WO2022247495A1

WO2022247495A1 - Audio focus control method and related apparatus

Info

Publication number: WO2022247495A1
Application number: PCT/CN2022/086102
Authority: WO
Inventors: 谢东; 方贇
Original assignee: 华为技术有限公司
Priority date: 2021-05-27
Filing date: 2022-04-11
Publication date: 2022-12-01
Also published as: CN115407961A

Abstract

Provided in the present application are an audio focus control method and a related apparatus. The method comprises the steps: a mobile terminal receiving a first instruction input by a user, wherein the first instruction is used for requesting the playing of audio information in a first application in the mobile terminal; the mobile terminal sending audio focus request information to an in-vehicle terminal, wherein the audio focus request information is used for requesting an audio focus of an acoustic device on the in-vehicle terminal, and an operating system of the mobile terminal and an operating system of the in-vehicle terminal constitute a distributed operating system; the mobile terminal receiving audio focus request response information sent by the in-vehicle terminal, wherein the audio focus request response information is used for indicating whether the mobile terminal successfully requests the audio focus of the acoustic device; and when the mobile terminal successfully requests the audio focus of the acoustic device, the mobile terminal sending the audio information in the first application to the in-vehicle terminal. By means of the technical solution, the problem of conflict between audio focuses under a distributed operating system is solved, thereby improving the user experience.

Description

Audio focus control method and related device

This application claims the priority of the Chinese patent application with the application number 202110587251.4 and the application name "Audio Focus Control Method and Related Devices" submitted to the China Patent Office on May 27, 2021, the entire contents of which are incorporated in this application by reference middle.

technical field

The present application relates to the technical field of wireless communication, and in particular to a method for controlling audio focus and related devices.

Background technique

With the development of network technology, the Internet of Everything has become a new development direction, and distributed systems have gradually developed. In a distributed system, multiple terminal devices, such as mobile phones, tablets, smart wearables, smart screens, and car machines, share a set of audio equipment. When audio applications such as navigation, music playback, and communication in multiple terminal devices are simultaneously When calling this set of audio equipment, there will be conflicts in the use of audio equipment, which will affect the user experience.

Contents of the invention

The audio focus control method and related device provided in the present application can solve the problem of audio focus conflict when the operating systems of multiple terminals form a distributed operating system.

In a first aspect, the present application provides a method for controlling audio focus. The method includes: the mobile terminal receives a first instruction input by a user, and the first instruction is used to request to play audio information in a first application in the mobile terminal; the mobile terminal sends an audio focus request to the car-machine terminal information, the audio focus request information is used to request the audio focus of the audio equipment on the car-machine terminal, the operating system of the mobile terminal and the operating system of the car-machine terminal constitute a distributed operating system; the mobile terminal receiving the audio focus request response information sent by the vehicle-machine terminal, the audio focus request response information being used to indicate whether the mobile terminal successfully requests the audio focus of the audio device; the mobile terminal successfully requests the audio focus of the audio device In the case of audio focus, the mobile terminal sends the audio information in the first application to the vehicle-machine terminal.

In the method of the present application, after the mobile terminal and the car-machine terminal form a distributed operating system, and the mobile terminal applies for the audio focus of the audio equipment on the car-machine terminal, the car-machine terminal can provide the audio focus of the audio equipment to the mobile terminal. Therefore, when the car-machine terminal and the mobile terminal apply for the audio focus of the audio device at the same time, the audio focus of the car-machine terminal device's audio device does not know the audio focus conflict that should be assigned to that device.

In some implementation manners, before the mobile terminal receives the first instruction input by the user, the audio device of the vehicle-machine terminal plays the audio information of the third application on the mobile terminal.

That is to say, when the third application of the mobile terminal constituting the distributed system uses the audio focus of the audio device, if the second application on the mobile terminal applies for the audio focus of the audio device, the car-machine terminal can assign the audio focus to The second application that is applied for later can avoid the problem of audio focus conflict caused by multiple applications on the mobile terminal applying for the same audio focus at the same time.

In some implementations, before the mobile terminal receives the first instruction input by the user, after the operating system of the mobile terminal forms a distributed operating system with the operating system of the vehicle-machine system this time, the mobile terminal fails to pass the The audio equipment has played audio information.

In some implementations, the method further includes: the mobile terminal receiving audio focus change request information from the vehicle-machine terminal, the audio focus change request information is used to request to change the audio focus of the audio device from the The mobile terminal is switched to the car-machine terminal; the mobile terminal reduces the volume of the audio information in the first application.

This implementation method solves the problem of how to allocate the audio focus when the car-machine terminal that forms a distributed operating system with the mobile terminal initiates a request for the audio focus during the process of using the audio focus by the mobile terminal, and helps to ensure that the user does not Miss audio information on mobile terminals.

In some possible implementations, the method further includes: the mobile terminal receiving a second instruction input by the user, the second instruction being used to request to stop playing the audio information in the first application; the mobile terminal Stop sending the audio information in the first application to the vehicle-machine terminal.

In some possible implementations, the method further includes: the mobile terminal sending an audio focus release request to the vehicle-machine terminal, where the audio focus release request is used to indicate that the vehicle-machine terminal has released the mobile terminal The audio focus of the sound device.

This implementation enables the car-machine terminal to know that the mobile terminal no longer needs to occupy the audio focus, so that when the application on the car-machine terminal requests the audio focus, it does not need to request the mobile terminal to change the audio focus, which can save communication resources for the application. Audio focus.

In some possible implementation manners, the method further includes: the mobile terminal receiving audio focus change request information from the vehicle-machine terminal, where the audio focus change request information is used to request that the audio focus of the audio device Switching from the mobile terminal to the vehicle-machine terminal; the mobile terminal stops sending the audio information in the first application to the vehicle-machine terminal.

