WO2020010755A1 - 音频播放和采集控制方法、系统及计算机可读存储介质 - Google Patents

音频播放和采集控制方法、系统及计算机可读存储介质 Download PDF

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Publication number
WO2020010755A1
WO2020010755A1 PCT/CN2018/112739 CN2018112739W WO2020010755A1 WO 2020010755 A1 WO2020010755 A1 WO 2020010755A1 CN 2018112739 W CN2018112739 W CN 2018112739W WO 2020010755 A1 WO2020010755 A1 WO 2020010755A1
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audio
smart terminal
bluetooth
voice
playback
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PCT/CN2018/112739
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English (en)
French (fr)
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黄子龙
黄霈
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南昌黑鲨科技有限公司
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Publication of WO2020010755A1 publication Critical patent/WO2020010755A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72442—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files

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  • the invention relates to the field of audio playback control, in particular to a method, system and computer-readable storage medium for audio playback and acquisition control.
  • smart terminals carry the needs of users in taking pictures, entertainment, sports, and office. And as the Internet of Things technology becomes more sophisticated, when performing the above requirements, it is usually accompanied by dedicated wireless external devices, such as a shooting module that enhances the shooting effect and focus, a handle module that assists the user's operation, and an audio device for playing audio. Wait. Many users even perform multiple operations at the same time. For example, when using smart terminals for entertainment operations, they not only use the handle module to control, but also use audio equipment such as headphones and stereos to play sounds and interact with others.
  • Bluetooth headsets connected to the Bluetooth of the smart terminal in order to get rid of the cable restraint and obtain better sound quality.
  • a Bluetooth headset When running a multiplayer collaborative game, a Bluetooth headset will be required to play sounds at the same time, and collect voices for calls with teammates.
  • Bluetooth calls will use HFP (Hands-free Profile) protocol, so that Bluetooth devices can control the phone, such as answering, hanging up, rejecting, voice dialing, etc., and through the SCO link (connection-oriented, Bluetooth Baseband technology), but because Bluetooth calls can only provide 8K or 16K sample rates and mono audio, the function of the call will also affect the audio quality when playing audio, that is, 8K or The 16K sampling rate and mono audio make it impossible for users to experience two-channel audio when playing games. In some game applications, it is impossible to distinguish the position of the enemy through the left and right channels, and the sound quality of the background sound is poor. , The user experience is poor.
  • HFP Heands-free Profile
  • an object of the present invention is to provide an audio playback and acquisition control method, system, and computer-readable storage medium, so that users can obtain better audio quality and improve their use when performing multi-person interaction Experience.
  • the invention discloses an audio playback and acquisition control method, which includes the following steps:
  • S100 a Bluetooth audio device establishes a Bluetooth connection with a smart terminal
  • S300 Adjust the audio playback mode of the smart terminal to a sound quality enhancement mode when the use scenario is that a designated application has been activated;
  • S400 the smart terminal cancels data transmission with the Bluetooth audio device through a voice audio channel
  • step S200 of identifying a use scenario of the smart terminal includes:
  • S210 identify a package name of an application running on the smart terminal
  • S220 Switch the Bluetooth audio device to an audio playing state.
  • the step S300 of adjusting the audio playback mode of the smart terminal to a sound quality enhancement mode includes:
  • S310 Query whether the smart terminal has a sound quality enhancement mode enabled
  • the step S400 in which the smart terminal cancels data transmission with the Bluetooth audio device through a voice audio path includes:
  • S430 Send a control instruction to disconnect the voice audio channel of the Bluetooth audio device from the smart terminal or disable the voice audio channel of the Bluetooth audio device.
  • Step S500 includes:
  • S510 The specified application requests to obtain voice audio
  • the step S500 further includes:
  • S540 The intelligent terminal reads audio enhancement attributes in the system
  • S550 Modify the audio output device in the system to A2DP output
  • S560 The Bluetooth audio device plays the sound audio through A2DP.
  • the invention also discloses an audio playback and acquisition system, which includes a Bluetooth audio device and a smart terminal connected by Bluetooth.
  • the smart terminal activates a designated application program, adjusts the audio playback mode to a sound quality enhancement mode, and disconnects from the Bluetooth Voice audio path of audio equipment;
  • the Bluetooth audio plays the voice audio of the designated application, and the intelligent terminal collects the voice audio corresponding to the collected request sent by the designated application to issue a request instruction.
  • the intelligent terminal sets the audio enhancement attribute in the system to true.
  • the smart terminal obtains a device connection list of the current Bluetooth connection, and changes the audio output device value in the system to A2DP output, so that the Bluetooth audio device plays the sound audio through A2DP.
  • the present invention also discloses a computer-readable storage medium on which a computer program is stored.
  • a computer program is stored on which a computer program is stored.
  • the nodes using the control method of the present invention can be intelligently adjusted without affecting the user experience
  • FIG. 1 is a schematic flowchart of an audio playback and acquisition control method according to a preferred embodiment of the present invention
  • FIG. 2 is a schematic flowchart of step S400 in accordance with the audio playback and acquisition control method in a preferred embodiment of the present invention
  • FIG. 3 is a schematic flowchart of step S500 in accordance with the audio playback and acquisition control method according to a preferred embodiment of the present invention
  • FIG. 4 is a schematic flowchart of step S500 of an audio playback and acquisition control method in accordance with a further preferred embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a system structure of an audio playback and acquisition system according to a preferred embodiment of the present invention.
