CN111757171A

CN111757171A - Display device and audio playing method

Info

Publication number: CN111757171A
Application number: CN202010630873.6A
Authority: CN
Inventors: 陈俊宁; 初德进
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2020-10-09

Abstract

The application provides a display device and an audio playing method, and the method can be used for decoding the played audio to obtain multi-channel data after a control instruction for playing the audio is obtained. And separating the surround sound data and the power amplifier sound data from the multichannel data, thereby sending the power amplifier sound data to the audio output interface, and sending the surround sound data to the sound playing device through the communicator. According to the method, the audio can be played in multiple directions respectively through the voice playing devices such as the WiFi loudspeaker box or the Bluetooth loudspeaker box and the like in cooperation with the audio output interface of the display equipment, and the sound surrounding effect in the front, back, left and right directions and the like is achieved, so that a better surrounding stereo effect is brought to a user.

Description

Display device and audio playing method

Technical Field

The application relates to the technical field of smart televisions, in particular to a display device and an audio playing method.

Background

The smart television is a television product which is based on an Internet application technology, has an open operating system and a chip, has an open application platform, can realize a bidirectional man-machine interaction function, integrates various functions such as audio and video, entertainment, data and the like, and is used for meeting diversified and personalized requirements of users. The smart television can be internally provided with a plurality of loudspeakers, and different sound channels of program audio are played through the loudspeakers to achieve the surround sound effect.

The speakers of the traditional smart television are all arranged on the television body, for example, the left and right sound channel speakers are arranged below the front side of the smart television, and the left and right stereo surround sound speakers are arranged on two sides of the television. If the smart television further comprises a woofer, the woofer is also arranged below the front side of the television; if the smart television further comprises a sky sound speaker, the sky sound speaker is arranged below the rear side of the television. The smart television can utilize a built-in stereo speaker handler to virtually surround the stereo effect.

It can be seen that, because the speakers such as surround sound of the conventional smart tv are disposed on the tv body, when the user watches the tv, the user can only make sound from the front of the user, but the speakers such as surround sound should be only behind the two sides of the user to really simulate the surround sound effect, so the surround sound effect restored by the conventional smart tv is poor.

Disclosure of Invention

The application provides a display device and an audio playing method, and aims to solve the problem that surround sound reproduced by a traditional smart television is poor in effect.

In one aspect, the present application provides a display device, comprising: display, communicator, audio output interface and controller. Wherein the display is configured to present an audio playback screen; the communicator is configured to establish a wireless connection with a sound playing device; the audio output interface is configured to play an audio signal.

The controller is configured to perform the following program steps:

acquiring a control instruction for playing audio;

responding to the control instruction, decoding the played audio to obtain multi-channel data;

separating surround sound data and power amplifier sound data from the multi-channel data;

and sending the power amplifier sound data to an audio output interface, and sending the surround sound data to the sound playing device through the communicator.

On the other hand, the present application further provides an audio playing method, including:

acquiring a control instruction for playing audio;

According to the technical scheme, the display device and the audio playing method can decode the played audio to obtain multi-channel data after the control instruction for playing the audio is obtained. And separating the surround sound data and the power amplifier sound data from the multichannel data, thereby sending the power amplifier sound data to the audio output interface, and sending the surround sound data to the sound playing device through the communicator. According to the method, the audio can be played in multiple directions respectively through the voice playing devices such as the WiFi loudspeaker box or the Bluetooth loudspeaker box and the like in cooperation with the audio output interface of the display equipment, and the sound surrounding effect in the front, back, left and right directions and the like is achieved, so that a better surrounding stereo effect is brought to a user.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of an operation scenario between a display device and a control apparatus in an embodiment of the present application;

fig. 2 is a block diagram of a hardware configuration of a display device in an embodiment of the present application;

fig. 3 is a block diagram of a hardware configuration of a control device in an embodiment of the present application;

FIG. 4 is a schematic diagram of a software configuration of a display device in an embodiment of the present application;

FIG. 5 is a schematic diagram of an icon control interface display of an application program of a display device in an embodiment of the present application;

fig. 6 is a layout diagram of a display device and a sound playing apparatus in an embodiment of the present application;

fig. 7 is a schematic flowchart illustrating an audio playing method according to an embodiment of the present application;

fig. 8 is a schematic flowchart illustrating a process of configuring a playback channel based on a WiFi network in an embodiment of the present application;

FIG. 9 is a schematic flow chart illustrating the configuration of the playback channels based on the Bluetooth connection in the embodiment of the present application;

FIG. 10 is a flowchart illustrating an audio synchronization process according to an embodiment of the present application;

fig. 11 is a schematic flow chart illustrating transmitting surround sound data according to azimuth information in the embodiment of the present application.

Detailed Description

Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the application, as recited in the claims.

All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments described herein without inventive step, are intended to be within the scope of the claims appended hereto. In addition, while the disclosure herein has been presented in terms of one or more exemplary examples, it should be appreciated that aspects of the disclosure may be implemented solely as a complete embodiment.

It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.

The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and are not necessarily intended to limit the order or sequence of any particular one, Unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.

The term "module," as used herein, refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.

The term "remote control" as used in this application refers to a component of an electronic device (such as the display device disclosed in this application) that is typically wirelessly controllable over a relatively short range of distances. Typically using infrared and/or Radio Frequency (RF) signals and/or bluetooth to connect with the electronic device, and may also include WiFi, wireless USB, bluetooth, motion sensor, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in the common remote control device with the user interface in the touch screen.

The term "gesture" as used in this application refers to a user's behavior through a change in hand shape or an action such as hand motion to convey a desired idea, action, purpose, or result.

The audio playing method provided by the application can be applied to the display device 200. The display device refers to a device with an interface display function, such as a smart television. It should be noted that the display device is not limited to the smart television, and may also be other devices with an interface display function, such as a mobile phone, a tablet computer, a notebook computer, and the like.

A scenario of a display device and a server according to an embodiment is exemplarily shown in fig. 1. As shown in fig. 1, a user may operate the display device 200 through the mobile terminal 300 and the control apparatus 100.

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, etc., and the display device 200 is controlled by wireless or other wired methods. The user may input a user command through a key on a remote controller, voice input, control panel input, etc. to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement the function of controlling the display device 200.

In some embodiments, mobile terminals, tablets, computers, laptops, and other smart devices may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device. The application, through configuration, may provide the user with various controls in an intuitive User Interface (UI) on a screen associated with the smart device.