In this implementation, when the vehicle-machine terminal requests the audio focus, the mobile terminal stops occupying the audio focus, so that the vehicle-machine terminal can occupy the audio focus, thereby solving the problem of forming a distribution with the mobile terminal during the process of using the audio focus. How to allocate the audio focus when the vehicle-machine terminal of the system-based operating system initiates a request for the audio focus. Moreover, the mobile terminal stops playing audio information, compared with the mobile terminal reducing the volume, it can save communication resources between the mobile terminal and the vehicle-machine terminal and save power consumption of the mobile terminal.

In a second aspect, the present application provides a method for controlling audio focus. The method includes: the car-machine terminal receives audio focus request information from a mobile terminal, the audio focus request information is used to request the audio focus of the audio equipment on the car-machine terminal, the operating system of the mobile terminal is connected to the The operating system of the vehicle-machine terminal constitutes a distributed operating system; the vehicle-machine terminal sends audio focus request response information to the mobile terminal, and the audio focus request response information is used to indicate whether the mobile terminal successfully requests the audio device audio focus of the audio device; when the mobile terminal successfully requests the audio focus of the audio device, the car-machine terminal receives audio information from the first application of the mobile terminal; The device plays the audio information in the first application.

In this implementation, when the mobile terminal requests the audio focus, the car-machine terminal stops occupying the audio focus and allows the mobile terminal to occupy the audio focus, thus solving the problem of forming a distribution with the car-machine terminal when the car-machine terminal uses the audio focus. How to allocate the audio focus when a mobile terminal with a mobile operating system with a standard operating system initiates a request for the audio focus.

In some implementation manners, before the car-machine terminal plays the audio information in the first application through the audio device, the car-machine terminal plays the audio information on the car-machine terminal through the audio device.

The car-machine terminal stops playing audio information, which can save the power consumption of the car-machine terminal compared with reducing the volume of the car-machine terminal.

In some implementations, before the car-machine terminal plays the audio information in the first application through the audio equipment, the operating system of the mobile terminal and the operating system of the car-machine system form a distributed operation this time. After the system, the vehicle-machine terminal has never played audio information through the audio equipment.

In some implementations, before the car-machine terminal plays the audio information in the first application through the audio device, the car-machine terminal plays the audio information in the second application on the car-machine terminal through the audio device. audio information.

The method further includes: the car-machine terminal reducing the volume of the audio information in the second application.

This implementation method can not only solve the problem of how to allocate the audio focus when the mobile terminal that forms a distributed operating system with the vehicle-machine terminal initiates a request for the audio focus during the process of using the audio focus of the vehicle-machine terminal, but also helps to ensure that the user Do not miss the audio information on the car terminal.

In some implementations, before the car-machine terminal plays the audio information in the first application through the audio device, the car-machine terminal plays the audio information in the second application on the car-machine terminal through the audio device. audio information. The method further includes: the vehicle-machine terminal stops playing the audio information in the second application. This method can save the functions of the car-machine terminal.

In some implementations, the method further includes: the in-vehicle terminal receiving a third instruction input by a user, the third instruction being used to request to play audio information in a third application on the in-vehicle terminal; The vehicle-machine terminal sends audio focus change request information to the mobile terminal, and the audio focus change request information is used to request to change the audio focus of the audio device from the mobile terminal to the vehicle-machine terminal; The mobile terminal plays the audio information in the third application through the audio equipment.

In a third aspect, the present application provides a mobile terminal, including: one or more processors, one or more memories; the one or more memories are coupled to the one or more processors, and the one or more A plurality of memories are used to store computer program codes, and the computer program codes include computer instructions. When the one or more processors execute the computer instructions, the mobile terminal executes any one of the first aspect and the first aspect. A control method provided by a possible implementation manner.

In a fourth aspect, the present application provides an in-vehicle terminal, including: one or more processors, one or more memories; the one or more memories are coupled to the one or more processors, and the one or more or a plurality of memories are used to store computer program codes, the computer program codes include computer instructions, and when the one or more processors execute the computer instructions, the mobile terminal executes any of the second aspect and the second aspect. A control method provided in a possible implementation manner.

In a fifth aspect, the present application provides a computer storage medium, including computer instructions. When the computer instructions are run on a mobile terminal, the mobile terminal is made to perform any possible implementation of the first aspect and the first aspect. The control method provided by the method.

In the sixth aspect, the present application provides a computer storage medium, including computer instructions. When the computer instructions are run on the vehicle-machine terminal, the vehicle-machine terminal can be executed according to any one of the second aspect and the second aspect. The control method provided by the embodiment.

In a seventh aspect, the present application provides a computer program product, the computer program product includes computer program code, and it is characterized in that, when the computer program code is run on a computer, the computer implements the first aspect, the first The control method provided in any possible implementation manner of the aspect.

In the eighth aspect, the present application provides a computer program product, the computer program product includes computer program code, and it is characterized in that, when the computer program code runs on the computer, the computer realizes the second aspect, the second The control method provided in any possible implementation manner of the aspect.

Description of drawings

FIG. 1 is a schematic diagram of an audio focus control system according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a software structure of an electronic device according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a software structure of an electronic device according to another embodiment of the present application;

FIG. 5 is an exemplary flow chart of an audio focus control method according to an embodiment of the present application;

FIG. 6 is an exemplary flow chart of an audio focus control method according to another embodiment of the present application;

FIG. 7 is an exemplary flowchart of an audio focus control method according to another embodiment of the present application;

FIG. 8 is a schematic structural diagram of an audio focus control device provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of an audio focus control device provided in another embodiment of the present application;

FIG. 10 is a schematic structural diagram of an audio focus control device provided by another embodiment of the present application.

Detailed ways

FIG. 1 is a schematic diagram of an audio focus control system according to an embodiment of the present application. As shown in FIG. 1 , the system includes a mobile terminal 110 and a vehicle-machine terminal 120 .