  • first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • word “if” as used herein can be interpreted as “at” or "when” or "in response to determination”.
  • FIG. 1 a flowchart of a method for controlling audio playback and acquisition in accordance with a preferred embodiment of the present invention is shown.
  • a Bluetooth audio device such as a Bluetooth headset or a Bluetooth speaker to play audio and voice calls.
  • the audio quality of the playback will not be reduced due to the needs of voice calls. Therefore, the above two functions of the Bluetooth audio device will be separated, that is, audio playback will still be completed by the Bluetooth audio device, and the voice call will be passed to the unused Bluetooth.
  • Intelligent terminal that can still be completed independently under audio equipment. Specifically, perform the following steps to achieve:
  • S100 a Bluetooth audio device establishes a Bluetooth connection with a smart terminal
  • Bluetooth audio device Establish a Bluetooth connection between a Bluetooth audio device and a smart terminal. It can be achieved by activating the Bluetooth function of the Bluetooth audio device, searching for the Bluetooth audio device by the smart terminal, and verifying the steps. It can be understood that the Bluetooth audio device referred to in this embodiment may be various types of Bluetooth audio devices, such as a split Bluetooth headset, a neck-mounted Bluetooth headset, a single-ear Bluetooth headset, an ear-mounted Bluetooth headset, Bluetooth speakers, car Bluetooth devices, etc.
  • the Bluetooth audio device After the Bluetooth audio device is connected to the smart terminal, it will identify the current use status and use scenario of the smart terminal. For example, the smart terminal is currently in a standby state, starting an audio playback application, starting an application that uses both audio playback and voice capture functions, starting a text reading application, etc., what applications are running in the foreground, and so on. In addition, the status of the Bluetooth audio device connected to the smart terminal will also be detected, such as whether the Bluetooth audio device is activated or in standby.
  • a list will be preset in the smart terminal.
  • the applications stored in the list are designated applications, that is, when these designated applications are activated and running (such as running in the foreground and running in the background), audio playback and audio collection will be performed.
  • the two functions are separated. It can be understood that specifying the settings of the application program can control the selectivity of audio playback and capture control in the embodiment of the present invention. When the user only uses the audio playback function, there is no need to separate the two functions.
  • Bluetooth audio can be executed. Only when the user needs to run an application program, the application program outputs sound audio to the user at the same time, and needs to collect the user's voice audio, the control method of this embodiment will be used.
  • the designated application may be a game application that requires multi-person collaboration, a social application that requires multi-person interaction, or an audio-related entertainment application.
  • the preset of the designated application can be pre-stored in the smart terminal by the manufacturer of the smart terminal according to the division criteria, or the user can request download from the server storing the list of the designated application, or manually add the smart terminal installed in the smart terminal.
  • the audio playback mode of the smart terminal will be switched to the sound quality enhancement mode, that is, the high sound quality output is automatically reserved for the user.
  • the sound quality enhancement mode is only a title, and is not a limitation on the operation mode of the smart terminal. In some embodiments, even if the smart terminal does not have a named sound quality enhancement mode, the running state and operation result of the smart terminal after the subsequent steps are performed are regarded as the smart terminal entering a sound quality enhancement mode.
  • S400 The smart terminal cancels the data transmission with the Bluetooth audio device through the voice audio channel;
  • the smart terminal After the smart terminal is adjusted to the sound quality enhancement mode, the smart terminal will first cancel the connection with the Bluetooth audio device by disconnecting the voice audio channel from the Bluetooth audio device or disabling the Bluetooth connection of the voice audio channel of the Bluetooth audio device. Data transmission through voice audio channels. Because it is usually for a smart terminal, once it is connected to some Bluetooth audio devices, all audio-related functions will be completed by the Bluetooth audio device. In this step, by disconnecting or disabling the voice audio channel, the user sends a voice message to the Bluetooth audio device (such as the way the microphone for the Bluetooth audio device speaks). On or off, and cannot be transmitted to the smart terminal based on the Bluetooth protocol.
  • the voice call of the Bluetooth audio device is disabled, and after the function is turned off, the sound audio playback function of the Bluetooth audio device is retained.
  • the Bluetooth audio device will not have a trigger mechanism, and the sampling rate and channel of the playback audio and audio will be reduced to the low level required for the voice call.
  • the Bluetooth audio device After the Bluetooth audio device is connected to the smart terminal and the voice audio channel is disconnected, the Bluetooth audio device is still displayed normally on the smart terminal, and it is still displayed as connected on the Bluetooth audio device side. That is, for the user, its use experience is not different from normal operation, and it conforms to the user's usage habits.