In some embodiments, the mobile terminal 300 may install a software application with the display device 200 to implement connection communication through a network communication protocol for the purpose of one-to-one control operation and data communication. Such as: the mobile terminal 300 and the display device 200 can establish a control instruction protocol, synchronize a remote control keyboard to the mobile terminal 300, and control the display device 200 by controlling a user interface on the mobile terminal 300. The audio and video content displayed on the mobile terminal 300 can also be transmitted to the display device 200, so as to realize the synchronous display function.

As also shown in fig. 1, the display apparatus 200 also performs data communication with the server 400 through various communication means. The display device 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. Illustratively, the display device 200 receives software program updates, or accesses a remotely stored digital media library, by sending and receiving information, as well as Electronic Program Guide (EPG) interactions. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers. Other web service contents such as video on demand and advertisement services are provided through the server 400.

The display device 200 may be a liquid crystal display, an OLED display, a projection display device. The particular display device type, size, resolution, etc. are not limiting, and those skilled in the art will appreciate that the display device 200 may be modified in performance and configuration as desired.

The display apparatus 200 may additionally provide an intelligent network tv function of a computer support function including, but not limited to, a network tv, an intelligent tv, an Internet Protocol Tv (IPTV), and the like, in addition to the broadcast receiving tv function.

A hardware configuration block diagram of a display device 200 according to an exemplary embodiment is exemplarily shown in fig. 2.

In some embodiments, at least one of the controller 250, the tuner demodulator 210, the communicator 220, the detector 230, the input/output interface 255, the display 275, the audio output interface 285, the memory 260, the power supply 290, the user interface 265, and the external device interface 240 is included in the display apparatus 200.

In some embodiments, a display 275 receives image signals originating from the first processor output and displays video content and images and components of the menu manipulation interface.

In some embodiments, the display 275, includes a display screen assembly for presenting a picture, and a driving assembly that drives the display of an image.

In some embodiments, the video content is displayed from broadcast television content, or alternatively, from various broadcast signals that may be received via wired or wireless communication protocols. Alternatively, various image contents received from the network communication protocol and sent from the network server side can be displayed.

In some embodiments, the display 275 is used to present a user-manipulated UI interface generated in the display apparatus 200 and used to control the display apparatus 200.

In some embodiments, a driver assembly for driving the display is also included, depending on the type of display 275.

In some embodiments, display 275 is a projection display and may also include a projection device and a projection screen.

In some embodiments, communicator 220 is a component for communicating with external devices or external servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi chip, a bluetooth communication protocol chip, a wired ethernet communication protocol chip, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver.

In some embodiments, the display apparatus 200 may establish control signal and data signal transmission and reception with the external control apparatus 100 or the content providing apparatus through the communicator 220.

In some embodiments, the user interface 265 may be configured to receive infrared control signals from a control device 100 (e.g., an infrared remote control, etc.).

In some embodiments, the detector 230 is a signal used by the display device 200 to collect an external environment or interact with the outside.

In some embodiments, the detector 230 includes a light receiver, a sensor for collecting the intensity of ambient light, and parameters changes can be adaptively displayed by collecting the ambient light, and the like.

In some embodiments, the detector 230 may further include an image collector, such as a camera, etc., which may be configured to collect external environment scenes, collect attributes of the user or gestures interacted with the user, adaptively change display parameters, and recognize user gestures, so as to implement a function of interaction with the user.

In some embodiments, the detector 230 may also include a temperature sensor or the like, such as by sensing ambient temperature.

In some embodiments, the display apparatus 200 may adaptively adjust a display color temperature of an image. For example, the display apparatus 200 may be adjusted to display a cool tone when the temperature is in a high environment, or the display apparatus 200 may be adjusted to display a warm tone when the temperature is in a low environment.

In some embodiments, the detector 230 may also be a sound collector or the like, such as a microphone, which may be used to receive the user's voice. Illustratively, a voice signal including a control instruction of the user to control the display device 200, or to collect an ambient sound for recognizing an ambient scene type, so that the display device 200 can adaptively adapt to an ambient noise.

In some embodiments, as shown in fig. 2, the input/output interface 255 is configured to allow data transfer between the controller 250 and external other devices or other controllers 250. Such as receiving video signal data and audio signal data of an external device, or command instruction data, etc.

In some embodiments, the external device interface 240 may include, but is not limited to, the following: the interface can be any one or more of a high-definition multimedia interface (HDMI), an analog or data high-definition component input interface, a composite video input interface, a USB input interface, an RGB port and the like. The plurality of interfaces may form a composite input/output interface.

In some embodiments, as shown in fig. 2, the tuning demodulator 210 is configured to receive a broadcast television signal through a wired or wireless receiving manner, perform modulation and demodulation processing such as amplification, mixing, resonance, and the like, and demodulate an audio and video signal from a plurality of wireless or wired broadcast television signals, where the audio and video signal may include a television audio and video signal carried in a television channel frequency selected by a user and an EPG data signal.

In some embodiments, the frequency points demodulated by the tuner demodulator 210 are controlled by the controller 250, and the controller 250 can send out control signals according to user selection, so that the modem responds to the television signal frequency selected by the user and modulates and demodulates the television signal carried by the frequency.

In some embodiments, the broadcast television signal may be classified into a terrestrial broadcast signal, a cable broadcast signal, a satellite broadcast signal, an internet broadcast signal, or the like according to the broadcasting system of the television signal. Or may be classified into a digital modulation signal, an analog modulation signal, and the like according to a modulation type. Or the signals are classified into digital signals, analog signals and the like according to the types of the signals.

In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box. Therefore, the set top box outputs the television audio and video signals modulated and demodulated by the received broadcast television signals to the main body equipment, and the main body equipment receives the audio and video signals through the first input/output interface.

In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 may control the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 275, the controller 250 may perform an operation related to the object selected by the user command.

In some embodiments, the object may be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, such as: displaying the operation of connecting to a hyperlink interface, a document, an image and the like or executing the program corresponding to the icon. The user command for selecting the UI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch pad, etc.) connected to the display apparatus 200 or a voice command corresponding to a voice spoken by the user.

