1380690 101年08月09日梭正替换頁 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及音頻處理，尤其涉及一種機上盒》 【先前技術】 [0002] 隨著數位化時代的到來，將聲音數位化的功能也越來越 普及。目前，機上盒（Set Top Box)的功能也越來越 豐富，其中’機上盒的卡拉0K功能是目前比較流行的功 能之一。然，在習知的機上盒中的聲音數位化技術中， 原始設計無法實現聲音數位化的輸出，或者即使聲音能 夠數位化輸出，數位化後的聲音要經過多級數模轉換和 模數轉換，因此造成聲音的延遲訊號與聲音的品質失真 ，導致影像與聲音不同步的現象明顯。 【發明内容】 [0003] 有鑒於此，有必要提供一種機上盒，用於實現聲音數位 化與音效處理的同時減少聲音數位化後的延遲時間。 [0004] 本發明實施方式中之機上盒用於實現聲音數位化與音效 處理的同時減少聲音數位化後的延遲時間，該機上盒包 括聲音分析模组、模數轉換模組、中央處理器、伴唱處 理模組以及數位混音器β聲音分析模組用於接收唱歌聲 音訊號，並將所接收之唱歌聲音訊號由單音訊號轉換為 立體音訊號’以輪出立體唱歌聲音訊號。模數轉換模組 與聲音分析模組相連，用於將立體唱歌聲音訊號從類比 訊號轉換為數位訊號，以輸出數位唱歌聲音訊號。中央 處理器用於輸出第一伴唱訊號。伴唱處理模組與中央處 理器相連，用於調節中央處理器輸出之第一伴唱訊號， _Η54#單编號 Α0101 第4頁/共14頁 1013303021-0 1*380690 包括調節第一伴唱訊號的音量大小、音調高低以及切換 音樂模式與伴唱模式，以輸出第二伴唱訊號。數位混音 器，其輸入端與模數轉換模組及伴唱處理模组相連，其 ............ 輸出端與中央處理器相連，用於混合第二伴唱訊號與數 位唱歌聲音訊號以輸出人機混合聲音到中央處理器。其 中，中央處理器還用於將人機混合聲音轉換為數位立體 聲並輸出》 [0005] 藉由以下對具體實施方式詳細的描述並結合附圖，將可 輕易的瞭解上述内容及此項發明之技術效果。 [0006] [0007] 【實施方式】 請參閱圖1，所示本發明機上盒10—實施方式的結構圖 在本實施方式中，機上盒10包括聲音分析模組112、 轉換模組114、中央處理器116、伴唱處理模組118 、' δ及數 位混音器120。在本實施方式中，機上盒1〇可實現卡扱〇 功能。機上盒10與麥克風相連，用於將所述麥克風輪 的ρ曰歌聲音訊號處理為加入伴唱音樂的數位立體聲气號 並輸出，以實現卡拉〇Κ功能。 ' 在本實施方式巾’聲音分析模組112與麥克風相連 接收麥克風輸人的唱歌聲音訊號，並將所接收 ； 音訊號曰歌聲 u早9訊號轉換為立體音訊號，以輸出立體D昌歌 [0008] 施方式中’模數轉換模組114與聲音分析模乡且112 '用於將立體唱歌聲音訊號從類比訊號轉換為數 ，以輪出數位唱歌聲音訊號。 訊號 位 第5頁/共14頁 09811454# 單编號 A0101 1013303021-0 . 1380690 101年08月09日按正替換頁 [0009] 中央處理器116用於輸出第一伴唱訊號。在本實施方式中 ’第一伴唱訊號為個人根據自己的意願所選的伴唱音樂 ，且第一伴唱訊號為數位訊號。 [0010] 伴唱處理模組118與中央處理器116相連，用於調節中央 處理器116輸出的第一伴唱訊號，包括調節第一伴唱訊號 的音置大小、音調南低以及切換音樂模式與伴唱模式， 以輸出第二伴唱訊说。在本實施方式中，伴唱處理模組 118與中央處理器116可以通過I2S (lnter_lc sound Bus)匯流排、現場（NORMAL)匯流排或脈碼調變（1380690 Aug. 09, 2011, the page is replaced by the following description: [Technical Field] [0001] The present invention relates to audio processing, and more particularly to a set-top box. [Prior Art] [0002] With Digitization With the advent of the times, the function of digitizing sounds has become more and more popular. At present, the functions of the Set Top Box are becoming more and more abundant, and the Karaoke function of the on-board box is one of the more popular functions. However, in the conventional sound digitalization technology in the set-top box, the original design cannot achieve the digital output of the sound, or even if the sound can be digitally output, the digitized sound undergoes multi-level digital-to-analog conversion and modulus. The conversion causes the sound delay signal and the quality of the sound to be distorted, resulting in an obvious phenomenon that the image and the sound are not synchronized. SUMMARY OF THE INVENTION [0003] In view of the above, it is necessary to provide a set-top box for realizing sound digitization and sound effect processing while reducing delay time after sound digitization. [0004] The set-top box in the embodiment of the present invention is used for realizing sound digitization and sound effect processing, and reducing delay time after sound digitization. The set-top box includes a sound analysis module, an analog-to-digital conversion module, and a central processing. The singer processing module and the digital sound mixer beta sound analysis module are configured to receive the singing voice signal and convert the received singing voice signal from a single sound signal to a stereo sound signal 'to turn out the stereo singing voice signal. The