  • the specified application sends a request instruction to the smart terminal, requesting the hardware on the smart terminal, or the device connected to the smart terminal to collect the voice and audio sent by the user to the smart terminal
  • the smart terminal will collect voice and audio according to the instruction, and in step S400, the voice audio channel of the Bluetooth audio device currently connected to the smart terminal has been cut off, and only voice and audio are collected through the microphone of the smart terminal, while the Bluetooth audio device is As a medium for sound audio playback, output to the user the sound generated in the specified application. Therefore, when the Bluetooth audio device outputs sound audio, since the audio channel is not occupied by the voice audio, there is no need to reduce the sampling rate and channel selection.
  • the Bluetooth audio device is only used as an external amplifier that can play sound to ensure the sound received by the user.
  • the quality of the audio After the voice audio is collected by the smart terminal, the smart terminal sends the voice signal to other users who cooperate with it through a designated application program for other users to receive.
  • the Bluetooth audio device will simultaneously play sound audio and collect speech Audio equipment to ensure the normal use of users. And if the user launches a designated application, since the designated application is in use, the user needs to face the smart terminal and be close to the smart terminal. Therefore, this rule can be used to ensure that the smart terminal is not affected by voice and audio. The collection does not cause a reduction in the user experience.
  • a non-designated application such as a social application (voice message), a call, etc.
  • the step S200 of identifying a use scenario of the smart terminal includes:
  • S210 identify the package name of the application running on the smart terminal
  • the package name of the currently running application program can be detected first. Considering that even an application running in the background may need to collect voice audio and play sound audio, so the currently running application does not distinguish between running in the foreground or running in the background of the smart terminal.
  • the package name of the application that is, detecting the name of the application, the situation of the application that is actually running can be determined.
  • S220 Switch the Bluetooth audio device to the audio playback state
  • the status of the HEADSET profile of the Bluetooth audio device can be detected, that is, whether the Bluetooth audio device is used as an audio output device after connecting, rather than as an operating device.
  • the Bluetooth audio device is not in the audio output state, the Bluetooth audio device needs to be switched to the audio playback state for subsequent steps.
  • step S300 includes:
  • step S200 After completing the preparatory work based on step S200, it is necessary to query whether the smart terminal has turned on the sound quality enhancement mode, that is, whether the user is allowed to activate the control mode of audio playback and collection of the present invention. Through the configuration of this step, the user can selectively turn on or off the control mode of the present invention according to his own preference.
  • the audio enhancement property of the operating system (referred to as "system") installed in the smart terminal can be property: ro.prop. bluetooth.audio_enhance is set to true, the property is activated. It can be understood that if the audio enhancement attribute is not activated, the attribute is set to false.
  • the operating system installed on the smart terminal does not have the audio enhancement attribute, it can be added in the smart terminal by the manufacturer of the smart terminal, or an updated version of the system can be provided, which can be downloaded and installed remotely and added.
  • step S400 includes:
  • the above audio enhancement attributes will always be in a true or false state depending on whether the user needs to perform a sound quality enhancement mode.
  • the audio enhancement property property: ro.prop.bluetooth.audio_enhance status is first read to determine whether the user Accept sound quality enhancements.
  • connection list of all devices connected to the smart terminal Bluetooth at the current time will be obtained through getConnectDevices () in the BluetoothHeadset in the system, including the device ID, physical address, Signal strength, etc. If the audio enhancement property is false, subsequent parameters will not be modified.
  • S430 Send a control instruction to disconnect the voice audio channel of the Bluetooth audio device from the smart terminal or disable the voice audio channel of the Bluetooth audio device;
  • a control instruction is issued to the Bluetooth audio device or the smart terminal through the disconnect () method of the Bluetooth Headset to disconnect or disable the voice audio channel.
  • the Bluetooth audio device only has "media audio" available, that is, the user side can receive sound audio, and its call function is disabled.
  • step S500 includes:
  • S510 The specified application requests to obtain voice audio
  • the designated application program sends a request instruction for collecting voice audio to the smart terminal.
  • the request instruction is actually issued by the user's operation on the designated application program, such as clicking a voice icon. Since the voice and audio channels have been disabled in step S400, when the designated application detects that only its own device can capture on the smart terminal, the request instruction is actually a request to call the microphone and speaker of the smart terminal. Therefore, the smart terminal directly uses the microphone device to collect voice and audio. In this state, the microphone device of the smart terminal is an audio uplink device, and the speaker device of the smart terminal is an audio downlink device.
  • step S500 further includes:
  • S540 The intelligent terminal reads the audio enhancement attributes in the system
  • S550 modify the audio output device in the system to A2DP output
  • S560 Bluetooth audio device plays sound audio through A2DP.
  • the smart terminal Since the user is carrying a Bluetooth audio device at this time, when the designated application calls the speaker device as a downstream device, the smart terminal will read the audio enhancement property ro.prop.bluetooth.audio_enhance in the system. Set by the user to true, modify the select_devices () function in the system installed on the smart terminal, and change the audio output device value output_device to SND_DEVICE_OUT_BT_A2DP, that is, the audio output is required to be changed to the A2DP-based protocol and played through the Bluetooth audio device Sound audio, so that the downstream path for audio is finally output through Bluetooth audio equipment through A2DP, and the upstream path is through the microphone device that the smart terminal itself has.
  • A2DP is the AdvancedAudioDistributionProfile Bluetooth audio transmission model agreement. Based on this protocol, the output audio can be stereo audio, and the sound sampling rate can reach 44.1kHz to improve the sound quality.