As shown in fig. 2, the controller 250 includes at least one of a Random Access Memory 251 (RAM), a Read-Only Memory 252 (ROM), a video processor 270, an audio processor 280, other processors 253 (e.g., a Graphics Processing Unit (GPU), a central Processing Unit 254 (CPU), a Communication Interface (Communication Interface), and a Communication Bus 256(Bus), which connects the respective components.

In some embodiments, RAM 251 is used to store temporary data for the operating system or other programs that are running, and in some embodiments, ROM252 is used to store instructions for various system boots.

In some embodiments, the ROM252 is used to store a Basic Input Output System (BIOS). The system is used for completing power-on self-test of the system, initialization of each functional module in the system, a driver of basic input/output of the system and booting an operating system.

In some embodiments, when the power-on signal is received, the display device 200 starts to power up, the CPU executes the system boot instruction in the ROM252, and copies the temporary data of the operating system stored in the memory to the RAM 251 so as to start or run the operating system. After the start of the operating system is completed, the CPU copies the temporary data of the various application programs in the memory to the RAM 251, and then, the various application programs are started or run.

In some embodiments, CPU processor 254 is used to execute operating system and application program instructions stored in memory. And executing various application programs, data and contents according to various interactive instructions received from the outside so as to finally display and play various audio and video contents.

In some example embodiments, the CPU processor 254 may comprise a plurality of processors. The plurality of processors may include a main processor and one or more sub-processors. A main processor for performing some operations of the display apparatus 200 in a pre-power-up mode and/or operations of displaying a screen in a normal mode. One or more sub-processors for one operation in a standby mode or the like.

In some embodiments, the graphics processor 253 is used to generate various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And the system comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on a display.

In some embodiments, the video processor 270 is configured to receive an external video signal, and perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, image synthesis, and the like according to a standard codec protocol of the input signal, so as to obtain a signal that can be displayed or played on the direct display device 200.

In some embodiments, video processor 270 includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, and the like.

The demultiplexing module is used for demultiplexing the input audio and video data stream, and if the input MPEG-2 is input, the demultiplexing module demultiplexes the input audio and video data stream into a video signal and an audio signal.

And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like.

And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display.

The frame rate conversion module is configured to convert an input video frame rate, such as a 60Hz frame rate into a 120Hz frame rate or a 240Hz frame rate, and the normal format is implemented in, for example, an interpolation frame mode.

The display format module is used for converting the received video output signal after the frame rate conversion, and changing the signal to conform to the signal of the display format, such as outputting an RGB data signal.

In some embodiments, the graphics processor 253 and the video processor may be integrated or separately configured, and when the graphics processor and the video processor are integrated, the graphics processor and the video processor may perform processing of graphics signals output to the display, and when the graphics processor and the video processor are separately configured, the graphics processor and the video processor may perform different functions, respectively, for example, a GPU + frc (frame Rate conversion) architecture.

In some embodiments, the audio processor 280 is configured to receive an external audio signal, decompress and decode the received audio signal according to a standard codec protocol of the input signal, and perform noise reduction, digital-to-analog conversion, and amplification processes to obtain an audio signal that can be played in a speaker.

In some embodiments, video processor 270 may comprise one or more chips. The audio processor may also comprise one or more chips.

In some embodiments, the video processor 270 and the audio processor 280 may be separate chips or may be integrated together with the controller in one or more chips.

In some embodiments, the audio output, under the control of controller 250, receives sound signals output by audio processor 280, such as: the speaker 286, and an external sound output terminal of a generating device that can output to an external device, in addition to the speaker carried by the display device 200 itself, such as: external sound interface or earphone interface, etc., and may also include a near field communication module in the communication interface, for example: and the Bluetooth module is used for outputting sound of the Bluetooth loudspeaker.

The power supply 290 supplies power to the display device 200 from the power input from the external power source under the control of the controller 250. The power supply 290 may include a built-in power supply circuit installed inside the display apparatus 200, or may be a power supply interface installed outside the display apparatus 200 to provide an external power supply in the display apparatus 200.

A user interface 265 for receiving an input signal of a user and then transmitting the received user input signal to the controller 250. The user input signal may be a remote controller signal received through an infrared receiver, and various user control signals may be received through the network communication module.

In some embodiments, the user inputs a user command through the control apparatus 100 or the mobile terminal 300, the user input interface responds to the user input through the controller 250 according to the user input, and the display device 200 responds to the user input through the controller 250.

In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on the display 275, and the user input interface receives the user input commands through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

In some embodiments, a "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form that is acceptable to the user. A commonly used presentation form of the User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.

The memory 260 includes a memory storing various software modules for driving the display device 200. Such as: various software modules stored in the first memory, including: at least one of a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules.

The base module is a bottom layer software module for signal communication between various hardware in the display device 200 and for sending processing and control signals to the upper layer module. The detection module is used for collecting various information from various sensors or user input interfaces, and the management module is used for performing digital-to-analog conversion and analysis management.

For example, the voice recognition module comprises a voice analysis module and a voice instruction database module. The display control module is used for controlling the display to display the image content, and can be used for playing the multimedia image content, UI interface and other information. And the communication module is used for carrying out control and data communication with external equipment. And the browser module is used for executing a module for data communication between browsing servers. And the service module is used for providing various services and modules including various application programs. Meanwhile, the memory 260 may store a visual effect map for receiving external data and user data, images of various items in various user interfaces, and a focus object, etc.

Fig. 3 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 3, the control apparatus 100 includes a controller 110, a communication interface 130, a user input/output interface, a memory, and a power supply source.

The control device 100 is configured to control the display device 200 and may receive an input operation instruction of a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an interaction intermediary between the user and the display device 200. Such as: the user responds to the channel up and down operation by operating the channel up and down keys on the control device 100.

In some embodiments, the control device 100 may be a smart device. Such as: the control apparatus 100 may install various applications that control the display apparatus 200 according to user demands.

In some embodiments, as shown in fig. 1, a mobile terminal 300 or other intelligent electronic device may function similar to the control device 100 after installing an application that manipulates the display device 200. Such as: the user may implement the functions of controlling the physical keys of the device 100 by installing applications, various function keys or virtual buttons of a graphical user interface available on the mobile terminal 300 or other intelligent electronic device.

The controller 110 includes a processor 112 and RAM 113 and ROM 114, a communication interface 130, and a communication bus. The controller is used to control the operation of the control device 100, as well as the communication cooperation between the internal components and the external and internal data processing functions.