The operating system on the mobile terminal 110 and the operating system on the vehicle-machine terminal 120 constitute a distributed operating system. Distributed operating systems (distributed operating systems) are part of distributed software systems and need to be installed in the entire distributed system. They are mainly responsible for managing distributed processing system resources and controlling the operation of distributed programs. It is similar to centralized Operating systems differ in terms of resource management, process communication, and system architecture. The basic functions of a distributed operating system include: providing a powerful means of communication so that processes running on different computers can exchange data through communication; providing the function of accessing resources on other computers so that users can access resources on other computers; A programming language that enables users to write distributed programs that can run in parallel on multiple nodes in the system; efficient control and network resource management are transparent to users.

The mobile terminal 110 in this application may include electronic devices that users can carry with them, such as mobile phones, foldable electronic devices, tablet computers, desktop computers, laptop computers, handheld computers, notebook computers, super mobile personal computers ( ultra-mobile personal computer (UMPC), netbook, cellular phone, personal digital assistant (PDA), augmented reality (augmented reality, AR) device, virtual reality (virtual reality, VR) device, artificial intelligence (artificial intelligence) , AI) equipment, at least one of wearable equipment. The embodiment of the present application does not specifically limit the specific type of the mobile terminal 110 .

The vehicle-machine terminal 120 in this embodiment may include electronic equipment deployed on the vehicle. The embodiment of the present application does not specifically limit the specific type of the vehicle-machine terminal 120 .

FIG. 2 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application. A schematic hardware structure of the mobile terminal 110 or the vehicle-machine terminal 120 may be shown in FIG. 2 .

The electronic device 100 may include a processor 110, an internal memory 121, a USB connector 130, a power management module 141, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio device 170, a display screen 194, and the like.

It can be understood that, the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the electronic device 100 . In other embodiments of the present application, the electronic device 100 may include more or fewer components than shown in the figure, or combine certain components, or separate certain components, or arrange different components. The illustrated components can be realized in hardware, software or a combination of software and hardware.

The processor 110 may include one or more processing units, for example: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processing unit (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural network processor (neural-network processing unit, NPU), etc. Wherein, different processing units may be independent devices, or may be integrated in one or more processors.

The processor can generate an operation control signal according to the instruction opcode and the timing signal, and complete the control of fetching and executing the instruction.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in processor 110 may be a cache memory. The memory may store instructions or data used by the processor 110 or used frequently. If the processor 110 needs to use the instruction or data, it can be called directly from the memory. Repeated access is avoided, and the waiting time of the processor 110 is reduced, thereby improving the efficiency of the system.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous transmitter (universal asynchronous receiver/transmitter, UART) interface, mobile industry processor interface (mobile industry processor interface, MIPI), general-purpose input and output (general-purpose input/output, GPIO) interface, subscriber identity module (subscriber identity module, SIM) interface, and /or universal serial bus (universal serial bus, USB) interface, etc. The processor 110 may be connected to modules such as a touch sensor, an audio module, a wireless communication module, a display, and a camera through at least one of the above interfaces.

It can be understood that the interface connection relationship between the modules shown in the embodiment of the present application is only a schematic illustration, and does not constitute a structural limitation of the electronic device 100 . In other embodiments of the present application, the electronic device 100 may also adopt different interface connection manners in the foregoing embodiments, or a combination of multiple interface connection manners.

The USB connector 130 is an interface conforming to the USB standard specification, and can be used to connect the electronic device 100 and peripheral devices, specifically, it can be a Mini USB connector, a Micro USB connector, a USB Type C connector, and the like. The USB connector 130 can be used to connect to a charger to charge the electronic device 100 , and can also be used to connect to other electronic devices to transfer data between the electronic device 100 and other electronic devices. It can also be used to connect headphones to output audio stored in electronic devices through the headphones. This connector can also be used to connect other electronic devices, such as VR devices, etc. In some embodiments, the standard specifications of the Universal Serial Bus may be USB1.x, USB2.0, USB3.x and USB4.

The power management module 141 is used for connecting the power supply and the processor 110 . The power management module 141 receives power input (such as an internal battery or an external power supply), and supplies power to the processor 110, the internal memory 121, the display screen 194, the mobile communication module 150, the wireless communication module 160, and the like.

The power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle times, and battery health status (leakage, impedance). In some other embodiments, the power management module 141 may also be disposed in the processor 110 .

The wireless communication function of the electronic device 100 may be realized by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in electronic device 100 may be used to cover single or multiple communication frequency bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: Antenna 1 can be multiplexed as the diversity antenna of the WLAN. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 can provide wireless communication solutions including 2G/3G/4G/5G applied on the electronic device 100 . The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA) and the like.

The mobile communication module 150 can receive electromagnetic waves through the antenna 1, filter and amplify the received electromagnetic waves, and send them to the modem processor for demodulation. The mobile communication module 150 can also amplify the signals modulated by the modem processor, and convert them into electromagnetic waves through the antenna 1 for radiation. In some embodiments, at least part of the functional modules of the mobile communication module 150 may be set in the processor 110 . In some embodiments, at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be set in the same device.

A modem processor may include a modulator and a demodulator. Wherein, the modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low frequency baseband signal. Then the demodulator sends the demodulated low-frequency baseband signal to the baseband processor for processing. The low-frequency baseband signal is passed to the application processor after being processed by the baseband processor. The application processor displays images or videos through the display screen 194 . In some embodiments, the modem processor may be a stand-alone device. In some other embodiments, the modem processor may be independent from the processor 110, and be set in the same device as the mobile communication module 150 or other functional modules.

