduce the volume by a predetermined proportion (for example, reduce the volume by 50%, reduce the volume by 70%, reduce the volume by 90%, etc.) or significantly reduce the volume. An instruction to decrease a predetermined number of decibels (for example, decrease by 20 decibels, decrease by 30 decibels, decrease by 40 decibels, etc.). During operation, the audio broadcasting device 150 may insert the target control instructions into one or more specific fields of a single target data item, or may insert the target control instructions into specific fields of multiple target data items.
例如,在前述的標的資料項目是各種藍牙廣告封包的某些實施例中,音訊廣播裝置150可將前述的標的控制指令,插入單一個藍牙廣告封包的單一或多個特定欄位中,或是分散插入多個藍牙廣告封包的 特定欄位中。 For example, in some embodiments in which the aforementioned target data items are various Bluetooth advertising packets, the audio broadcast device 150 may insert the aforementioned subject control instructions into single or multiple specific fields of a single Bluetooth advertising packet, or Scattered insertion of multiple Bluetooth advertising packets in a specific field.
又例如,在前述的標的資料項目是各種BIS協定資料單元或BIG協定資料單元的某些實施例中,音訊廣播裝置150可將前述的標的控制指令,插入單一個BIS協定資料單元或BIG協定資料單元的單一或多個特定欄位中,或是分散插入多個BIS協定資料單元或BIG協定資料單元的特定欄位中。實作上,前述的特定欄位可以是BIS協定資料單元或BIG協定資料單元中的事件計數(Event Counter)欄位、子事件計數(Sub-Event Counter)欄位、或負載計數(Payload Counter)欄位等等。 For another example, in some embodiments in which the aforementioned target data items are various BIS protocol data units or BIG protocol data units, the audio broadcast device 150 can insert the aforementioned subject control instructions into a single BIS protocol data unit or BIG protocol data unit. Single or multiple specific fields of the unit, or dispersedly inserted into specific fields of multiple BIS protocol data units or BIG protocol data units. In practice, the aforementioned specific fields may be the event counter (Event Counter) field, sub-event counter (Sub-Event Counter) field, or payload counter (Payload Counter) in the BIS protocol data unit or BIG protocol data unit. Column etc.
在流程304中,音訊廣播裝置150可在一標的傳送模式下,將前述的一或多個標的資料項目傳送出去,以使得在音訊廣播裝置150的藍牙信號傳輸範圍內的第一藍牙成員裝置110及第二藍牙成員裝置120、以及其他藍牙裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140),能夠接收到前述的一或多個標的資料項目。 In process 304, the audio broadcasting device 150 may transmit the aforementioned one or more target data items in a target transmission mode, so that the first Bluetooth member device 110 within the Bluetooth signal transmission range of the audio broadcasting device 150 The second Bluetooth member device 120 and other Bluetooth devices (for example, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140) can receive the aforementioned one or more target data items.
例如,在前述的標的傳送模式是可掃描模式、可連線模式、不可連線模式、或不可掃描模式的某些實施例中,前述流程302與流程304中所指稱的一或多個標的資料項目,可以是一或多個輔助廣告指示(AUX_ADV_IND)封包。或者,前述流程302與流程304中所指稱的一或多個標的資料項目,也可以是一或多個廣告拓展指示(ADV_EXT_IND)封包、與一或多個輔助廣告指示(AUX_ADV_IND)封包所形成的一組封包。 For example, in some embodiments in which the aforementioned target transmission mode is a scannable mode, a connectable mode, a non-connectable mode, or a non-scannable mode, one or more target data referred to in the aforementioned processes 302 and 304 The item can be one or more auxiliary advertising indication (AUX_ADV_IND) packets. Alternatively, the one or more target data items referred to in the aforementioned processes 302 and 304 may also be formed by one or more advertising extension instruction (ADV_EXT_IND) packets and one or more auxiliary advertising instruction (AUX_ADV_IND) packets. A set of packets.
在此情況下,倘若第一藍牙通信電路111及第二藍牙通信電路121是操作在低功耗拓展被動掃描模式、低功耗拓展主動掃描模式、或是低功耗拓展發起者模式,則第一藍牙通信電路111及第二藍牙通信電路121可進行流程306,以接收音訊廣播裝置150傳來的一或多個標的資料項目。 In this case, if the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 operate in the low-power extended passive scanning mode, the low-power extended active scanning mode, or the low-power extended initiator mode, then the A Bluetooth communication circuit 111 and a second Bluetooth communication circuit 121 may perform process 306 to receive one or more target data items from the audio broadcast device 150 .
又例如,在前述的標的傳送模式是不可連線模式、或不可掃描模式 的某些實施例中,前述流程302與流程304中所指稱的一或多個標的資料項目,可以是一或多個輔助鏈接指示(AUX_CHAIN_IND)封包。或者,前述流程302與流程304中所指稱的一或多個標的資料項目,也可以是一或多個廣告拓展指示(ADV_EXT_IND)封包、一或多個輔助廣告指示(AUX_ADV_IND)封包、與一或多個輔助鏈接指示(AUX_CHAIN_IND)封包所形成的一組封包。 For another example, the aforementioned target transmission mode is a non-connectable mode or a non-scannable mode. In some embodiments, one or more target data items referred to in the aforementioned process 302 and process 304 may be one or more auxiliary link indication (AUX_CHAIN_IND) packets. Alternatively, the one or more target data items referred to in the aforementioned process 302 and process 304 may also be one or more advertising extension indication (ADV_EXT_IND) packets, one or more auxiliary advertising indication (AUX_ADV_IND) packets, and one or A group of packets formed by multiple auxiliary link indication (AUX_CHAIN_IND) packets.
在此情況下,倘若第一藍牙通信電路111及第二藍牙通信電路121是操作在低功耗拓展被動掃描模式,則第一藍牙通信電路111及第二藍牙通信電路121可進行流程306,以接收音訊廣播裝置150傳來的一或多個標的資料項目。 In this case, if the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 operate in the low-power extended passive scanning mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can perform the process 306 to One or more target data items transmitted from the audio broadcast device 150 are received.
又例如,在前述的標的傳送模式是可掃描模式的某些實施例中,前述流程302與流程304中所指稱的一或多個標的資料項目,可以是一或多個輔助掃描回應(AUX_SCAN_RSP)封包。或者,前述流程302與流程304中所指稱的一或多個標的資料項目,也可以是一或多個廣告拓展指示(ADV_EXT_IND)封包、一或多個輔助廣告指示(AUX_ADV_IND)封包、與一或多個輔助掃描回應(AUX_SCAN_RSP)封包所形成的一組封包。或者,前述流程302與流程304中所指稱的一或多個標的資料項目,也可以是一或多個輔助掃描回應(AUX_SCAN_RSP)封包、與一或多個輔助鏈接指示(AUX_CHAIN_IND)封包所形成的一組封包。或者,前述流程302與流程304中所指稱的一或多個標的資料項目,也可以是一或多個廣告拓展指示(ADV_EXT_IND)封包、一或多個輔助廣告指示(AUX_ADV_IND)封包、一或多個輔助掃描回應(AUX_SCAN_RSP)封包、與一或多個輔助鏈接指示(AUX_CHAIN_IND)封包所形成的一組封包。 For another example, in some embodiments where the aforementioned target transmission mode is a scannable mode, one or more target data items referred to in the aforementioned processes 302 and 304 may be one or more auxiliary scan responses (AUX_SCAN_RSP). Packet. Alternatively, the one or more target data items referred to in the aforementioned process 302 and process 304 may also be one or more advertising extension indication (ADV_EXT_IND) packets, one or more auxiliary advertising indication (AUX_ADV_IND) packets, and one or A group of packets formed by multiple auxiliary scan response (AUX_SCAN_RSP) packets. Alternatively, one or more target data items referred to in the aforementioned process 302 and process 304 may also be formed by one or more auxiliary scan response (AUX_SCAN_RSP) packets and one or more auxiliary link indication (AUX_CHAIN_IND) packets. A set of packets. Alternatively, the one or more target data items referred to in the aforementioned processes 302 and 304 may also be one or more advertising extension instruction (ADV_EXT_IND) packets, one or more auxiliary advertising instruction (AUX_ADV_IND) packets, one or more A group of packets formed by an auxiliary scan response (AUX_SCAN_RSP) packet and one or more auxiliary link indication (AUX_CHAIN_IND) packets.
在此情況下,倘若第一藍牙通信電路111及第二藍牙通信電路121是操作在低功耗拓展主動掃描模式,則第一藍牙通信電路111及第二 藍牙通信電路121可進行流程306,以接收音訊廣播裝置150傳來的一或多個標的資料項目。 In this case, if the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 operate in the low-power extended active scanning mode, then the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 The Bluetooth communication circuit 121 may perform process 306 to receive one or more target data items from the audio broadcast device 150 .
又例如,在前述的標的傳送模式是不可連線模式、不可掃描模式、周期性廣告模式、低功耗拓展廣告模式、或低功耗周期性廣告模式的某些實施例中,前述流程302與流程304中所指稱的一或多個標的資料項目,可以是一或多個輔助同步指示(AUX_SYNC_IND)封包。或者,前述流程302與流程304中所指稱的一或多個標的資料項目,也可以是一或多個廣告拓展指示(ADV_EXT_IND)封包、一或多個輔助廣告指示(AUX_ADV_IND)封包、與一或多個輔助同步指示(AUX_SYNC_IND)封包所形成的一組封包。 For another example, in some embodiments in which the aforementioned target transmission mode is a non-connectable mode, a non-scannable mode, a periodic advertising mode, a low-power extended advertising mode, or a low-power periodic advertising mode, the aforementioned process 302 and The one or more target data items referred to in process 304 may be one or more auxiliary synchronization indication (AUX_SYNC_IND) packets. Alternatively, the one or more target data items referred to in the aforementioned process 302 and process 304 may also be one or more advertising extension indication (ADV_EXT_IND) packets, one or more auxiliary advertising indication (AUX_ADV_IND) packets, and one or A group of packets formed by multiple AUX_SYNC_IND packets.
在此情況下,倘若第一藍牙通信電路111及第二藍牙通信電路121是操作在周期性掃描模式,則第一藍牙通信電路111及第二藍牙通信電路121可進行流程306,以接收音訊廣播裝置150傳來的一或多個標的資料項目。 In this case, if the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 operate in the periodic scanning mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can perform the process 306 to receive the audio broadcast. One or more target data items transmitted from device 150.
又例如,在前述的標的傳送模式是藍牙4.0版本的藍牙通信協定所規範的廣告模式的某些實施例中,前述流程302與流程304中所指稱的一或多個標的資料項目,可以是一或多個廣告指示(ADV_IND)封包、一或多個不可連接廣告指示(ADV_NONCONN_IND)封包、或是一或多個可查廣告指示(ADV_DISCOVER_IND)封包。或者,前述流程302與流程304中所指稱的一或多個標的資料項目,也可以是一或多個廣告指示(ADV_IND)封包、與一或多個不可連接廣告指示(ADV_NONCONN_IND)封包所形成的一組封包。或者,前述流程302與流程304中所指稱的一或多個標的資料項目,也可以是一或多個廣告指示(ADV_IND)封包、與一或多個可查廣告指示(ADV_DISCOVER_IND)封包所形成的一組封包。或者,前述流程302與流程304中所指稱的一或多個標的資料項目,也可以是一或多個廣告指示(ADV_IND)封包、一或多個不可連接廣告指示 (ADV_NONCONN_IND)封包、與一或多個可查廣告指示(ADV_DISCOVER_IND)封包所形成的一組封包。 For another example, in some embodiments in which the aforementioned target transmission mode is the advertising mode specified by the Bluetooth communication protocol of Bluetooth version 4.0, one or more target data items referred to in the aforementioned process 302 and process 304 may be a or multiple advertising indication (ADV_IND) packets, one or more non-connectable advertising indication (ADV_NONCONN_IND) packets, or one or more searchable advertising indication (ADV_DISCOVER_IND) packets. Alternatively, one or more target data items referred to in the aforementioned process 302 and process 304 may also be formed by one or more advertising indication (ADV_IND) packets and one or more non-connectable advertising indication (ADV_NONCONN_IND) packets. A set of packets. Alternatively, the one or more target data items referred to in the aforementioned processes 302 and 304 may also be formed by one or more advertising indication (ADV_IND) packets and one or more searchable advertising indication (ADV_DISCOVER_IND) packets. A set of packets. Alternatively, one or more target data items referred to in the aforementioned process 302 and process 304 may also be one or more advertisement indication (ADV_IND) packets, one or more unconnectable advertisement indications. (ADV_NONCONN_IND) packet, and one or more searchable advertising indication (ADV_DISCOVER_IND) packets to form a group of packets.
在此情況下,倘若第一藍牙通信電路111及第二藍牙通信電路121是操作在可以接收前述標的資料項目的模式,則第一藍牙通信電路111及第二藍牙通信電路121可進行流程306,以接收音訊廣播裝置150傳來的一或多個標的資料項目。 In this case, if the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 are operated in a mode that can receive the aforementioned target data item, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can perform the process 306, To receive one or more target data items from the audio broadcast device 150 .
又例如,在前述的標的傳送模式是等時廣播模式、或廣播等時同步性模式的某些實施例中,前述流程302與流程304中所指稱的一或多個標的資料項目,可以是一或多個BIS協定資料單元。或者,前述流程302與流程304中所指稱的一或多個標的資料項目,也可以是一或多個BIG協定資料單元。或者,前述流程302與流程304中所指稱的一或多個標的資料項目,也可以是一或多個BIS協定資料單元、與一或多個BIG協定資料單元所形成的一組協定資料單元。 For another example, in some embodiments in which the aforementioned target transmission mode is an isochronous broadcast mode or a broadcast isochronous synchronization mode, one or more target data items referred to in the aforementioned processes 302 and 304 may be a or multiple BIS protocol data units. Alternatively, one or more target data items referred to in the aforementioned processes 302 and 304 may also be one or more BIG agreement data units. Alternatively, the one or more target data items referred to in the aforementioned processes 302 and 304 may also be a set of agreement data units formed by one or more BIS agreement data units and one or more BIG agreement data units.
在此情況下,倘若第一藍牙通信電路111及第二藍牙通信電路121是操作在可透過BIS邏輯傳輸通道來接收各種協定資料單元、和/或可透過BIG邏輯傳輸通道來接收各種協定資料單元的操作模式,則第一藍牙通信電路111及第二藍牙通信電路121可進行流程306,以接收音訊廣播裝置150傳來的一或多個標的資料項目。 In this case, if the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 are operated to receive various protocol data units through the BIS logical transmission channel, and/or can receive various protocol data units through the BIG logical transmission channel In the operation mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can perform the process 306 to receive one or more target data items from the audio broadcast device 150 .
接下來,第一藍牙成員裝置110會進行流程308及流程310,而第二藍牙成員裝置120則會進行流程312及流程314。 Next, the first Bluetooth member device 110 will perform the process 308 and the process 310, and the second Bluetooth member device 120 will perform the process 312 and the process 314.
在流程308中,第一控制電路114可解析第一藍牙通信電路111所接收到的一或多個標的資料項目,以擷取出一標的控制指令。 In process 308, the first control circuit 114 may parse one or more target data items received by the first Bluetooth communication circuit 111 to retrieve a target control instruction.
在流程310中,第一控制電路114可依據標的控制指令,控制第一音訊處理電路112將第一音訊播放電路113的音量降到預定臨界值以下。在運作時,第一控制電路114可依據標的控制指令,控制第一音訊處理電路112大幅調降第一音訊播放電路113的增益值或將第一音訊播放電路113的增益值調降到一預定水平以下,以將第一音訊播放 電路113的音量大小降到預定臨界值以下。或者,第一控制電路114可依據標的控制指令,控制第一音訊處理電路112將第一音訊播放電路113切換成靜音模式、暫停第一音訊播放電路113的播放運作、或是停止第一音訊播放電路113的播放運作。 In process 310, the first control circuit 114 may control the first audio processing circuit 112 to reduce the volume of the first audio playback circuit 113 below a predetermined threshold according to the target control instruction. During operation, the first control circuit 114 can control the first audio processing circuit 112 to significantly reduce the gain value of the first audio playback circuit 113 or reduce the gain value of the first audio playback circuit 113 to a predetermined value according to the target control instruction. level below to play the first audio The volume level of circuit 113 drops below a predetermined threshold value. Alternatively, the first control circuit 114 can control the first audio processing circuit 112 to switch the first audio playback circuit 113 to a silent mode, pause the playback operation of the first audio playback circuit 113, or stop the first audio playback according to the target control instruction. Playback operation of circuit 113.
在流程312中,第二控制電路124可解析第二藍牙通信電路121所接收到的一或多個標的資料項目,以擷取出一標的控制指令。 In process 312, the second control circuit 124 may parse one or more target data items received by the second Bluetooth communication circuit 121 to retrieve a target control command.
在流程314中,第二控制電路124可依據標的控制指令,控制第二音訊處理電路122將第二音訊播放電路123的音量降到預定臨界值以下。在運作時,第二控制電路124可依據標的控制指令,控制第二音訊處理電路122大幅調降第二音訊播放電路123的增益值或將第一音訊播放電路113的增益值調降到一預定水平以下,以將第二音訊播放電路123的音量大小降到預定臨界值以下。或者,第二控制電路124可依據標的控制指令,控制第二音訊處理電路122將第二音訊播放電路123切換成靜音模式、暫停第二音訊播放電路123的播放運作、或是停止第二音訊播放電路123的播放運作。 In process 314, the second control circuit 124 may control the second audio processing circuit 122 to reduce the volume of the second audio playback circuit 123 below a predetermined threshold according to the target control instruction. During operation, the second control circuit 124 can control the second audio processing circuit 122 to significantly reduce the gain value of the second audio playback circuit 123 or reduce the gain value of the first audio playback circuit 113 to a predetermined value according to the target control instruction. below the level, so as to reduce the volume of the second audio playing circuit 123 below the predetermined threshold value. Alternatively, the second control circuit 124 can control the second audio processing circuit 122 to switch the second audio playback circuit 123 to a silent mode, pause the playback operation of the second audio playback circuit 123, or stop the second audio playback according to the target control instruction. Playback operation of circuit 123.
由於第一藍牙成員裝置110及第二藍牙成員裝置120都是依據音訊廣播裝置150所發出的標的資料項目中的標的控制指令來調整音量大小,所以當第一音訊處理電路112將第一音訊播放電路113的音量大小降到預定臨界值以下時,第二音訊處理電路122也會同步將第二音訊播放電路123的音量大小降到預定臨界值以下。換言之,流程310與流程314會同步進行。 Since the first Bluetooth member device 110 and the second Bluetooth member device 120 both adjust the volume according to the target control command in the target data item issued by the audio broadcasting device 150, when the first audio processing circuit 112 plays the first audio When the volume of the circuit 113 drops below the predetermined threshold, the second audio processing circuit 122 will also simultaneously reduce the volume of the second audio playing circuit 123 to below the predetermined threshold. In other words, process 310 and process 314 will be performed simultaneously.
同樣地,藍牙音訊廣播系統100中的其他藍牙成員裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140),可以比照前述的第一藍牙成員裝置110或第二藍牙成員裝置120的運作方式,接收音訊廣播裝置150所廣播的低功耗藍牙音訊封包,播放低功耗藍牙音訊封包中的預定音訊資料,以及依據音訊廣播裝置150所發出的標的資料項目中的標的控制指令來同步將音量大小降到預定臨界 值以下。 Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting system 100 (for example, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140) can refer to the aforementioned first Bluetooth member device 110 or the second Bluetooth member device. The operation mode of 120 is to receive the low-power Bluetooth audio packet broadcast by the audio broadcast device 150, play the predetermined audio data in the low-power Bluetooth audio packet, and according to the target control command in the target data item sent by the audio broadcast device 150 to synchronize the volume down to a predetermined threshold value below.
換言之,在第一藍牙成員裝置110及第二藍牙成員裝置120播放音訊廣播裝置150所廣播的音訊資料的過程中,音訊廣播裝置150可在偵測電路152偵測到前述的警報信號或是特定環境聲響時,廣播一標的控制指令給第一藍牙成員裝置110及第二藍牙成員裝置120,以同步將第一藍牙成員裝置110及第二藍牙成員裝置120的音量大小降到預定臨界值以下。 In other words, during the process of the first Bluetooth member device 110 and the second Bluetooth member device 120 playing the audio data broadcast by the audio broadcast device 150, the audio broadcast device 150 can detect the aforementioned alarm signal or specific signal in the detection circuit 152. When there is ambient sound, a target control command is broadcast to the first Bluetooth member device 110 and the second Bluetooth member device 120 to synchronously reduce the volume of the first Bluetooth member device 110 and the second Bluetooth member device 120 below a predetermined threshold.
同樣地,在第三藍牙成員裝置130及第四藍牙成員裝置140播放音訊廣播裝置150所廣播的音訊資料的過程中,音訊廣播裝置150可在偵測電路152偵測到前述的警報信號或是特定環境聲響時,廣播一標的控制指令給第三藍牙成員裝置130及第四藍牙成員裝置140,以同步將第三藍牙成員裝置130及第四藍牙成員裝置140的音量大小降到預定臨界值以下。 Similarly, during the process of the third Bluetooth member device 130 and the fourth Bluetooth member device 140 playing the audio data broadcast by the audio broadcast device 150, the audio broadcast device 150 can detect the aforementioned alarm signal or the above in the detection circuit 152. When there is a specific environmental sound, a target control command is broadcast to the third Bluetooth member device 130 and the fourth Bluetooth member device 140 to synchronously reduce the volume of the third Bluetooth member device 130 and the fourth Bluetooth member device 140 below a predetermined threshold value. .