The communication interface 130 enables communication of control signals and data signals with the display apparatus 200 under the control of the controller 110. Such as: the received user input signal is transmitted to the display apparatus 200. The communication interface 130 may include at least one of a WiFi chip 131, a bluetooth module 132, an NFC module 133, and other near field communication modules.

A user input/output interface 140, wherein the input interface includes at least one of a microphone 141, a touch pad 142, a sensor 143, keys 144, and other input interfaces. Such as: the user can realize a user instruction input function through actions such as voice, touch, gesture, pressing, and the like, and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the instruction signal to the display device 200.

The output interface includes an interface that transmits the received user instruction to the display apparatus 200. In some embodiments, the interface may be an infrared interface or a radio frequency interface. Such as: when the infrared signal interface is used, the user input instruction needs to be converted into an infrared control signal according to an infrared control protocol, and the infrared control signal is sent to the display device 200 through the infrared sending module. The following steps are repeated: when the rf signal interface is used, a user input command needs to be converted into a digital signal, and then the digital signal is modulated according to the rf control signal modulation protocol and then transmitted to the display device 200 through the rf transmitting terminal.

In some embodiments, the control device 100 includes at least one of a communication interface 130 and an input-output interface 140. The control device 100 is provided with a communication interface 130, such as: the WiFi, bluetooth, NFC, etc. modules may transmit the user input command to the display device 200 through the WiFi protocol, or the bluetooth protocol, or the NFC protocol code.

A memory 190 for storing various operation programs, data and applications for driving and controlling the control apparatus 200 under the control of the controller. The memory 190 may store various control signal commands input by a user.

And a power supply 180 for providing operational power support to the various elements of the control device 100 under the control of the controller. A battery and associated control circuitry.

In some embodiments, the system may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.

Referring to fig. 4, in some embodiments, the system is divided into four layers, which are an Application (Applications) layer (abbreviated as "Application layer"), an Application Framework (Application Framework) layer (abbreviated as "Framework layer"), an Android runtime (Android runtime) and system library layer (abbreviated as "system runtime library layer"), and a kernel layer from top to bottom.

In some embodiments, at least one application program runs in the application program layer, and the application programs can be Window (Window) programs carried by an operating system, system setting programs, clock programs, camera applications and the like; or may be an application developed by a third party developer such as a hi program, a karaoke program, a magic mirror program, or the like. In specific implementation, the application packages in the application layer are not limited to the above examples, and may actually include other application packages, which is not limited in this embodiment of the present application.

The framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions. The application framework layer acts as a processing center that decides to let the applications in the application layer act. The application program can access the resource in the system and obtain the service of the system in execution through the API interface

As shown in fig. 4, in the embodiment of the present application, the application framework layer includes a manager (Managers), a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an activity manager (ActivityManager) is used to interact with all activities running in the system; the Location Manager (Location Manager) is used for providing the system service or application with the access of the system Location service; a Package Manager (Package Manager) for retrieving various information related to an application Package currently installed on the device; a notification manager (notifiationmanager) for controlling display and clearing of notification messages; a Window Manager (Window Manager) is used to manage the icons, windows, toolbars, wallpapers, and desktop components on a user interface.

In some embodiments, the activity manager is to: managing the life cycle of each application program and the general navigation backspacing function, such as controlling the exit of the application program (including switching the user interface currently displayed in the display window to the system desktop), opening, backing (including switching the user interface currently displayed in the display window to the previous user interface of the user interface currently displayed), and the like.

In some embodiments, the window manager is configured to manage all window processes, such as obtaining a display size, determining whether a status bar is available, locking a screen, intercepting a screen, controlling a display change (e.g., zooming out, dithering, distorting, etc.) and the like.

In some embodiments, the system runtime layer provides support for the upper layer, i.e., the framework layer, and when the framework layer is used, the android operating system runs the C/C + + library included in the system runtime layer to implement the functions to be implemented by the framework layer.

In some embodiments, the kernel layer is a layer between hardware and software. As shown in fig. 4, the core layer includes at least one of the following drivers: audio drive, display drive, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (such as fingerprint sensor, temperature sensor, touch sensor, pressure sensor, etc.), and so on.

In some embodiments, the kernel layer further comprises a power driver module for power management.

In some embodiments, software programs and/or modules corresponding to the software architecture of fig. 4 are stored in the first memory or the second memory shown in fig. 2 or 3.

In some embodiments, taking the magic mirror application (photographing application) as an example, when the remote control receiving device receives a remote control input operation, a corresponding hardware interrupt is sent to the kernel layer. The kernel layer processes the input operation into an original input event (including information such as a value of the input operation, a timestamp of the input operation, etc.). The raw input events are stored at the kernel layer. The application program framework layer obtains an original input event from the kernel layer, identifies a control corresponding to the input event according to the current position of the focus and uses the input operation as a confirmation operation, the control corresponding to the confirmation operation is a control of a magic mirror application icon, the magic mirror application calls an interface of the application framework layer to start the magic mirror application, and then the kernel layer is called to start a camera driver, so that a static image or a video is captured through the camera.

In some embodiments, for a display device with a touch function, taking a split screen operation as an example, the display device receives an input operation (such as a split screen operation) that a user acts on a display screen, and the kernel layer may generate a corresponding input event according to the input operation and report the event to the application framework layer. The window mode (such as multi-window mode) corresponding to the input operation, the position and size of the window and the like are set by an activity manager of the application framework layer. And the window management of the application program framework layer draws a window according to the setting of the activity manager, then sends the drawn window data to the display driver of the kernel layer, and the display driver displays the corresponding application interface in different display areas of the display screen.

In some embodiments, as shown in fig. 5, the application layer containing at least one application may display a corresponding icon control in the display, such as: the system comprises a live television application icon control, a video on demand application icon control, a media center application icon control, an application center icon control, a game application icon control and the like.

In some embodiments, the live television application may provide live television via different signal sources. For example, a live television application may provide television signals using input from cable television, radio broadcasts, satellite services, or other types of live television services. And, the live television application may display video of the live television signal on the display device 200.

In some embodiments, a video-on-demand application may provide video from different storage sources. Unlike live television applications, video on demand provides a video display from some storage source. For example, the video on demand may come from a server side of the cloud storage, from a local hard disk storage containing stored video programs.

In some embodiments, the media center application may provide various applications for multimedia content playback. For example, a media center, which may be other than live television or video on demand, may provide services that a user may access to various images or audio through a media center application.