The wireless communication module 160 can provide applications on the electronic device 100 including wireless local area networks (wireless local area networks, WLAN) (such as wireless fidelity (wireless fidelity, Wi-Fi) network), bluetooth (bluetooth, BT), bluetooth low power consumption (bluetooth low energy, BLE), ultra wide band (UWB), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency-modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The wireless communication module 160 can also receive the signal to be sent from the processor 110 , frequency-modulate it, amplify it, and convert it into electromagnetic waves through the antenna 2 for radiation.

In some embodiments, the antenna 1 of the electronic device 100 is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the electronic device 100 can communicate with the network and other electronic devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), wideband code wideband code division multiple access (WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC, FM, and/or IR technology, etc. The GNSS can include global positioning system (global positioning system, GPS), global navigation satellite system (global navigation satellite system, GLONASS), Beidou satellite navigation system (beidou navigation satellite system, BDS), quasi-zenith satellite system (quasi- zenith satellite system (QZSS) and/or satellite based augmentation systems (SBAS).

The electronic device 100 may implement a display function through a GPU, a display screen 194, an application processor, and the like. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and the application processor. GPUs are used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute program instructions to generate or change display information.

The display screen 194 is used to display images, videos and the like. The display screen 194 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active matrix organic light emitting diode or an active matrix organic light emitting diode (active-matrix organic light emitting diode, AMOLED), flexible light-emitting diode (flex light-emitting diode, FLED), micro light-emitting diode (micro light emitting diode, Micro LED), micro organic light-emitting diode (micro organic light-emitting diode, Micro OLED), quantum Quantum dot light emitting diodes (QLED), etc. In some embodiments, the electronic device 100 may include one or more display screens 194 .

The internal memory 121 may be used to store computer-executable program codes including instructions. The internal memory 121 may include an area for storing programs and an area for storing data. Wherein, the stored program area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.) and the like. The storage data area can store data created during the use of the electronic device 100 (such as audio data, phonebook, etc.) and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash storage (universal flash storage, UFS) and the like. The processor 110 executes various functional methods or data processing of the electronic device 100 by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

As an example, the processor 110 of the electronic device 100 of this embodiment may download the integrated icon update SDK from the application market through the mobile communication module 150 and the antenna 1, or through the wireless communication module 160 and the antenna 2, or through the USB connector 130. application program, and call the icon update SDK in the application program through the mobile communication module 150 and antenna 1, or through the wireless communication module 160 and antenna 2, or interact with the application icon management platform through the USB connector 130 to complete the update of the application icon Update or replace, and then display the updated application icon through the display.

The software system of the electronic device 100 may adopt a layered architecture, an event-driven architecture, a micro-kernel architecture, a micro-service architecture, or a cloud architecture. In this embodiment of the present application, a system with a layered architecture is taken as an example, and a software structure of the electronic device 100 is exemplarily described with reference to FIG. 3 . For example, when the software system of the electronic device 100 is an Android system with a layered architecture, its software structure diagram is shown in FIG. 3 .

The layered architecture divides the software into several layers, and each layer has a clear role and division of labor. Layers communicate through software interfaces. In some embodiments, the Android system is divided into five layers, which are application program layer, application program framework layer, Android runtime (android runtime, ART) and native C/C++ library, hardware abstraction layer (hardware) from top to bottom. abstract layer, HAL) and the kernel layer.

The application layer can consist of a series of application packages. As shown in FIG. 3 , the application package may include application programs such as camera, gallery, calendar, call, map, navigation, WLAN, Bluetooth, music, video, and short message.

The application framework layer provides an application programming interface (application programming interface, API) and a programming framework for applications in the application layer. The application framework layer includes some predefined functions.

As shown in Figure 3, the application framework layer may include window managers, content providers, view systems, resource managers, notification managers, activity managers, input managers, and so on.

The window manager provides a window management service (window manager service, WMS), and WMS can be used for window management, window animation management, surface management, and as a transfer station for input systems.

Content providers are used to store and retrieve data and make it accessible to applications. This data can include videos, images, audio, calls made and received, browsing history and bookmarks, phonebook, etc.

The view system includes visual controls, such as controls for displaying text, controls for displaying pictures, and so on. The view system can be used to build applications. A display interface can consist of one or more views. For example, a display interface including a text message notification icon may include a view for displaying text and a view for displaying pictures.

The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and so on.

The notification manager enables the application to display notification information in the status bar, which can be used to convey notification-type messages, and can automatically disappear after a short stay without user interaction. For example, the notification manager is used to notify the download completion, message reminder, etc. The notification manager can also be a notification that appears on the top status bar of the system in the form of a chart or scroll bar text, such as a notification of an application running in the background, or a notification that appears on the screen in the form of a dialog window. For example, prompting text information in the status bar, issuing a prompt sound, vibrating the electronic device, and flashing the indicator light, etc.

The activity manager can provide activity management service (activity manager service, AMS), AMS can be used for system components (such as activities, services, content providers, broadcast receivers) start, switch, schedule, and manage and schedule application processes .

The input manager can provide an input management service (input manager service, IMS), and the IMS can be used to manage system input, such as touch screen input, key input, sensor input, and the like. IMS fetches events from input device nodes, and distributes events to appropriate windows through interaction with WMS.

The Android runtime includes the core library and the Android runtime. The Android runtime is responsible for converting source code into machine code. The Android runtime mainly includes the use of ahead of time (ahead or time, AOT) compilation technology and just in time (just in time, JIT) compilation technology.

The core library is mainly used to provide basic Java class library functions, such as basic data structure, mathematics, IO, tools, database, network and other libraries. The core library provides APIs for users to develop Android applications.

A native C/C++ library can include multiple functional modules. For example: surface manager (surface manager), media framework (media framework), libc, OpenGL ES, SQLite, Webkit, etc.