在前述的第一藍牙成員裝置110及第二藍牙成員裝置120是一成對的降噪耳機的實施例中,音訊廣播裝置150在利用標的控制指令指示第一藍牙成員裝置110及第二藍牙成員裝置120將音量降到預定臨界值以下之後,還可傳送一模式切換指令(mode-switching command)給第一藍牙成員裝置110及第二藍牙成員裝置120,以指示第一藍牙成員裝置110及第二藍牙成員裝置120從一降噪模式(noise cancellation mode)切換至一通透模式(transparency mode),以更進一步增加其使用者對於外界聲響的接收能力。 In the aforementioned embodiment in which the first Bluetooth member device 110 and the second Bluetooth member device 120 are a pair of noise-canceling headphones, the audio broadcast device 150 uses the target control command to instruct the first Bluetooth member device 110 and the second Bluetooth member After the device 120 reduces the volume below a predetermined threshold value, it may also send a mode-switching command to the first Bluetooth member device 110 and the second Bluetooth member device 120 to instruct the first Bluetooth member device 110 and the second Bluetooth member device 120 . The two Bluetooth member devices 120 switch from a noise cancellation mode to a transparency mode to further increase the user's ability to receive external sounds.
同樣地,在前述的第三藍牙成員裝置130及第四藍牙成員裝置140是一成對的降噪耳機的實施例中,音訊廣播裝置150在利用標的控制指令指示第三藍牙成員裝置130及第四藍牙成員裝置140將音量降到預定臨界值以下之後,還可傳送一模式切換指令給第三藍牙成員裝置130及第四藍牙成員裝置140,以指示第三藍牙成員裝置130及第四藍牙成員裝置140從一降噪模式切換至一通透模式,以更進一步 增加其使用者對於外界聲響的接收能力。 Similarly, in the aforementioned embodiment in which the third Bluetooth member device 130 and the fourth Bluetooth member device 140 are a pair of noise-canceling headphones, the audio broadcast device 150 uses the target control command to instruct the third Bluetooth member device 130 and the third Bluetooth member device 130 . After the fourth Bluetooth member device 140 reduces the volume below the predetermined threshold value, it may also send a mode switching command to the third Bluetooth member device 130 and the fourth Bluetooth member device 140 to instruct the third Bluetooth member device 130 and the fourth Bluetooth member device 140 . Device 140 switches from a noise reduction mode to a transparency mode to further Increase its user's ability to receive external sounds.
由前述圖1至圖3的說明可知,在藍牙音訊廣播系統100中的多成員藍牙裝置開始播放音訊廣播裝置150傳來的預定音訊資料之前,第一藍牙成員裝置110及第二藍牙成員裝置120就會先依據音訊廣播裝置150傳來的預定音量指示,分別將第一音訊播放電路113及第二音訊播放電路123的音量大小,調整成接近或等於前述的預定音量大小。 It can be known from the above description of FIGS. 1 to 3 that before the multi-member Bluetooth device in the Bluetooth audio broadcast system 100 starts to play the predetermined audio data transmitted from the audio broadcast device 150, the first Bluetooth member device 110 and the second Bluetooth member device 120 According to the predetermined volume instruction from the audio broadcasting device 150, the volume of the first audio playback circuit 113 and the second audio playback circuit 123 is adjusted to be close to or equal to the aforementioned predetermined volume.
因此,當第一藍牙成員裝置110開始利用第一音訊播放電路113播放音訊廣播裝置150傳來的預定音訊資料時,第一音訊播放電路113發出的音量大小會接近或等於前述的預定音量大小。同樣地,當第二藍牙成員裝置120開始利用第二音訊播放電路123播放音訊廣播裝置150傳來的預定音訊資料時,第二音訊播放電路123發出的音量大小也會接近或等於前述的預定音量大小。 Therefore, when the first Bluetooth member device 110 starts to use the first audio playing circuit 113 to play the predetermined audio data from the audio broadcasting device 150, the volume emitted by the first audio playing circuit 113 will be close to or equal to the aforementioned predetermined volume. Similarly, when the second Bluetooth member device 120 starts to use the second audio playback circuit 123 to play the predetermined audio data from the audio broadcast device 150, the volume emitted by the second audio playback circuit 123 will also be close to or equal to the aforementioned predetermined volume. size.
如此一來,第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時所發出的音量大小,就能讓使用者感到舒適,而不會造成使用者感到不適或不悅。 In this way, the volume emitted when the first audio playback circuit 113 and the second audio playback circuit 123 start to play the predetermined audio data synchronously can make the user feel comfortable without causing discomfort or displeasure to the user.
此外,由於第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時的音量大小,已被預先設置成接近或等於前述的預定音量大小,所以就算音訊廣播裝置150是在使用者沒有心理預期的情況下開始進行音訊廣播,也能避免使用者因為突如其來的音訊廣播的音量過大而受到驚嚇的問題發生。 In addition, since the volume when the first audio playing circuit 113 and the second audio playing circuit 123 start to play the predetermined audio data synchronously has been preset to be close to or equal to the aforementioned predetermined volume, even if the audio broadcasting device 150 is in use It can also prevent users from being frightened by sudden audio broadcasts when the volume of the audio broadcast is too loud.
同樣地,藍牙音訊廣播系統100中的其他藍牙成員裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140),在開始播放音訊廣播裝置150傳來的預定音訊資料之前,就會先依據音訊廣播裝置150傳來的預定音量指示,分別將相關的音訊播放電路(圖中未繪示)的音量大小,調整成接近或等於前述的預定音量大小。因此,藍牙音訊廣播系統100中的其他藍牙成員裝置開始同步播放預 定音訊資料時所發出的音量大小,也能讓使用者感到舒適,而不會造成使用者感到不適或不悅。 Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting system 100 (for example, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140), before starting to play the predetermined audio data transmitted from the audio broadcasting device 150, According to the predetermined volume instruction from the audio broadcasting device 150, the volume of the relevant audio playback circuit (not shown in the figure) is adjusted to be close to or equal to the aforementioned predetermined volume. Therefore, other Bluetooth member devices in the Bluetooth audio broadcast system 100 start to play the preset synchronously. The volume emitted when setting the audio data can also make the user feel comfortable without causing the user to feel uncomfortable or unhappy.
另外,在藍牙音訊廣播系統100中的多成員藍牙裝置播放音訊廣播裝置150所廣播的音訊資料的過程中,音訊廣播裝置150可在偵測電路152偵測到前述的警報信號或是特定環境聲響時,廣播一標的控制指令給個別藍牙成員裝置,以同步將個別藍牙成員裝置的音量大小降到預定臨界值以下。換言之,前述的藍牙音訊廣播系統100可於音訊廣播裝置150接收到警報信號(例如,地震預警訊息、海嘯預警訊息等)時、或是音訊廣播裝置150的周邊環境發生特定的環境聲響(例如,空襲警報、海嘯警報、火災警報、各種緊急廣播、或是里長語音廣播等)時,同步將藍牙音訊廣播系統100中的不同藍牙成員裝置的音量大小降到預定臨界值以下,以避免使用者因錯過外界傳來的警報信號或特定聲響,而身陷危險情況,或是延誤反應時機。 In addition, during the process of the multi-member Bluetooth devices in the Bluetooth audio broadcast system 100 playing the audio data broadcast by the audio broadcast device 150, the audio broadcast device 150 can detect the aforementioned alarm signal or specific environmental sound in the detection circuit 152. At this time, a target control command is broadcast to individual Bluetooth member devices to synchronously reduce the volume of individual Bluetooth member devices below a predetermined threshold. In other words, the aforementioned Bluetooth audio broadcasting system 100 can generate specific environmental sounds (for example, when the audio broadcasting device 150 receives an alarm signal (eg, earthquake warning message, tsunami warning message, etc.)) or the surrounding environment of the audio broadcasting device 150. (air raid alarm, tsunami alarm, fire alarm, various emergency broadcasts, or local voice broadcasts, etc.), the volume of different Bluetooth member devices in the Bluetooth audio broadcast system 100 is synchronously reduced below a predetermined critical value to prevent users from Missing warning signals or specific sounds from the outside world may lead to dangerous situations, or delays in responding.
再者,藍牙音訊廣播系統100是採用BLE音訊技術來進行音訊廣播,而且音訊廣播裝置150可採用低複雜度通信編解碼器(LC3)對預定音訊資料進行編碼。因此,相較於傳統的音訊廣播方式而言,藍牙音訊廣播系統100所採用的前述音訊廣播方法,不僅可降低多成員藍牙裝置的耗電量,進而延長多成員藍牙裝置的使用時間,還能有效提升音訊廣播的整體音訊品質。 Furthermore, the Bluetooth audio broadcasting system 100 uses BLE audio technology for audio broadcasting, and the audio broadcasting device 150 can use a low-complexity communication codec (LC3) to encode predetermined audio data. Therefore, compared with the traditional audio broadcasting method, the aforementioned audio broadcasting method adopted by the Bluetooth audio broadcasting system 100 can not only reduce the power consumption of the multi-member Bluetooth device, thereby extending the usage time of the multi-member Bluetooth device, but also Effectively improve the overall audio quality of audio broadcasts.
請參考圖4,其所繪示為本發明一第二實施例的藍牙音訊廣播系統400簡化後的功能方塊圖。類似於圖1中的藍牙音訊廣播系統100,圖4中的藍牙音訊廣播系統400同樣包含了音訊廣播裝置150以及多個藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140)。此外,藍牙音訊廣播系統400中還包含了一音訊來源裝置470。 Please refer to FIG. 4 , which shows a simplified functional block diagram of a Bluetooth audio broadcast system 400 according to a second embodiment of the present invention. Similar to the Bluetooth audio broadcast system 100 in Figure 1, the Bluetooth audio broadcast system 400 in Figure 4 also includes an audio broadcast device 150 and a plurality of Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110, the second Bluetooth member device device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140). In addition, the Bluetooth audio broadcast system 400 also includes an audio source device 470 .
音訊來源裝置470設置成可接收使用者發出的聲音以產生相應的音 訊信號AS,並可利用各種有線或無線傳輸方式將音訊信號AS傳送給音訊廣播裝置150。在圖4的實施例中,音訊廣播裝置150還設置成可將音訊來源裝置470傳來的音訊信號AS,轉換成要廣播的預定音訊資料。換言之,在圖4的實施例中,音訊廣播裝置150所廣播的預定音訊資料的內容,是源自於音訊來源裝置470。 The audio source device 470 is configured to receive sounds emitted by the user to generate corresponding sounds. The audio signal AS can be transmitted to the audio broadcasting device 150 using various wired or wireless transmission methods. In the embodiment of FIG. 4 , the audio broadcasting device 150 is further configured to convert the audio signal AS transmitted from the audio source device 470 into predetermined audio data to be broadcast. In other words, in the embodiment of FIG. 4 , the content of the predetermined audio data broadcast by the audio broadcast device 150 originates from the audio source device 470 .
在運作時,音訊廣播裝置150可採用藍牙核心規格5.2版本或較新的版本所規範的BLE音訊技術來廣播預定音訊資料。與圖1的實施例相同,音訊廣播裝置150可透過BIS邏輯傳輸通道,將包含預定音訊資料的低功耗藍牙音訊封包,向藍牙音訊廣播系統400中的多個藍牙成員裝置(例如,圖4中所繪示的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140)進行廣播。 During operation, the audio broadcast device 150 may use the BLE audio technology specified in Bluetooth core specification version 5.2 or a later version to broadcast predetermined audio data. Similar to the embodiment of FIG. 1 , the audio broadcasting device 150 can transmit low-power Bluetooth audio packets containing predetermined audio data to multiple Bluetooth member devices in the Bluetooth audio broadcasting system 400 (for example, FIG. 4 The first Bluetooth member device 110, the second Bluetooth member device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140 shown in ) perform the broadcast.
藍牙音訊廣播系統400中的各藍牙成員裝置,可比照圖1實施例中的對應裝置的運作方式,來接收及播放音訊廣播裝置150所廣播的預定音訊資料。 Each Bluetooth member device in the Bluetooth audio broadcast system 400 can receive and play the predetermined audio data broadcast by the audio broadcast device 150 according to the operation mode of the corresponding device in the embodiment of FIG. 1 .
在圖4的實施例中,音訊來源裝置470還包含一偵測電路472,設置成可偵測外界傳來的警報信號(例如,地震預警訊息、海嘯預警訊息)、或是特定環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。 In the embodiment of FIG. 4 , the audio source device 470 further includes a detection circuit 472 configured to detect alarm signals from the outside (for example, earthquake warning messages, tsunami warning messages), or specific environmental sounds (for example, , air raid alarm, fire alarm, emergency broadcast, or resident voice broadcast, etc.).
在前述的多成員藍牙裝置播放音訊廣播裝置150傳來的音訊廣播的過程中,偵測電路472會偵測音訊來源裝置470是否接收到預定的警報信號(例如,官方或其他單位透過電信系統或各種無線傳輸機制發送的地震預警訊息、海嘯預警訊息等)、或是特定的環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。實作上,偵測電路472可利用音訊來源裝置470的一處理電路(未繪示)和/或各種合適的聲音接收及辨識電路(例如,一麥克風與一聲音辨識電路的搭配,未繪示於圖中)來實現。 During the process of the aforementioned multi-member Bluetooth device playing the audio broadcast from the audio broadcast device 150, the detection circuit 472 will detect whether the audio source device 470 receives a predetermined alarm signal (for example, the official or other unit through the telecommunications system or Earthquake warning messages, tsunami warning messages, etc. sent by various wireless transmission mechanisms, or specific environmental sounds (for example, air raid sirens, fire alarms, emergency broadcasts, or mileage voice broadcasts, etc.). In practice, the detection circuit 472 may utilize a processing circuit (not shown) of the audio source device 470 and/or various suitable sound receiving and recognition circuits (for example, a combination of a microphone and a sound recognition circuit, not shown). in the figure) to achieve.
例如,偵測電路472可偵測音訊來源裝置470是否接收到官方或其他單位,透過電信系統或其他無線傳輸機制傳來的地震預警訊息、海嘯預警訊息等警報信號。 For example, the detection circuit 472 can detect whether the audio source device 470 receives warning signals such as earthquake warning messages and tsunami warning messages from the official or other units through telecommunications systems or other wireless transmission mechanisms.
又例如,偵測電路472可接收外界環境的聲響,並將接收到的聲響與一或多個預定的聲響模型(例如,空襲警報、海嘯警報、或是火災警報的聲響模型)進行比對,以判斷音訊來源裝置470的周邊環境是否發生空襲警報、海嘯警報、或是火災警報等特定的環境聲響。 For another example, the detection circuit 472 may receive sounds from the external environment and compare the received sounds with one or more predetermined sound models (for example, sound models of air raid sirens, tsunami sirens, or fire alarms), To determine whether specific environmental sounds such as air raid sirens, tsunami sirens, or fire alarms occur in the surrounding environment of the audio source device 470 .
又例如,偵測電路472可接收外界環境的聲響,並對接收到的聲響內容進行語音內容解析與辨識,以判斷音訊來源裝置470的周邊環境是否發生各種緊急廣播、或是里長語音廣播等特定的環境聲響。 For another example, the detection circuit 472 can receive sounds from the external environment, and analyze and identify the voice content of the received sounds to determine whether various emergency broadcasts or long voice broadcasts are occurring in the surrounding environment of the audio source device 470 . Specific ambient sounds.
在本實施例中,音訊來源裝置470可於偵測電路472偵測到前述的警報信號或是特定環境聲響時,產生一相應的偵測信號DS,並傳送偵測信號DS給音訊廣播裝置150。音訊廣播裝置150可於接收到音訊來源裝置470傳來的偵測信號DS時,產生一相應的標的控制指令,並傳送給第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140,以指示第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140將音量大小降到預定臨界值以下,以避免使用者錯過外界傳來的警報信號或特定環境聲響。如此一來,便可避免使用者身陷危險情況而不自知,或是錯過外界傳來的重要消息而延誤反應時機。 In this embodiment, the audio source device 470 can generate a corresponding detection signal DS when the detection circuit 472 detects the aforementioned alarm signal or specific environmental sound, and transmit the detection signal DS to the audio broadcasting device 150 . The audio broadcasting device 150 can generate a corresponding target control command when receiving the detection signal DS from the audio source device 470, and transmit it to the first Bluetooth member device 110, the second Bluetooth member device 120, and the third Bluetooth member. device 130, and the fourth Bluetooth member device 140 to instruct the first Bluetooth member device 110, the second Bluetooth member device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140 to reduce the volume below a predetermined threshold. , to prevent users from missing alarm signals or specific environmental sounds from the outside world. In this way, users can avoid being in dangerous situations without knowing it, or missing important information from the outside world and delaying the response time.
實作上,前述的音訊來源裝置470可以用能夠接收聲音並轉換成相應的音訊信號AS、可根據偵測電路472的偵測結果產生偵測信號DS、且支援合適的信號傳輸方式的各種合適電路來實現,例如,一筆記型電腦、一平板電腦、一行動通信裝置(例如,手機)、一穿戴式裝置、一視訊會議系統、或是各種類型的無線麥克風。 In practice, the aforementioned audio source device 470 may be any suitable device that can receive sounds and convert them into corresponding audio signals AS, generate detection signals DS according to the detection results of the detection circuit 472, and support suitable signal transmission methods. The circuit is implemented by, for example, a laptop computer, a tablet computer, a mobile communication device (eg, a mobile phone), a wearable device, a video conferencing system, or various types of wireless microphones.
在圖4的實施例中,音訊廣播裝置150可在接收到音訊來源裝置470 產生的偵測信號DS時,進行圖3中的流程302與流程304,以傳送標的控制指令給藍牙音訊廣播系統400中的多個藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140)。 In the embodiment of FIG. 4 , the audio broadcast device 150 may receive the audio source device 470 When the detection signal DS is generated, processes 302 and 304 in FIG. 3 are performed to transmit target control instructions to multiple Bluetooth member devices in the Bluetooth audio broadcast system 400 (for example, the aforementioned first Bluetooth member device 110, the The second Bluetooth member device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140).
前述有關圖1中的其他電路與裝置的實施方式及連接方式的描述,亦適用於圖4的藍牙音訊廣播系統400中。前述圖2與圖3中關於預定資料項目及標的資料項目的產生及傳輸方式的描述,亦適用於圖4的藍牙音訊廣播系統400中。為簡潔起見,在此不重複敘述。 The aforementioned descriptions of the implementation and connection methods of other circuits and devices in FIG. 1 are also applicable to the Bluetooth audio broadcast system 400 of FIG. 4 . The aforementioned descriptions of the generation and transmission methods of the predetermined data items and target data items in FIGS. 2 and 3 are also applicable to the Bluetooth audio broadcast system 400 of FIG. 4 . For the sake of brevity, the description will not be repeated here.
由前述圖4的說明可知,在藍牙音訊廣播系統400中的多成員藍牙裝置開始播放音訊廣播裝置150傳來的預定音訊資料之前,第一藍牙成員裝置110及第二藍牙成員裝置120就會先依據音訊廣播裝置150傳來的預定音量指示,分別將第一音訊播放電路113及第二音訊播放電路123的音量大小,調整成接近或等於前述的預定音量大小。 As can be seen from the description of FIG. 4 , before the multi-member Bluetooth device in the Bluetooth audio broadcast system 400 starts playing the predetermined audio data from the audio broadcast device 150 , the first Bluetooth member device 110 and the second Bluetooth member device 120 will first According to the predetermined volume instruction from the audio broadcast device 150, the volume of the first audio playback circuit 113 and the second audio playback circuit 123 is adjusted to be close to or equal to the aforementioned predetermined volume.
因此,當第一藍牙成員裝置110開始利用第一音訊播放電路113播放音訊廣播裝置150傳來的預定音訊資料時,第一音訊播放電路113發出的音量大小會接近或等於前述的預定音量大小。同樣地,當第二藍牙成員裝置120開始利用第二音訊播放電路123播放音訊廣播裝置150傳來的預定音訊資料時,第二音訊播放電路123發出的音量大小也會接近或等於前述的預定音量大小。 Therefore, when the first Bluetooth member device 110 starts to use the first audio playing circuit 113 to play the predetermined audio data from the audio broadcasting device 150, the volume emitted by the first audio playing circuit 113 will be close to or equal to the aforementioned predetermined volume. Similarly, when the second Bluetooth member device 120 starts to use the second audio playback circuit 123 to play the predetermined audio data from the audio broadcast device 150, the volume emitted by the second audio playback circuit 123 will also be close to or equal to the aforementioned predetermined volume. size.
如此一來,第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時所發出的音量大小,就能讓使用者感到舒適,而不會造成使用者感到不適或不悅。 In this way, the volume emitted when the first audio playback circuit 113 and the second audio playback circuit 123 start to play the predetermined audio data synchronously can make the user feel comfortable without causing discomfort or displeasure to the user.
此外,由於第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時的音量大小,已被預先設置成接近或等於前述的預定音量大小,所以就算音訊廣播裝置150是在使用者沒有心理預期的情況下開始進行音訊廣播,也能避免使用者因為突如其來的音訊廣播的音量過大而受到驚嚇的問題發生。 In addition, since the volume when the first audio playing circuit 113 and the second audio playing circuit 123 start to play the predetermined audio data synchronously has been preset to be close to or equal to the aforementioned predetermined volume, even if the audio broadcasting device 150 is in use It can also prevent users from being frightened by sudden audio broadcasts when the volume of the audio broadcast is too loud.