  • the present invention also discloses an audio playback and acquisition system, which includes a Bluetooth audio device and a smart terminal connected by Bluetooth.
  • the audio playback mode will be adjusted automatically or according to the user's operation.
  • the sound quality enhancement mode disconnects the voice audio channel from the Bluetooth audio device; the Bluetooth audio device plays the sound audio of the specified application program, and the intelligent terminal collects the collected voice audio corresponding to the request instruction issued by the specified application program.
  • the intelligent terminal assumes the task of collecting voice and audio, and the output of the voice and audio is completed by the Bluetooth audio device. After the two channels of audio are separated and independent, they will have their own sampling rates to ensure the high quality of the voice and audio.
  • the intelligent terminal sets the audio enhancement attribute in the system to true. And when adjusting the uplink and downlink channels of the audio, the smart terminal obtains the current Bluetooth connected device connection list, and changes the audio output device value in the system to A2DP output, so that the Bluetooth audio device plays sound audio through A2DP.
  • the invention also discloses a computer-readable storage medium on which a computer program is stored and installed in a smart terminal or integrated in an operating system installed in the smart terminal.
  • the computer program of the computer-readable storage medium is executed by the processor, the steps as described above are implemented to realize that any intelligent terminal can implement the control method in the embodiment of the present invention after connecting with any Bluetooth audio device.
  • Smart terminals can be implemented in various forms.
  • the terminals described in the present invention may include smart terminals such as mobile phones, smart phones, notebook computers, PDAs (personal digital assistants), PADs (tablets), PMPs (portable multimedia players), navigation devices, and the like, and Fixed terminal for digital TV, desktop computer, etc.
  • the terminal is a smart terminal.
  • PDAs personal digital assistants
  • PADs tablets
  • PMPs portable multimedia players
  • navigation devices and the like
  • the terminal is a smart terminal.
  • the configuration according to the embodiment of the present invention can be applied to a fixed type terminal in addition to an element particularly used for mobile purposes.