In some embodiments, an application center may provide storage for various applications. The application may be a game, an application, or some other application associated with a computer system or other device that may be run on the smart television. The application center may obtain these applications from different sources, store them in local storage, and then be operable on the display device 200.

Based on the display apparatus 200 described above, the user can set to perform an interactive operation through the control device 100 or the like, play a media asset, thereby displaying a play screen on the display 275, and simultaneously output sound through the audio output interface 285. Wherein the media assets include video media assets and audio media assets. Typically, both video assets and audio assets contain audio data. For example, after the user selects to play any video asset, the controller 250 may call a decoder or run a decoding program to decode the data of the video asset to obtain video data and audio data, respectively. The video data and audio data are then played back as pictures and sound by invoking the display 275 and the audio output interface 285, respectively.

Similarly, after the user selects to play any audio asset, the controller 250 may only call the audio-related hardware and execute the audio-related program, so as to decode the audio asset and obtain the audio data. The audio data is then sent to audio output interface 285 for output as sound. While outputting the sound, the display apparatus 200 may turn off the display 275 or present a music play screen on the display 275 according to rules set by a different operating system.

To output audio data as specific sound, a speaker 286 and an external audio output terminal 287 are connected to the audio output interface 285. Generally, the display device 200 may have a built-in speaker 286, and the external sound output terminal 287 may be connected to an external sound device, thereby converting an electrical signal of audio data into a specific sound signal.

The user can also connect the sound playing device 500 externally according to the playing requirement. For example, wired speakers, WiFi speakers, bluetooth speakers, and speakers based on other wireless transmission methods. Therefore, the external sound playing device 500 may be connected to the display device 200 through the WiFi module 221 and the bluetooth module 222 in the communicator 220, or may be connected to the display device 200 through the external sound output terminal 287 on the audio output interface 285, so as to output sound.

The audio playing method provided by the present application is applicable to both the audio playing apparatus 500 connected in the above two connection manners. However, in order to obtain better surround sound effect and reduce the cost of the device, in some embodiments of the present application, the auxiliary display device 200 is configured to construct surround sound by using a connection manner in which the sound playing apparatus 500 is connected to the display device 200 through the communicator 220.

For WiFi speakers, bluetooth speakers, and speakers based on other wireless transmission methods, due to the flexibility of their wireless connections, the location of the speakers can be set arbitrarily in the area near the display device 200. For example, the sound playing apparatus 500 may be disposed at the left, right, left rear, right rear, etc. of the viewing user, so as to generate sound signals at the set positions, thereby restoring the stereo effect.

A plurality of sound playing devices 500 may also be set according to the number of external devices supported by the display device 200 and the specific wireless connection manner. Obviously, the larger the number of the sound playing devices 500, the better the stereo effect that can be collectively presented, but the greater the capability requirement for processing the audio signal. Therefore, in practical applications, it is not necessary to provide an excessive number of sound reproduction apparatuses 500. For example, one sound playing apparatus 500 may be provided at each of the left and right rear sides of the user.

In addition, the same connection mode can be adopted between the plurality of sound playing apparatuses 500 and the display device 200. For example, both the two sound playing devices 500 are connected by bluetooth or by WiFi; different connection modes can be adopted between the plurality of sound playing apparatuses 500 and the display device 200. For example, one sound playing device 500 uses a bluetooth connection, and the other sound playing device 500 uses a WiFi connection. Since different connection modes have different processing modes for audio signals and correspondingly different playing effects, in practical applications, the same connection mode is preferably adopted for the plurality of sound playing apparatuses 500, so as to reduce the data processing amount of the display device 200, and simultaneously help to maintain the synchronization of the played sound among the plurality of sound playing apparatuses 500.

In the embodiment of the present application, since the external sound playing device 500 is used to assist in forming a surround sound effect, when an audio is actually played, the original speaker 286 on the display device 200 still keeps outputting the audio, and meanwhile, the external sound playing device 500 also keeps outputting the audio. In this way, as shown in fig. 6, by the speaker 286 located in front of the user and the sound playing device 500 located behind the user, surround sound can be formed in multiple directions around the user, so that the surround sound effect can be better reproduced compared to the conventional sound processing software algorithm.

In order to form a sound playing effect in multiple directions, some embodiments of the present application provide an audio playing method, as shown in fig. 7, the audio playing method includes the following steps:

s1: a control instruction for playing audio is obtained.

In practical applications, the control instruction for playing the audio may be manually input by a user, that is, when the user selects any one of the media assets for playing on the video or audio media asset interface, the display device 200 needs to convert the media asset data into a specific video or audio for playing. The control instruction for playing the audio may be a control instruction input when the user selects any one of the assets and starts playing. For example, the user performs an interactive operation through the control device 100, controls the focus cursor to move on the asset detail page, and presses the "OK/OK" key on the control device 100 when the cursor moves to the icon of "movie a", so as to perform the playing of the "movie a" asset, that is, input a control instruction for playing audio.

The user may also input control instructions for playing audio through a special audio (video) playing application, such as a "music player" that is self-contained in the operating system; or a control instruction for playing audio by a third party application that the user downloads by himself, such as "xx music" or the like. Generally, in a specific application program, a user clicks a "play/pause" control on a play interface to play a media asset, and inputs a control instruction for playing audio.

The control instruction for playing the audio may also be automatically input by the display apparatus 200 when the audio signal needs to be output. For example, according to the interaction policy of the operating system built in the display device 200, when the user performs some operations, the corresponding sound effect is matched. Therefore, in some embodiments, when the display device 200 needs to cooperate with the interactive operation to correspond to the sound effect, the control instruction for playing the audio can be input by monitoring the control instruction.

For example, during the booting process of the display device 200, when the booting program runs to display the booting animation, the booting prompt music needs to be played in cooperation. At this time, while the display device 200 is controlled to play the boot animation, a call instruction is sent to the audio-related module to call the audio-related module to play the boot prompting music, so that when the call instruction sent to the audio-related module is detected, it is determined that the control instruction for playing the audio is input.

In addition, for some applications, such as short video applications, game applications, etc., since the set interaction mode is that video or audio signals are automatically played when the application is opened. For this type of application, it can therefore be determined that a control instruction for playing audio is input when this type of application is opened.

S2: and responding to the control instruction, decoding the played audio to obtain multi-channel data.