同樣地,藍牙音訊廣播系統400中的其他藍牙成員裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140),在開始播放音訊廣播裝置150傳來的預定音訊資料之前,就會先依據音訊廣播裝置150傳來的預定音量指示,分別將相關的音訊播放電路(圖中未繪示)的音量大小,調整成接近或等於前述的預定音量大小。因此,藍牙音訊廣播系統400中的其他藍牙成員裝置開始同步播放預定音訊資料時所發出的音量大小,也能讓使用者感到舒適,而不會造成使用者感到不適或不悅。 Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting system 400 (for example, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140), before starting to play the predetermined audio data transmitted from the audio broadcasting device 150, According to the predetermined volume instruction from the audio broadcasting device 150, the volume of the relevant audio playback circuit (not shown in the figure) is adjusted to be close to or equal to the aforementioned predetermined volume. Therefore, the volume emitted by other Bluetooth member devices in the Bluetooth audio broadcast system 400 when they start to play predetermined audio data synchronously can also make the user feel comfortable without causing discomfort or displeasure to the user.
另外,在藍牙音訊廣播系統400中的多成員藍牙裝置播放音訊廣播裝置150所廣播的音訊資料的過程中,音訊來源裝置470還可在偵測電路472偵測到前述的警報信號或是特定環境聲響時,利用偵測信號DS指示音訊廣播裝置150廣播一標的控制指令給個別藍牙成員裝置,以同步將個別藍牙成員裝置的音量大小降到預定臨界值以下。換言之,前述的藍牙音訊廣播系統400可於音訊來源裝置470接收到警報信號(例如,地震預警訊息、海嘯預警訊息等)時、或是音訊來源裝置470的周邊環境發生特定的環境聲響(例如,空襲警報、海嘯警報、火災警報、各種緊急廣播、或是里長語音廣播等)時,同步將藍牙音訊廣播系統400中的不同藍牙成員裝置的音量大小降到預定臨界值以下,以避免使用者因錯過外界傳來的警報信號或特定聲響,而身陷危險情況,或是延誤反應時機。 In addition, during the process of the multi-member Bluetooth devices in the Bluetooth audio broadcast system 400 playing the audio data broadcast by the audio broadcast device 150, the audio source device 470 can also detect the aforementioned alarm signal or specific environment in the detection circuit 472. When the sound is heard, the detection signal DS is used to instruct the audio broadcasting device 150 to broadcast a target control command to individual Bluetooth member devices to synchronously reduce the volume of individual Bluetooth member devices below a predetermined threshold. In other words, the aforementioned Bluetooth audio broadcast system 400 can generate specific environmental sounds (for example, when the audio source device 470 receives an alarm signal (for example, earthquake warning message, tsunami warning message, etc.) or the surrounding environment of the audio source device 470 ). (air raid alarm, tsunami alarm, fire alarm, various emergency broadcasts, or local voice broadcasts, etc.), the volume of different Bluetooth member devices in the Bluetooth audio broadcast system 400 is synchronously reduced below a predetermined critical value to prevent users from Missing warning signals or specific sounds from the outside world may lead to dangerous situations, or delays in responding.
再者,藍牙音訊廣播系統400是採用BLE音訊技術來進行音訊廣播,而且音訊廣播裝置150可採用低複雜度通信編解碼器(LC3)對預定音訊資料進行編碼。因此,相較於傳統的音訊廣播方式而言,藍牙音訊廣播系統400所採用的前述音訊廣播方法,不僅可降低多成員藍牙裝置的耗電量,進而延長多成員藍牙裝置的使用時間,還能有效提升音訊廣播的整體音訊品質。 Furthermore, the Bluetooth audio broadcasting system 400 uses BLE audio technology for audio broadcasting, and the audio broadcasting device 150 can use a low-complexity communication codec (LC3) to encode predetermined audio data. Therefore, compared with the traditional audio broadcasting method, the aforementioned audio broadcasting method adopted by the Bluetooth audio broadcasting system 400 can not only reduce the power consumption of the multi-member Bluetooth device, thereby extending the usage time of the multi-member Bluetooth device, but also Effectively improve the overall audio quality of audio broadcasts.
請參考圖5,其所繪示為本發明一第三實施例的藍牙音訊廣播系統 500簡化後的功能方塊圖。類似於圖1中的藍牙音訊廣播系統100,圖5中的藍牙音訊廣播系統500同樣包含了音訊廣播裝置150、多個藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140)、以及一音訊來源裝置570。另外,圖5中的藍牙音訊廣播系統500還包含了一主控裝置560。 Please refer to Figure 5, which illustrates a Bluetooth audio broadcast system according to a third embodiment of the present invention. 500 simplified functional block diagram. Similar to the Bluetooth audio broadcast system 100 in Figure 1, the Bluetooth audio broadcast system 500 in Figure 5 also includes an audio broadcast device 150 and a plurality of Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110, the second Bluetooth member device device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140), and an audio source device 570. In addition, the Bluetooth audio broadcast system 500 in Figure 5 also includes a main control device 560.
在藍牙音訊廣播系統500中,主控裝置560設置成可偵測外界傳來的警報信號或是特定環境聲響,以產生並傳送一偵測信號DS給音訊廣播裝置150。 In the Bluetooth audio broadcasting system 500, the main control device 560 is configured to detect alarm signals or specific environmental sounds from the outside world, so as to generate and transmit a detection signal DS to the audio broadcasting device 150.
如圖5所示,主控裝置560包含一通信電路561、一偵測電路563、以及一處理電路565。通信電路561設置成可利用各種有線或無線傳輸方式,與音訊廣播裝置150及音訊來源裝置570進行各種資料與指令通信。偵測電路563設置成可偵測外界傳來的警報信號(例如,地震預警訊息、海嘯預警訊息)、或是特定環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。處理電路565耦接於通信電路561及偵測電路563,並設置成可透過通信電路561控制音訊來源裝置570、或是接收音訊來源裝置570傳來的指令。處理電路565還設置成可於偵測電路563偵測到前述的警報信號或是特定環境聲響時,產生一偵測信號DS,並可利用通信電路561將偵測信號DS傳送給音訊廣播裝置150。 As shown in FIG. 5 , the main control device 560 includes a communication circuit 561 , a detection circuit 563 , and a processing circuit 565 . The communication circuit 561 is configured to communicate various data and instructions with the audio broadcast device 150 and the audio source device 570 using various wired or wireless transmission methods. The detection circuit 563 is configured to detect warning signals from the outside (for example, earthquake warning messages, tsunami warning messages), or specific environmental sounds (for example, air raid sirens, fire alarms, emergency broadcasts, or mileage voice broadcasts). wait). The processing circuit 565 is coupled to the communication circuit 561 and the detection circuit 563, and is configured to control the audio source device 570 through the communication circuit 561, or to receive instructions from the audio source device 570. The processing circuit 565 is also configured to generate a detection signal DS when the detection circuit 563 detects the aforementioned alarm signal or specific environmental sound, and can use the communication circuit 561 to transmit the detection signal DS to the audio broadcast device 150 .
實作上,通信電路561可用各種有線傳輸電路、無線傳輸電路、或是整合前述兩種通信機制的混合電路來實現。偵測電路563可利用各種合適的聲音接收及辨識電路(例如,一麥克風與一聲音辨識電路的搭配)來實現。處理電路565可利用具有適當運算能力及指令處理能力的單一處理器模組、多個處理器模組的組合、單一電腦系統、多個電腦系統的組合、單一伺服器、或是多個伺服器的組合來實現。 In practice, the communication circuit 561 can be implemented by various wired transmission circuits, wireless transmission circuits, or hybrid circuits that integrate the aforementioned two communication mechanisms. The detection circuit 563 can be implemented using various suitable sound receiving and identifying circuits (for example, a combination of a microphone and a sound identifying circuit). The processing circuit 565 may utilize a single processor module, a combination of multiple processor modules, a single computer system, a combination of multiple computer systems, a single server, or multiple servers with appropriate computing power and instruction processing capabilities. combination to achieve.
在實際應用中,前述主控裝置560中的不同功能方塊可分別用不同的電路來實現,也可整合在一行動通信裝置(例如,手機)、一穿戴式裝置、一平板電腦、一筆記型電腦、一桌上型電腦、一車載通信系統、一衛星通信裝置、一智慧音箱、或是一視訊會議系統中。 In practical applications, the different functional blocks in the main control device 560 can be implemented using different circuits, or can be integrated into a mobile communication device (for example, a mobile phone), a wearable device, a tablet computer, or a notebook. A computer, a desktop computer, a vehicle communication system, a satellite communication device, a smart speaker, or a video conferencing system.
與圖4的實施例類似,圖5中的音訊來源裝置570同樣可接收使用者發出的聲音以產生相應的音訊信號AS,並可利用各種有線或無線傳輸方式將音訊信號AS傳送給音訊廣播裝置150。圖5中的音訊廣播裝置150同樣可將音訊來源裝置570傳來的音訊信號AS,轉換成要廣播的預定音訊資料。換言之,圖5中的音訊廣播裝置150所廣播的預定音訊資料的內容,也是源自於音訊來源裝置570。 Similar to the embodiment of FIG. 4 , the audio source device 570 in FIG. 5 can also receive the sound emitted by the user to generate the corresponding audio signal AS, and can transmit the audio signal AS to the audio broadcasting device using various wired or wireless transmission methods. 150. The audio broadcast device 150 in FIG. 5 can also convert the audio signal AS transmitted from the audio source device 570 into predetermined audio data to be broadcast. In other words, the content of the predetermined audio data broadcast by the audio broadcast device 150 in FIG. 5 also originates from the audio source device 570 .
然而,與前述圖4中的藍牙音訊廣播系統400的不同之處在於,在圖5的實施例中,偵測信號DS是由主控裝置560產生並傳送給音訊廣播裝置150,而不是由音訊來源裝置570所產生。 However, the difference from the Bluetooth audio broadcasting system 400 in FIG. 4 is that in the embodiment of FIG. 5 , the detection signal DS is generated by the main control device 560 and transmitted to the audio broadcasting device 150 instead of Generated by source device 570.
在運作時,圖5實施例中的藍牙音訊廣播系統500同樣可採用前述圖2的方式來進行音訊廣播。另外,在音訊廣播裝置150進行音訊廣播的過程中(亦即,在音訊廣播裝置150重複進行圖2的流程222及流程224的過程中),偵測電路563會偵測主控裝置560是否接收到預定的警報信號(例如,官方或其他單位透過電信系統或各種無線傳輸機制發送的地震預警訊息、海嘯預警訊息等)、或是特定的環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。 During operation, the Bluetooth audio broadcasting system 500 in the embodiment of FIG. 5 can also perform audio broadcasting in the manner described in FIG. 2 . In addition, during the audio broadcasting process of the audio broadcasting device 150 (that is, during the process of the audio broadcasting device 150 repeating the process 222 and the process 224 of FIG. 2 ), the detection circuit 563 will detect whether the main control device 560 receives to predetermined warning signals (for example, earthquake warning messages, tsunami warning messages, etc. sent by the official or other units through telecommunications systems or various wireless transmission mechanisms), or specific environmental sounds (for example, air raid sirens, fire alarms, emergency broadcasts, Or long voice broadcast, etc.).
例如,偵測電路563可偵測主控裝置560是否接收到官方或其他單位,透過電信系統或其他無線傳輸機制傳來的地震預警訊息、海嘯預警訊息等警報信號。 For example, the detection circuit 563 can detect whether the main control device 560 receives warning signals such as earthquake warning messages and tsunami warning messages from the official or other units through telecommunications systems or other wireless transmission mechanisms.
又例如,偵測電路563可接收外界環境的聲響,並將接收到的聲響與一或多個預定的聲響模型(例如,空襲警報、海嘯警報、或是火災警報的聲響模型)進行比對,以判斷主控裝置560的周邊環境是 否發生空襲警報、海嘯警報、或是火災警報等特定的環境聲響。 For another example, the detection circuit 563 can receive sounds from the external environment and compare the received sounds with one or more predetermined sound models (for example, sound models of air raid sirens, tsunami sirens, or fire alarms). To determine whether the surrounding environment of the main control device 560 is Whether specific environmental sounds such as air raid sirens, tsunami sirens, or fire alarms occur.
又例如,偵測電路563可接收外界環境的聲響,並對接收到的聲響內容進行語音內容解析與辨識,以判斷主控裝置560的周邊環境是否發生各種緊急廣播、或是里長語音廣播等特定的環境聲響。 For another example, the detection circuit 563 can receive sounds from the external environment, and perform voice content analysis and identification on the received sound content to determine whether various emergency broadcasts or mileage voice broadcasts are occurring in the surrounding environment of the main control device 560 . Specific ambient sounds.
在本實施例中,主控裝置560的處理電路565可於偵測電路563偵測到前述的警報信號或是特定環境聲響時,產生一相應的偵測信號DS,並利用通信電路561傳送偵測信號DS給音訊廣播裝置150。音訊廣播裝置150可於接收到主控裝置560傳來的偵測信號DS時,產生一相應的標的控制指令,並傳送給第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140,以指示第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140將音量大小降到預定臨界值以下,以避免使用者錯過外界傳來的警報信號或特定環境聲響。如此一來,便可避免使用者身陷危險情況而不自知,或是錯過外界傳來的重要消息而延誤反應時機。 In this embodiment, the processing circuit 565 of the main control device 560 can generate a corresponding detection signal DS when the detection circuit 563 detects the aforementioned alarm signal or specific environmental sound, and use the communication circuit 561 to transmit the detection signal DS. The test signal DS is sent to the audio broadcasting device 150. The audio broadcasting device 150 can generate a corresponding target control command when receiving the detection signal DS from the main control device 560, and transmit it to the first Bluetooth member device 110, the second Bluetooth member device 120, and the third Bluetooth member. device 130, and the fourth Bluetooth member device 140 to instruct the first Bluetooth member device 110, the second Bluetooth member device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140 to reduce the volume below a predetermined threshold. , to prevent users from missing alarm signals or specific environmental sounds from the outside world. In this way, users can avoid being in dangerous situations without knowing it, or missing important information from the outside world and delaying the response time.
在圖5的實施例中,音訊廣播裝置150可在接收到主控裝置560產生的偵測信號DS時,進行圖3中的流程302與流程304,以傳送標的控制指令給藍牙音訊廣播系統500中的多個藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140)。 In the embodiment of FIG. 5 , the audio broadcasting device 150 can perform the process 302 and the process 304 in FIG. 3 when receiving the detection signal DS generated by the main control device 560 to transmit the target control command to the Bluetooth audio broadcasting system 500 A plurality of Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110, second Bluetooth member device 120, third Bluetooth member device 130, and fourth Bluetooth member device 140).
前述有關圖1或圖4中的相關電路與裝置的實施方式及連接方式的描述,亦適用於圖5的藍牙音訊廣播系統500中。前述圖2與圖3中關於預定資料項目及標的資料項目的產生及傳輸方式的描述,亦適用於圖5的藍牙音訊廣播系統500中。為簡潔起見,在此不重複敘述。 The foregoing description of the implementation and connection methods of the relevant circuits and devices in FIG. 1 or FIG. 4 is also applicable to the Bluetooth audio broadcast system 500 of FIG. 5 . The aforementioned descriptions of the generation and transmission methods of the predetermined data items and target data items in FIGS. 2 and 3 are also applicable to the Bluetooth audio broadcast system 500 of FIG. 5 . For the sake of brevity, the description will not be repeated here.
請參考圖6,其所繪示為本發明一第四實施例的藍牙音訊廣播系統600簡化後的功能方塊圖。類似於圖5中的藍牙音訊廣播系統500,圖6中的藍牙音訊廣播系統600同樣包含了音訊廣播裝置150、多個 藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140)、以及主控裝置560,但圖6中的藍牙音訊廣播系統600省略了前述的音訊來源裝置570。 Please refer to FIG. 6 , which shows a simplified functional block diagram of a Bluetooth audio broadcast system 600 according to a fourth embodiment of the present invention. Similar to the Bluetooth audio broadcast system 500 in Figure 5, the Bluetooth audio broadcast system 600 in Figure 6 also includes an audio broadcast device 150, a plurality of Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110, second Bluetooth member device 120, third Bluetooth member device 130, and fourth Bluetooth member device 140), and the main control device 560, but the Bluetooth in FIG. 6 The audio broadcast system 600 omits the aforementioned audio source device 570 .
在圖6的實施例中,音訊廣播裝置150要廣播的預定音訊資料,可以是預先儲存在音訊廣播裝置150中的音訊資料,或者也可以是音訊廣播裝置150依據周圍環境的聲音(例如,使用者的聲音)所產生的音訊資料。 In the embodiment of FIG. 6 , the predetermined audio data to be broadcast by the audio broadcasting device 150 may be audio data pre-stored in the audio broadcasting device 150 , or may be the sound of the audio broadcasting device 150 based on the surrounding environment (for example, using audio data generated by the speaker's voice).
與前述圖5的實施例相同,圖6實施例中的偵測信號DS,同樣是由主控裝置560所產生並傳送給音訊廣播裝置150。 Similar to the aforementioned embodiment of FIG. 5 , the detection signal DS in the embodiment of FIG. 6 is also generated by the main control device 560 and transmitted to the audio broadcasting device 150 .
在圖6的實施例中,音訊廣播裝置150可在接收到主控裝置560產生的偵測信號DS時,進行圖3中的流程302與流程304,以傳送標的控制指令給藍牙音訊廣播系統600中的多個藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140)。 In the embodiment of FIG. 6 , the audio broadcasting device 150 can perform the process 302 and the process 304 in FIG. 3 to transmit the target control command to the Bluetooth audio broadcasting system 600 when receiving the detection signal DS generated by the main control device 560 . A plurality of Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110, second Bluetooth member device 120, third Bluetooth member device 130, and fourth Bluetooth member device 140).
前述有關圖1、圖4、或圖5中的相關電路與裝置的實施方式及連接方式的描述,亦適用於圖6的藍牙音訊廣播系統600中。前述圖2與圖3中關於預定資料項目及標的資料項目的產生及傳輸方式的描述,亦適用於圖6的藍牙音訊廣播系統600中。為簡潔起見,在此不重複敘述。 The foregoing description of the implementation and connection methods of the relevant circuits and devices in FIG. 1 , FIG. 4 , or FIG. 5 is also applicable to the Bluetooth audio broadcast system 600 of FIG. 6 . The aforementioned descriptions of the generation and transmission methods of the predetermined data items and target data items in FIGS. 2 and 3 are also applicable to the Bluetooth audio broadcast system 600 of FIG. 6 . For the sake of brevity, the description will not be repeated here.
由前述圖5至圖6的說明可知,在藍牙音訊廣播系統500、600中的多成員藍牙裝置開始播放音訊廣播裝置150傳來的預定音訊資料之前,第一藍牙成員裝置110及第二藍牙成員裝置120就會先依據音訊廣播裝置150傳來的預定音量指示,分別將第一音訊播放電路113及第二音訊播放電路123的音量大小,調整成接近或等於前述的預定音量大小。 It can be known from the description of FIGS. 5 to 6 that before the multi-member Bluetooth devices in the Bluetooth audio broadcasting systems 500 and 600 start playing the predetermined audio data from the audio broadcasting device 150, the first Bluetooth member device 110 and the second Bluetooth member The device 120 will first adjust the volume of the first audio playback circuit 113 and the second audio playback circuit 123 to be close to or equal to the aforementioned predetermined volume according to the predetermined volume instruction from the audio broadcasting device 150 .
因此,當第一藍牙成員裝置110開始利用第一音訊播放電路113播放 音訊廣播裝置150傳來的預定音訊資料時,第一音訊播放電路113發出的音量大小會接近或等於前述的預定音量大小。同樣地,當第二藍牙成員裝置120開始利用第二音訊播放電路123播放音訊廣播裝置150傳來的預定音訊資料時,第二音訊播放電路123發出的音量大小也會接近或等於前述的預定音量大小。 Therefore, when the first Bluetooth member device 110 starts to use the first audio playing circuit 113 to play When the predetermined audio data is transmitted from the audio broadcasting device 150, the volume emitted by the first audio playing circuit 113 will be close to or equal to the aforementioned predetermined volume. Similarly, when the second Bluetooth member device 120 starts to use the second audio playback circuit 123 to play the predetermined audio data from the audio broadcast device 150, the volume emitted by the second audio playback circuit 123 will also be close to or equal to the aforementioned predetermined volume. size.
如此一來,第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時所發出的音量大小,就能讓使用者感到舒適,而不會造成使用者感到不適或不悅。 In this way, the volume emitted when the first audio playback circuit 113 and the second audio playback circuit 123 start to play the predetermined audio data synchronously can make the user feel comfortable without causing discomfort or displeasure to the user.
此外,由於第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時的音量大小,已被預先設置成接近或等於前述的預定音量大小,所以就算音訊廣播裝置150是在使用者沒有心理預期的情況下開始進行音訊廣播,也能避免使用者因為突如其來的音訊廣播的音量過大而受到驚嚇的問題發生。 In addition, since the volume when the first audio playing circuit 113 and the second audio playing circuit 123 start to play the predetermined audio data synchronously has been preset to be close to or equal to the aforementioned predetermined volume, even if the audio broadcasting device 150 is in use It can also prevent users from being frightened by sudden audio broadcasts when the volume of the audio broadcast is too loud.
同樣地,藍牙音訊廣播系統500、600中的其他藍牙成員裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140),在開始播放音訊廣播裝置150傳來的預定音訊資料之前,就會先依據音訊廣播裝置150傳來的預定音量指示,分別將相關的音訊播放電路(圖中未繪示)的音量大小,調整成接近或等於前述的預定音量大小。因此,藍牙音訊廣播系統500、600中的其他藍牙成員裝置開始同步播放預定音訊資料時所發出的音量大小,也能讓使用者感到舒適,而不會造成使用者感到不適或不悅。 Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting systems 500 and 600 (for example, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140), before starting to play the predetermined audio data transmitted from the audio broadcasting device 150 , according to the predetermined volume instruction from the audio broadcast device 150, the volume of the relevant audio playback circuit (not shown in the figure) is adjusted to be close to or equal to the aforementioned predetermined volume. Therefore, the volume emitted by other Bluetooth member devices in the Bluetooth audio broadcast system 500 and 600 when they start to play predetermined audio data synchronously can also make the user feel comfortable without causing discomfort or displeasure to the user.