analog-to-digital conversion module is connected to the sound analysis module for converting the stereo singing voice signal from the analog signal to the digital signal to output a digital singing voice signal. The central processor is used to output the first vocal signal. The vocal processing module is connected to the central processing unit for adjusting the first singer signal outputted by the central processing unit, _Η54# single number Α0101, 4th page, total 14 pages 1013303021-0 1*380690 including adjusting the volume of the first vocal signal Size, pitch level and switch music mode and vocal mode to output the second vocal signal. The digital mixer has an input terminal connected to the analog-to-digital conversion module and the chorus processing module, and the ... output terminal is connected to the central processing unit for mixing the second vocal signal and The digital singing voice signal is used to output the human-machine mixed sound to the central processing unit. Wherein, the central processing unit is further configured to convert the human-machine mixed sound into digital stereo and output. [0005] The above and the invention can be easily understood by the following detailed description of the specific embodiments and the accompanying drawings. Technical effects. [0007] [Embodiment] Please refer to FIG. 1 , which shows a structural diagram of an embodiment of the present invention. In the present embodiment, the set-top box 10 includes a sound analysis module 112 and a conversion module 114. The central processing unit 116, the accompaniment processing module 118, the 'δ and the digital mixer 120. In the present embodiment, the set-top box 1 can implement the cassette function. The set-top box 10 is connected to the microphone for processing the sing-song sound signal of the microphone wheel into a digital stereo gas number of the accompaniment music and outputting it to realize the karaoke function. In the present embodiment, the sound analysis module 112 is connected to the microphone to receive the singing voice signal of the microphone input, and converts the received sound signal to the stereo sound signal to output the stereo D song [ In the embodiment, the 'analog-to-digital conversion module 114 and the sound analysis module and 112' are used to convert the stereo singing voice signal from the analog signal into a number to rotate the digital singing voice signal. Signal Bit Page 5 of 14 09811454# Single No. A0101 1013303021-0 . 1380690 August 09, 2011 Press the replacement page [0009] The central processing unit 116 is used to output the first vocal signal. In the present embodiment, the first accompaniment signal is the accompaniment music selected by the individual according to his or her own wishes, and the first accompaniment signal is a digital signal. The accompaniment processing module 118 is connected to the central processing unit 116 for adjusting the first vocal signal output by the central processing unit 116, including adjusting the pitch of the first vocal signal, the pitch south, and switching the music mode and the accompaniment mode. , to output the second singer said. In the present embodiment, the accompaniment processing module 118 and the central processing unit 116 can pass the I2S (Inter_lc sound Bus) bus, the field (NORMAL) bus or the pulse code modulation (