Among them, the surface manager is used to manage the display subsystem, and provides the fusion of 2D and 3D layers for multiple applications. The media framework supports playback and recording of various commonly used audio and video formats, as well as still image files. The media library can support multiple audio and video coding formats, such as: moving picture experts group (moving picture experts group, MPEG) 4, H.264, MP3, advanced audio coding (advanced audio coding, AAC), adaptive multi-bit rate ( adaptive multi-rate, AMR), JPG, portable network graphic format (portable network graphic format, PNG), etc. OpenGL ES provides the drawing and manipulation of 2D graphics and 3D graphics in applications. SQLite provides a lightweight relational database for applications of the electronic device 100 .

The hardware abstraction layer runs in user space, encapsulates the kernel layer driver, and provides a call interface to the upper layer. The hardware abstraction layer includes at least a display module, a camera module, an audio module, and a sensor module.

The kernel layer is the layer between hardware and software. The kernel layer includes at least a display driver, a camera driver, an audio driver, and a sensor driver.

Optionally, as shown in FIG. 4, in the embodiment of the present application, in addition to the structure shown in FIG. 3, the mobile terminal 110 can also include a vehicle-machine application focus agent and an audio manager (audio manager); In addition to the structure shown in FIG. 3 , the mobile terminal 120 can also include a mobile phone application focus agent, an audio manager, and a southbound interface at its framework layer. The southbound interface includes a standard interface for invoking audio devices.

The audio manager can be used to implement one or more of the following functions: store custom audio configurations; rename, edit and delete audio configurations; create desktop shortcuts for audio configurations; support more than one language; automatic recovery and update functions; The volume is displayed via the display panel.

Optionally, as shown in FIG. 4 , the mobile terminal 110 of the present application may also include a smart car application, and the vehicle-machine terminal 120 may also include a smart car application. As an example, a smart car application could be

"HiCar" application.

The smart car application has one or more of the following functions: project the application on the mobile terminal to the central control screen of the car-machine terminal for use; through the connection between the mobile terminal and the car-machine terminal, build The mutual assistance resource pool of mobile terminals and car-machine terminals extends the service ecology of mobile terminals to car-machine terminals, and realizes the optimal experience of "mobile terminal + car-machine terminal" human-computer interaction.

For example, when the car-machine terminal plays songs through audio equipment, and the mobile terminal plays songs through the audio device on the mobile terminal, the smart car application can automatically and seamlessly switch to the car-machine terminal for playback; system, GPS) signal is weak, the smart car application can superimpose the GPS signal of the vehicle/mobile phone to make the positioning more accurate; after parking, the external camera of the vehicle will automatically take pictures and record the parking space and other functions.

For the system architecture shown in FIG. 1 , the present application proposes an audio focus control method. In this method, multiple operating system devices are regarded as a whole, an audio focus is maintained globally, and an application focus agent is deployed in each operating system to provide distributed audio management capabilities and a management interface for distributed audio focus. When the application After applying for and releasing the audio focus, application developers do not need to deal with the conflict of audio focus between individual operating systems in the distributed operating system, which can be handled by the distributed operating system, which greatly simplifies the distributed operating system The difficulty of audio focus processing, the system solves the focus experience of distributed scene audio.

In the control method provided by the present application, when the vehicle-machine terminal occupies the audio equipment to play audio information, when the mobile terminal that has not played audio information before requests the audio focus of the audio equipment to play the audio information on the mobile terminal, or when The mobile terminal requests that the audio focus of the audio device be switched from one application on the mobile terminal to another application, that is, when switching from playing audio information in one application to playing audio information in another application, the mobile terminal sends audio to the car-machine terminal The focus request information is used to request the audio focus of the audio equipment on the vehicle-mounted terminal, wherein the operating system of the mobile terminal and the operating system of the vehicle-mounted terminal have constituted a distributed operating system.

After receiving the audio focus request information from the mobile terminal, the vehicle-machine terminal provides the audio focus to the mobile terminal. For example, the car-machine terminal may send audio focus request response information to the mobile terminal, and the mobile terminal receives the audio focus request response information sent by the car-machine terminal. The audio focus request response information is used to indicate whether the mobile terminal successfully requests the audio focus of the audio device. .

When the mobile terminal successfully requests the audio focus of the audio device, the mobile terminal sends the audio information in the application to the vehicle-machine terminal, so that the audio device can play the audio information in the application. When the mobile terminal fails to request the audio focus of the audio device, the mobile terminal may record the application log and application result, and discard the audio information to be played.

Optionally, after the car-machine terminal hands over the audio focus to the mobile terminal, the car-machine terminal may lower the volume of the played audio information or may stop playing the audio information.

Optionally, before the mobile terminal sends the audio focus request information to the vehicle-machine terminal, the vehicle-machine terminal may also be in a state of not occupying the audio focus, that is, in a state of not playing audio information.

Optionally, when the mobile terminal stops playing the audio information, for example, when the user inputs an instruction to instruct the mobile terminal to stop playing the audio information, the mobile terminal can release the audio focus and notify the vehicle terminal that "the mobile terminal has released the audio focus". After receiving the information indicating that the mobile terminal has released the audio focus, the car-machine terminal may request the audio focus, and continue to play the previously paused audio information or restore the volume of the previously played audio information.

In the technical solution proposed by this application, when the mobile terminal occupies the audio focus of the audio equipment to play audio information, and the car-machine terminal requests the audio focus to play the audio information in the application on the car-machine terminal, the car-machine terminal can move to the The terminal sends audio focus change request information, and the mobile terminal receives the audio focus change request information from the car-machine terminal. The audio focus change request message is used to request to change the audio focus of the audio device from the mobile terminal to the car-machine terminal.

After the car-machine terminal requests the audio focus, the audio information in the application on the car-machine terminal can be played through the audio equipment. Moreover, after the mobile terminal receives the audio focus change request information, it can reduce the volume of the audio information in the application on the mobile terminal or stop playing the audio information, so that the car-machine terminal can use the audio focus.