另外,在藍牙音訊廣播系統500、600中的多成員藍牙裝置播放音訊廣播裝置150所廣播的音訊資料的過程中,主控裝置560還可在偵測電路563偵測到前述的警報信號或是特定環境聲響時,利用偵測信號DS指示音訊廣播裝置150廣播一標的控制指令給個別藍牙成員裝置,以同步將個別藍牙成員裝置的音量大小降到預定臨界值以下。換言之,前述的藍牙音訊廣播系統500、600可於主控裝置560接收 到警報信號(例如,地震預警訊息、海嘯預警訊息等)時、或是主控裝置560的周邊環境發生特定的環境聲響(例如,空襲警報、海嘯警報、火災警報、各種緊急廣播、或是里長語音廣播等)時,同步將藍牙音訊廣播系統500、600中的不同藍牙成員裝置的音量大小降到預定臨界值以下,以避免使用者因錯過外界傳來的警報信號或特定聲響,而身陷危險情況,或是延誤反應時機。 In addition, during the process of the multi-member Bluetooth devices in the Bluetooth audio broadcasting systems 500 and 600 playing the audio data broadcast by the audio broadcasting device 150, the main control device 560 can also detect the aforementioned alarm signal or the above in the detection circuit 563. When there is a specific environmental sound, the detection signal DS is used to instruct the audio broadcast device 150 to broadcast a target control command to individual Bluetooth member devices to synchronously reduce the volume of individual Bluetooth member devices below a predetermined threshold. In other words, the aforementioned Bluetooth audio broadcast systems 500 and 600 can receive the When an alarm signal (for example, an earthquake warning message, a tsunami warning message, etc.) is received, or a specific environmental sound occurs in the surrounding environment of the main control device 560 (for example, an air raid siren, a tsunami siren, a fire alarm, various emergency broadcasts, or inside (long voice broadcast, etc.), the volume of different Bluetooth member devices in the Bluetooth audio broadcast system 500, 600 is synchronously reduced below a predetermined threshold value to prevent the user from missing alarm signals or specific sounds coming from the outside and getting injured. into a dangerous situation, or delay the response time.
再者,藍牙音訊廣播系統500、600是採用BLE音訊技術來進行音訊廣播,而且音訊廣播裝置150可採用低複雜度通信編解碼器(LC3)對預定音訊資料進行編碼。因此,相較於傳統的音訊廣播方式而言,藍牙音訊廣播系統500、600所採用的前述音訊廣播方法,不僅可降低多成員藍牙裝置的耗電量,進而延長多成員藍牙裝置的使用時間,還能有效提升音訊廣播的整體音訊品質。 Furthermore, the Bluetooth audio broadcasting systems 500 and 600 use BLE audio technology for audio broadcasting, and the audio broadcasting device 150 can use a low-complexity communication codec (LC3) to encode predetermined audio data. Therefore, compared with the traditional audio broadcasting method, the aforementioned audio broadcasting method adopted by the Bluetooth audio broadcasting systems 500 and 600 can not only reduce the power consumption of the multi-member Bluetooth device, but also extend the usage time of the multi-member Bluetooth device. It can also effectively improve the overall audio quality of audio broadcasts.
請參考圖7,其所繪示為本發明一第五實施例的藍牙音訊廣播系統700簡化後的功能方塊圖。類似於圖6中的藍牙音訊廣播系統600,圖7中的藍牙音訊廣播系統700同樣包含了音訊廣播裝置150、多個藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140)、以及主控裝置560。 Please refer to FIG. 7 , which shows a simplified functional block diagram of a Bluetooth audio broadcast system 700 according to a fifth embodiment of the present invention. Similar to the Bluetooth audio broadcast system 600 in Figure 6, the Bluetooth audio broadcast system 700 in Figure 7 also includes an audio broadcast device 150 and a plurality of Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110, the second Bluetooth member device device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140), and the master device 560.
不同於前述圖6的實施例,藍牙音訊廣播系統700中的部分或全部藍牙成員裝置,還包含有一偵測電路及一無線通信電路。例如,在圖7的實施例中,除了前述的第一藍牙通信電路111、第一音訊處理電路112、第一音訊播放電路113、以及第一控制電路114之外,第一藍牙成員裝置110還包含有一第一無線通信電路715以及一第一偵測電路716。相仿地,除了前述的第二藍牙通信電路121、第二音訊處理電路122、第二音訊播放電路123、以及第二控制電路124之外,第二藍牙成員裝置120還包含有一第二無線通信電路725以及一第二偵測電路726。 Different from the aforementioned embodiment of FIG. 6 , some or all of the Bluetooth member devices in the Bluetooth audio broadcast system 700 also include a detection circuit and a wireless communication circuit. For example, in the embodiment of FIG. 7 , in addition to the aforementioned first Bluetooth communication circuit 111 , first audio processing circuit 112 , first audio playback circuit 113 , and first control circuit 114 , the first Bluetooth member device 110 also It includes a first wireless communication circuit 715 and a first detection circuit 716. Similarly, in addition to the aforementioned second Bluetooth communication circuit 121, second audio processing circuit 122, second audio playback circuit 123, and second control circuit 124, the second Bluetooth member device 120 also includes a second wireless communication circuit. 725 and a second detection circuit 726.
在第一藍牙成員裝置110中,第一無線通信電路715耦接於第一控制電路114,並設置成可在第一控制電路114的控制之下,利用除了藍牙通信方式以外的各種無線存取技術(Radio Access Technology,RAT),與主控裝置560進行各種資料和/或指令通信。第一偵測電路716耦接於第一控制電路114,並設置成可偵測外界傳來的警報信號(例如,地震預警訊息、海嘯預警訊息)、或是特定環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。第一控制電路114可在第一偵測電路716偵測到前述的警報信號或是特定環境聲響時,產生一偵測信號DS,並利用第一無線通信電路715傳送偵測信號DS給主控裝置560。 In the first Bluetooth member device 110, the first wireless communication circuit 715 is coupled to the first control circuit 114, and is configured to utilize various wireless access methods other than Bluetooth communication methods under the control of the first control circuit 114. Technology (Radio Access Technology, RAT), communicates various data and/or instructions with the main control device 560. The first detection circuit 716 is coupled to the first control circuit 114 and is configured to detect warning signals from the outside (for example, earthquake warning messages, tsunami warning messages), or specific environmental sounds (for example, air raid sirens, Fire alarm, emergency broadcast, or resident voice broadcast, etc.). The first control circuit 114 can generate a detection signal DS when the first detection circuit 716 detects the aforementioned alarm signal or specific environmental sound, and uses the first wireless communication circuit 715 to transmit the detection signal DS to the main control unit. Device 560.
前述的無線存取技術,可以是各種紅外線信號傳輸技術、近場通信(near field communication,NFC)技術、第二代(2nd Generation,2G)行動通信技術、各種第三代(3rd Generation,3G)行動通信技術、各種第四代(4th Generation,4G)行動通信技術、各種第五代(5th Generation,5G)行動通信技術、各種IEEE 802.11系列規範的無線網路通信技術、各種物聯網(Internet-of-Thing,IoT)通信技術、各種窄帶物聯網(Narrow Band Internet of Thing,NB-IoT)通信技術、各種車際(Vehicle-to-Vehicle)通信技術、各種車聯網(Vehicle-to-Everything,V2X)通信技術、各種衛星通信技術、或是由其他標準制定組織所發布的各種無線通信技術等。 The aforementioned wireless access technologies can be various infrared signal transmission technologies, near field communication (NFC) technologies, second generation (2nd Generation, 2G) mobile communication technologies, various third generation (3rd Generation, 3G) technologies. Mobile communication technologies, various fourth generation (4G) mobile communication technologies, various fifth generation (5th Generation, 5G) mobile communication technologies, various IEEE 802.11 series standard wireless network communication technologies, various Internet of Things (Internet- of-Thing, IoT) communication technology, various Narrow Band Internet of Thing (NB-IoT) communication technology, various Vehicle-to-Vehicle communication technologies, various Vehicle-to-Everything, V2X) communication technology, various satellite communication technologies, or various wireless communication technologies released by other standard-setting organizations.
在第二藍牙成員裝置120中,第二無線通信電路725耦接於第二控制電路124,並設置成可在第二控制電路124的控制之下,利用除了藍牙通信方式以外的前述各種無線存取技術(RAT),與主控裝置560進行各種資料和/或指令通信。第二偵測電路726耦接於第二控制電路124,並設置成可偵測外界傳來的警報信號(例如,地震預警訊息、海嘯預警訊息)、或是特定環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。第二控制電路124可 在第二偵測電路726偵測到前述的警報信號或是特定環境聲響時,產生一偵測信號DS,並利用第二無線通信電路725傳送偵測信號DS給主控裝置560。 In the second Bluetooth member device 120, the second wireless communication circuit 725 is coupled to the second control circuit 124, and is configured to utilize the aforementioned various wireless memories other than the Bluetooth communication method under the control of the second control circuit 124. Access technology (RAT) to communicate various data and/or instructions with the main control device 560. The second detection circuit 726 is coupled to the second control circuit 124 and is configured to detect warning signals from the outside (for example, earthquake warning messages, tsunami warning messages), or specific environmental sounds (for example, air raid sirens, Fire alarm, emergency broadcast, or resident voice broadcast, etc.). The second control circuit 124 may When the second detection circuit 726 detects the aforementioned alarm signal or specific environmental sound, it generates a detection signal DS and uses the second wireless communication circuit 725 to transmit the detection signal DS to the main control device 560 .
實作上,前述的第一無線通信電路715及第二無線通信電路725,皆可利用支援前述的一或多種無線存取技術的各種合適電路或晶片來實現,例如,紅外線信號傳輸電路、近場通信電路、網路卡(Network Interface Card,NIC)、無線傳輸(Wi-Fi)電路、行動通信電路、衛星通信電路、物聯網通信電路等等。第一無線通信電路715可與第一藍牙成員裝置110中的其他功能方塊(例如,第一藍牙通信電路111)整合在一起。同樣地,第二無線通信電路725可與第二藍牙成員裝置120中的其他功能方塊(例如,第二藍牙通信電路121)整合在一起。 In practice, the aforementioned first wireless communication circuit 715 and the second wireless communication circuit 725 can be implemented using various suitable circuits or chips that support one or more of the aforementioned wireless access technologies, such as infrared signal transmission circuits, near-field wireless communication circuits, etc. Field communication circuits, network interface cards (NICs), wireless transmission (Wi-Fi) circuits, mobile communication circuits, satellite communication circuits, Internet of Things communication circuits, etc. The first wireless communication circuit 715 may be integrated with other functional blocks in the first Bluetooth member device 110 (eg, the first Bluetooth communication circuit 111 ). Likewise, the second wireless communication circuit 725 may be integrated with other functional blocks in the second Bluetooth member device 120 (eg, the second Bluetooth communication circuit 121 ).
前述的第一偵測電路716及第二偵測電路726,皆可用各種合適的聲音接收及辨識電路(例如,一麥克風與一聲音辨識電路的搭配)來實現。第一偵測電路716可設置於第一藍牙成員裝置110的外部,也可與第一藍牙成員裝置110中的其他功能方塊整合在一起。相仿地,第二偵測電路726可設置於第二藍牙成員裝置120的外部,也可與第二藍牙成員裝置120中的其他功能方塊整合在一起。 The aforementioned first detection circuit 716 and second detection circuit 726 can be implemented with various suitable sound receiving and identification circuits (for example, a combination of a microphone and a sound identification circuit). The first detection circuit 716 may be disposed outside the first Bluetooth member device 110 , or may be integrated with other functional blocks in the first Bluetooth member device 110 . Similarly, the second detection circuit 726 can be disposed outside the second Bluetooth member device 120 , or can be integrated with other functional blocks in the second Bluetooth member device 120 .
藍牙音訊廣播系統700中的其他藍牙成員裝置,可比照前述的第一藍牙成員裝置110或第二藍牙成員裝置120的架構,設置相應的偵測電路及無線通信電路。 Other Bluetooth member devices in the Bluetooth audio broadcast system 700 can be configured with corresponding detection circuits and wireless communication circuits according to the architecture of the first Bluetooth member device 110 or the second Bluetooth member device 120 described above.
在圖7的實施例中,主控裝置560包含前述的通信電路561、處理電路565、以及一輸入電路763。輸入電路763耦接於處理電路565,並設置成允許主控裝置560的使用者對主控裝置560進行各種操作,例如,輸入指令、設定音量調整方向、或是設定音量調整量等等。實作上,輸入電路763可用鍵盤、滑鼠、遙控器、觸控螢幕、觸控板、按鈕、電阻式觸控電路、電容式觸控電路、陀螺儀、聲控輸入裝置、 手勢感應裝置、採用其他各種指令產生技術的電路、或前述裝置的組合來實現。 In the embodiment of FIG. 7 , the main control device 560 includes the aforementioned communication circuit 561 , a processing circuit 565 , and an input circuit 763 . The input circuit 763 is coupled to the processing circuit 565 and is configured to allow the user of the main control device 560 to perform various operations on the main control device 560, such as inputting instructions, setting the volume adjustment direction, or setting the volume adjustment amount, etc. In practice, the input circuit 763 can be a keyboard, a mouse, a remote control, a touch screen, a trackpad, a button, a resistive touch circuit, a capacitive touch circuit, a gyroscope, a voice-activated input device, It is implemented by a gesture sensing device, a circuit using various other command generation technologies, or a combination of the aforementioned devices.
另外,藍牙音訊廣播系統700中的多個藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140),可共同組成一個多成員藍牙裝置,例如,一組多聲道藍牙喇叭。 In addition, multiple Bluetooth member devices in the Bluetooth audio broadcast system 700 (for example, the aforementioned first Bluetooth member device 110, second Bluetooth member device 120, third Bluetooth member device 130, and fourth Bluetooth member device 140) may Together they form a multi-member Bluetooth device, for example, a set of multi-channel Bluetooth speakers.
在運作時,藍牙音訊廣播系統700同樣可採用前述圖2的方式來對前述的多成員藍牙裝置進行音訊廣播。 During operation, the Bluetooth audio broadcast system 700 can also use the aforementioned method in FIG. 2 to broadcast audio to the aforementioned multi-member Bluetooth devices.
另外,在音訊廣播裝置150進行音訊廣播的過程中(亦即,在音訊廣播裝置150重複進行圖2的流程222及流程224的過程中),第一偵測電路716可偵測第一藍牙成員裝置110是否接收到預定的警報信號(例如,官方或其他單位透過電信系統或各種無線傳輸機制發送的地震預警訊息、海嘯預警訊息等)、或是特定的環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。 In addition, during the audio broadcasting process of the audio broadcasting device 150 (that is, during the process of the audio broadcasting device 150 repeating the process 222 and the process 224 of FIG. 2 ), the first detection circuit 716 can detect the first Bluetooth member Whether the device 110 receives a predetermined alarm signal (for example, earthquake warning messages, tsunami warning messages, etc. sent by the official or other units through telecommunications systems or various wireless transmission mechanisms), or specific environmental sounds (for example, air raid sirens, fire alarms) , emergency broadcast, or resident voice broadcast, etc.).
例如,第一偵測電路716可偵測第一藍牙成員裝置110是否接收到官方或其他單位,透過電信系統或其他無線傳輸機制傳來的地震預警訊息、海嘯預警訊息等警報信號。 For example, the first detection circuit 716 can detect whether the first Bluetooth member device 110 receives warning signals such as earthquake warning messages and tsunami warning messages from the official or other units through telecommunication systems or other wireless transmission mechanisms.
又例如,第一偵測電路716可接收外界環境的聲響,並將接收到的聲響與一或多個預定的聲響模型(例如,空襲警報、海嘯警報、或是火災警報的聲響模型)進行比對,以判斷第一藍牙成員裝置110的周邊環境是否發生空襲警報、海嘯警報、或是火災警報等特定的環境聲響。 For another example, the first detection circuit 716 may receive sounds from the external environment and compare the received sounds with one or more predetermined sound models (for example, sound models of air raid sirens, tsunami sirens, or fire alarms). Yes, to determine whether specific environmental sounds such as air raid alarms, tsunami alarms, or fire alarms occur in the surrounding environment of the first Bluetooth member device 110 .
又例如,第一偵測電路716可接收外界環境的聲響,並對接收到的聲響內容進行語音內容解析與辨識,以判斷第一藍牙成員裝置110的周邊環境是否發生各種緊急廣播、或是里長語音廣播等特定的環境聲響。 For another example, the first detection circuit 716 can receive sounds from the external environment, and analyze and identify the voice content of the received sounds to determine whether various emergency broadcasts or intruders are occurring in the surrounding environment of the first Bluetooth member device 110 . Specific environmental sounds such as long voice broadcasts.
當第一偵測電路716偵測到前述的警報信號或是特定環境聲響時, 第一藍牙成員裝置110的第一控制電路114可產生一相應的偵測信號DS,並利用第一無線通信電路715傳送偵測信號DS給主控裝置560。 When the first detection circuit 716 detects the aforementioned alarm signal or specific environmental sound, The first control circuit 114 of the first Bluetooth member device 110 can generate a corresponding detection signal DS, and use the first wireless communication circuit 715 to transmit the detection signal DS to the main control device 560 .
同樣地,第二偵測電路726可偵測第二藍牙成員裝置120是否接收到預定的警報信號(例如,官方或其他單位透過電信系統或各種無線傳輸機制發送的地震預警訊息、海嘯預警訊息等)、或是特定的環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。 Similarly, the second detection circuit 726 can detect whether the second Bluetooth member device 120 receives a predetermined warning signal (for example, an earthquake warning message, a tsunami warning message, etc. sent by the official or other units through a telecommunications system or various wireless transmission mechanisms. ), or specific environmental sounds (for example, air raid sirens, fire alarms, emergency broadcasts, or resident voice broadcasts, etc.).
例如,第二偵測電路726可偵測第二藍牙成員裝置120是否接收到官方或其他單位,透過電信系統或其他無線傳輸機制傳來的地震預警訊息、海嘯預警訊息等警報信號。 For example, the second detection circuit 726 can detect whether the second Bluetooth member device 120 receives warning signals such as earthquake warning messages and tsunami warning messages from the official or other units through telecommunications systems or other wireless transmission mechanisms.
又例如,第二偵測電路726可接收外界環境的聲響,並將接收到的聲響與一或多個預定的聲響模型(例如,空襲警報、海嘯警報、或是火災警報的聲響模型)進行比對,以判斷第二藍牙成員裝置120的周邊環境是否發生空襲警報、海嘯警報、或是火災警報等特定的環境聲響。 For another example, the second detection circuit 726 may receive sounds from the external environment and compare the received sounds with one or more predetermined sound models (for example, sound models of air raid sirens, tsunami sirens, or fire alarms). Yes, to determine whether specific environmental sounds such as air raid alarms, tsunami alarms, or fire alarms occur in the surrounding environment of the second Bluetooth member device 120 .
又例如,第二偵測電路726可接收外界環境的聲響,並對接收到的聲響內容進行語音內容解析與辨識,以判斷第二藍牙成員裝置120的周邊環境是否發生各種緊急廣播、或是里長語音廣播等特定的環境聲響。 For another example, the second detection circuit 726 can receive sounds from the external environment, and perform voice content analysis and identification on the received sound content to determine whether various emergency broadcasts or intruders are occurring in the surrounding environment of the second Bluetooth member device 120 . Specific environmental sounds such as long voice broadcasts.
當第二偵測電路726偵測到前述的警報信號或是特定環境聲響時,第二藍牙成員裝置120的第二控制電路124可產生一相應的偵測信號DS,並利用第二無線通信電路725傳送偵測信號DS給主控裝置560。 When the second detection circuit 726 detects the aforementioned alarm signal or specific environmental sound, the second control circuit 124 of the second Bluetooth member device 120 can generate a corresponding detection signal DS and use the second wireless communication circuit to 725 transmits the detection signal DS to the main control device 560 .
在圖7的實施例中,當主控裝置560的通信電路561接收到第一藍牙成員裝置110或第二藍牙成員裝置120傳來的偵測信號DS時,處理電路565會產生一告警通知ALN,並利用通信電路561傳送告警通知ALN給音訊廣播裝置150。音訊廣播裝置150可於接收到主控裝置560傳來的告警通知ALN時,產生一相應的標的控制指令,並傳送 給第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140,以指示第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140將音量大小降到預定臨界值以下,以避免使用者錯過外界傳來的警報信號或特定環境聲響。如此一來,便可避免使用者身陷危險情況而不自知,或是錯過外界傳來的重要消息而延誤反應時機。 In the embodiment of FIG. 7 , when the communication circuit 561 of the master device 560 receives the detection signal DS from the first Bluetooth member device 110 or the second Bluetooth member device 120 , the processing circuit 565 generates an alarm notification ALN. , and uses the communication circuit 561 to transmit the alarm notification ALN to the audio broadcasting device 150 . When receiving the alarm notification ALN from the main control device 560, the audio broadcast device 150 can generate a corresponding target control command and transmit to the first Bluetooth member device 110 , the second Bluetooth member device 120 , the third Bluetooth member device 130 and the fourth Bluetooth member device 140 to indicate the first Bluetooth member device 110 , the second Bluetooth member device 120 and the third Bluetooth member device The device 130 and the fourth Bluetooth member device 140 reduce the volume below a predetermined threshold to prevent the user from missing alarm signals or specific environmental sounds coming from the outside. In this way, users can avoid being in dangerous situations without knowing it, or missing important information from the outside world and delaying the response time.