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Abstract

本发明提供了一种音频播放和采集控制方法、系统及计算机可读存储介质。音频播放和采集控制方法，包括以下步骤：S100：蓝牙音频设备与一智能终端建立蓝牙连接；S200：识别智能终端的使用场景；S300：当使用场景为已激活一指定应用程序时，调整智能终端音频播放模式为音质增强模式；S400：所述智能终端取消与所述蓝牙音频设备通过语音音频通路的数据传输；S500：当指定应用程序请求获取语音音频时，智能终端采集语音音频，并由蓝牙音频设备播放指定应用程序内的声音音频。采用上述技术方案后，可使得用户在进行多人交互时，可获得更佳的音频质量，提高自身的使用体验。

Description

音频播放和采集控制方法、系统及计算机可读存储介质 技术领域
本发明涉及音频播放控制领域，尤其涉及一种音频播放和采集控制方法、系统及计算机可读存储介质。
背景技术
随着智能终端的快速发展，用户对智能终端的集成性需求也越发提高。目前，智能终端承载了用户的拍照、娱乐、运动、办公等各项需求。且随着物联网技术的日益精进，在进行上述需求时，通常配合有专用的无线外接设备，如加强拍摄效果和聚焦的拍摄模组，辅助用户操作的手柄模组，用于播放音频的音频设备等。甚至不少用户会同时进行多项操作，例如在使用智能终端娱乐化操作时，既使用手柄模组控制，有使用如耳机、音响等音频设备播放声音和与他人互动的语音。
由于在娱乐化操作时，不少用户为了摆脱线缆束缚并取得较好的音质，会使用与智能终端蓝牙连接的蓝牙耳机。在运行多人协作游戏的时候，会同时需要蓝牙耳机播放声音，并采集同队友进行通话的语音。在进行语音的过程中，蓝牙通话会使用HFP(Hands-free Profile协议，让蓝牙设备可以控制电话，如接听、挂断、拒接、语音拨号等)，并通过SCO链路(面向连接，蓝牙基带技术中的一种)来进行，但是由于蓝牙通话只能提供8K或者16K的采样率以及单声道音频，其通话的功能也将影响其播放音频时的音频音质，即也将播放8K或者16K采样率及单声道的音频，使得用户在进行游戏时，无法体验到双声道的音频，在部分游戏应用中，便无法通过左右声道来分辨敌人方位，背景声音的音质也很差，用户体验较差。
因此，需要一种对音频播放和采集的新型控制方法，在保证用户正常语音通话下时，播放高音质的音频。
发明内容
为了克服上述技术缺陷，本发明的目的在于提供一种音频播放和采集控制方法、系统及计算机可读存储介质，使得用户在进行多人交互时，可获得更佳的音频质量，提高自身的使用体验。
本发明公开了一种音频播放和采集控制方法，包括以下步骤：
S100：蓝牙音频设备与一智能终端建立蓝牙连接；
S200：识别所述智能终端的使用场景；
S300：当所述使用场景为已激活一指定应用程序时，调整所述智能终端音频播放模式为音质增强模式；
S400：所述智能终端取消与所述蓝牙音频设备通过语音音频通路的数据传输；
S500：当所述指定应用程序请求获取语音音频时，所述智能终端采集所述语音音频，并由所述蓝牙音频设备播放所述指定应用程序内的声音音频。
优选地，识别所述智能终端的使用场景的步骤S200包括：
S210：识别所述智能终端运行的应用程序的包名；
S220：切换所述蓝牙音频设备至音频播放状态。
优选地，当所述使用场景为已激活一指定应用程序时，调整所述智能终端音频播放模式为音质增强模式的步骤S300包括：
S310：查询所述智能终端是否开启音质增强模式；
S320：当所述智能终端开启音质增强模式时，将所述智能终端的系统内的音频增强属性设为true。
优选地，所述智能终端取消与所述蓝牙音频设备通过语音音频通路的数据传输的步骤S400包括：
S410：读取所述音频增强属性的属性值；
S420：获取所述智能终端内显示当前蓝牙连接的设备连接清单；
S430：下发控制指令以断开所述蓝牙音频设备与所述智能终端的语音音频通路或禁用所述蓝牙音频设备的语音音频通路。
优选地，当所述指定应用程序请求获取语音音频时，所述智能终端采集所 述语音音频，并由所述蓝牙音频设备播放所述指定应用程序内的声音音频的步骤S500包括：
S510：所述指定应用程序请求获取语音音频；
S520：判断所述语音音频通路的状态；
S530：当所述语音音频通路为断开状态时，所述智能终端调用麦克风设备采集语音音频。
优选地，所述步骤S500还包括：
S540：所述智能终端读取系统内的音频增强属性；
S550：修改所述系统内音频输出设备值为A2DP输出；
S560：所述蓝牙音频设备通过A2DP播放所述声音音频。
本发明还公开了一种音频播放和采集系统，包括蓝牙连接的蓝牙音频设备和智能终端，所述智能终端激活一指定应用程序，调整音频播放模式为音质增强模式，并断开与所述蓝牙音频设备的语音音频通路；
所述蓝牙音频播放所述指定应用程序的声音音频，并由所述智能终端采集所述指定应用程序发出请求指令对应采集的语音音频。
优选地，所述智能终端设定系统内的音频增强属性为true。
优选地，所述智能终端获取当前蓝牙连接的设备连接清单，并修改所述系统内音频输出设备值为A2DP输出，使所述蓝牙音频设备通过A2DP播放所述声音音频。
本发明又公开了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如上所述的步骤。
采用了上述技术方案后，与现有技术相比，具有以下有益效果：
1.通过对智能终端当前场景的检测，可智能地调节使用本发明控制方法的节点，不影响用户体验；
2.提高用户使用娱乐类应用程序并通话时播放的音频质量，提高用户在使用此类娱乐类应用程序的体验；
3.适配能力强，在不同厂家、不同型号的智能终端上均可适用。
附图说明
图1为符合本发明一优选实施例中音频播放和采集控制方法的流程示意图；
