CN112965684B - Audio output control method and device - Google Patents
Audio output control method and device Download PDFInfo
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- CN112965684B CN112965684B CN201911272515.6A CN201911272515A CN112965684B CN 112965684 B CN112965684 B CN 112965684B CN 201911272515 A CN201911272515 A CN 201911272515A CN 112965684 B CN112965684 B CN 112965684B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The application discloses an audio output control method and device, comprising the following steps: when the processor receives the audio control instruction, corresponding audio output control hardware is determined according to the audio control instruction, and corresponding audio control signals are sent to the audio output control hardware; and the audio output control hardware controls the audio to be sent to the corresponding audio output equipment according to the audio control signal. By applying the technical scheme disclosed by the application, the complexity of development and maintenance can be effectively reduced, and the implementation and maintenance are easy.
Description
Technical Field
The application relates to the technical field of computer application, in particular to an audio output control method and device of an android system.
Background
In the existing Android (Android) secure terminal system, it is sometimes required to control the output enabling of audio, that is, when the audio output device in the terminal allows audio output and when the audio output device is not allowed to output, the audio output device controlled by the Android (Android) secure terminal system includes a loudspeaker, a receiver, bluetooth, a 3.5mm earphone, a typeC earphone and the like.
The applicant found in the course of implementing the application that: the existing audio control scheme has the problems of complex development and maintenance and high implementation cost. The specific cause analysis is as follows:
in the existing audio control method, the start and stop of a data stream are controlled by a Framework layer and a HAL layer of an Android system, so that the on-off control of audio output equipment is realized. The typical scheme is as follows:
when the application App of the application layer triggers a corresponding audio output control event according to the current scene, after receiving the event, the AudioFlinger module of the Framework layer monitors whether audio output exists currently. When audio output exists and the corresponding output device is the controlled output device (such as a loudspeaker, a receiver, a Bluetooth headset and the like), the sound can be reduced to 0, and the current output problem is solved.
When the audio output is switched or the audio output starts to be played next time, the AudioFlinger module judges whether the current output equipment needs to be controlled or not, and if so, the following processing is performed:
1. when the AudioFlinger module outputs downlink, an instruction is issued to trigger the HAL layer to set corresponding audio output equipment, wherein equipment needing to be controlled and output (such as a loudspeaker, a receiver, a bluetooth headset and the like which are closed currently) is shielded.
2. After receiving the instruction, the HAL layer starts the corresponding audio output device.
3. After being processed by the Framework layer, the data stream is sent to the HAL layer through the Binder mechanism of the Android and then sent to the corresponding device, wherein if the current output device is managed, the HAL layer can directly discard the data.
In practical applications, the solutions of the audio output devices adopted by different terminals are different. For example, some speakers are digital power amplifiers and some handsets are analog power amplifiers. When the Android version changes or the hardware changes, the Framework layer needs to correspondingly perform Framework adjustment or add new functions (such as supporting more channel outputs, supporting hardware decoding, supporting audio with a higher sampling rate, adding speech recognition, FM frequency modulation, and the like). Meanwhile, on the Android system, different chip manufacturers (MTK, high-pass, hai Si, exhibition, etc.) have different software frameworks (mainly in the HAL layer). Thus, the enabling manner adopted in the audio control method of different terminals will be different, for example, the conventional part controlled at the Framework layer needs to be adjusted to the HAL layer for processing. Therefore, when the audio control method of the terminal is developed, corresponding adaptation is needed to be made on the Framework and the HAL layer of the Android system according to the solution of the audio output equipment adopted by the terminal, so that the self-adopted enabling mode is realized. For example: the FM module, whose output may be directly interfaced with the Codec, is directly output to the device, resulting in disabling of the speaker and disabling of the FM function when the FM is outputting the speaker, which is not achieved by modification of the frame and HAL layers, must be turned off. In addition, some speech recognition is performed in the HAL layer, and when output preprocessing and echo cancellation are performed, data must be fed back (data is looped back to the HAL layer from the output device), and if the output device is not considered to be enabled in the architecture, speech recognition may be disabled or management may be disabled. And the hardware structure of different Audio processing chips is different, some use external Audio DSP, and some use built-in Audio DSP. For output management, the HAL layer needs to be subjected to platform differentiation. Even if the same manufacturer has different architectures within the HAL layer on different chips. Therefore, the existing audio output device solution needs to make corresponding adaptation on the Framework and HAL layers of the Android system, so that the existing audio control method has no universality, and audio control schemes need to be developed for all terminals respectively, thereby increasing the difficulty of development and maintenance.