圖7中的音訊廣播裝置150可於接收到主控裝置560產生的告警通知ALN時,進行前述圖3中的流程302與流程304,以傳送標的控制指令給藍牙音訊廣播系統700中的多個藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140。 The audio broadcast device 150 in Figure 7 can perform the aforementioned process 302 and process 304 in Figure 3 when receiving the alarm notification ALN generated by the main control device 560, so as to transmit the target control command to multiple devices in the Bluetooth audio broadcast system 700. Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110, second Bluetooth member device 120, third Bluetooth member device 130, and fourth Bluetooth member device 140.
前述有關圖1、圖4、圖5、或圖6中的相關電路與裝置的實施方式及連接方式的描述,亦適用於圖7的藍牙音訊廣播系統700中。前述圖2與圖3中關於預定資料項目及標的資料項目的產生及傳輸方式的描述,亦適用於圖7的藍牙音訊廣播系統700中。為簡潔起見,在此不重複敘述。 The aforementioned descriptions of the implementation and connection methods of the relevant circuits and devices in FIG. 1 , FIG. 4 , FIG. 5 , or FIG. 6 are also applicable to the Bluetooth audio broadcast system 700 of FIG. 7 . The aforementioned descriptions of the generation and transmission methods of the predetermined data items and target data items in FIGS. 2 and 3 are also applicable to the Bluetooth audio broadcast system 700 of FIG. 7 . For the sake of brevity, the description will not be repeated here.
由前述說明可知,在藍牙音訊廣播系統700中,第一藍牙成員裝置110可利用第一無線通信電路715傳送偵測信號DS給主控裝置560,而第二藍牙成員裝置120則可利用第二無線通信電路725傳送偵測信號DS給主控裝置560。但這只是一示例性的實施例,並非侷限本發明之實際實施方式。實作上,第一藍牙成員裝置110或第二藍牙成員裝置120可改用其他方式傳送偵測信號DS給主控裝置560。 As can be seen from the foregoing description, in the Bluetooth audio broadcast system 700, the first Bluetooth member device 110 can use the first wireless communication circuit 715 to transmit the detection signal DS to the main control device 560, and the second Bluetooth member device 120 can use the second The wireless communication circuit 725 transmits the detection signal DS to the main control device 560 . However, this is only an exemplary embodiment and does not limit the actual implementation of the present invention. In practice, the first Bluetooth member device 110 or the second Bluetooth member device 120 can use other methods to transmit the detection signal DS to the main control device 560 .
例如,在另一實施例中,第一藍牙成員裝置110可利用第一藍牙通信電路111傳送偵測信號DS給主控裝置560,而第二藍牙成員裝置120則可利用第二藍牙通信電路121傳送偵測信號DS給主控裝置560。在此情況下,則可將前述的第一無線通信電路715和/或第二無線通信電路725省略。 For example, in another embodiment, the first Bluetooth member device 110 can use the first Bluetooth communication circuit 111 to transmit the detection signal DS to the main control device 560 , and the second Bluetooth member device 120 can use the second Bluetooth communication circuit 121 Send the detection signal DS to the main control device 560 . In this case, the aforementioned first wireless communication circuit 715 and/or the second wireless communication circuit 725 may be omitted.
另外,在某些實施例中,亦可將圖7的第二藍牙成員裝置120中的第二偵測電路726省略。 In addition, in some embodiments, the second detection circuit 726 in the second Bluetooth member device 120 of FIG. 7 can also be omitted.
請參考圖8,其所繪示為本發明一第六實施例的藍牙音訊廣播系統800簡化後的功能方塊圖。類似於圖7中的藍牙音訊廣播系統700,圖8中的藍牙音訊廣播系統800同樣包含了音訊廣播裝置150以及多個藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140),但圖8中的藍牙音訊廣播系統800省略了前述的主控裝置560。 Please refer to FIG. 8 , which shows a simplified functional block diagram of a Bluetooth audio broadcast system 800 according to a sixth embodiment of the present invention. Similar to the Bluetooth audio broadcast system 700 in FIG. 7 , the Bluetooth audio broadcast system 800 in FIG. 8 also includes an audio broadcast device 150 and multiple Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110 , the second Bluetooth member device device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140), but the Bluetooth audio broadcast system 800 in FIG. 8 omits the aforementioned main control device 560.
另外,與前述圖7的實施例略有不同,圖8的藍牙音訊廣播系統800中的部分或全部藍牙成員裝置,還包含有一偵測電路,但省略了前述的無線通信電路。例如,在圖8的實施例中,第一藍牙成員裝置110包含前述的第一藍牙通信電路111、第一音訊處理電路112、第一音訊播放電路113、第一控制電路114、以及第一偵測電路716,但省略了第一無線通信電路715。相仿地,第二藍牙成員裝置120包含前述的第二藍牙通信電路121、第二音訊處理電路122、第二音訊播放電路123、第二控制電路124、以及第二偵測電路726,但省略了第二無線通信電路725。 In addition, slightly different from the aforementioned embodiment of FIG. 7 , some or all of the Bluetooth member devices in the Bluetooth audio broadcast system 800 of FIG. 8 also include a detection circuit, but the aforementioned wireless communication circuit is omitted. For example, in the embodiment of FIG. 8, the first Bluetooth member device 110 includes the aforementioned first Bluetooth communication circuit 111, first audio processing circuit 112, first audio playback circuit 113, first control circuit 114, and first detection circuit. Test circuit 716, but the first wireless communication circuit 715 is omitted. Similarly, the second Bluetooth member device 120 includes the aforementioned second Bluetooth communication circuit 121, second audio processing circuit 122, second audio playback circuit 123, second control circuit 124, and second detection circuit 726, but omitted. Second wireless communication circuit 725.
圖8的藍牙音訊廣播系統800中的其他藍牙成員裝置,可比照前述的第一藍牙成員裝置110或第二藍牙成員裝置120的架構,設置相應的偵測電路。 Other Bluetooth member devices in the Bluetooth audio broadcast system 800 in FIG. 8 can be configured with corresponding detection circuits according to the architecture of the first Bluetooth member device 110 or the second Bluetooth member device 120 described above.
在圖8的實施例中,藍牙音訊廣播系統800中的多個藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140),可共同組成一個多成員藍牙裝置,例如,一組多聲道藍牙喇叭。 In the embodiment of FIG. 8 , multiple Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110 , second Bluetooth member device 120 , third Bluetooth member device 130 , and fourth Bluetooth member device) in the Bluetooth audio broadcast system 800 The member devices 140) can jointly form a multi-member Bluetooth device, for example, a set of multi-channel Bluetooth speakers.
在運作時,圖8中的藍牙音訊廣播系統800同樣可採用前述圖2的方式來對前述的多成員藍牙裝置進行音訊廣播。 During operation, the Bluetooth audio broadcast system 800 in FIG. 8 can also use the aforementioned method in FIG. 2 to broadcast audio to the aforementioned multi-member Bluetooth devices.
另外,在音訊廣播裝置150進行音訊廣播的過程中(亦即,在音訊 廣播裝置150重複進行圖2的流程222及流程224的過程中),第一偵測電路716可偵測第一藍牙成員裝置110是否接收到預定的警報信號(例如,官方或其他單位透過電信系統或各種無線傳輸機制發送的地震預警訊息、海嘯預警訊息等)、或是特定的環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。同樣地,第二偵測電路726可偵測第二藍牙成員裝置120是否接收到預定的警報信號(例如,官方或其他單位透過電信系統或各種無線傳輸機制發送的地震預警訊息、海嘯預警訊息等)、或是特定的環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。 In addition, during the audio broadcasting process by the audio broadcasting device 150 (that is, during the audio broadcasting process) When the broadcast device 150 repeats the process 222 and the process 224 of FIG. 2), the first detection circuit 716 can detect whether the first Bluetooth member device 110 receives a predetermined alarm signal (for example, the official or other unit through the telecommunications system Or earthquake warning messages, tsunami warning messages, etc. sent by various wireless transmission mechanisms), or specific environmental sounds (such as air raid sirens, fire alarms, emergency broadcasts, or village voice broadcasts, etc.). Similarly, the second detection circuit 726 can detect whether the second Bluetooth member device 120 receives a predetermined warning signal (for example, an earthquake warning message, a tsunami warning message, etc. sent by the official or other units through a telecommunications system or various wireless transmission mechanisms. ), or specific environmental sounds (for example, air raid sirens, fire alarms, emergency broadcasts, or resident voice broadcasts, etc.).
圖8實施例中的第一偵測電路716及第二偵測電路726的運作方式,分別與前述圖7中的第一偵測電路716及第二偵測電路726相同。 The operation modes of the first detection circuit 716 and the second detection circuit 726 in the embodiment of FIG. 8 are respectively the same as the aforementioned first detection circuit 716 and the second detection circuit 726 in FIG. 7 .
當第一偵測電路716偵測到前述的警報信號或是特定環境聲響時,第一藍牙成員裝置110的第一控制電路114可產生一相應的偵測信號DS,並利用第一藍牙通信電路111傳送偵測信號DS給音訊廣播裝置150。同樣地,當第二偵測電路726偵測到前述的警報信號或是特定環境聲響時,第二藍牙成員裝置120的第二控制電路124可產生一相應的偵測信號DS,並利用第二藍牙通信電路121傳送偵測信號DS給音訊廣播裝置150。 When the first detection circuit 716 detects the aforementioned alarm signal or specific environmental sound, the first control circuit 114 of the first Bluetooth member device 110 can generate a corresponding detection signal DS and use the first Bluetooth communication circuit to 111 transmits the detection signal DS to the audio broadcast device 150 . Similarly, when the second detection circuit 726 detects the aforementioned alarm signal or specific environmental sound, the second control circuit 124 of the second Bluetooth member device 120 can generate a corresponding detection signal DS, and use the second The Bluetooth communication circuit 121 transmits the detection signal DS to the audio broadcasting device 150 .
當圖8中的音訊廣播裝置150接收到第一藍牙成員裝置110或第二藍牙成員裝置120傳來的偵測信號DS時,音訊廣播裝置150可進行前述圖3中的流程302與流程304,以傳送標的控制指令給藍牙音訊廣播系統800中的多個藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140)。 When the audio broadcasting device 150 in Figure 8 receives the detection signal DS from the first Bluetooth member device 110 or the second Bluetooth member device 120, the audio broadcasting device 150 can perform the aforementioned process 302 and process 304 in Figure 3, To transmit the target control command to multiple Bluetooth member devices in the Bluetooth audio broadcast system 800 (for example, the aforementioned first Bluetooth member device 110, second Bluetooth member device 120, third Bluetooth member device 130, and fourth Bluetooth member device 140).
前述有關圖1、圖4、圖5、圖6、或圖7中的相關電路與裝置的實施方式及連接方式的描述,亦適用於圖8的藍牙音訊廣播系統800中。前述有關圖2與圖3中關於預定資料項目及標的資料項目的產生及傳 輸方式的描述,亦適用於圖8的藍牙音訊廣播系統800中。為簡潔起見,在此不重複敘述。 The foregoing description of the implementation and connection methods of the relevant circuits and devices in FIG. 1 , FIG. 4 , FIG. 5 , FIG. 6 , or FIG. 7 is also applicable to the Bluetooth audio broadcast system 800 of FIG. 8 . The aforementioned production and transmission of predetermined data items and target data items in Figures 2 and 3 The description of the transmission method is also applicable to the Bluetooth audio broadcast system 800 of FIG. 8 . For the sake of brevity, the description will not be repeated here.
在某些實施例中,亦可將圖8的第二藍牙成員裝置120中的第二偵測電路726省略。 In some embodiments, the second detection circuit 726 in the second Bluetooth member device 120 of FIG. 8 can also be omitted.
由前述圖7及圖8的說明可知,在藍牙音訊廣播系統700、800中的多成員藍牙裝置開始播放音訊廣播裝置150傳來的預定音訊資料之前,第一藍牙成員裝置110及第二藍牙成員裝置120就會先依據音訊廣播裝置150傳來的預定音量指示,分別將第一音訊播放電路113及第二音訊播放電路123的音量大小,調整成接近或等於前述的預定音量大小。 It can be known from the description of FIG. 7 and FIG. 8 that before the multi-member Bluetooth devices in the Bluetooth audio broadcasting systems 700 and 800 start playing the predetermined audio data from the audio broadcasting device 150, the first Bluetooth member device 110 and the second Bluetooth member The device 120 will first adjust the volume of the first audio playback circuit 113 and the second audio playback circuit 123 to be close to or equal to the aforementioned predetermined volume according to the predetermined volume instruction from the audio broadcasting device 150 .
因此,當第一藍牙成員裝置110開始利用第一音訊播放電路113播放音訊廣播裝置150傳來的預定音訊資料時,第一音訊播放電路113發出的音量大小會接近或等於前述的預定音量大小。同樣地,當第二藍牙成員裝置120開始利用第二音訊播放電路123播放音訊廣播裝置150傳來的預定音訊資料時,第二音訊播放電路123發出的音量大小也會接近或等於前述的預定音量大小。 Therefore, when the first Bluetooth member device 110 starts to use the first audio playing circuit 113 to play the predetermined audio data from the audio broadcasting device 150, the volume emitted by the first audio playing circuit 113 will be close to or equal to the aforementioned predetermined volume. Similarly, when the second Bluetooth member device 120 starts to use the second audio playback circuit 123 to play the predetermined audio data from the audio broadcast device 150, the volume emitted by the second audio playback circuit 123 will also be close to or equal to the aforementioned predetermined volume. size.
如此一來,第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時所發出的音量大小,就能讓使用者感到舒適,而不會造成使用者感到不適或不悅。 In this way, the volume emitted when the first audio playback circuit 113 and the second audio playback circuit 123 start to play the predetermined audio data synchronously can make the user feel comfortable without causing discomfort or displeasure to the user.
此外,由於第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時的音量大小,已被預先設置成接近或等於前述的預定音量大小,所以就算音訊廣播裝置150是在使用者沒有心理預期的情況下開始進行音訊廣播,也能避免使用者因為突如其來的音訊廣播的音量過大而受到驚嚇的問題發生。 In addition, since the volume when the first audio playing circuit 113 and the second audio playing circuit 123 start to play the predetermined audio data synchronously has been preset to be close to or equal to the aforementioned predetermined volume, even if the audio broadcasting device 150 is in use It can also prevent users from being frightened by sudden audio broadcasts when the volume of the audio broadcast is too loud.
同樣地,藍牙音訊廣播系統700、800中的其他藍牙成員裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140),在開始播放音訊廣播裝置150傳來的預定音訊資料之前,就會先依據音訊廣 播裝置150傳來的預定音量指示,分別將相關的音訊播放電路(圖中未繪示)的音量大小,調整成接近或等於前述的預定音量大小。因此,藍牙音訊廣播系統700、800中的其他藍牙成員裝置開始同步播放預定音訊資料時所發出的音量大小,也能讓使用者感到舒適,而不會造成使用者感到不適或不悅。 Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting systems 700 and 800 (for example, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140), before starting to play the predetermined audio data transmitted from the audio broadcasting device 150 , it will first be broadcast based on the information The predetermined volume instructions sent from the playback device 150 respectively adjust the volume of the relevant audio playback circuit (not shown in the figure) to be close to or equal to the aforementioned predetermined volume. Therefore, the volume emitted by other Bluetooth member devices in the Bluetooth audio broadcast system 700 and 800 when they start to play predetermined audio data synchronously can also make the user feel comfortable without causing discomfort or displeasure to the user.
另外,在藍牙音訊廣播系統700、800中的多成員藍牙裝置播放音訊廣播裝置150所廣播的音訊資料的過程中,音訊廣播裝置150還可在第一藍牙成員裝置110或第二藍牙成員裝置120偵測到前述的警報信號或是特定環境聲響時,依據主控裝置560傳來的告警通知ALN、或是第一藍牙成員裝置110和/或第二藍牙成員裝置120傳來的偵測信號DS,廣播一標的控制指令給個別藍牙成員裝置,以同步將個別藍牙成員裝置的音量大小降到預定臨界值以下。換言之,前述的藍牙音訊廣播系統700、800可於第一藍牙成員裝置110或第二藍牙成員裝置120接收到警報信號(例如,地震預警訊息、海嘯預警訊息等)時、或是第一藍牙成員裝置110或第二藍牙成員裝置120的周邊環境發生特定的環境聲響(例如,空襲警報、海嘯警報、火災警報、各種緊急廣播、或是里長語音廣播等)時,同步將藍牙音訊廣播系統700、800中的不同藍牙成員裝置的音量大小降到預定臨界值以下,以避免使用者因錯過外界傳來的警報信號或特定聲響,而身陷危險情況,或是延誤反應時機。 In addition, during the process of the multi-member Bluetooth devices in the Bluetooth audio broadcast systems 700 and 800 playing the audio data broadcast by the audio broadcast device 150, the audio broadcast device 150 can also play the first Bluetooth member device 110 or the second Bluetooth member device 120. When the aforementioned alarm signal or specific environmental sound is detected, the alarm notification ALN sent from the main control device 560 or the detection signal DS sent from the first Bluetooth member device 110 and/or the second Bluetooth member device 120 , broadcasting a target control command to individual Bluetooth member devices to synchronously reduce the volume of individual Bluetooth member devices below a predetermined threshold. In other words, the aforementioned Bluetooth audio broadcast systems 700 and 800 can be used when the first Bluetooth member device 110 or the second Bluetooth member device 120 receives an alarm signal (such as an earthquake warning message, a tsunami warning message, etc.), or when the first Bluetooth member device 110 or the second Bluetooth member device 120 When specific environmental sounds occur in the surrounding environment of the device 110 or the second Bluetooth member device 120 (for example, air raid sirens, tsunami sirens, fire alarms, various emergency broadcasts, or local voice broadcasts, etc.), the Bluetooth audio broadcast system 700 is synchronized , the volume of different Bluetooth member devices in 800 is reduced below the predetermined threshold value to prevent users from missing alarm signals or specific sounds from the outside world, putting them in dangerous situations, or delaying response opportunities.
再者,藍牙音訊廣播系統700、800是採用BLE音訊技術來進行音訊廣播,而且音訊廣播裝置150可採用低複雜度通信編解碼器(LC3)對預定音訊資料進行編碼。因此,相較於傳統的音訊廣播方式而言,藍牙音訊廣播系統700、800所採用的前述音訊廣播方法,不僅可降低多成員藍牙裝置的耗電量,進而延長多成員藍牙裝置的使用時間,還能有效提升音訊廣播的整體音訊品質。 Furthermore, the Bluetooth audio broadcasting systems 700 and 800 use BLE audio technology for audio broadcasting, and the audio broadcasting device 150 can use a low-complexity communication codec (LC3) to encode predetermined audio data. Therefore, compared with the traditional audio broadcasting method, the aforementioned audio broadcasting method adopted by the Bluetooth audio broadcasting systems 700 and 800 can not only reduce the power consumption of the multi-member Bluetooth device, but also extend the usage time of the multi-member Bluetooth device. It can also effectively improve the overall audio quality of audio broadcasts.
請參考圖9,其所繪示為本發明一第七實施例的藍牙音訊廣播系統 900簡化後的功能方塊圖。 Please refer to Figure 9, which illustrates a Bluetooth audio broadcast system according to a seventh embodiment of the present invention. 900 simplified functional block diagram.
在圖9的實施例中,藍牙音訊廣播系統900包含了音訊廣播裝置150、多個藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140)、以及一或多個主控裝置。為了方便說明起見,在圖9的實施例中僅繪示兩個示例性的主控裝置,分別是一主控裝置960以及一主控裝置970。 In the embodiment of FIG. 9 , the Bluetooth audio broadcast system 900 includes an audio broadcast device 150 and a plurality of Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110 , second Bluetooth member device 120 , and third Bluetooth member device 130 , and the fourth Bluetooth member device 140), and one or more master devices. For convenience of explanation, only two exemplary main control devices are shown in the embodiment of FIG. 9 , namely a main control device 960 and a main control device 970 .
如圖9所示,主控裝置960包含一通信電路961、一偵測電路963、以及一處理電路965。通信電路961設置成可利用各種有線或無線傳輸方式,與藍牙音訊廣播系統900中的多個藍牙成員裝置進行各種資料與指令通信。偵測電路963設置成可偵測外界傳來的警報信號(例如,地震預警訊息、海嘯預警訊息)、或是特定環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。處理電路965耦接於通信電路961及偵測電路963,並設置成可於偵測電路963偵測到前述的警報信號或是特定環境聲響時,產生一標的控制指令,並可利用通信電路961將標的控制指令傳送給藍牙音訊廣播系統900中的多個藍牙成員裝置。 As shown in FIG. 9 , the main control device 960 includes a communication circuit 961 , a detection circuit 963 , and a processing circuit 965 . The communication circuit 961 is configured to communicate various data and instructions with multiple Bluetooth member devices in the Bluetooth audio broadcast system 900 using various wired or wireless transmission methods. The detection circuit 963 is configured to detect warning signals from the outside (for example, earthquake warning messages, tsunami warning messages), or specific environmental sounds (for example, air raid sirens, fire alarms, emergency broadcasts, or mileage voice broadcasts). wait). The processing circuit 965 is coupled to the communication circuit 961 and the detection circuit 963, and is configured to generate a target control command when the detection circuit 963 detects the aforementioned alarm signal or specific environmental sound, and can use the communication circuit 961 The target control command is sent to multiple Bluetooth member devices in the Bluetooth audio broadcast system 900 .