图2为符合本发明一优选实施例中音频播放和采集控制方法的步骤S400的流程示意图；
图3为符合本发明一优选实施例中音频播放和采集控制方法的步骤S500的流程示意图；
图4为符合本发明一进一步优选实施例中音频播放和采集控制方法的步骤S500的流程示意图；
图5为符合本发明一优选实施例中音频播放和采集系统的系统结构示意图。
具体实施方式
以下结合附图与具体实施例进一步阐述本发明的优点。
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
在本公开使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开。在本公开和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
在本发明的描述中，需要理解的是，术语“纵向”、“横向”、“上”、“下”、“前”、 “后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，除非另有规定和限定，需要说明的是，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是机械连接或电连接，也可以是两个元件内部的连通，可以是直接相连，也可以通过中间媒介间接相连，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。
在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为了有利于本发明的说明，其本身并没有特定的意义。因此，“模块”与“部件”可以混合地使用。
参阅图1，为符合本发明一优选实施例中音频播放和采集控制方法的流程示意图，在该实施例中，为了保证用户在使用如蓝牙耳机、蓝牙音箱等蓝牙音频设备播放音频和语音通话过程中，不会因为语音通话的需求而降低播放的音频质量，因此将对蓝牙音频设备的上述两功能进行分离，即音频的播放，仍由蓝牙音频设备完成，而语音通话则交由未使用蓝牙音频设备下仍能独立完成的智能终端。具体地，执行以下步骤实现：
S100：蓝牙音频设备与一智能终端建立蓝牙连接；
将一蓝牙音频设备与智能终端建立蓝牙连接。可通过激活蓝牙音频设备的蓝牙功能、智能终端搜索蓝牙音频设备、验证通过的步骤实现。可以理解的是，该实施例中所指的蓝牙音频设备，可以是各种类型的蓝牙音频设备，如分体式蓝牙耳机、颈挂式蓝牙耳机、单耳式蓝牙耳机、耳挂式蓝牙耳机、蓝牙音箱、车载蓝牙设备等。
S200：识别智能终端的使用场景；
蓝牙音频设备与智能终端连接后，将对智能终端当前的使用状态与使用场景进行识别。如智能终端当前属于待机状态、启动音频播放应用程序、启动同时使用音频播放和语音采集功能的应用程序、启动文字阅读类应用程序等、前台运行有哪些应用程序等。此外，还将检测与智能终端连接的蓝牙音频设备的 状态，如蓝牙音频设备是否激活、是否处于待机状态等。
S300：当使用场景为已激活一指定应用程序时，调整智能终端音频播放模式为音质增强模式；
在智能终端内将预设有一清单，该清单内所存储的应用程序为指定应用程序，即在这些指定应用程序被激活并运行(如前台运行、后台运行)时，将对音频播放和音频采集的两功能进行分离。可以理解的是，指定应用程序的设定，可控制本发明实施例中对音频播放和采集控制时具有选择性，在用户仅使用其中音频播放功能时，实无必要分离两功能，由蓝牙音频设备功能执行即可。仅当用户需要在一应用程序运行时，该应用程序同时向用户输出声音音频，并需要采集用户的语音音频时，才将使用本实施例的控制方式。因此，指定应用程序可以是需多人协作的游戏类应用程序，也可以是需多人交互的社交类应用程序，也可以是与音频有关的娱乐类应用程序等。通过指定应用程序的设置，可防止用户在打开无需进行本发明配置的应用程序时，语音采集和声音输出紊乱，避免不符合自身使用习惯的操作的情况出现。
该指定应用程序的预设，可由智能终端的厂商根据划分标准预存在智能终端内，或是由用户向存放有该指定应用程序的清单的服务器请求下载，也可手动添加安装在智能终端内的应用程序，以形成符合自身要求的客制型指定应用程序的清单。
若对智能终端的使用场景识别为已激活指定应用程序时，将切换智能终端的音频播放模式为音质增强模式，即自动地为用户保留高音质的输出。可以理解的是，该音质增强模式仅为一称谓，并非对智能终端运行模式的限定。在部分实施例中，即便智能终端不具有一已名称化的音质增强模式，后续步骤执行完毕后智能终端的运行状态和运行结果，视为智能终端进入一音质增强模式。
S400：智能终端取消与蓝牙音频设备通过语音音频通路的数据传输；
在智能终端调整至音质增强模式后，首先智能终端将通过断开与蓝牙音频设备的语音音频通路的方式，或是禁用蓝牙音频设备的语音音频通路的蓝牙连接的方式，来取消与蓝牙音频设备通过语音音频通路的数据传输。由于通常对于智能终端而言，一旦其与某些蓝牙音频设备连接后，所有与音频有关的功能 将全由蓝牙音频设备完成。而在该步骤中，通过断开或禁用语音音频通路，用户对蓝牙音频设备发出的语音消息(如面向蓝牙音频设备的麦克风说话的方式)，蓝牙音频即便采集，也会由于语音音频通路的断开或禁用，而无法基于蓝牙协议传输至智能终端处。通过该方式，禁用了蓝牙音频设备的语音通话，在关闭该功能后，保留蓝牙音频设备的声音音频播放功能。同时，也就是通过蓝牙音频设备的语音通话功能的关闭，蓝牙音频设备也不会存在触发机制，将播放声音音频的采样率和声道降至语音通话要求的低级别。
在蓝牙音频设备与智能终端连接后，并断开语音音频通道后，在智能终端上仍正常显示该蓝牙音频设备，且在蓝牙音频设备侧，也仍显示已连接。即对于用户而言，其使用体验上，与正常操作没有区别，符合用户的使用习惯。
S500：当指定应用程序请求获取语音音频时，智能终端采集语音音频，并由蓝牙音频设备播放指定应用程序内的声音音频。