Pulse Code Modulation，PCM)匯流排連接。 [0011] 數位混音器120的輸入端與模數轉換模組u 4及伴唱處理 模組118相連’其輸出端與中央處理器116相連，用於混 合第二伴唱訊號與數位唱歌聲音訊號，以輸出人機混合 聲音到中央處理器116。在本實施方式中，傳輸所述人機 混合聲音的匯流排可以是I2S匯流排、NORMAL匯流排或 PCM匯流排。在本實施方式中，數位混音器12〇與中央處 理器116可以通過I2S匯流排、NORMAL·匯流排或PCM匯流 排連接。 [0012] 在本實施方式中，中央處理器116還用於對視頻訊號與音 頻訊號的編碼與解碼，當中央處理器116接收到人機混合 聲音時，中央處理器116把該人機混合聲音處理為數位立 體聲並輸出。從本實施方式中可以看出，唱歌聲音訊號 只經過了兩級處理就實現了數位化，因此聲音的延遲時 間減少了。 09811454产單编號 A0101 第6頁/共丨4頁 1013303021-0 1380690 [0013] [0014] [0015] [0016] [0017] [0018] [0019] 〇98_β編號 101年08月09日核正替換q 同時，中央處理器1 16還用於輪出數位視頻訊號，因聲音 數位化後的延遲時間減少了，故聲音與影像不同步的時 間也縮短了。 請參閱圖2，所示為本發明另—實施方式的結構圖◊在本 實施方式中，該機上盒20包括聲音處理器21〇、數位混合 器220以及中央處理器230，其中，聲音處理器21〇包括 聲音分析模組212、伴唱處理模組214、聲效處理模組 216以及混合器218，數位混合器22〇包括模數轉換模組 222與數位混音器224。 在本實施方式中，中央處理器23〇、伴唱處理模組214、 模數轉換模組222的功能與圖1中相應模組的功能相同， 因此就功能而言不再做詳細論述。 在本實施方式中，聲音處理器21〇與中央處理器23〇相連 ，用於處理第一伴唱訊號與唱歌聲音訊號。聲音處理器 210可為整合晶片，如YSS915系列晶片。在本實施方式 中，聲音處理器210與中央處理器230可以通過I2S匯流 排、NORMAL匯流排或PCM匯流排連接。 聲音分析模組212與麥克風相連，用於接收麥克風輸入的 唱歌聲音訊號，並.將所接收的唱歌聲音訊號由單音訊號 轉換為立體音訊號，以輸出立體唱歌聲音訊號。 在本實施方式中，聲音分析模組212還用於根據唱歌聲音 訊號產生音效參數。在本實施方式中，音效參數包括唱 歌聲音訊號的音量大小、音調高低等資訊。 在本實施方式中，聲效處理模組216與聲音分析模組212 A0101 第7頁./共14頁 1013303021-0 1380690 _- 101年08月09日修正替换頁 相連，用於根據聲音分析模組212產生的音效參數產生音 效訊號。在本實施方式中，該音效訊號包括混響、重複 迴響、變聲。在本實施方式中，該音效訊號也為數位資 訊。 [0020] 混合器218的輸入端與聲效處理模組21 6及伴唱處理模組 214相連，用於混合第二伴唱訊號與音效訊號，以輸出第 三伴唱訊號到數位混音器224。 [0021] 音頻混合器220的輸入端與聲音處理器210相連，其輸出 端與中央處理器230相連，用於混合第三伴唱訊號與立體 唱歌聲音訊號，以輸出人機混合聲音到中央處理器230。 在本實施方式中，音頻混合器220與聲音處理器210及中 央處理器230通過I2S匯流排、現場匯流排或PCM匯流排 相連。在本實施方式中，立體唱歌聲音訊號在音頻混合 器220中會轉換為數位唱歌聲音訊號。音頻混合器220可 為整合晶片，如Digital Mixer embedded A/D Converter ° [0022] 在本實施方式中，數位混音器224還可與混合器218連接 ，用於混合第三伴唱訊號與數位唱歌聲音訊號，以輸出 到人機混合聲音到中央處理器230。 [0023] 在本實施方式中，當中央處理器230接收到在數位混音器 220中混合後的人機混合聲音時，中央處理器230把該人 機混合聲音處理為數位立體聲並輸出。這樣聲音數位化 的級數明顯減少，且中央處理器230輸出的數位立體聲的 效果更好，同時也減少聲音數位化後的延遲時間。 09811454#單编號 A0101 第8頁/共14頁 1013303021-0 1380690 101年08月09日按正替換頁 剛同時’中央處理器23〇還用於輸出數位視頻訊號因聲音 數位化後的延遲時間減少了，故聲音與影像不同步的時 間也縮短了。 [0025] 本發明的機上盒1〇通過聲音分析模組⑴、模數轉換模組 114 H處理器lie '伴唱處理模組118及數位混音器 120來減少頻繁的使用模數、數模轉換，從而減少聲音數 位化後的處理級數與聲音的延遲時間，提高聲音訊號的 品質，進而縮短聲音與影像不同步的時間，能實現用戶 感受不出影像與聲音不同步的問題。 [0026] .综上所述’本發明符合發明專利要件麦依法提出專利 申凊。惟，以上所述者僅為本發明之較佳實施例，舉凡 熟悉本案技藝之人士，在爰依本案發明精神所作之等效 修飾或變化，皆應包含於以下之_請專利範圍内。 【圖式簡單說明】 侧圖1為本發明機上盒一實施方式的結構圖。 闕冑2為本發明機上盒另—實施方式的結構圖。 【主要元件符號說明】 [0029] 聲音分析模組11 2、21 2 [0030] 模數轉換模組114 ' 222 [0031] 中央處理器116、230 [0〇32]伴唱處理模組118、214 _]數位混音器120、224 [0034]聲音處理器210 09811454# 單峨 AQ1G1 ^ 9 I / λ η 1 '、 1013303021-0 . 1380690 [0035] 聲效處理模組216 [0036] 混合器218 [0037] 音頻混合器220 [0038] 機上盒10、20 單編號A〇101 第10頁/共14頁 101年08月09日梭正替換頁 1013303021-0Pulse Code Modulation, PCM) bus bar connection. [0011] The input end of the digital mixer 120 is connected to the analog-to-digital conversion module u 4 and the accompaniment processing module 118. The output end thereof is connected to the central processing unit 116 for mixing the second vocal signal and the digital singing voice signal. The sound is mixed to the central processor 116 by the output human machine. In this embodiment, the bus bar that transmits the mixed sound of the human-machine may be an I2S bus, a NORMAL bus, or a PCM bus. In the present embodiment, the digital mixer 12A and the central processor 116 can be connected through an I2S bus, a NORMAL bus, or a PCM bus. [0012] In the embodiment, the central processing unit 116 is further configured to encode and decode the video signal and the audio signal. When the central processing unit 116 receives the human-machine mixed sound, the central processing unit 116 mixes the human-machine mixed sound. Processed as digital stereo and output. As can be seen from the present embodiment, the singing voice signal is digitalized only after two levels of processing, so the delay time of the sound is reduced. 