實作上,通信電路961可用各種有線傳輸電路、無線傳輸電路、或是整合前述兩種通信機制的混合電路來實現。偵測電路963可利用各種合適的聲音接收及辨識電路(例如,一麥克風與一聲音辨識電路的搭配)來實現。處理電路965可利用具有適當運算能力及指令處理能力的單一處理器模組、多個處理器模組的組合、單一電腦系統、多個電腦系統的組合、單一伺服器、或是多個伺服器的組合來實現。 In practice, the communication circuit 961 can be implemented by various wired transmission circuits, wireless transmission circuits, or hybrid circuits that integrate the aforementioned two communication mechanisms. The detection circuit 963 can be implemented using various suitable sound receiving and identifying circuits (for example, a combination of a microphone and a sound identifying circuit). The processing circuit 965 may utilize a single processor module, a combination of multiple processor modules, a single computer system, a combination of multiple computer systems, a single server, or multiple servers with appropriate computing power and instruction processing capabilities. combination to achieve.
另外,在圖9的實施例中,第一藍牙成員裝置110包含有前述的第一藍牙通信電路111、第一音訊處理電路112、第一音訊播放電路113、第一控制電路114、以及第一無線通信電路715。相仿地,第二藍牙 成員裝置120包含有前述的第二藍牙通信電路121、第二音訊處理電路122、第二音訊播放電路123、第二控制電路124、以及第二無線通信電路725。 In addition, in the embodiment of FIG. 9 , the first Bluetooth member device 110 includes the aforementioned first Bluetooth communication circuit 111 , first audio processing circuit 112 , first audio playback circuit 113 , first control circuit 114 , and first Wireless communication circuit 715. Similarly, the second Bluetooth The member device 120 includes the aforementioned second Bluetooth communication circuit 121, second audio processing circuit 122, second audio playback circuit 123, second control circuit 124, and second wireless communication circuit 725.
與前述圖7的實施例類似,圖9中的第一無線通信電路715耦接於第一控制電路114,並設置成可在第一控制電路114的控制之下,利用除了藍牙通信方式以外的各種無線存取技術(RAT),與主控裝置960的通信電路961進行各種資料和/或指令通信。同樣地,第二無線通信電路725耦接於第二控制電路124,並設置成可在第二控制電路124的控制之下,利用除了藍牙通信方式以外的各種無線存取技術,與主控裝置960的通信電路961進行各種資料和/或指令通信。 Similar to the aforementioned embodiment of FIG. 7 , the first wireless communication circuit 715 in FIG. 9 is coupled to the first control circuit 114 and is configured to use communication methods other than Bluetooth under the control of the first control circuit 114 . Various radio access technologies (RAT) communicate various data and/or instructions with the communication circuit 961 of the main control device 960 . Similarly, the second wireless communication circuit 725 is coupled to the second control circuit 124, and is configured to use various wireless access technologies except Bluetooth communication to communicate with the main control device under the control of the second control circuit 124. The communication circuit 961 of 960 communicates various data and/or instructions.
以下將搭配圖10來進一步說明藍牙音訊廣播系統900的運作方式。圖10為本發明一第二實施例的利用BLE音訊技術進行音訊廣播的方法簡化後的流程圖。 The operation of the Bluetooth audio broadcast system 900 will be further explained below with reference to FIG. 10 . FIG. 10 is a simplified flow chart of a method for audio broadcasting using BLE audio technology according to a second embodiment of the present invention.
當使用者想要利用藍牙音訊廣播系統900中的第一藍牙成員裝置110與第二藍牙成員裝置120接收音訊廣播時,第一藍牙成員裝置110及第二藍牙成員裝置120可進行圖10中的流程1002。在本實施例中,第一藍牙成員裝置110在流程1002中的運作方式,與在前述圖2中的流程202實質相同,而第二藍牙成員裝置120在流程1002中的運作方式,則與在圖2中的流程204實質相同。 When the user wants to use the first Bluetooth member device 110 and the second Bluetooth member device 120 in the Bluetooth audio broadcast system 900 to receive audio broadcasts, the first Bluetooth member device 110 and the second Bluetooth member device 120 can perform the steps in FIG. 10 Process 1002. In this embodiment, the operation method of the first Bluetooth member device 110 in the process 1002 is substantially the same as the aforementioned process 202 in FIG. The process 204 in Figure 2 is essentially the same.
如圖10所示,當音訊廣播裝置150需要進行音訊廣播時,可進行圖10中的流程206至流程210。音訊廣播裝置150在圖10中的流程206至流程210的運作方式,都跟前述圖2中的相應流程相同。亦即,音訊廣播裝置150可將與一預定音量大小相對應的一預定音量指示,插入一或多個預定資料項目中。另外,音訊廣播裝置150可在預定傳送模式下,將前述的一或多個預定資料項目傳送出去,以使得藍牙音訊廣播系統900中的多個藍牙成員裝置(例如,第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍 牙成員裝置140),能夠接收到前述的一或多個預定資料項目。 As shown in FIG. 10 , when the audio broadcasting device 150 needs to broadcast audio, the process 206 to the process 210 in FIG. 10 can be performed. The operations of the audio broadcast device 150 in processes 206 to 210 in FIG. 10 are the same as the corresponding processes in FIG. 2 . That is, the audio broadcast device 150 may insert a predetermined volume indication corresponding to a predetermined volume level into one or more predetermined data items. In addition, the audio broadcasting device 150 can transmit the aforementioned one or more predetermined data items in a predetermined transmission mode, so that multiple Bluetooth member devices in the Bluetooth audio broadcasting system 900 (for example, the first Bluetooth member device 110, The second Bluetooth member device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 130 The tooth member device 140) can receive one or more of the aforementioned predetermined data items.
接著,第一藍牙成員裝置110及第二藍牙成員裝置120可進行圖10中的流程1012及流程1014。在本實施例中,第一藍牙成員裝置110在流程1012及流程1014中的運作方式,分別與前述圖2中的流程212及流程214實質相同,而第二藍牙成員裝置120在流程1012及流程1014中的運作方式,則分別與前述圖2中的流程212及流程218實質相同。 Then, the first Bluetooth member device 110 and the second Bluetooth member device 120 can perform the process 1012 and the process 1014 in FIG. 10 . In this embodiment, the operation modes of the first Bluetooth member device 110 in the process 1012 and the process 1014 are substantially the same as the aforementioned process 212 and the process 214 in FIG. 2 respectively, while the second Bluetooth member device 120 operates in the process 1012 and the process 1014. The operation method in 1014 is essentially the same as the process 212 and the process 218 in Figure 2 mentioned above.
接著,第一藍牙成員裝置110及第二藍牙成員裝置120可進行圖10中的流程1016,以依據音訊廣播裝置150傳來的預定音量指示,設置相應音訊播放電路的增益值。在本實施例中,第一藍牙成員裝置110在流程1016中的運作方式,與前述圖2中的流程216實質相同,而第二藍牙成員裝置120在流程1016中的運作方式,則與前述圖2中的流程220實質相同。 Then, the first Bluetooth member device 110 and the second Bluetooth member device 120 can perform the process 1016 in FIG. 10 to set the gain value of the corresponding audio playback circuit according to the predetermined volume indication sent from the audio broadcast device 150 . In this embodiment, the operation method of the first Bluetooth member device 110 in the process 1016 is substantially the same as the aforementioned process 216 in FIG. 2 , and the operation method of the second Bluetooth member device 120 in the process 1016 is essentially the same as the aforementioned process 1016 . The process 220 in 2 is essentially the same.
例如,第一控制電路114可在流程1016中依據預定音量指示,控制第一音訊處理電路112設置第一音訊播放電路113的增益值,以將第一音訊播放電路113的音量大小,預先調整成接近或等於前述的預定音量大小。同樣地,第二控制電路124可在流程1016中依據預定音量指示,控制第二音訊處理電路122設置第二音訊播放電路123的增益值,以將第二音訊播放電路123的音量大小,預先調整成接近或等於前述的預定音量大小。 For example, the first control circuit 114 can control the first audio processing circuit 112 to set the gain value of the first audio playback circuit 113 according to the predetermined volume instruction in process 1016, so as to pre-adjust the volume of the first audio playback circuit 113 to Close to or equal to the aforementioned predetermined volume level. Similarly, the second control circuit 124 can control the second audio processing circuit 122 to set the gain value of the second audio playback circuit 123 according to the predetermined volume instruction in process 1016, so as to pre-adjust the volume of the second audio playback circuit 123. to be close to or equal to the aforementioned predetermined volume.
換言之,在本實施例中,第一藍牙成員裝置110及第二藍牙成員裝置120在播放音訊廣播裝置150傳來的音訊資料之前,就會先依據音訊廣播裝置150傳來的預定音量指示,分別將第一音訊播放電路113及第二音訊播放電路123的音量大小,調整成接近或等於前述的預定音量大小。 In other words, in this embodiment, before playing the audio data transmitted from the audio broadcasting device 150, the first Bluetooth member device 110 and the second Bluetooth member device 120 will respectively The volume of the first audio playing circuit 113 and the second audio playing circuit 123 is adjusted to be close to or equal to the aforementioned predetermined volume.
如圖10所示,音訊廣播裝置150在進行流程210之後,還會進行流程222及流程224。另一方面,第一藍牙成員裝置110及第二藍牙成員裝置120則可進行圖10中的流程1026、流程1028、及流程1030。在 本實施例中,第一藍牙成員裝置110在流程1026、流程1028、及流程1030中的運作方式,分別與前述圖2中的流程226、流程228、及流程230實質相同,而第二藍牙成員裝置120在流程1026、流程1028、及流程1030中的運作方式,則分別與前述圖2中的流程226、流程232、及流程234實質相同。 As shown in FIG. 10 , after performing the process 210 , the audio broadcasting device 150 will also perform the process 222 and the process 224 . On the other hand, the first Bluetooth member device 110 and the second Bluetooth member device 120 can perform the process 1026, the process 1028, and the process 1030 in FIG. 10 . exist In this embodiment, the operation modes of the first Bluetooth member device 110 in the process 1026, the process 1028, and the process 1030 are substantially the same as the aforementioned processes 226, 228, and 230 in FIG. 2 respectively, while the second Bluetooth member device 110 The operation modes of the device 120 in the process 1026, the process 1028, and the process 1030 are essentially the same as the aforementioned processes 226, 232, and 234 in FIG. 2 respectively.
音訊廣播裝置150可重複進行圖10中的流程222及流程224以廣播後續的預定音訊資料。另一方面,第一藍牙成員裝置110及第二藍牙成員裝置120則可重複進行流程1026、流程1028、及流程1030以接收及播放後續的預定音訊資料。 The audio broadcasting device 150 may repeatedly perform the process 222 and the process 224 in FIG. 10 to broadcast subsequent scheduled audio data. On the other hand, the first Bluetooth member device 110 and the second Bluetooth member device 120 can repeat the process 1026, the process 1028, and the process 1030 to receive and play subsequent scheduled audio data.
由前述說明可知,圖9中的音訊廣播裝置150同樣可採用藍牙核心規格5.2版本或較新的版本所規範的BLE音訊技術來廣播預定音訊資料。在運作時,音訊廣播裝置150可透過BIS邏輯傳輸通道,將包含預定音訊資料的低功耗藍牙音訊封包,向藍牙音訊廣播系統900中的多個藍牙成員裝置(例如,第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140)進行廣播。 As can be seen from the foregoing description, the audio broadcast device 150 in FIG. 9 can also use the BLE audio technology specified by the Bluetooth core specification version 5.2 or a newer version to broadcast predetermined audio data. During operation, the audio broadcasting device 150 may send low-power Bluetooth audio packets including predetermined audio data to multiple Bluetooth member devices (for example, the first Bluetooth member device 110 ) in the Bluetooth audio broadcasting system 900 through the BIS logical transmission channel. , the second Bluetooth member device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140) broadcast.
在圖9的音訊廣播裝置150進行音訊廣播的過程中(亦即,在音訊廣播裝置150重複進行圖10的流程222及流程224的過程中),偵測電路963會偵測主控裝置960是否接收到預定的警報信號(例如,官方或其他單位透過電信系統或各種無線傳輸機制發送的地震預警訊息、海嘯預警訊息等)、或是特定的環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。 During the audio broadcasting process of the audio broadcasting device 150 of FIG. 9 (that is, during the process of the audio broadcasting device 150 repeating the process 222 and the process 224 of FIG. 10 ), the detection circuit 963 will detect whether the main control device 960 Receiving predetermined warning signals (for example, earthquake warning messages, tsunami warning messages, etc. sent by the official or other units through telecommunications systems or various wireless transmission mechanisms), or specific environmental sounds (for example, air raid sirens, fire alarms, emergency broadcasts) , or voice broadcast, etc.).
例如,偵測電路963可偵測主控裝置960是否接收到官方或其他單位,透過電信系統或其他無線傳輸機制傳來的地震預警訊息、海嘯預警訊息等警報信號。 For example, the detection circuit 963 can detect whether the main control device 960 receives warning signals such as earthquake warning messages and tsunami warning messages from the official or other units through telecommunications systems or other wireless transmission mechanisms.
又例如,偵測電路963可接收外界環境的聲響,並將接收到的聲響與一或多個預定的聲響模型(例如,空襲警報、海嘯警報、或是火 災警報的聲響模型)進行比對,以判斷主控裝置960的周邊環境是否發生空襲警報、海嘯警報、或是火災警報等特定的環境聲響。 For another example, the detection circuit 963 can receive sounds from the external environment and compare the received sounds with one or more predetermined sound models (for example, air raid sirens, tsunami sirens, or fire alarms). (disaster alarm sound model) to determine whether specific environmental sounds such as air raid alarms, tsunami alarms, or fire alarms occur in the surrounding environment of the main control device 960.
又例如,偵測電路963可接收外界環境的聲響,並對接收到的聲響內容進行語音內容解析與辨識,以判斷主控裝置960的周邊環境是否發生各種緊急廣播、或是里長語音廣播等特定的環境聲響。 For another example, the detection circuit 963 can receive sounds from the external environment, and perform voice content analysis and identification on the received sound content to determine whether various emergency broadcasts or mileage voice broadcasts are occurring in the surrounding environment of the main control device 960 . Specific ambient sounds.
在圖9的實施例中,主控裝置960的處理電路965可於偵測電路963偵測到前述的警報信號或是特定環境聲響時,進行圖10中的流程1032。 In the embodiment of FIG. 9 , the processing circuit 965 of the main control device 960 can perform the process 1032 in FIG. 10 when the detection circuit 963 detects the aforementioned alarm signal or specific environmental sound.
在流程1032中,處理電路965可產生一相應的標的控制指令,並可利用通信電路961採用除了藍牙通信方式以外的各種無線存取技術(RAT),將標的控制指令傳送給第一藍牙成員裝置110的第一無線通信電路715、以及第二藍牙成員裝置120的第二無線通信電路725,以指示第一藍牙成員裝置110及第二藍牙成員裝置120同步將音量大小降到預定臨界值以下。 In process 1032, the processing circuit 965 can generate a corresponding target control command, and can use the communication circuit 961 to use various radio access technologies (RAT) other than Bluetooth communication methods to transmit the target control command to the first Bluetooth member device. 110 and the second wireless communication circuit 725 of the second Bluetooth member device 120 to instruct the first Bluetooth member device 110 and the second Bluetooth member device 120 to simultaneously reduce the volume below a predetermined threshold value.
在流程1034中,第一無線通信電路715以及第二無線通信電路725可接收主控裝置960傳來的標的控制指令。 In process 1034, the first wireless communication circuit 715 and the second wireless communication circuit 725 may receive the target control instruction from the main control device 960.
接著,第一藍牙成員裝置110及第二藍牙成員裝置120可進行流程1036,以依據主控裝置960傳來的標的控制指令,將相應音訊播放電路的音量降到預定臨界值以下。在本實施例中,第一藍牙成員裝置110在流程1036中的運作方式,與前述圖3中的流程310實質相同,而第二藍牙成員裝置120在流程1036中的運作方式,則與前述圖3中的流程314實質相同。 Then, the first Bluetooth member device 110 and the second Bluetooth member device 120 can perform the process 1036 to reduce the volume of the corresponding audio playback circuit below a predetermined threshold according to the target control command sent from the master control device 960 . In this embodiment, the operation mode of the first Bluetooth member device 110 in the process 1036 is substantially the same as the aforementioned process 310 in FIG. The process 314 in 3 is essentially the same.
例如,第一控制電路114可在流程1036中,依據主控裝置960傳來的標的控制指令,控制第一音訊處理電路112大幅調降第一音訊播放電路113的增益值或將第一音訊播放電路113的增益值調降到一預定水平以下,以將第一音訊播放電路113的音量大小降到預定臨界值以下。或者,第一控制電路114可依據標的控制指令,控制第一音訊處理電路112將第一音訊播放電路113切換成靜音模式、暫停第一 音訊播放電路113的播放運作、或是停止第一音訊播放電路113的播放運作。 For example, in process 1036, the first control circuit 114 can control the first audio processing circuit 112 to significantly reduce the gain value of the first audio playback circuit 113 or play the first audio according to the target control command transmitted from the main control device 960. The gain value of the circuit 113 is reduced below a predetermined level to reduce the volume of the first audio playback circuit 113 below a predetermined threshold value. Alternatively, the first control circuit 114 can control the first audio processing circuit 112 to switch the first audio playback circuit 113 to the silent mode, pause the first audio playback circuit 113 according to the target control instruction. The playback operation of the audio playback circuit 113 or the playback operation of the first audio playback circuit 113 is stopped.
同樣地,第二控制電路124可在流程1036中,依據主控裝置960傳來的標的控制指令,控制第二音訊處理電路122大幅調降第二音訊播放電路123的增益值或將第二音訊播放電路123的增益值調降到一預定水平以下,以將第二音訊播放電路123的音量大小降到預定臨界值以下。或者,第二控制電路124可依據標的控制指令,控制第二音訊處理電路122將第二音訊播放電路123切換成靜音模式、暫停第二音訊播放電路123的播放運作、或是停止第二音訊播放電路123的播放運作。 Similarly, in process 1036, the second control circuit 124 can control the second audio processing circuit 122 to significantly reduce the gain value of the second audio playback circuit 123 or to change the second audio signal according to the target control command transmitted from the main control device 960. The gain value of the playback circuit 123 is reduced below a predetermined level to reduce the volume of the second audio playback circuit 123 below a predetermined threshold value. Alternatively, the second control circuit 124 can control the second audio processing circuit 122 to switch the second audio playback circuit 123 to a silent mode, pause the playback operation of the second audio playback circuit 123, or stop the second audio playback according to the target control instruction. Playback operation of circuit 123.
由於第一藍牙成員裝置110及第二藍牙成員裝置120都是依據主控裝置960傳來的標的控制指令來調整音量大小,所以當第一音訊處理電路112將第一音訊播放電路113的音量大小降到預定臨界值以下時,第二音訊處理電路122也會同步將第二音訊播放電路123的音量大小降到預定臨界值以下。 Since the first Bluetooth member device 110 and the second Bluetooth member device 120 adjust the volume according to the target control command transmitted from the master control device 960, when the first audio processing circuit 112 adjusts the volume of the first audio playback circuit 113 When the volume of the second audio processing circuit 123 drops below the predetermined threshold, the second audio processing circuit 122 will also simultaneously reduce the volume of the second audio playing circuit 123 to below the predetermined threshold.
換言之,在第一藍牙成員裝置110及第二藍牙成員裝置120播放音訊廣播裝置150所廣播的音訊資料的過程中,主控裝置960可在偵測電路963偵測到前述的警報信號或是特定環境聲響時,產生並傳送一標的控制指令給第一藍牙成員裝置110及第二藍牙成員裝置120,以同步將第一藍牙成員裝置110及第二藍牙成員裝置120的音量大小降到預定臨界值以下。 In other words, during the process of the first Bluetooth member device 110 and the second Bluetooth member device 120 playing the audio data broadcast by the audio broadcast device 150, the main control device 960 can detect the aforementioned alarm signal or specific signal in the detection circuit 963. When there is ambient sound, a target control command is generated and transmitted to the first Bluetooth member device 110 and the second Bluetooth member device 120 to synchronously reduce the volume of the first Bluetooth member device 110 and the second Bluetooth member device 120 to a predetermined threshold value. the following.
在前述的第一藍牙成員裝置110及第二藍牙成員裝置120是一成對的降噪耳機的實施例中,主控裝置960在利用標的控制指令指示第一藍牙成員裝置110及第二藍牙成員裝置120將音量降到預定臨界值以下之後,還可利用通信電路961傳送一模式切換指令(mode-switching command)給第一藍牙成員裝置110及第二藍牙成員裝置120,以指示第一藍牙成員裝置110及第二藍牙成員裝置120從一降 噪模式(noise cancellation mode)切換至一通透模式(transparency mode),以更進一步增加其使用者對於外界聲響的接收能力。 In the aforementioned embodiment in which the first Bluetooth member device 110 and the second Bluetooth member device 120 are a pair of noise-cancelling headphones, the main control device 960 uses the target control command to instruct the first Bluetooth member device 110 and the second Bluetooth member After the device 120 reduces the volume below a predetermined threshold value, the device 120 may also use the communication circuit 961 to transmit a mode-switching command to the first Bluetooth member device 110 and the second Bluetooth member device 120 to instruct the first Bluetooth member device. The device 110 and the second Bluetooth member device 120 drop from one Switch the noise cancellation mode to a transparency mode to further increase the user's ability to receive external sounds.