在指定应用程序运行的过程中，若指定应用程序向智能终端发出一请求指令，请求调用智能终端上的硬件，或调用与智能终端连接的设备，从而采集用户向智能终端发出的语音音频时，智能终端将根据该指令采集语音音频，且由于在步骤S400中，当前与智能终端连接的蓝牙音频设备的语音音频通路已被切断，只有通过智能终端的麦克风来采集语音音频，而蓝牙音频设备则作为声音音频播放的媒介，向用户输出指定应用程序内生成的声音。由此，在蓝牙音频设备输出声音音频时，由于音频通道未被语音音频占用，无需降低采样率和声道选择，蓝牙音频设备只作为可播放声音的外放设备使用，保证用户所接收的声音音频的质量。而语音音频被智能终端采集后，智能终端将语音信号通过指定应用程序发送至协作的其他用户，供其他用户接收。
经过上述配置，若用户所启动的为非指定应用程序，如对接收的声音音频要求较低的社交类应用程序(语音消息)、通话等，则蓝牙音频设备将同时作为播放声音音频和采集语音音频的设备，保证用户的正常使用。而若用户所启动的为指定应用程序，由于此类指定应用程序在使用时，需要用户正对智能终端，且靠近智能终端，因此恰可以利用这一规律，保证智能终端对语音音频的无碍采集，不会对用户的使用体验造成降低的情况发生。
在一优选实施例中，识别智能终端的使用场景的步骤S200包括：
S210：识别智能终端运行的应用程序的包名；
对于智能终端当前的使用场景的判定和识别，可首先通过对当前运行的应用程序的包名进行检测。考虑到即便是后台运行的应用程序，也有可能会需要采集语音音频，并播放声音音频，因此该当前运行的应用程序可不区分在智能终端的前台运行或后台运行。通过对应用程序的包名的检测，即对应用程序的名称的检测，可确定实际运行的应用程序的情况。
S220：切换蓝牙音频设备至音频播放状态；
而后，可检测蓝牙音频设备的HEADSET profile的状态，即蓝牙音频设备是否连接后作为音频输出的设备使用，而不是作为操作设备等。当蓝牙音频设备不处于音频输出的状态时，也需将蓝牙音频设备切换到音频播放状态，以供后续步骤的实现。
在另一优选实施例中，步骤S300包括：
S310：查询智能终端是否开启音质增强模式；
在步骤S200基础上完成预先准备工作后，需查询智能终端是否开启音质增强模式，即用户是否允许激活本发明对音频播放和采集的控制方式。通过该步骤的配置，用户可根据自身的喜好选择性地开启或关闭本发明的控制方式。
S320：当智能终端开启音质增强模式时，将智能终端的系统内的音频增强属性设为true；
在用户对智能终端的操作，同意开启音质增强模式后，即需要执行音质增强的策略，则可对智能终端内安装的操作系统(简称为“系统”)的音频增强属性property：ro.prop.bluetooth.audio_enhance置为true，即激活该属性。可以理解的是，若不激活该音频增强属性，该属性置为false。
若智能终端所安装的操作系统不具有该音频增强属性，则可由智能终端的制造厂商在智能终端内添加，或是提供系统的更新版本，远程下载并安装后添加。
参阅图2，进一步优选实施例中，步骤S400包括：
S410：读取音频增强属性的属性；
上述音频增强属性将根据用户对是否需要执行音质增强模式而始终属于true或false的状态。而在检测到用户已激活一指定应用程序，或激活指定应用程序且该指定应用程序请求采集语音音频时，将首先读取音频增强属性property：ro.prop.bluetooth.audio_enhance的状态，确定用户是否接受音质增强。
S420：获取智能终端内显示当前蓝牙连接的设备连接清单；
确认通过，即该音频增强属性为true时，将通过系统内的BluetoothHeadset中的getConnectDevices()来获取当前时刻下，与智能终端蓝牙连接的所有设备的连接清单，包括设备的名称ID、物理地址、信号强度等。而如果音频增强属性为false时，将不对后续参数进行修改。
S430：下发控制指令以断开蓝牙音频设备与智能终端的语音音频通路或禁用蓝牙音频设备的语音音频通路；
在此步骤中，针对用作音频播放和采集的蓝牙音频设备，通过BluetoothHeadset的disconnect()的方式，下发控制指令至蓝牙音频设备或智能终端本身，断开或禁用语音音频通路。此时蓝牙音频设备仅“媒体音频”可用即用户侧可接收到声音音频，其通话功能被禁用。
在另一优选或可选实施例中，参阅图3，步骤S500包括：
S510：指定应用程序请求获取语音音频；
S520：判断语音音频通路的状态；
S530：当语音音频通路为断开状态时，智能终端调用麦克风设备采集语音音频。
指定应用程序向智能终端发出采集语音音频的请求指令，该请求指令，实由用户对指定应用程序的操作，例如点击语音图标等下发。由于在步骤S400中，语音音频通路已被禁用，因此，指定应用程序检测智能终端上仅有其自身的设备才可采集时，该请求指令实则为请求调用智能终端的麦克风和扬声器。因此，智能终端便直接使用麦克风设备采集语音音频，即在该状态下，智能终端的麦克风设备为音频上行设备，智能终端的扬声器设备则为音频下行设备。
进一步地，参阅图4，步骤S500还包括：
S540：智能终端读取系统内的音频增强属性；
S550：修改系统内音频输出设备值为A2DP输出；
S560：蓝牙音频设备通过A2DP播放声音音频。
由于此时用户正携带有蓝牙音频设备，因此，在指定应用程序调用扬声器设备为下行设备时，将读取智能终端读取系统内的音频增强属性ro.prop.bluetooth.audio_enhance，若该属性已被用户设置为true，则修改智能终端安装的系统内的select_devices()函数，将其内的音频输出设备值output_device改为SND_DEVICE_OUT_BT_A2DP，即要求音频输出改为基于A2DP的协议，并通过蓝牙音频设备播放声音音频，从而最终实现音频的下行通路为通过A2DP的蓝牙音频设备输出，上行通路为通过智能终端本身具有的麦克风设备。A2DP为AdvancedAudioDistributionProfile蓝牙音频传输模型协定，基于该协议，可使得输出的音频为立体音频，声音的采样率能达到44.1kHz，以达到提高音质的效果。