Optionally, the car-machine terminal stops playing audio information, for example, when the user inputs an instruction to instruct the car-machine terminal to stop playing audio information, the car-machine terminal can release the audio focus and notify the mobile terminal that "the car-machine terminal has released the audio focus". After receiving the information indicating that the vehicle-machine terminal has released the audio focus, the mobile terminal can request the audio focus, and continue to play the previously paused audio information or restore the volume of the previously played audio information.

In the technical solution provided by this application, when the mobile terminal and the car-machine terminal form a distributed operating system, the status of the audio focus applied or released by the mobile terminal will be synchronized to the car-machine terminal. The state of the audio focus will also be synchronized to the mobile phone, and when the mobile terminal and the car terminal play music at the same time, it can be determined which terminal occupies the audio focus to play the audio based on the type of terminal requesting the audio focus and/or the order in which the audio focus is requested , so as to avoid the problem of audio focus occupation conflict.

In the following, an audio focus control method according to an embodiment of the present application will be introduced by taking a mobile terminal playing or switching an audio application during the application playing process of the car-machine terminal as an example, and referring to FIG. 5 . As shown in Fig. 5, the method includes S501 to S518.

S501, the user starts the "HiCar" application on the mobile phone terminal.

S502. The vehicle-machine application focus agent registers the audio focus listener with the audio manager of the mobile terminal.

Among them, the car-machine application focus agent is deployed in the "HiCar" application. When the "HiCar" application is started, the car-machine application focus agent registers an audio focus monitor with the audio manager to monitor changes in the audio focus of the mobile terminal.

S503, the user starts the mobile phone application.

S504. The mobile application sends an audio focus request to the audio manager of the mobile terminal.

S505. The audio manager of the mobile terminal returns an audio focus request response to the mobile application.

Wherein, the audio focus request response includes request success or request failure.

S506. The on-board application focus agent detects that the audio focus has changed, and determines whether to apply for the audio focus.

If the audio focus has not been applied for before or the focus type changes, step S507 is executed.

If the audio focus has been applied for before or the focus type has not changed, the following steps will not be performed.

S507. The vehicle-machine application focus agent sends an audio focus request to the mobile phone application focus agent.

S508, the mobile phone application focus agent calls the standard interface provided by the third-party manufacturer to send an audio focus request to the audio manager of the car terminal, and the agent applies for the audio focus.

S509, the in-vehicle application is playing.

S510. The audio manager of the car-machine terminal sends an audio focus change notification to the car-machine application.

S511, the in-car application pauses playback or lowers the volume.

S512. The audio manager of the car-machine terminal invokes the standard interface provided by the third-party manufacturer to return an audio focus request result response to the mobile phone application focus agent.

S513. The mobile phone application focus agent returns an audio focus request result to the car-machine application focus agent, and the car-machine application focus agent records the request result.

S514. The mobile phone application outputs the audio stream to the car machine application focus agent.

The in-vehicle application focus agent receives the application audio stream and processes it according to the result of the focus application. If the application is successful, execute S516; if the application fails, execute S515.

S515. The car machine application focus agent discards the audio and prints a log.

S516. The car machine application focus agent transmits the audio stream to the mobile phone application focus agent.

S517, the mobile phone application focus agent calls the standard interface provided by the third-party manufacturer to play the audio.

S518, the mobile phone application focus agent outputs audio through the car audio device.

In the following, an audio focus control method according to another embodiment of the present application will be introduced with reference to FIG. 6 by taking the car-machine terminal playing or switching audio applications during the application playing process of the mobile terminal as an example. As shown in FIG. 6, the method includes S601 to S628.

S601, the user starts the "HiCar" application of the mobile terminal.

S602. The in-vehicle application focus agent registers the audio focus listener with the audio manager of the mobile terminal.

S603, the user starts the "HiCar" application of the car-machine terminal.

S604, the mobile phone application focus agent calls the standard interface provided by the third-party manufacturer to register the audio focus listener with the audio manager of the car terminal.

S605. The user starts the mobile phone application.

S606. The mobile application sends an audio focus request to the audio manager of the mobile terminal.

S607. The audio manager of the mobile terminal returns an audio focus request response to the mobile application.

S608. The on-board application focus agent detects that the audio focus has changed, and determines whether to apply for the audio focus.

If the audio focus has not been applied for before or the focus type changes, step S609 is executed.

S609. The vehicle-machine application focus agent sends an audio focus request to the mobile phone application focus agent.

S610, the mobile phone application focus agent invokes the standard interface provided by the third-party manufacturer to send an audio focus request to the audio manager of the car terminal, and the agent applies for the audio focus.

S611. The audio manager of the car-machine terminal invokes the standard interface provided by the third-party manufacturer to return an audio focus request result response to the mobile phone application focus agent.

S612, the mobile phone application focus agent returns the audio focus application result to the car machine application focus agent, and the car machine application focus agent records the application result.

S613. The mobile phone application outputs the audio stream to the car machine application focus agent.

The in-vehicle application focus agent receives the application audio stream and processes it according to the focus application result. If the application is successful, execute S614, and if the application fails, execute S615.

S614. The car machine application focus agent discards the audio and prints a log.

S615. The car machine application focus agent transmits the audio stream to the mobile phone application focus agent.

S616. The mobile phone application focus agent calls the standard interface provided by the third-party manufacturer to play the audio.

S617, output audio through the car audio equipment.

S618, the user starts the car-machine application of the car-machine terminal.

S619, the car-machine application sends an audio focus request to the audio manager of the car-machine terminal.

S620, the audio manager of the car-machine terminal returns an audio focus request response to the car-machine application.

S621. The audio manager of the car-machine terminal notifies the mobile phone application focus agent that the audio focus has changed by invoking the standard interface provided by the third-party manufacturer.

S622. The mobile phone application focus agent forwards the audio focus change event to the car machine application focus agent.