在前述的藍牙音訊廣播系統900中,主控裝置960的通信電路961是採用除了藍牙通信方式以外的各種無線存取技術(RAT),將標的控制指令傳送給第一藍牙成員裝置110的第一無線通信電路715、以及第二藍牙成員裝置120的第二無線通信電路725。但這只是一示例性的實施例,並非侷限本發明之實際實施方式。實作上,主控裝置960的通信電路961可改用其他傳輸機制將標的控制指令傳送給第一藍牙成員裝置110及第二藍牙成員裝置120。 In the aforementioned Bluetooth audio broadcast system 900, the communication circuit 961 of the master device 960 uses various radio access technologies (RAT) other than Bluetooth communication methods to transmit the target control instructions to the first Bluetooth member device 110. The wireless communication circuit 715, and the second wireless communication circuit 725 of the second Bluetooth member device 120. However, this is only an exemplary embodiment and does not limit the actual implementation of the present invention. In practice, the communication circuit 961 of the main control device 960 can use other transmission mechanisms to transmit the target control instructions to the first Bluetooth member device 110 and the second Bluetooth member device 120 .
例如,在另一實施例中,主控裝置960的通信電路961可改用藍牙通信技術來傳送標的控制指令,以將標的控制指令傳送給第一藍牙成員裝置110的第一藍牙通信電路111、以及第二藍牙成員裝置120的第二藍牙通信電路121。在此情況下,第一藍牙成員裝置110可利用第一藍牙通信電路111接收主控裝置960傳來的標的控制指令,而第二藍牙成員裝置120則可利用第二藍牙通信電路121接收主控裝置960傳來的標的控制指令。如此一來,便可將圖9中的第一無線通信電路715和/或第二無線通信電路725省略。 For example, in another embodiment, the communication circuit 961 of the main control device 960 may instead use Bluetooth communication technology to transmit the target control instruction, so as to transmit the target control instruction to the first Bluetooth communication circuit 111 of the first Bluetooth member device 110. and the second Bluetooth communication circuit 121 of the second Bluetooth member device 120 . In this case, the first Bluetooth member device 110 can use the first Bluetooth communication circuit 111 to receive the target control instruction from the master control device 960, and the second Bluetooth member device 120 can use the second Bluetooth communication circuit 121 to receive the target control command from the master control device 960. Target control instructions sent from device 960. In this way, the first wireless communication circuit 715 and/or the second wireless communication circuit 725 in FIG. 9 can be omitted.
在主控裝置960的通信電路961改用藍牙通信技術來傳送標的控制指令給第一藍牙成員裝置110及第二藍牙成員裝置120的某些實施例中,主控裝置960的處理電路965可比照音訊廣播裝置150在前述圖3的流程302中的運作方式,將標的控制指令插入一或多個標的資料項目中。 In some embodiments in which the communication circuit 961 of the main control device 960 uses Bluetooth communication technology to transmit target control instructions to the first Bluetooth member device 110 and the second Bluetooth member device 120, the processing circuit 965 of the main control device 960 can be compared to The audio broadcast device 150 operates in the aforementioned process 302 of FIG. 3 by inserting the target control command into one or more target data items.
例如,在前述的標的資料項目是各種藍牙廣告封包的某些實施例中,處理電路965可將前述的標的控制指令,插入單一個藍牙廣告封包的單一或多個特定欄位中,或是分散插入多個藍牙廣告封包的特定欄位中。 For example, in some embodiments in which the aforementioned target data items are various Bluetooth advertising packets, the processing circuit 965 can insert the aforementioned subject control instructions into single or multiple specific fields of a single Bluetooth advertising packet, or disperse them. Insert multiple Bluetooth advertising packets into specific fields.
又例如,在前述的標的資料項目是各種BIS協定資料單元或BIG協定 資料單元的某些實施例中,處理電路965可將前述的標的控制指令,插入單一個BIS協定資料單元或BIG協定資料單元的單一或多個特定欄位中,或是分散插入多個BIS協定資料單元或BIG協定資料單元的特定欄位中。如前所述,前述的特定欄位可以是BIS協定資料單元或BIG協定資料單元中的事件計數(Event Counter)欄位、子事件計數(Sub-Event Counter)欄位、或負載計數(Payload Counter)欄位等等。 For another example, the aforementioned subject data items are various BIS protocol data units or BIG protocol In some embodiments of the data unit, the processing circuit 965 can insert the aforementioned target control instructions into a single or multiple specific fields of a single BIS protocol data unit or a BIG protocol data unit, or disperse it into multiple BIS protocols. In a specific field of a data unit or a BIG protocol data unit. As mentioned above, the aforementioned specific fields may be the event count (Event Counter) field, the sub-event count (Sub-Event Counter) field, or the payload counter (Payload Counter) in the BIS protocol data unit or the BIG protocol data unit. ) field and so on.
接著,處理電路965可比照音訊廣播裝置150在前述圖3的流程304中的運作方式,控制通信電路961操作在一標的傳送模式下,以將前述的一或多個標的資料項目傳送給第一藍牙成員裝置110及第二藍牙成員裝置120。通信電路961在標的傳送模式下將前述的一或多個標的資料項目傳送給第一藍牙成員裝置110及第二藍牙成員裝置120的方式,與前述圖3中的流程304及流程306相同。為了簡潔起見,在此不重複敘述。 Next, the processing circuit 965 can control the communication circuit 961 to operate in a target transmission mode to transmit the aforementioned one or more target data items to the first target according to the operation mode of the audio broadcast device 150 in the aforementioned process 304 of FIG. 3 . The Bluetooth member device 110 and the second Bluetooth member device 120. The communication circuit 961 transmits the one or more target data items to the first Bluetooth member device 110 and the second Bluetooth member device 120 in the target transmission mode in the same manner as the process 304 and the process 306 in FIG. 3 . For the sake of brevity, the description will not be repeated here.
在實際應用中,主控裝置960可比照前述調整第一藍牙成員裝置110或第二藍牙成員裝置120的音量大小的方式,利用標的控制指令來同步調整藍牙音訊廣播系統900中的其他藍牙成員裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140)的音量大小。但這只是一示例性的實施例,並非侷限本發明之實際實施方式。 In practical applications, the main control device 960 can use the target control instructions to synchronously adjust other Bluetooth member devices in the Bluetooth audio broadcast system 900 in the same manner as the aforementioned method of adjusting the volume of the first Bluetooth member device 110 or the second Bluetooth member device 120 . (For example, the volume of the aforementioned third Bluetooth member device 130 and fourth Bluetooth member device 140). However, this is only an exemplary embodiment and does not limit the actual implementation of the present invention.
實作上,藍牙音訊廣播系統900中的其他藍牙成員裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140)的音量大小,亦可改由另一個主控裝置(例如,主控裝置970)來控制。在此情況下,第三藍牙成員裝置130及第四藍牙成員裝置140會依據主控裝置970產生的標的控制指令,同步將播放預定音訊資料時的音量大小降到預定臨界值以下。 In practice, the volume of other Bluetooth member devices in the Bluetooth audio broadcast system 900 (for example, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140) can also be changed by another master control device (for example, Main control device 970) to control. In this case, the third Bluetooth member device 130 and the fourth Bluetooth member device 140 will simultaneously reduce the volume when playing the predetermined audio data to below a predetermined threshold according to the target control command generated by the master control device 970 .
請參考圖11,其所繪示為本發明一第八實施例的藍牙音訊廣播系統1100簡化後的功能方塊圖。類似於圖9中的藍牙音訊廣播系統900, 圖11中的藍牙音訊廣播系統1100同樣包含了音訊廣播裝置150、多個藍牙成員裝置(例如,前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140)、主控裝置960、以及主控裝置970。 Please refer to FIG. 11 , which shows a simplified functional block diagram of a Bluetooth audio broadcast system 1100 according to an eighth embodiment of the present invention. Similar to the Bluetooth audio broadcast system 900 in Figure 9, The Bluetooth audio broadcast system 1100 in FIG. 11 also includes an audio broadcast device 150 and a plurality of Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110, second Bluetooth member device 120, third Bluetooth member device 130, and Four Bluetooth member devices 140), a master device 960, and a master device 970.
相較於前述圖9的實施例,圖11的藍牙音訊廣播系統1100中的部分或全部藍牙成員裝置,還包含有一偵測電路。例如,在圖11的實施例中,除了前述的第一藍牙通信電路111、第一音訊處理電路112、第一音訊播放電路113、第一控制電路114、以及第一無線通信電路715之外,第一藍牙成員裝置110還包含有第一偵測電路716。相仿地,除了前述的第二藍牙通信電路121、第二音訊處理電路122、第二音訊播放電路123、第二控制電路124、以及第二無線通信電路725之外,第二藍牙成員裝置120還包含有第二偵測電路726。 Compared with the aforementioned embodiment of FIG. 9 , some or all of the Bluetooth member devices in the Bluetooth audio broadcast system 1100 of FIG. 11 also include a detection circuit. For example, in the embodiment of FIG. 11, in addition to the aforementioned first Bluetooth communication circuit 111, first audio processing circuit 112, first audio playback circuit 113, first control circuit 114, and first wireless communication circuit 715, The first Bluetooth member device 110 also includes a first detection circuit 716 . Similarly, in addition to the aforementioned second Bluetooth communication circuit 121, second audio processing circuit 122, second audio playback circuit 123, second control circuit 124, and second wireless communication circuit 725, the second Bluetooth member device 120 also A second detection circuit 726 is included.
在第一藍牙成員裝置110中,第一偵測電路716耦接於第一控制電路114,並設置成可偵測外界傳來的警報信號(例如,地震預警訊息、海嘯預警訊息)、或是特定環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。第一控制電路114可在第一偵測電路716偵測到前述的警報信號或是特定環境聲響時,產生一偵測信號DS,並利用第一無線通信電路715傳送偵測信號DS給主控裝置960。 In the first Bluetooth member device 110, the first detection circuit 716 is coupled to the first control circuit 114 and is configured to detect alarm signals from the outside (for example, earthquake warning messages, tsunami warning messages), or Specific environmental sounds (for example, air raid sirens, fire alarms, emergency broadcasts, or resident voice broadcasts, etc.). The first control circuit 114 can generate a detection signal DS when the first detection circuit 716 detects the aforementioned alarm signal or specific environmental sound, and uses the first wireless communication circuit 715 to transmit the detection signal DS to the main control unit. Device 960.
在第二藍牙成員裝置120中,第二偵測電路726耦接於第二控制電路124,並設置成可偵測外界傳來的警報信號(例如,地震預警訊息、海嘯預警訊息)、或是特定環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。第二控制電路124可在第二偵測電路726偵測到前述的警報信號或是特定環境聲響時,產生一偵測信號DS,並利用第二無線通信電路725傳送偵測信號DS給主控裝置960。 In the second Bluetooth member device 120, the second detection circuit 726 is coupled to the second control circuit 124 and is configured to detect alarm signals from the outside (for example, earthquake warning messages, tsunami warning messages), or Specific environmental sounds (for example, air raid sirens, fire alarms, emergency broadcasts, or resident voice broadcasts, etc.). The second control circuit 124 can generate a detection signal DS when the second detection circuit 726 detects the aforementioned alarm signal or specific environmental sound, and use the second wireless communication circuit 725 to transmit the detection signal DS to the main control unit. Device 960.
如前所述,前述的第一偵測電路716及第二偵測電路726,皆可用各 種合適的聲音接收及辨識電路(例如,一麥克風與一聲音辨識電路的搭配)來實現。第一偵測電路716可設置於第一藍牙成員裝置110的外部,也可與第一藍牙成員裝置110中的其他功能方塊整合在一起。相仿地,第二偵測電路726可設置於第二藍牙成員裝置120的外部,也可與第二藍牙成員裝置120中的其他功能方塊整合在一起。 As mentioned above, the first detection circuit 716 and the second detection circuit 726 can be A suitable sound receiving and recognition circuit (for example, a combination of a microphone and a sound recognition circuit) is implemented. The first detection circuit 716 may be disposed outside the first Bluetooth member device 110 , or may be integrated with other functional blocks in the first Bluetooth member device 110 . Similarly, the second detection circuit 726 can be disposed outside the second Bluetooth member device 120 , or can be integrated with other functional blocks in the second Bluetooth member device 120 .
圖11的藍牙音訊廣播系統1100中的其他藍牙成員裝置,可比照前述的第一藍牙成員裝置110或第二藍牙成員裝置120的架構,設置相應的偵測電路。 Other Bluetooth member devices in the Bluetooth audio broadcast system 1100 in FIG. 11 can be configured with corresponding detection circuits according to the architecture of the first Bluetooth member device 110 or the second Bluetooth member device 120 described above.
在圖11的實施例中,主控裝置960包含前述的通信電路961、處理電路965、以及一輸入電路1163。輸入電路1163耦接於處理電路965,並設置成允許主控裝置960的使用者對主控裝置960進行各種操作,例如,輸入指令、設定音量調整方向、或是設定音量調整量等等。 實作上,輸入電路1163可用鍵盤、滑鼠、遙控器、觸控螢幕、觸控板、按鈕、電阻式觸控電路、電容式觸控電路、陀螺儀、聲控輸入裝置、手勢感應裝置、採用其他各種指令產生技術的電路、或前述裝置的組合來實現。 In the embodiment of FIG. 11 , the main control device 960 includes the aforementioned communication circuit 961 , a processing circuit 965 , and an input circuit 1163 . The input circuit 1163 is coupled to the processing circuit 965 and is configured to allow the user of the main control device 960 to perform various operations on the main control device 960, such as inputting instructions, setting the volume adjustment direction, or setting the volume adjustment amount, etc. In practice, the input circuit 1163 can be a keyboard, a mouse, a remote control, a touch screen, a touch pad, a button, a resistive touch circuit, a capacitive touch circuit, a gyroscope, a voice control input device, a gesture sensor device, and the like. It can be implemented by circuits using various other instruction generation technologies or a combination of the aforementioned devices.
以下將搭配圖12來進一步說明圖11中的藍牙音訊廣播系統1100的運作方式。圖12為本發明一第三實施例的利用BLE音訊技術進行音訊廣播的方法簡化後的流程圖。 The operation of the Bluetooth audio broadcast system 1100 in FIG. 11 will be further explained below with reference to FIG. 12 . FIG. 12 is a simplified flow chart of a method for audio broadcasting using BLE audio technology according to a third embodiment of the present invention.
基本上,圖12中的個別流程的運作方式都跟前述圖10實施例中的相應流程相同。因此,圖11中的藍牙音訊廣播系統1100可比照前述圖9中的藍牙音訊廣播系統900的方式,來對多個藍牙成員裝置進行音訊廣播。 Basically, the individual processes in Figure 12 operate in the same manner as the corresponding processes in the aforementioned embodiment of Figure 10 . Therefore, the Bluetooth audio broadcast system 1100 in FIG. 11 can broadcast audio to multiple Bluetooth member devices in the same manner as the Bluetooth audio broadcast system 900 in FIG. 9 .
然而,在音訊廣播裝置150進行音訊廣播的過程中(亦即,在音訊廣播裝置150重複進行圖12的流程222及流程224的過程中),第一偵測電路716可偵測第一藍牙成員裝置110是否接收到預定的警報信號(例如,官方或其他單位透過電信系統或各種無線傳輸機制發送 的地震預警訊息、海嘯預警訊息等)、或是特定的環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。 However, during the process of audio broadcasting by the audio broadcasting device 150 (that is, during the process of the audio broadcasting device 150 repeating the process 222 and the process 224 of FIG. 12 ), the first detection circuit 716 can detect the first Bluetooth member. Whether the device 110 receives a predetermined alarm signal (for example, sent by an official or other unit through a telecommunications system or various wireless transmission mechanisms) earthquake warning messages, tsunami warning messages, etc.), or specific environmental sounds (such as air raid sirens, fire alarms, emergency broadcasts, or mileage voice broadcasts, etc.).
例如,第一偵測電路716可偵測第一藍牙成員裝置110是否接收到官方或其他單位,透過電信系統或其他無線傳輸機制傳來的地震預警訊息、海嘯預警訊息等警報信號。 For example, the first detection circuit 716 can detect whether the first Bluetooth member device 110 receives warning signals such as earthquake warning messages and tsunami warning messages from the official or other units through telecommunication systems or other wireless transmission mechanisms.
又例如,第一偵測電路716可接收外界環境的聲響,並將接收到的聲響與一或多個預定的聲響模型(例如,空襲警報、海嘯警報、或是火災警報的聲響模型)進行比對,以判斷第一藍牙成員裝置110的周邊環境是否發生空襲警報、海嘯警報、或是火災警報等特定的環境聲響。 For another example, the first detection circuit 716 may receive sounds from the external environment and compare the received sounds with one or more predetermined sound models (for example, sound models of air raid sirens, tsunami sirens, or fire alarms). Yes, to determine whether specific environmental sounds such as air raid alarms, tsunami alarms, or fire alarms occur in the surrounding environment of the first Bluetooth member device 110 .
又例如,第一偵測電路716可接收外界環境的聲響,並對接收到的聲響內容進行語音內容解析與辨識,以判斷第一藍牙成員裝置110的周邊環境是否發生各種緊急廣播、或是里長語音廣播等特定的環境聲響。 For another example, the first detection circuit 716 can receive sounds from the external environment, and analyze and identify the voice content of the received sounds to determine whether various emergency broadcasts or intruders are occurring in the surrounding environment of the first Bluetooth member device 110 . Specific environmental sounds such as long voice broadcasts.
當第一偵測電路716偵測到前述的警報信號或是特定環境聲響時,第一藍牙成員裝置110的第一控制電路114可產生一相應的偵測信號DS,並利用第一無線通信電路715傳送偵測信號DS給主控裝置960。 When the first detection circuit 716 detects the aforementioned alarm signal or specific environmental sound, the first control circuit 114 of the first Bluetooth member device 110 can generate a corresponding detection signal DS and use the first wireless communication circuit to 715 transmits the detection signal DS to the main control device 960 .
同樣地,第二偵測電路726可偵測第二藍牙成員裝置120是否接收到預定的警報信號(例如,官方或其他單位透過電信系統或各種無線傳輸機制發送的地震預警訊息、海嘯預警訊息等)、或是特定的環境聲響(例如,空襲警報、火災警報、緊急廣播、或是里長語音廣播等)。 Similarly, the second detection circuit 726 can detect whether the second Bluetooth member device 120 receives a predetermined warning signal (for example, an earthquake warning message, a tsunami warning message, etc. sent by the official or other units through a telecommunications system or various wireless transmission mechanisms. ), or specific environmental sounds (for example, air raid sirens, fire alarms, emergency broadcasts, or resident voice broadcasts, etc.).
例如,第二偵測電路726可偵測第二藍牙成員裝置120是否接收到官方或其他單位,透過電信系統或其他無線傳輸機制傳來的地震預警訊息、海嘯預警訊息等警報信號。 For example, the second detection circuit 726 can detect whether the second Bluetooth member device 120 receives warning signals such as earthquake warning messages and tsunami warning messages from the official or other units through telecommunication systems or other wireless transmission mechanisms.
又例如,第二偵測電路726可接收外界環境的聲響,並將接收到的聲響與一或多個預定的聲響模型(例如,空襲警報、海嘯警報、或 是火災警報的聲響模型)進行比對,以判斷第二藍牙成員裝置120的周邊環境是否發生空襲警報、海嘯警報、或是火災警報等特定的環境聲響。 For another example, the second detection circuit 726 may receive sounds from the external environment and compare the received sounds with one or more predetermined sound models (for example, air raid sirens, tsunami sirens, or A fire alarm sound model) is compared to determine whether specific environmental sounds such as air raid alarms, tsunami alarms, or fire alarms occur in the surrounding environment of the second Bluetooth member device 120 .
又例如,第二偵測電路726可接收外界環境的聲響,並對接收到的聲響內容進行語音內容解析與辨識,以判斷第二藍牙成員裝置120的周邊環境是否發生各種緊急廣播、或是里長語音廣播等特定的環境聲響。 For another example, the second detection circuit 726 can receive sounds from the external environment, and perform voice content analysis and identification on the received sound content to determine whether various emergency broadcasts or intruders are occurring in the surrounding environment of the second Bluetooth member device 120 . Specific environmental sounds such as long voice broadcasts.
當第二偵測電路726偵測到前述的警報信號或是特定環境聲響時,第二藍牙成員裝置120的第二控制電路124可產生一相應的偵測信號DS,並利用第二無線通信電路725傳送偵測信號DS給主控裝置960。 When the second detection circuit 726 detects the aforementioned alarm signal or specific environmental sound, the second control circuit 124 of the second Bluetooth member device 120 can generate a corresponding detection signal DS and use the second wireless communication circuit to 725 transmits the detection signal DS to the main control device 960 .
與前述圖10實施例的差別之處在於,在圖12的實施例中,主控裝置960的處理電路965是在通信電路961接收到第一藍牙成員裝置110或第二藍牙成員裝置120傳來的偵測信號DS時,進行圖12中的流程1032。 The difference from the aforementioned embodiment of Figure 10 is that in the embodiment of Figure 12, the processing circuit 965 of the main control device 960 receives the transmission from the first Bluetooth member device 110 or the second Bluetooth member device 120 in the communication circuit 961. When the detection signal DS is detected, process 1032 in Figure 12 is performed.
在流程1032中,處理電路965可產生一相應的標的控制指令,並可利用通信電路961採用除了藍牙通信方式以外的各種無線存取技術(RAT),將標的控制指令傳送給第一藍牙成員裝置110的第一無線通信電路715、以及第二藍牙成員裝置120的第二無線通信電路725,以指示第一藍牙成員裝置110及第二藍牙成員裝置120同步將音量大小降到預定臨界值以下。 In process 1032, the processing circuit 965 can generate a corresponding target control command, and can use the communication circuit 961 to use various radio access technologies (RAT) other than Bluetooth communication methods to transmit the target control command to the first Bluetooth member device. 110 and the second wireless communication circuit 725 of the second Bluetooth member device 120 to instruct the first Bluetooth member device 110 and the second Bluetooth member device 120 to simultaneously reduce the volume below a predetermined threshold value.