Disclosure of Invention
In view of the above, the primary objective of the present application is to provide a method and apparatus for controlling audio output, which are easy to implement and maintain.
In order to achieve the above purpose, the technical scheme provided by the application is as follows:
an audio output control method, comprising:
when the processor receives the audio control instruction, corresponding audio output control hardware is determined according to the audio control instruction, and corresponding audio control signals are sent to the audio output control hardware;
and the audio output control hardware controls the audio to be sent to the corresponding audio output equipment according to the audio control signal.
Preferably, the determining the corresponding audio output control hardware according to the audio control instruction includes:
when the audio output equipment controlled by the audio control instruction is a loudspeaker or a receiver, the audio output control hardware is an audio digital signal processor (Audio DSP), a coder/decoder (Codec) or a Power Amplifier (PA);
when the audio output device controlled by the audio control instruction is Bluetooth device, the audio output control hardware is Codec;
when the audio output device controlled by the audio control instruction is a headset, the audio output control hardware is a Codec.
Preferably, the transmitting the corresponding audio control signal includes:
and sending an audio control signal corresponding to the audio control instruction to the audio output control hardware through an I2C bus or a serial peripheral interface or a synchronous serial interface.
Preferably, the audio control instruction is used for controlling the on or off of the audio output device.
The embodiment of the application also provides audio output control equipment, which comprises: a processor for:
when an audio control instruction is received, corresponding audio output control hardware is determined according to the audio control instruction, and corresponding audio control signals are sent to the audio output control hardware so as to trigger the audio output control hardware to control audio to be sent to corresponding audio output equipment according to the audio control signals.
Preferably, the processor is specifically configured to determine corresponding audio output control hardware according to the audio control instruction, including:
when the audio output equipment controlled by the audio control instruction is a loudspeaker or a receiver, the audio output control hardware is an audio digital signal processor (Audio DSP), a coder/decoder (Codec) or a Power Amplifier (PA);
when the audio output device controlled by the audio control instruction is Bluetooth device, the audio output control hardware is Codec;
when the audio output device controlled by the audio control instruction is a headset, the audio output control hardware is a Codec.
Preferably, the processor is specifically configured to send an audio control signal corresponding to the audio control instruction to the audio output control hardware through an I2C bus, a serial peripheral interface, or a synchronous serial interface.
Preferably, the audio control instruction is used for controlling the on or off of the audio output device.
The application also discloses a non-volatile computer readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the steps of the audio output control method as described above.
The application also discloses an electronic device comprising the non-volatile computer readable storage medium as described above, and the processor having access to the non-volatile computer readable storage medium.
As can be seen from the above technical solutions, the audio output control method and apparatus provided by the present application directly control audio output control hardware (Codec, power amplifier, audioDSP, etc.), to perform on/off control on audio output devices such as headphones, bluetooth devices, speakers, and handsets. Thus, on the one hand, the existing scheme of audio output control by controlling data flow on the frame and HAL layers is overcome: the audio output control schemes are different due to the difference of different Android systems, so that the complexity of implementation and maintenance of audio output control can be reduced, and on the other hand, the power consumption can be reduced, and particularly in a closed state, corresponding output equipment can be powered down, so that the effect of reducing the power consumption is achieved.
Drawings
FIG. 1 is a schematic flow chart of a method according to an embodiment of the application;
fig. 2 is a schematic diagram of audio output control implemented according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below by referring to the accompanying drawings and examples.