After acquiring the control instruction for playing the audio, the controller 250 of the display apparatus 200 may perform decoding on the audio to be played in response to the control instruction, thereby decoding the media asset data into multi-channel data. Wherein the multi-channel data may be source data contained in media asset data, e.g., media asset is a surround sound film source; or data regenerated from the asset data in conjunction with a specific stereo reduction algorithm, for example, to simulate audio as surround sound through a built-in stereo reduction algorithm when the asset is not a surround sound source.

In order to implement decoding of the audio, in a specific application process, after receiving the control instruction, the controller 250 may obtain specific asset file data and decode the asset data by calling a Decoder. In the decoding process, the decoder may determine the number of channels included in the decoded multi-channel data according to the number of speakers 286 currently built in the display apparatus 200 and the number of external sound playing devices 500. For example, when 2 speakers 286 are built in the display device 200 and two audio playback devices 500 are connected to the display device 200, the decoder may decode four-channel data from the media data to play through the speakers 286 and the audio playback devices 500, respectively.

Meanwhile, according to the positional relationship between the speaker 286 and the sound playing apparatus 500 set by the viewing user, it is also possible to analyze the channel data corresponding to the set position in the decoding process. For example, the speakers 286 of the display device 200 are typically disposed on both sides of the display device 200, and the user is typically positioned directly across from the display 275 of the display device 200 when viewing the display device 200, with the two speakers 286 on the display device 200 positioned in front of the user on the left and right, respectively. And in order to obtain a better surround sound effect, two sound playing devices 500 externally connected to the display apparatus 200 may be disposed at the left and right rear of the user. Therefore, in the decoding process, the left channel data, the right channel data, the left surround channel data and the right surround channel data can be respectively analyzed from the media asset data through the decoder.

S3: and separating surround sound data and power amplifier sound data from the multi-channel data.

After decoding to obtain multi-channel data, the channels in the multi-channel data can be separated for being sent to different speakers 286 and sound playing apparatus 500 for playing, respectively. In this embodiment, in order to cooperate with the external sound playing device 500, the channel data may be divided into two types, one type is power amplification sound data played by the speaker 286 built in the display device 200, and the other type is surround sound data played by the external sound playing device 500.

The separated channel data may be played by the speaker 286 or the sound playing apparatus 500, respectively, so that the number of the separated channel data should be consistent with the number of the speaker 286 and the sound playing apparatus 500. For example, two pieces of power amplifier sound data, left channel data and right channel data, and two pieces of surround sound data, left surround channel data and right surround channel data, may be separated in multi-channel data, respectively.

After separating the multi-channel data, the controller 250 may further process the separated surround sound data and the power amplifier sound data by calling different sound effect processing programs, including processing procedures such as sound quality adjustment, volume adjustment, and play synchronization adjustment, so as to improve the restored stereo effect.

S4: and sending the power amplifier sound data to an audio output interface, and sending the surround sound data to the sound playing device through the communicator.

After separating the multi-channel data, the separated channel data may be transmitted separately. That is, the power amplification sound data may be sent to the audio output interface for playing through the built-in speaker 286. At the same time, the surround sound data is sent to the communicator 220, and the surround sound data is sent to the sound playing apparatus 500 through the communicator 220 to be played by the sound playing apparatus 500.

It can be seen that, in the above embodiment, the display device 200 may decode the media data into multi-channel data and separate the power amplification sound data and the surround sound data from the multi-channel data when playing audio, and finally transmit the power amplification sound data to the audio output interface and output the power amplification sound data at the speaker 286, and transmit the surround sound data to the sound playing apparatus 500 through the communicator 220 and output the power amplification sound data at the sound playing apparatus 500. As can be seen, the display device 200 can generate surround sound at the rear of the user by using the external sound playing device 500, and transmit surround sound data through the communicator 220, so that a better surround sound effect can be restored without laying out professional surround sound equipment.

In some embodiments, the sound playing apparatus 500 may establish a connection with the display device 200 through a WiFi network, and transmit corresponding channel data through the WiFi network. That is, the communicator 220 includes the WiFi module 221, as shown in fig. 8, the audio playing method further includes the following steps:

s501: the method comprises the steps that TCP broadcast is sent to a wireless local area network where display equipment is located through a WiFi module;

s502: receiving a broadcast response of the sound playing device to the TCP broadcast feedback;

s503: extracting an IP address from the broadcast reply;

s504: and configuring a playing sound channel for the sound playing device according to the IP address.

Among them, the Transmission Control Protocol (TCP) is a connection-oriented, reliable transport layer communication Protocol based on byte stream, and can adapt to a layered Protocol hierarchy supporting multi-network applications. In order to realize that the display device 200 is externally connected to the sound playing apparatus 500, in this embodiment, the controller 250 may send a TCP broadcast to the wireless local area network where the display device 200 is located through the WiFi module 221. The transmitted TCP broadcast may include an identifier indicating that a connection is established with the sound playing apparatus 500, so that the sound playing apparatus 500 may feed back a broadcast response to the TCP broadcast.

The controller 250 may receive the broadcast response fed back by the sound playing apparatus 500, extract the IP address corresponding to the sound playing apparatus 500 from the received broadcast response, and finally configure the playing channel for the corresponding sound playing apparatus 500 by using the IP address as the identification mark, that is, set which channel the sound playing apparatus 500 user corresponding to the IP address plays.

For example, the display device 200 and 2 WiFi radios are connected to the same router at the same time, i.e., the display device 200 and the WiFi radios are in the same home lan. The display device 200 first searches in the home lan to find a WiFi sound device. And then, by sending the TCP broadcast, the WiFi audio feeds back a broadcast response after receiving the TCP broadcast, and notifies the display device 200 of the corresponding IP address information. The display device 200 configures a play sound channel of the WIFI sound by establishing a connection with the responded WIFI sound.

Configuring the sound playback apparatus 500 to play back the sound channels may be done manually by the user. For example, after the user sets one sound playback apparatus 500 at a position behind the left of the viewing zone, the user manually sets the playback channel of the sound playback apparatus 500 to the left surround channel when the sound playback apparatus 500 is connected to the display device 200.