S623, the vehicle-machine application focus agent applies for the audio focus to the audio manager of the mobile terminal.

S624. The audio manager of the mobile terminal returns an audio focus application result to the car machine application focus agent.

If the focus application is successful, execute S626, and if the application fails, execute S625.

S625. The in-vehicle application focus agent records a log.

S626. The audio manager of the mobile terminal sends an audio focus change notification to the mobile application.

S627, the mobile phone application stops playing or lowers the volume.

S628, the in-vehicle application outputs audio through the in-vehicle audio device.

Taking the user actively stopping the mobile phone terminal application as an example, the audio focus control method according to another embodiment of the present application will be introduced with reference to FIG. 7 . As shown in FIG. 7, the method includes S701 to S713.

S701, the user starts the "HiCar" application of the mobile terminal.

S702. The vehicle-machine application focus agent registers the audio focus listener with the audio manager of the mobile terminal.

S703, the user actively stops the mobile phone application.

S704. The mobile application applies to the audio manager of the mobile terminal for releasing the audio focus.

S705. The audio manager of the mobile terminal returns a response of releasing the audio focus to the mobile application.

S706. The audio manager of the mobile terminal sends an audio focus release notification to the car-machine application focus agent.

S707. The vehicle-machine application focus agent sends a request for releasing the audio focus to the mobile phone application focus agent.

S708, the mobile phone application focus agent calls the standard interface provided by the third-party manufacturer to send a request for releasing the audio focus to the audio manager of the car-machine terminal.

S709, the audio manager of the car-machine terminal invokes the standard interface provided by the third-party manufacturer to return an audio focus request response to the mobile phone application focus agent.

S710, the mobile phone application focus proxy returns an audio focus request response to the vehicle-machine application focus proxy.

Wherein, the audio focus request response can be success or failure.

If the request fails, execute S711.

S711. The in-vehicle application focus agent records an audio focus application result through a log.

S712. The audio manager of the car-machine terminal sends an audio focus change notification to the car-machine application.

S713, the in-vehicle application resumes playing or increases the volume.

Fig. 8 is a schematic structural diagram of an audio focus control device provided by an embodiment of the present application. The apparatus shown in FIG. 8 may be used to execute the method described in any one of FIG. 5 or FIG. 6 or FIG. 7 . As shown in FIG. 8 , the apparatus 800 for controlling audio focus in this embodiment may include: a receiving module 801 and a sending module 802 .

For example, the receiving module 801 may be configured to perform functions related to receiving in any of the methods described in FIG. 5 or FIG. 6 or FIG. 7 .

For example, the sending module 802 may be configured to execute functions related to sending in any of the methods described in FIG. 5 or FIG. 6 or FIG. 7 .

Optionally, the device 800 may further include a volume down module, so as to implement related functions in the method shown in FIG. 5 or FIG. 6 or FIG. 7 . For example, the volume reduction module can be used to implement functions related to volume reduction in any of the methods described in Figure 5 or Figure 6 or Figure 7 .

FIG. 9 is a schematic structural diagram of an audio focus control device provided by another embodiment of the present application. The device shown in FIG. 9 may be used to execute the method described in any one of FIG. 5 or FIG. 6 or FIG. 7 . As shown in FIG. 9 , the apparatus 1000 for controlling audio focus in this embodiment may include: a receiving module 901 , a sending module 902 , and a playing module 903 .

For example, the receiving module 901 may be configured to perform functions related to receiving in any of the methods described in FIG. 5 or FIG. 6 or FIG. 7 .

For example, the sending module 902 may be configured to execute functions related to sending in any of the methods described in FIG. 5 or FIG. 6 or FIG. 7 .

For example, the playing module 903 may be configured to perform functions related to playing audio information in any of the methods described in FIG. 5 or 6 or 7 .

Optionally, the device 900 may further include a volume down module, so as to implement related functions in the method shown in FIG. 5 or FIG. 6 or FIG. 7 . For example, the volume reduction module may be used to implement functions related to volume reduction in any one of the methods described in FIG. 5 or FIG. 6 or FIG. 7 .

Optionally, the apparatus 900 may further include a playback stop module, so as to realize related functions in the method shown in FIG. 5 or FIG. 6 or FIG. 7 . For example, the playback stop module may be used to implement functions related to playback stop in any of the methods described in FIG. 5 or FIG. 6 or FIG. 7 .

FIG. 10 is a schematic structural diagram of an audio focus control device provided by another embodiment of the present application. The device shown in FIG. 10 may be used to implement the audio focus control method described in any one of the foregoing embodiments.

As shown in FIG. 10 , the apparatus 1000 of this embodiment includes: a memory 1001 , a processor 1002 , a communication interface 1003 and a bus 1004 . Wherein, the memory 1001 , the processor 1002 , and the communication interface 1003 are connected to each other through a bus 1004 .

The memory 1001 may be a read only memory (read only memory, ROM), a static storage device, a dynamic storage device or a random access memory (random access memory, RAM). The memory 1001 may store a program, and when the program stored in the memory 1001 is executed by the processor 1002, the processor 1002 is configured to execute each step of the method described in any one of FIG. 5 or FIG. 6 or FIG. 7 .

The processor 1002 may adopt a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application specific integrated circuit (application specific integrated circuit, ASIC), or one or more integrated circuits, for executing related programs to The audio focus control method of the method embodiment of the present application is implemented.

The processor 1002 may also be an integrated circuit chip with signal processing capability. During implementation, each step of the method for controlling the audio focus in the embodiment of the present application may be implemented by an integrated logic circuit of hardware in the processor 1002 or instructions in the form of software.