Fig. 1 is a flow chart of a method according to an embodiment of the present application, as shown in fig. 1, the audio output control method implemented by this embodiment mainly includes:
step 101, when the processor receives the audio control instruction, determining corresponding audio output control hardware according to the audio control instruction, and sending a corresponding audio control signal to the audio output control hardware.
In this step, unlike the existing scheme, when the processor receives the audio control instruction, it is required to directly output an audio control signal to the corresponding audio output control hardware to implement control of the relevant audio output device, instead of implementing output control of the audio output device by controlling the audio data stream at the application layer. In this way, no matter what audio playing schemes are adopted or different in the frame layer and the HAL layer by the operating systems on different terminals, the same audio output control scheme can be adopted, so that the complexity of realizing and maintaining the audio output control can be reduced.
In practical application, when the step is specifically implemented, the audio control instruction may be issued by an Application (APP) installed in the terminal. Then, the processor transmits the audio control instruction sent by the APP to the HAL layer through the Framework, and then analyzes the audio control instruction at the HAL layer to determine corresponding audio output control hardware, and directly transmits corresponding audio control signals to the determined audio output control hardware.
Preferably, in order to ensure the accuracy of audio output control, the following method may be adopted in this step to determine corresponding audio output control hardware according to the audio control instruction:
when the audio output device controlled by the audio control instruction is a speaker or a receiver, the audio output control hardware may be an audio digital signal processor (AudioDSP), a Codec (Codec), or a Power Amplifier (PA). In particular, suitable audio output control hardware may be set by those skilled in the art according to the actual needs and the audio solution actually employed by the terminal.
When the audio output device controlled by the audio control instruction is a bluetooth device, the audio output control hardware may be a Codec.
When the audio output device controlled by the audio control instruction is a headset, the audio output control hardware may be a Codec.
Preferably, the audio control signals corresponding to the audio control instructions may be transmitted to the audio output control hardware through control interfaces (I2C bus or Serial Peripheral Interface (SPI) or Synchronous Serial Interface (SSI)) of the audio output control hardware that is actually used.
Specifically, the audio control instructions will be used to control the turning on or off of the audio output device.
Preferably, the processor may be an application processor in the terminal.
Step 102, the audio output control hardware controls the audio to be sent to the corresponding audio output device according to the audio control signal.
Here, control of the audio output of the corresponding audio output device (i.e., control of turning on or off of the corresponding audio output) can be achieved using the audio control signal.
The audio output device can be a headset, a Bluetooth device, a loudspeaker, a receiver and the like.
In this step, the specific method for controlling the audio output of the audio output device according to the audio control signal is known to those skilled in the art, and will not be described herein.
According to the scheme, when the audio output of the audio output device needs to be controlled to be turned on or turned off in the embodiment of the method, the audio control signal of the processor is used for directly controlling the output of AudioDSP, codec or PA so as to achieve output control of the audio output device. As shown in fig. 2, the Android side (AP side) directly controls AudioDSP, codec and PA devices through audio control signals (including but not limited to I2C, SSI, SPI mode), specifically as follows:
1. when the horn and earpiece are turned off, the processor directly controls the output of the AudioDSP/Codec/PA via the audio control signal.
2. When the Bluetooth audio output is turned off, the processor directly controls the audio output of the Codec output to Bluetooth through the audio control signal.
3. When the earphone output is turned off, the processor directly controls the audio output by the Codec to the earphone through the audio control signal.
According to the scheme, the audio output control hardware (Codec, power amplifier, audioDSP and the like) is directly controlled to conduct on-off control on the audio output equipment such as the earphone, the Bluetooth equipment, the loudspeaker and the earphone, and the like, so that the hardware equipment is uniformly controlled by adopting a normalized control strategy, and on one hand, the problems of the existing scheme of audio output control realized by controlling data flows on a frame layer and a HAL layer are overcome: the audio output control schemes are different due to the difference of different Android systems, so that the complexity of implementation and maintenance of audio output control can be reduced, and on the other hand, the power consumption can be reduced, and particularly in a closed state, corresponding output equipment can be powered down, so that the effect of reducing the power consumption is achieved.