The playback channel may also be automatically configured by the display device 200 for the accessed sound playback apparatus 500. For example, after establishing the wireless network connection, the display device 200 may send a test sound to the accessed sound playing apparatus 500, and receive a test sound signal played by the sound playing apparatus 500 through a plurality of built-in or external microphone devices. And then, the direction of the sound playing device 500 is determined by combining a plurality of times of test sounds with different volumes and signal result calculation detected by a plurality of microphone devices, so that a playing sound channel is configured for the sound playing device 500 according to the determined direction.

Obviously, the display apparatus 200 may establish a wireless connection with a plurality of sound reproduction devices 500 in the same network through a WiFi network, and configure a reproduction channel for each sound reproduction device 500 according to the setting position thereof. The IP address corresponding to each audio playback device 500 may be used as a mark for distinguishing each channel, that is, when transmitting the surround sound data to the audio playback device 500, the data transmission may be performed according to the IP address of each audio playback device 500.

In order to enable the sound playing apparatus 500 to communicate with the display device 200, in some embodiments of the present application, after the step of configuring the playing channel for the sound playing apparatus according to the IP address, the method further includes: establishing communication connection with the sound playing device according to the IP address; and sending a configuration file to the sound playing device.

Wherein the configuration file comprises an application program installable on the sound playing device. That is, in practical applications, the sound playing apparatus 500 needs to separately establish an application, so that the data of the display device 200 and the sound playing apparatus 500 can be transmitted according to the TCP protocol through the established application. That is, the display device 200 may notify the sound playing apparatus 500 of the transmitted data format information through TCP protocol communication, so as to perform parsing at the sound playing apparatus 500 through a defined data format, thereby playing the channel data.

It can be seen that, in this embodiment, the configuration file is sent to the sound playing apparatus 500 through the display device 200, so that the sound playing apparatus 500 can directly obtain the installation file of the application program from the configuration file, thereby creating an application on the sound playing apparatus 500, and data transmission between the display device 200 and the sound playing apparatus 500 can be achieved without additional configuration of the sound playing apparatus 500.

After establishing the wireless network connection, the controller 250 of the display apparatus 200 may extract surround sound data in a playback channel from the multichannel data and transmit the surround sound data to the sound playback device 500 with the IP address as a target.

In the above-described embodiment, it is possible to generate sound in the side, rear, or the like directions by placing the WiFi network-based audio device around the user viewing area. And by adopting the WiFi network, the separated surround sound data can be sent to the sound playing device 500 for playing, so as to obtain a better surround sound effect. Therefore, the embodiment can utilize the idle sound equipment in the house, can realize the stereo effect of the surround sound after the sound like a cinema without rewiring, and improves the user experience.

In some embodiments of the present application, the connection between the display device 200 and the sound playing apparatus 500 may also be implemented by means of a bluetooth connection. That is, the communicator 220 includes the bluetooth module 222, as shown in fig. 9, the audio playing method further includes the following steps:

s601: searching the sound playing device which can be paired through the Bluetooth module;

s602: the sound playing device is connected with at least one sound playing device in a pairing mode through Bluetooth;

s603: acquiring name information of the paired sound playing devices;

s604: and configuring a playing sound channel for the sound playing device according to the name information.

In order to realize a bluetooth connection between the display device 200 and the sound playing apparatus 500. The display apparatus 200 may search for the pairable sound playing apparatuses 500 within a certain range through the bluetooth module 222, and pair with at least one sound playing apparatus 500 in a bluetooth pairing manner.

For the paired sound playing apparatus 500, the controller 250 may further extract name information of the sound playing apparatus 500, so that the user may identify the sound playing apparatus 500 when the channel data is transmitted later. The name information may be a device name customized by a user in the pairing process, or identification information determined by reading the device information, such as a MAC address of the device.

If the searched device names of the pairable sound playing apparatuses 500 are the same during the pairing process, the device names can be distinguished by modifying the name information. For example, if the self-defined device names of the paired two sound playing apparatuses 500 are both "bluetooth speaker", a distinguishing identifier may be added to the device names, and the names of the two sound playing apparatuses 500 are modified to "bluetooth speaker 01" and "bluetooth speaker 02", respectively.

After obtaining the name information of the paired sound playing apparatuses 500, the display device 200 configures a playing channel for each sound playing apparatus 500 by using the name information as a mark. Similarly, different playback channels may be configured according to the setting position of the sound playback apparatus 500. For example, the sound playing apparatus 500 disposed at the rear right side of the user is configured to play the channel as a right surround channel.

Similarly, for the sound playing apparatus 500 configured with the playing channel, the surround sound data under the playing channel may be extracted from the multi-channel data; and sending the surround sound data to the corresponding sound playing device according to the name information. For example, the extracted right surround channel data is transmitted to the sound playing apparatus 500 configured as the right surround channel.

As can be seen, in the above embodiment, the connection between the display device 200 and the sound playing apparatus 500 may be implemented by means of a bluetooth connection. The bluetooth connection is a wireless connection mode, which can realize data transmission in a certain range, and for the sound playing apparatus 500 based on the bluetooth connection, because a general protocol is used, it is not necessary to create an application in the sound playing apparatus 500 separately, so that the configuration requirements of most display devices 200 can be satisfied.

It should be noted that, in order to implement that the display device 200 is externally connected to the sound playing apparatus 500, other wireless connection methods may also be adopted, for example, zigbee, radio frequency network, and the like.

In addition, after the conventional WiFi speaker or bluetooth speaker is connected to the display device 200, when playing audio, the speaker 286 built in the display device 200 may be turned off, and only the WiFi speaker or bluetooth speaker outputs sound. In the embodiment of the present application, although the display device 200 is connected to the external sound playing apparatus 500, in order to obtain the surround sound effect, the speaker 286 is not turned off when playing the audio, and the speaker 286 and the sound playing apparatus 500 are kept outputting the sound at the same time.

And to distinguish from the above-described two use cases, it is ensured that the display device 200 and the sound playing apparatus 500 are correctly used. Before the display device 200 establishes a connection with the sound playing apparatus 500, the user may be prompted by an operation page for the purpose of the sound playing apparatus 500 accessed. For example, when the sound player 500 is connected, a prompt interface may pop up, and the prompt interface includes two controls for the user to select, such as "access sound" and "compose surround sound". If the user selects "access sound", the speaker 286 built in the display device 200 is turned off in a conventional sound playing manner; if the user selects "compose surround sound", the speaker 286 is caused to output sound simultaneously with the sound playing apparatus 500 in the sound output manner in the above-described embodiment.