The above-mentioned processor 1002 can also be a general-purpose processor, a digital signal processor (digital signal processing, DSP), an application-specific integrated circuit (ASIC), a ready-made programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, Discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 1001, and the processor 1002 reads the information in the memory 1001, and combines its hardware to complete the functions required to be performed by the units included in the audio focus control device of this application, for example, it can execute Figure 5 or Figure 6 or Figure 7 Individual steps/functions of any of the illustrated embodiments.

The communication interface 1003 may use, but is not limited to, a transceiver device such as a transceiver to implement communication between the device 1000 and other devices or communication networks.

The bus 1004 may include a pathway for transferring information between various components of the apparatus 1000 (eg, the memory 1001, the processor 1002, the communication interface 1003).

It should be understood that the apparatus 1000 shown in the embodiment of the present application may be an electronic device, or may also be a chip configured in the electronic device.

The above-mentioned embodiments may be implemented in whole or in part by software, hardware, firmware or other arbitrary combinations. When implemented using software, the above-described embodiments may be implemented in whole or in part in the form of computer program products. The computer program product comprises one or more computer instructions or computer programs. When the computer instruction or computer program is loaded or executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center that includes one or more sets of available media. The available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media. The semiconductor medium may be a solid state drive.

It should be understood that the term "and/or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and/or B may mean: A exists alone, and A and B exist at the same time , there are three cases of B alone, where A and B can be singular or plural. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship, but it may also indicate an "and/or" relationship, which can be understood by referring to the context.

In this application, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (piece) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple .

It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk.

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

A control method for audio focus, characterized in that the method comprises:

The mobile terminal receives a first instruction input by a user, and the first instruction is used to request to play audio information in a first application in the mobile terminal;

The mobile terminal sends audio focus request information to the car-machine terminal, the audio focus request information is used to request the audio focus of the audio equipment on the car-machine terminal, the operating system of the mobile terminal is connected with the car-machine terminal The operating system constitutes a distributed operating system;

The mobile terminal receives the audio focus request response information sent by the vehicle-machine terminal, and the audio focus request response information is used to indicate whether the mobile terminal successfully requests the audio focus of the audio device;

When the mobile terminal successfully requests the audio focus of the audio device, the mobile terminal sends the audio information in the first application to the vehicle-machine terminal.
The method according to claim 1, further comprising:

The mobile terminal receives audio focus change request information from the vehicle-machine terminal, the audio focus change request information is used to request to change the audio focus of the audio equipment from the mobile terminal to the vehicle-machine terminal;

The mobile terminal reduces the volume of the audio information in the first application.
The method according to claim 1 or 2, characterized in that the method further comprises:

The mobile terminal receives a second instruction input by the user, and the second instruction is used to request to stop playing the audio information in the first application;

The mobile terminal stops sending the audio information in the first application to the vehicle-machine terminal.
The method according to claim 3, further comprising:

The mobile terminal sends an audio focus release request to the vehicle-machine terminal, where the audio focus release request is used to indicate to the vehicle-machine terminal that the mobile terminal has released the audio focus of the audio device.
The method according to claim 1 or 2, characterized in that the method further comprises:

The mobile terminal receives audio focus change request information from the vehicle-machine terminal, the audio focus change request information is used to request to change the audio focus of the audio equipment from the mobile terminal to the vehicle-machine terminal;

The mobile terminal stops sending the audio information in the first application to the vehicle-machine terminal.
A control method for audio focus, characterized in that the method comprises:

The car-machine terminal receives audio focus request information from the mobile terminal, the audio focus request information is used to request the audio focus of the audio equipment on the car-machine terminal, the operating system of the mobile terminal is related to the operation of the car-machine terminal The system constitutes a distributed operating system;

The vehicle-machine terminal sends audio focus request response information to the mobile terminal, and the audio focus request response information is used to indicate whether the mobile terminal successfully requests the audio focus of the audio device;

When the mobile terminal successfully requests the audio focus of the audio device, the vehicle-machine terminal receives audio information from the first application of the mobile terminal;

The vehicle-machine terminal plays the audio information in the first application through the audio equipment.
The method according to claim 6, characterized in that, before the car-machine terminal plays the audio information in the first application through the audio device, the car-machine terminal plays the car-machine terminal through the audio device audio information in the second application on the terminal;

The method also includes:

The car-machine terminal reduces the volume of the audio information in the second application.
The method according to claim 6, characterized in that, before the car-machine terminal plays the audio information in the first application through the audio device, the car-machine terminal plays the car-machine terminal through the audio device audio information in the second application on the terminal;

The method also includes:

The vehicle-machine terminal stops playing the audio information in the second application.
The method according to any one of claims 6 to 8, wherein the method further comprises:

The vehicle-machine terminal receives a third instruction input by the user, and the third instruction is used to request to play audio information in a third application on the vehicle-machine terminal;

The vehicle-machine terminal sends audio focus change request information to the mobile terminal, and the audio focus change request information is used to request to change the audio focus of the audio equipment from the mobile terminal to the vehicle-machine terminal;

The vehicle-machine terminal plays the audio information in the third application through the audio equipment.
An electronic device, characterized by comprising: one or more processors, one or more memories;

The one or more memories are coupled to the one or more processors, the one or more memories are used to store computer program codes, the computer program codes include computer instructions, when the one or more processors When executing the computer instructions, the electronic device executes the control method according to any one of claims 1-9.
A computer storage medium, characterized in that it includes computer instructions, and when the computer instructions are run on a terminal, the terminal executes the control method according to any one of claims 1 to 9.
A computer program product, the computer program product comprising computer program code, characterized in that, when the computer program code is run on a computer, the computer is made to realize the control described in any one of claims 1 to 9 method.
A program product, characterized in that the program product includes a computer program, the computer program is stored in a readable storage medium, and at least one processor of a communication device can read the computer program from the readable storage medium The at least one processor executes the computer program so that the communication device implements the method according to any one of claims 1-5 or the method according to any one of claims 6-9.