09811454Bill No. A0101 Page 6/Total 4 Page 1013303021-0 1380690 [0013] [0015] [0018] [0019] 〇98_β No. 01, August 09, Nuclear At the same time, the central processing unit 16 is also used to rotate the digital video signal, and the delay time after the digitization of the sound is reduced, so that the time for the sound and the image to be out of synchronization is also shortened. Referring to FIG. 2, which is a structural diagram of another embodiment of the present invention, in the present embodiment, the set-top box 20 includes a sound processor 21A, a digital mixer 220, and a central processing unit 230, wherein the sound processing The device 21 includes a sound analysis module 212, a vocal processing module 214, a sound processing module 216, and a mixer 218. The digital mixer 22 includes an analog to digital conversion module 222 and a digital mixer 224. In the present embodiment, the functions of the central processing unit 23, the accompaniment processing module 214, and the analog-to-digital conversion module 222 are the same as those of the corresponding modules in FIG. 1, and thus will not be discussed in detail in terms of functions. In the present embodiment, the sound processor 21A is connected to the central processing unit 23A for processing the first vocal signal and the singing voice signal. The sound processor 210 can be an integrated wafer such as a YSS915 series of chips. In the present embodiment, the sound processor 210 and the central processing unit 230 may be connected by an I2S bus, a NORMAL bus, or a PCM bus. The sound analysis module 212 is connected to the microphone for receiving the singing voice signal input by the microphone, and converting the received singing voice signal from a single sound signal into a stereo sound signal to output a stereo singing voice signal. In the embodiment, the sound analysis module 212 is further configured to generate a sound effect parameter according to the singing voice signal. In this embodiment, the sound effect parameter includes information such as the volume level of the vocal sound signal, the pitch level, and the like. In the present embodiment, the sound processing module 216 is connected to the sound analysis module 212 A0101 page 7/14 pages 1013303021-0 1380690 _- 101 August 09 correction replacement page for sound analysis module The sound effect parameters generated by 212 generate an audio signal. In this embodiment, the sound effect signal includes reverberation, repeated reverberation, and variable sound. In this embodiment, the sound effect signal is also digital information. The input end of the mixer 218 is connected to the sound processing module 216 and the accompaniment processing module 214 for mixing the second vocal signal and the sound signal to output the third vocal signal to