参阅图5，本发明还公开了一种音频播放和采集系统，包括蓝牙连接的蓝牙音频设备和智能终端，智能终端在激活一指定应用程序，将自动地或根据用户的操作调整音频播放模式为音质增强模式，并断开与蓝牙音频设备的语音音频通路；蓝牙音频设备播放指定应用程序的声音音频，并由智能终端采集指定应用程序发出请求指令对应采集的语音音频。也就是说，智能终端承担采集语音音频的任务，声音音频的输出由蓝牙音频设备完成，两通路音频分离并独立后，将具有各自的采样率，保证了声音音频的高质量。
进一步地，智能终端设定系统内的音频增强属性为true。且在调整音频的上下行通路时，智能终端获取当前蓝牙连接的设备连接清单，并修改系统内音频输出设备值为A2DP输出，使蓝牙音频设备通过A2DP播放声音音频。
本发明还公开了一种计算机可读存储介质，其上存储有计算机程序，并安装在智能终端内，或是集成在智能终端安装的操作系统内。该计算机可读存储介质的计算机程序被处理器执行时实现如上所述的步骤，以实现任意的智能终端在与任意的蓝牙音频设备连接后，均可实现本发明实施例中的控制方法。
智能终端可以以各种形式来实施。例如，本发明中描述的终端可以包括诸如移动电话、智能电话、笔记本电脑、PDA(个人数字助理)、PAD(平板电脑)、PMP(便携式多媒体播放器)、导航装置等等的智能终端以及诸如数字TV、台式 计算机等等的固定终端。下面，假设终端是智能终端。然而，本领域技术人员将理解的是，除了特别用于移动目的的元件之外，根据本发明的实施方式的构造也能够应用于固定类型的终端。
应当注意的是，本发明的实施例有较佳的实施性，且并非对本发明作任何形式的限制，任何熟悉该领域的技术人员可能利用上述揭示的技术内容变更或修饰为等同的有效实施例，但凡未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何修改或等同变化及修饰，均仍属于本发明技术方案的范围内。

Claims (10)

  1. 一种音频播放和采集控制方法，其特征在于，包括以下步骤：
    S100：蓝牙音频设备与一智能终端建立蓝牙连接；
    S200：识别所述智能终端的使用场景；
    S300：当所述使用场景为已激活一指定应用程序时，调整所述智能终端音频播放模式为音质增强模式；
    S400：所述智能终端取消与所述蓝牙音频设备通过语音音频通路的数据传输；
    S500：当所述指定应用程序请求获取语音音频时，所述智能终端采集所述语音音频，并由所述蓝牙音频设备播放所述指定应用程序内的声音音频。
  2. 如权利要求1所述的音频播放和采集控制方法，其特征在于，识别所述智能终端的使用场景的步骤S200包括：
    S210：识别所述智能终端运行的应用程序的包名；
    S220：切换所述蓝牙音频设备至音频播放状态。
  3. 如权利要求1所述的音频播放和采集控制方法，其特征在于，当所述使用场景为已激活一指定应用程序时，调整所述智能终端音频播放模式为音质增强模式的步骤S300包括：
    S310：查询所述智能终端是否开启音质增强模式；
    S320：当所述智能终端开启音质增强模式时，将所述智能终端的系统内的音频增强属性设为true。
  4. 如权利要求3所述的音频播放和采集控制方法，其特征在于，所述智能终端取消与所述蓝牙音频设备通过语音音频通路的数据传输的步骤S400包括：
    S410：读取所述音频增强属性的属性值；
    S420：获取所述智能终端内当前蓝牙连接的设备连接清单；
    S430：下发控制指令以断开所述蓝牙音频设备与所述智能终端的语音音频通路或禁用所述蓝牙音频设备的语音音频通路。
  5. 如权利要求1所述的音频播放和采集控制方法，其特征在于，当所述指定应用程序请求获取语音音频时，所述智能终端采集所述语音音频，并由所述蓝牙音频设备播放所述指定应用程序内的声音音频的步骤S500包括：
    S510：所述指定应用程序请求获取语音音频；
    S520：判断所述语音音频通路的状态；
    S530：当所述语音音频通路为断开状态时，所述智能终端调用麦克风设备采集语音音频。
  6. 如权利要求5所述的音频播放和采集控制方法，其特征在于，所述步骤S500还包括：
    S540：所述智能终端读取系统内的音频增强属性；
    S550：修改所述系统内音频输出设备值为A2DP输出；
    S560：所述蓝牙音频设备通过A2DP播放所述声音音频。
  7. 一种音频播放和采集系统，包括蓝牙连接的蓝牙音频设备和智能终端，其特征在于，所述智能终端激活一指定应用程序，调整音频播放模式为音质增强模式，并断开与所述蓝牙音频设备的语音音频通路；所述蓝牙音频设备播放所述指定应用程序的声音音频，并由所述智能终端采集所述指定应用程序发出请求指令对应采集的语音音频。
  8. 如权利要求7所述的音频播放和采集系统，其特征在于，所述智能终端设定系统内的音频增强属性为true。
  9. 如权利要求8所述的音频播放和采集系统，其特征在于，所述智能终端获取当前蓝牙连接的设备连接清单，并修改所述系统内音频输出设备值为A2DP输出，使所述蓝牙音频设备通过A2DP播放所述声音音频。
  10. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如权利要求1-6任一项所述的步骤。
PCT/CN2018/112739 2018-07-10 2018-10-30 音频播放和采集控制方法、系统及计算机可读存储介质 WO2020010755A1 (zh)

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