The embodiment of the application also provides audio output control equipment, which comprises: a processor for:
when an audio control instruction is received, corresponding audio output control hardware is determined according to the audio control instruction, and corresponding audio control signals are sent to the audio output control hardware so as to trigger the audio output control hardware to control audio to be sent to corresponding audio output equipment according to the audio control signals.
Preferably, the processor is specifically configured to determine corresponding audio output control hardware according to the audio control instruction, including:
when the audio output equipment controlled by the audio control instruction is a loudspeaker or a receiver, the audio output control hardware is an audio digital signal processor (Audio DSP), a coder/decoder (Codec) or a Power Amplifier (PA);
when the audio output device controlled by the audio control instruction is Bluetooth device, the audio output control hardware is Codec;
when the audio output device controlled by the audio control instruction is a headset, the audio output control hardware is a Codec.
Preferably, the processor is specifically configured to send an audio control signal corresponding to the audio control instruction to the audio output control hardware through an I2C bus, a serial peripheral interface, or a synchronous serial interface.
Preferably, the audio control instruction is used for controlling the on or off of the audio output device.
Preferably, the processor may be an application processor.
Furthermore, the present application provides a non-transitory computer readable storage medium storing instructions which, when executed by a processor, cause the processor to perform the steps of the audio output control method as described above.
Furthermore, the application provides an electronic device comprising the non-volatile computer readable storage medium as described above, and the processor having access to the non-volatile computer readable storage medium.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the application.
Claims (6)
1. An audio output control method, comprising:
when the processor receives an audio control instruction from an application APP installed in the terminal, corresponding audio output control hardware is determined through a HAL layer according to the audio control instruction, and corresponding audio control signals are sent to the audio output control hardware; the processor transmits the audio control instruction sent by the application to the HAL layer through the Framework layer after the application sends the audio control instruction, and analyzes the audio control instruction at the HAL layer to determine the corresponding audio output control hardware;
the audio output control hardware controls the audio to be sent to the corresponding audio output equipment according to the audio control signal;
the determining corresponding audio output control hardware includes:
when the audio output equipment controlled by the audio control instruction is a loudspeaker or a receiver, the audio output control hardware is an audio digital signal processor (Audio DSP), a coder/decoder (Codec) or a Power Amplifier (PA);
when the audio output device controlled by the audio control instruction is Bluetooth device, the audio output control hardware is Codec;
when the audio output device controlled by the audio control instruction is a headset, the audio output control hardware is a Codec.
2. The method of claim 1, wherein the transmitting the corresponding audio control signal comprises:
and sending an audio control signal corresponding to the audio control instruction to the audio output control hardware through an I2C bus or a serial peripheral interface or a synchronous serial interface.
3. An audio output control apparatus, comprising: a processor for:
when an audio control instruction is received from an application APP installed in a terminal, corresponding audio output control hardware is determined through a HAL layer according to the audio control instruction, and a corresponding audio control signal is sent to the audio output control hardware so as to trigger the audio output control hardware to control audio to be sent to corresponding audio output equipment according to the audio control signal; the processor transmits the audio control instruction sent by the application to the HAL layer through the Framework layer after the application sends the audio control instruction, and analyzes the audio control instruction at the HAL layer to determine the corresponding audio output control hardware;
the determining corresponding audio output control hardware includes:
when the audio output equipment controlled by the audio control instruction is a loudspeaker or a receiver, the audio output control hardware is an audio digital signal processor (Audio DSP), a coder/decoder (Codec) or a Power Amplifier (PA);
when the audio output device controlled by the audio control instruction is Bluetooth device, the audio output control hardware is Codec;
when the audio output device controlled by the audio control instruction is a headset, the audio output control hardware is a Codec.
4. The apparatus of claim 3, wherein the processor is specifically configured to send an audio control signal corresponding to the audio control instruction to the audio output control hardware via an I2C bus or serial peripheral interface or synchronous serial interface.
5. A non-transitory computer readable storage medium storing instructions which, when executed by a processor, cause the processor to perform the steps of the audio output control method of any of claims 1 to 2.