the digital mixer 224. [0021] The input end of the audio mixer 220 is connected to the sound processor 210, and the output end thereof is connected to the central processing unit 230 for mixing the third vocal signal and the stereo singing voice signal to output the human-machine mixed sound to the central processing unit. 230. In the present embodiment, the audio mixer 220 is coupled to the sound processor 210 and the central processor 230 via an I2S bus, a field bus, or a PCM bus. In the present embodiment, the stereo singing voice signal is converted into a digital singing voice signal in the audio mixer 220. The audio mixer 220 can be an integrated chip, such as Digital Mixer embedded A/D Converter ° [0022] In the present embodiment, the digital mixer 224 can also be connected to the mixer 218 for mixing the third vocal signal and digital singing. The sound signal is output to the human-machine mixing sound to the central processing unit 230. In the present embodiment, when the central processing unit 230 receives the human-machine mixed sound mixed in the digital mixer 220, the central processing unit 230 processes the human-machine mixed sound into digital stereo and outputs it. Thus, the number of digits of the sound is significantly reduced, and the digital stereo output from the central processing unit 230 is better, and the delay time after the digitization of the sound is also reduced. 09811454#单号A0101 Page 8 of 14 1013303021-0 1380690 On August 09, 101, the page was replaced by the same time. 'Central Processing Unit 23〇 is also used to output the delay time of the digital video signal due to the digitization of the sound. The time is reduced, so the time when the sound and the image are out of sync are also shortened. [0025] The set-top box 1 of the present invention reduces the frequent use of the modulus and the digital mode by the sound analysis module (1), the analog-to-digital conversion module 114 H processor lie 'song processing module 118 and the digital mixer 120 The conversion reduces the processing level and the delay time of the sound after digitization, improves the quality of the sound signal, and shortens the time when the sound and the image are out of synchronization, so that the user can not feel the image and the sound are out of sync. [0026] In summary, the invention conforms to the invention patent requirement, and the patent application is filed according to law. However, the above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art of the present invention should be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a structural view showing an embodiment of a set-top box of the present invention.阙胄 2 is a structural view of another embodiment of the on-board box of the present invention. [Main component symbol description] [0029] Sound analysis module 11 2, 21 2 [0030] Analog-to-digital conversion module 114 ' 222 [0031] Central processing unit 116, 230 [0〇32] vocal processing module 118, 214 _] Digital Mixer 120, 224 [0034] Sound Processor 210 09811454# Single AQ1G1 ^ 9 I / λ η 1 ', 1013303021-0 . 1380690 [0035] Sound Processing Module 216 [0036] Mixer 218 [ 0037] Audio Mixer 220 [0038] Set-top Box 10, 20 Single Number A〇101 Page 10/Total 14 Pages 101-August 09 Shuttle Replacement Page 1013303021-0