在此情況下,圖11中的第一藍牙成員裝置110及第二藍牙成員裝置120可進行前述的流程1034及流程1036,以接收主控裝置960傳來的標的控制指令,並依據標的控制指令,將相應音訊播放電路的音量降到預定臨界值以下。 In this case, the first Bluetooth member device 110 and the second Bluetooth member device 120 in FIG. 11 can perform the aforementioned process 1034 and process 1036 to receive the target control command from the master control device 960 and perform the target control command according to the target control command. , reducing the volume of the corresponding audio playback circuit below a predetermined critical value.
由於第一藍牙成員裝置110及第二藍牙成員裝置120都是依據主控裝置960傳來的標的控制指令來調整音量大小,所以當第一音訊處理電路112將第一音訊播放電路113的音量大小降到預定臨界值以下時, 第二音訊處理電路122也會同步將第二音訊播放電路123的音量大小降到預定臨界值以下。 Since the first Bluetooth member device 110 and the second Bluetooth member device 120 adjust the volume according to the target control command transmitted from the master control device 960, when the first audio processing circuit 112 adjusts the volume of the first audio playback circuit 113 When it falls below a predetermined critical value, The second audio processing circuit 122 will also simultaneously reduce the volume of the second audio playing circuit 123 below a predetermined threshold value.
換言之,在第一藍牙成員裝置110及第二藍牙成員裝置120播放音訊廣播裝置150所廣播的音訊資料的過程中,主控裝置960可在第一藍牙成員裝置110和/或第二藍牙成員裝置120偵測到前述的警報信號或是特定環境聲響時,產生並傳送一標的控制指令給第一藍牙成員裝置110及第二藍牙成員裝置120,以同步將第一藍牙成員裝置110及第二藍牙成員裝置120的音量大小降到預定臨界值以下。 In other words, during the process of the first Bluetooth member device 110 and the second Bluetooth member device 120 playing the audio data broadcast by the audio broadcast device 150 , the main control device 960 can control the first Bluetooth member device 110 and/or the second Bluetooth member device. When 120 detects the aforementioned alarm signal or specific environmental sound, it generates and sends a target control command to the first Bluetooth member device 110 and the second Bluetooth member device 120 to synchronize the first Bluetooth member device 110 and the second Bluetooth member device 120 . The volume level of the member device 120 drops below a predetermined threshold.
在前述的第一藍牙成員裝置110及第二藍牙成員裝置120是一成對的降噪耳機的實施例中,主控裝置960在利用標的控制指令指示第一藍牙成員裝置110及第二藍牙成員裝置120將音量降到預定臨界值以下之後,還可利用通信電路961傳送一模式切換指令(mode-switching command)給第一藍牙成員裝置110及第二藍牙成員裝置120,以指示第一藍牙成員裝置110及第二藍牙成員裝置120從一降噪模式(noise cancellation mode)切換至一通透模式(transparency mode),以更進一步增加其使用者對於外界聲響的接收能力。 In the aforementioned embodiment in which the first Bluetooth member device 110 and the second Bluetooth member device 120 are a pair of noise-cancelling headphones, the main control device 960 uses the target control command to instruct the first Bluetooth member device 110 and the second Bluetooth member After the device 120 reduces the volume below a predetermined threshold value, the device 120 may also use the communication circuit 961 to transmit a mode-switching command to the first Bluetooth member device 110 and the second Bluetooth member device 120 to instruct the first Bluetooth member device. The device 110 and the second Bluetooth member device 120 switch from a noise cancellation mode to a transparency mode to further increase the user's ability to receive external sounds.
與前述圖9的實施例類似,圖11中的主控裝置960的通信電路961可改用藍牙通信技術來傳送標的控制指令,以將標的控制指令傳送給第一藍牙成員裝置110的第一藍牙通信電路111、以及第二藍牙成員裝置120的第二藍牙通信電路121。在此情況下,第一藍牙成員裝置110可利用第一藍牙通信電路111接收主控裝置960傳來的標的控制指令,而第二藍牙成員裝置120則可利用第二藍牙通信電路121接收主控裝置960傳來的標的控制指令。如此一來,便可將圖11中的第一無線通信電路715和/或第二無線通信電路725省略。 Similar to the aforementioned embodiment of FIG. 9 , the communication circuit 961 of the main control device 960 in FIG. 11 can instead use Bluetooth communication technology to transmit the target control instructions to the first Bluetooth member device 110 of the first Bluetooth member device 110 . The communication circuit 111, and the second Bluetooth communication circuit 121 of the second Bluetooth member device 120. In this case, the first Bluetooth member device 110 can use the first Bluetooth communication circuit 111 to receive the target control instruction from the master control device 960, and the second Bluetooth member device 120 can use the second Bluetooth communication circuit 121 to receive the target control command from the master control device 960. Target control instructions sent from device 960. In this way, the first wireless communication circuit 715 and/or the second wireless communication circuit 725 in FIG. 11 can be omitted.
另外,在某些實施例中,亦可將圖11的第二藍牙成員裝置120中的第二偵測電路726省略。 In addition, in some embodiments, the second detection circuit 726 in the second Bluetooth member device 120 of FIG. 11 can also be omitted.
在主控裝置960的通信電路961改用藍牙通信技術來傳送標的控制指 令給第一藍牙成員裝置110及第二藍牙成員裝置120的某些實施例中,主控裝置960的處理電路965可比照音訊廣播裝置150在前述圖3的流程302中的運作方式,將標的控制指令插入一或多個標的資料項目中。此外,處理電路965還可比照音訊廣播裝置150在前述圖3的流程304中的運作方式,控制通信電路961操作在一標的傳送模式下,以將前述的一或多個標的資料項目傳送給第一藍牙成員裝置110及第二藍牙成員裝置120。通信電路961在標的傳送模式下將前述的一或多個標的資料項目傳送給第一藍牙成員裝置110及第二藍牙成員裝置120的方式,與前述圖3中的流程304及流程306相同。為了簡潔起見,在此不重複敘述。 The communication circuit 961 of the main control device 960 uses Bluetooth communication technology to transmit the target control instructions. In some embodiments of the first Bluetooth member device 110 and the second Bluetooth member device 120 , the processing circuit 965 of the main control device 960 can compare the operation mode of the audio broadcast device 150 in the aforementioned process 302 of FIG. 3 . Control instructions are inserted into one or more underlying data items. In addition, the processing circuit 965 can also control the communication circuit 961 to operate in a target transmission mode to transmit the aforementioned one or more target data items to the third target according to the operation mode of the audio broadcast device 150 in the aforementioned process 304 of FIG. 3 . A Bluetooth member device 110 and a second Bluetooth member device 120. The communication circuit 961 transmits the one or more target data items to the first Bluetooth member device 110 and the second Bluetooth member device 120 in the target transmission mode in the same manner as the process 304 and the process 306 in FIG. 3 . For the sake of brevity, the description will not be repeated here.
在實際應用中,圖11中的主控裝置960可比照前述調整第一藍牙成員裝置110或第二藍牙成員裝置120的音量大小的方式,利用標的控制指令來同步調整藍牙音訊廣播系統1100中的其他藍牙成員裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140)的音量大小。但這只是一示例性的實施例,並非侷限本發明之實際實施方式。 In practical applications, the main control device 960 in FIG. 11 can use the target control command to synchronously adjust the volume in the Bluetooth audio broadcast system 1100 in the same manner as the aforementioned method of adjusting the volume of the first Bluetooth member device 110 or the second Bluetooth member device 120 . The volume of other Bluetooth member devices (for example, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140). However, this is only an exemplary embodiment and does not limit the actual implementation of the present invention.
實作上,藍牙音訊廣播系統1100中的其他藍牙成員裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140)的音量大小,亦可改由另一個主控裝置(例如,主控裝置970)來控制。在此情況下,第三藍牙成員裝置130及第四藍牙成員裝置140會依據主控裝置970產生的標的控制指令,同步調整播放預定音訊資料時的音量大小。 In practice, the volume of other Bluetooth member devices in the Bluetooth audio broadcast system 1100 (for example, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140) can also be changed by another master control device (for example, Main control device 970) to control. In this case, the third Bluetooth member device 130 and the fourth Bluetooth member device 140 will synchronously adjust the volume when playing the predetermined audio data according to the target control command generated by the main control device 970 .
前述有關圖9中的相關電路與裝置的實施方式及連接方式的描述,亦適用於圖11的藍牙音訊廣播系統1100中。另外,由於圖12中的個別流程的運作方式,基本上都跟前述圖10實施例中的相應流程相同,因此,前述有關圖10的運作流程的描述,亦適用於圖12的實施例中。為簡潔起見,在此不重複敘述。 The foregoing description of the implementation and connection methods of the relevant circuits and devices in FIG. 9 is also applicable to the Bluetooth audio broadcast system 1100 of FIG. 11 . In addition, since the operation modes of individual processes in FIG. 12 are basically the same as the corresponding processes in the embodiment of FIG. 10 , the aforementioned description of the operation process of FIG. 10 is also applicable to the embodiment of FIG. 12 . For the sake of brevity, the description will not be repeated here.
由前述圖9至圖12的說明可知,在藍牙音訊廣播系統900、1100中的多成員藍牙裝置開始播放音訊廣播裝置150傳來的預定音訊資料之前,第一藍牙成員裝置110及第二藍牙成員裝置120就會先依據音訊廣播裝置150傳來的預定音量指示,分別將第一音訊播放電路113及第二音訊播放電路123的音量大小,調整成接近或等於前述的預定音量大小。 It can be known from the description of FIGS. 9 to 12 that before the multi-member Bluetooth devices in the Bluetooth audio broadcasting systems 900 and 1100 start playing the predetermined audio data from the audio broadcasting device 150, the first Bluetooth member device 110 and the second Bluetooth member The device 120 will first adjust the volume of the first audio playback circuit 113 and the second audio playback circuit 123 to be close to or equal to the aforementioned predetermined volume according to the predetermined volume instruction from the audio broadcasting device 150 .
因此,當第一藍牙成員裝置110開始利用第一音訊播放電路113播放音訊廣播裝置150傳來的預定音訊資料時,第一音訊播放電路113發出的音量大小會接近或等於前述的預定音量大小。同樣地,當第二藍牙成員裝置120開始利用第二音訊播放電路123播放音訊廣播裝置150傳來的預定音訊資料時,第二音訊播放電路123發出的音量大小也會接近或等於前述的預定音量大小。 Therefore, when the first Bluetooth member device 110 starts to use the first audio playing circuit 113 to play the predetermined audio data from the audio broadcasting device 150, the volume emitted by the first audio playing circuit 113 will be close to or equal to the aforementioned predetermined volume. Similarly, when the second Bluetooth member device 120 starts to use the second audio playback circuit 123 to play the predetermined audio data from the audio broadcast device 150, the volume emitted by the second audio playback circuit 123 will also be close to or equal to the aforementioned predetermined volume. size.
如此一來,第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時所發出的音量大小,就能讓使用者感到舒適,而不會造成使用者感到不適或不悅。 In this way, the volume emitted when the first audio playback circuit 113 and the second audio playback circuit 123 start to play the predetermined audio data synchronously can make the user feel comfortable without causing discomfort or displeasure to the user.
此外,由於第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時的音量大小,已被預先設置成接近或等於前述的預定音量大小,所以就算音訊廣播裝置150是在使用者沒有心理預期的情況下開始進行音訊廣播,也能避免使用者因為突如其來的音訊廣播的音量過大而受到驚嚇的問題發生。 In addition, since the volume when the first audio playing circuit 113 and the second audio playing circuit 123 start to play the predetermined audio data synchronously has been preset to be close to or equal to the aforementioned predetermined volume, even if the audio broadcasting device 150 is in use It can also prevent users from being frightened by sudden audio broadcasts when the volume of the audio broadcast is too loud.
同樣地,藍牙音訊廣播系統900、1100中的其他藍牙成員裝置(例如,前述的第三藍牙成員裝置130及第四藍牙成員裝置140),在開始播放音訊廣播裝置150傳來的預定音訊資料之前,就會先依據音訊廣播裝置150傳來的預定音量指示,分別將相關的音訊播放電路(圖中未繪示)的音量大小,調整成接近或等於前述的預定音量大小。因此,藍牙音訊廣播系統900、1100中的其他藍牙成員裝置開始同步播放預定音訊資料時所發出的音量大小,也能讓使用者感到 舒適,而不會造成使用者感到不適或不悅。 Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting systems 900 and 1100 (for example, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140), before starting to play the predetermined audio data transmitted from the audio broadcasting device 150 , according to the predetermined volume instruction from the audio broadcast device 150, the volume of the relevant audio playback circuit (not shown in the figure) is adjusted to be close to or equal to the aforementioned predetermined volume. Therefore, the volume emitted by other Bluetooth member devices in the Bluetooth audio broadcast system 900 and 1100 when they start to play predetermined audio data synchronously can also make the user feel Comfortable without causing discomfort or discomfort to the user.
另外,在藍牙音訊廣播系統900、1100中的多成員藍牙裝置播放音訊廣播裝置150所廣播的音訊資料的過程中,主控裝置960還可在偵測電路963、第一藍牙成員裝置110、和/或第二藍牙成員裝置120偵測到前述的警報信號或是特定環境聲響時,產生並傳送一標的控制指令給個別藍牙成員裝置(例如,前述的第一藍牙成員裝置110及第二藍牙成員裝置120),以同步將相關藍牙成員裝置的音量大小降到預定臨界值以下。換言之,前述的藍牙音訊廣播系統900、1100可於主控裝置960、第一藍牙成員裝置110、或第二藍牙成員裝置120接收到警報信號(例如,地震預警訊息、海嘯預警訊息等)時、或是主控裝置960、第一藍牙成員裝置110、或第二藍牙成員裝置120的周邊環境發生特定的環境聲響(例如,空襲警報、海嘯警報、火災警報、各種緊急廣播、或是里長語音廣播等)時,同步將藍牙音訊廣播系統900、1100中的不同藍牙成員裝置的音量大小降到預定臨界值以下,以避免使用者因錯過外界傳來的警報信號或特定聲響,而身陷危險情況,或是延誤反應時機。 In addition, during the process of the multi-member Bluetooth devices in the Bluetooth audio broadcasting systems 900 and 1100 playing the audio data broadcast by the audio broadcasting device 150, the main control device 960 can also control the detection circuit 963, the first Bluetooth member device 110, and /Or when the second Bluetooth member device 120 detects the aforementioned alarm signal or specific environmental sound, it generates and sends a target control command to individual Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110 and the second Bluetooth member device). Device 120) to synchronously reduce the volume of the relevant Bluetooth member device below a predetermined threshold. In other words, the aforementioned Bluetooth audio broadcast systems 900 and 1100 can receive an alarm signal (for example, earthquake warning message, tsunami warning message, etc.) when the master control device 960, the first Bluetooth member device 110, or the second Bluetooth member device 120. Or a specific environmental sound occurs in the surrounding environment of the main control device 960, the first Bluetooth member device 110, or the second Bluetooth member device 120 (for example, an air raid siren, a tsunami siren, a fire alarm, various emergency broadcasts, or a long voice). broadcast, etc.), simultaneously reduce the volume of different Bluetooth member devices in the Bluetooth audio broadcast system 900, 1100 below a predetermined threshold value to prevent users from missing alarm signals or specific sounds coming from the outside and being in danger. situation, or delayed response time.
再者,藍牙音訊廣播系統900、1100是採用BLE音訊技術來進行音訊廣播,而且音訊廣播裝置150可採用低複雜度通信編解碼器(LC3)對預定音訊資料進行編碼。因此,相較於傳統的音訊廣播方式而言,藍牙音訊廣播系統900、1100所採用的前述音訊廣播方法,不僅可降低多成員藍牙裝置的耗電量,進而延長多成員藍牙裝置的使用時間,還能有效提升音訊廣播的整體音訊品質。 Furthermore, the Bluetooth audio broadcasting systems 900 and 1100 use BLE audio technology for audio broadcasting, and the audio broadcasting device 150 can use a low-complexity communication codec (LC3) to encode predetermined audio data. Therefore, compared with the traditional audio broadcasting method, the aforementioned audio broadcasting method adopted by the Bluetooth audio broadcasting systems 900 and 1100 can not only reduce the power consumption of the multi-member Bluetooth device, but also extend the usage time of the multi-member Bluetooth device. It can also effectively improve the overall audio quality of audio broadcasts.
請注意,前述各流程圖中的流程執行順序只是一示範性的實施例,並非侷限本發明的實際實施方式。 Please note that the process execution sequence in each of the foregoing flowcharts is only an exemplary embodiment and does not limit the actual implementation of the present invention.
例如,圖2中的流程206,可以調整到流程202和/或流程204之前進行,也可以和流程202或流程204同時進行。 For example, process 206 in Figure 2 can be adjusted to be performed before process 202 and/or process 204, or can be performed simultaneously with process 202 or process 204.
又例如,圖10和/或圖12中的流程206,可以調整到流程1002之前進 行,也可以和流程1002同時進行。 As another example, process 206 in Figure 10 and/or Figure 12 can be adjusted to proceed before process 1002. Yes, it can also be done at the same time as process 1002.
又例如,圖2、圖10、和/或圖12中的流程222,可以調整到流程208和/或流程210之前進行,也可以和流程208或流程210同時進行。 For another example, process 222 in Figure 2, Figure 10, and/or Figure 12 can be adjusted to be performed before process 208 and/or process 210, or can be performed simultaneously with process 208 or process 210.
又例如,在某些實施例中,亦可將前述圖2中的流程208至流程220省略。 For another example, in some embodiments, the aforementioned process 208 to process 220 in FIG. 2 may be omitted.
又例如,在某些實施例中,亦可將前述圖10與圖12中的流程208、流程210、流程1012、流程1014、及流程1016省略。 For another example, in some embodiments, the process 208, the process 210, the process 1012, the process 1014, and the process 1016 in the aforementioned FIG. 10 and FIG. 12 may also be omitted.
在說明書及申請專利範圍中使用了某些詞彙來指稱特定的元件,而本領域內的技術人員可能會用不同的名詞來稱呼同樣的元件。本說明書及申請專利範圍並不以名稱的差異來做為區分元件的方式,而是以元件在功能上的差異來做為區分的基準。在說明書及申請專利範圍中所提及的「包含」為開放式的用語,應解釋成「包含但不限定於」。另外,「耦接」一詞在此包含任何直接及間接的連接手段。因此,若文中描述第一元件耦接於第二元件,則代表第一元件可通過電性連接或無線傳輸、光學傳輸等信號連接方式而直接地連接於第二元件,或通過其它元件或連接手段間接地電性或信號連接至第二元件。 Certain words are used in the specification and patent application to refer to specific components, but those skilled in the art may use different terms to refer to the same component. This specification and patent application do not use differences in names as a way to distinguish components, but differences in functions of components as a basis for distinction. The "include" mentioned in the specification and patent application scope is an open-ended term and should be interpreted as "include but not limited to". In addition, the word "coupling" here includes any direct and indirect connection means. Therefore, if a first element is described as being coupled to a second element, it means that the first element can be directly connected to the second element through electrical connection or signal connection such as wireless transmission or optical transmission, or through other elements or connections. Means are indirectly electrically or signal connected to the second element.
在說明書中所使用的「和/或」的描述方式,包含所列舉的其中一個項目或多個項目的任意組合。另外,除非說明書中特別指明,否則任何單數格的用語都同時包含複數格的含義。 The description "and/or" used in the specification includes one or any combination of multiple listed items. In addition, unless otherwise specified in the specification, any term in the singular shall also include the plural.
以上僅為本發明的較佳實施例,凡依本發明請求項所做的等效變化與修改,皆應屬本發明的涵蓋範圍。 The above are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention shall fall within the scope of the present invention.
110:第一藍牙成員裝置 110: First Bluetooth member device
111:第一藍牙通信電路 111: The first Bluetooth communication circuit
112:第一音訊處理電路 112: First audio processing circuit
113:第一音訊播放電路 113: First audio playback circuit
114:第一控制電路 114: First control circuit
120:第二藍牙成員裝置 120: Second Bluetooth member device
121:第二藍牙通信電路 121: Second Bluetooth communication circuit
122:第二音訊處理電路 122: Second audio processing circuit
123:第二音訊播放電路 123: Second audio playback circuit
124:第二控制電路 124: Second control circuit
130:第三藍牙成員裝置 130: Third Bluetooth member device
140:第四藍牙成員裝置 140: The fourth Bluetooth member device
150:音訊廣播裝置 150: Audio broadcast device
560:主控裝置 560:Master control device
561:通信電路 561: Communication circuit
563:偵測電路 563:Detection circuit
565:處理電路 565: Processing circuit
700:藍牙音訊廣播系統 700:Bluetooth audio broadcast system
715:第一無線通信電路 715: First wireless communication circuit
716:第一偵測電路 716: First detection circuit
725:第二無線通信電路 725: Second wireless communication circuit
726:第二偵測電路 726: Second detection circuit
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TWI792701B (en) | 2023-02-11 |
TWI800999B (en) | 2023-05-01 |
TW202322606A (en) | 2023-06-01 |
TW202226856A (en) | 2022-07-01 |
TW202404328A (en) | 2024-01-16 |
CN114648865A (en) | 2022-06-21 |
CN114648866A (en) | 2022-06-21 |
CN114648863A (en) | 2022-06-21 |
CN114648864A (en) | 2022-06-21 |
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