6. An electronic device comprising the non-volatile computer-readable storage medium of claim 5, and the processor having access to the non-volatile computer-readable storage medium.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621853A (en) * | 2009-06-29 | 2010-01-06 | 中兴通讯股份有限公司 | Audio enabled device and audio enabled method |
| CN102355518A (en) * | 2011-09-28 | 2012-02-15 | 惠州Tcl移动通信有限公司 | Mobile phone and audio processing method thereof |
| CN103607640A (en) * | 2013-11-06 | 2014-02-26 | 南通同洲电子有限责任公司 | Audio control method, device thereof and system thereof |
| CN104007977A (en) * | 2014-06-09 | 2014-08-27 | 威盛电子股份有限公司 | Electronic device and audio playing method |
| CN106170037A (en) * | 2016-06-27 | 2016-11-30 | 乐视控股（北京）有限公司 | Audio play control method and device |
| CN106648538A (en) * | 2016-12-30 | 2017-05-10 | 维沃移动通信有限公司 | Audio playing method of mobile terminal and mobile terminal |
| CN106792358A (en) * | 2017-01-06 | 2017-05-31 | 上海艾为电子技术股份有限公司 | Audio control system and audio system |
| CN106936972A (en) * | 2015-12-30 | 2017-07-07 | 小米科技有限责任公司 | Control method, the apparatus and system of voice-frequency channel |
| CN108012220A (en) * | 2017-12-29 | 2018-05-08 | 上海艾为电子技术股份有限公司 | Audio processor |
| CN109144464A (en) * | 2018-08-27 | 2019-01-04 | 歌尔科技有限公司 | A kind of method, apparatus and Android device of audio output |
| WO2019127114A1 (en) * | 2017-12-27 | 2019-07-04 | 深圳前海达闼云端智能科技有限公司 | Audio playback method for virtual machine and device thereof, and mobile terminal |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9519708B2 (en) * | 2013-05-29 | 2016-12-13 | Microsoft Technology Licensing, Llc | Multiple concurrent audio modes |
| US20170169834A1 (en) * | 2015-12-15 | 2017-06-15 | Le Holdings (Beijing) Co., Ltd | Android-based audio content processing method and device |
| US10776072B2 (en) * | 2016-03-29 | 2020-09-15 | Intel Corporation | Technologies for framework-level audio device virtualization |
-
2019
- 2019-12-12 CN CN201911272515.6A patent/CN112965684B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621853A (en) * | 2009-06-29 | 2010-01-06 | 中兴通讯股份有限公司 | Audio enabled device and audio enabled method |
| CN102355518A (en) * | 2011-09-28 | 2012-02-15 | 惠州Tcl移动通信有限公司 | Mobile phone and audio processing method thereof |
| CN103607640A (en) * | 2013-11-06 | 2014-02-26 | 南通同洲电子有限责任公司 | Audio control method, device thereof and system thereof |
| CN104007977A (en) * | 2014-06-09 | 2014-08-27 | 威盛电子股份有限公司 | Electronic device and audio playing method |
| CN106936972A (en) * | 2015-12-30 | 2017-07-07 | 小米科技有限责任公司 | Control method, the apparatus and system of voice-frequency channel |
| CN106170037A (en) * | 2016-06-27 | 2016-11-30 | 乐视控股（北京）有限公司 | Audio play control method and device |
| CN106648538A (en) * | 2016-12-30 | 2017-05-10 | 维沃移动通信有限公司 | Audio playing method of mobile terminal and mobile terminal |
| CN106792358A (en) * | 2017-01-06 | 2017-05-31 | 上海艾为电子技术股份有限公司 | Audio control system and audio system |
| WO2019127114A1 (en) * | 2017-12-27 | 2019-07-04 | 深圳前海达闼云端智能科技有限公司 | Audio playback method for virtual machine and device thereof, and mobile terminal |
| CN108012220A (en) * | 2017-12-29 | 2018-05-08 | 上海艾为电子技术股份有限公司 | Audio processor |
| CN109144464A (en) * | 2018-08-27 | 2019-01-04 | 歌尔科技有限公司 | A kind of method, apparatus and Android device of audio output |
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