In some embodiments of the present application, to obtain a better sound playing effect, before sending the surround sound data and the power amplifier sound data to the sound playing apparatus 500 and the speaker 286, sound quality processing may be performed on the audio. That is, the display apparatus 200 further includes an audio processor 280, and the audio playing method further includes: transmitting the multi-channel data to the audio processor 280 to perform sound effect processing; alternatively, the surround sound data and the power amplifier sound data are respectively sent to the audio processor 280 to perform sound effect processing.

The sound quality processing performed on the audio is sound related processing performed on the audio data, and includes sound effect processing such as PEQ, GEQ, ATMOS, and DTS. In practical applications, after decoding the played audio to obtain multi-channel data, the multi-channel data may be sent to the audio processor 280, so that the multi-channel data can be processed uniformly by the audio processor 280. The processing efficiency is high under the condition of uniformly processing the sound effect, high-quality audio data can be quickly obtained, and the overall tone quality of the processed sound can be kept consistent.

Or after separating the surround sound data and the power amplifier sound data from the multichannel data, the surround sound data and the power amplifier sound data may be respectively sent to the audio processor 280, so as to perform sound effect processing for each channel. For the condition of respectively carrying out sound effect processing, different sound effect adaptive processing can be carried out aiming at different sound channels, so that a more still surround sound effect is obtained.

Since there is a certain data transmission delay inevitably when data is transmitted through the WiFi network and the bluetooth connection, this will cause the sound playing apparatus 500 to be out of synchronization with the sound emitted from the speaker 286 of the display device 200, which affects the user experience. For example, it can be determined through real-time measurement or statistical analysis that the display device 200 generates a delay of 0.5s when the bluetooth speaker is connected, i.e., the audio played through the bluetooth speaker lags behind the display screen by 0.5s, so that the voice is not synchronized. While the sound output through the speaker 286 built in the display device 200 is kept in synchronization with the picture, i.e., there is no synchronization between the sound output from the speaker 286 and the sound output from the bluetooth speaker, the audio played through the bluetooth speaker is 0.5s later than the audio output from the speaker 286.

To this end, in some embodiments, the display device 200 further includes a synchronization module, and as shown in fig. 10, the step of separating the surround sound data and the power amplifier sound data from the multi-channel data further includes:

s701: sending the surround sound data and the power amplifier sound data to the synchronization module to execute cache processing;

s702: controlling the synchronization module to form the cached audio data into a data stream;

s703: and adjusting the sending time sequence of the data stream to keep the synchronization of the audio output interface and the sound played by the sound playing device.

After separating the surround sound data and the power amplifier sound data from the multichannel data, the separated surround sound data and the power amplifier sound data may be sent to the synchronization module to perform the cache processing. The controller 250 may obtain the playing delay time of each sound playing apparatus 500 in real time, control the synchronization module to form a data stream according to the playing delay time, and send the formed data stream with a specific sending timing sequence, so as to alleviate the problem that the sound playing apparatus 500 and the speaker 286 play sound out of synchronization.

For example, in order to improve the problem of the out-of-sync problem that the audio played through the bluetooth speaker is 0.5s later than the audio output by the speaker 286, after separating the surround data and the power amplifier data from the multichannel data, the surround data and the power amplifier data may be sent to the synchronization module, and buffered in the synchronization module to form a data stream. The controller 250 controls the sending time sequence of the two data streams, delays the power amplifier sound data by 0.5s and sends the power amplifier sound data to the audio output interface 285, or sends the surround sound data to the bluetooth sound box by 0.5s in advance, so as to improve the asynchronous problem between the loudspeaker 286 and the bluetooth sound box.

In some embodiments of the present application, the step of sending the surround sound data to the sound playing apparatus 500 through the communicator may further include, by sending the surround sound data to the sound playing apparatus 500 according to the setting position of the sound playing apparatus 500, as shown in fig. 11:

s801: acquiring azimuth information of the sound playing device relative to the display equipment;

s802: setting a playing sound channel of the sound playing device according to the direction information;

s803: and sending the surround sound data corresponding to the playing sound channel to the sound playing device.

In order to be able to obtain the surround sound effect, it is possible to acquire azimuth information of the sound playing apparatus 500 with respect to the display device 200 in real time and set a playing channel of the sound playing apparatus 500 through the acquired azimuth information, thereby transmitting surround sound data corresponding to the playing channel to the sound playing apparatus 500.

Since the sound reproduction apparatus 500 may be moved to change its original setting position in practical applications, for example, the positions of the two sound reproduction apparatuses 500 located at the left rear and the right rear may be interchanged in some cases. Therefore, by acquiring the direction information of the sound playing apparatus 500 in real time, the direction of the sound playing apparatus 500 can be determined, so as to send corresponding surround sound data to the sound playing apparatus 500, thereby realizing that surround sounds of corresponding channels are played according to the sound playing apparatus 500 at different positions, and alleviating the influence on the playing quality caused by changing the position of the sound playing apparatus 500.

In this embodiment, in order to obtain the orientation information of the sound playing apparatus 500 relative to the display device 200, it is also possible to control the sound playing apparatus 500 to play the test sound, detect the sound signals through a plurality of microphones built in the display device 200, and determine the orientation through the volume changes of the sound signals detected by the plurality of microphones.

The user environment may be image-captured by a camera or the like built in or externally connected to the display device 200, and the position of the sound playing apparatus 500 may be identified by analyzing features in the captured image. For example, a power indicator is usually disposed on a bluetooth speaker connected to the display device 200, and the position of the sound playing apparatus 500 can be identified by detecting an image corresponding to the power indicator in the captured image.

In some embodiments of the present application, the volume of each sound playing apparatus 500 may also be adjusted according to the orientation information of the sound playing apparatus 500, so that the volumes of the sounds output by the respective sound playing apparatuses 500 and the speaker 286 are kept consistent or in a specific proportional relationship, so as to present a better surround sound effect to the user.

For example, after the direction information of the sound playing apparatus 500 is acquired, the volume of the sound playing apparatus 500 relatively far away from the display device 200 may be turned up, while the volume of the sound playing apparatus 500 relatively close to the display device 200 may be turned down, and the volume of the speaker 286 built in the display device 200 may be adaptively adjusted, so that the volumes heard in the directions of the users tend to be the same.

Based on the audio playing method provided in the foregoing embodiment, some embodiments of the present application further provide a display device 200, including: a display 275, a communicator 220, an audio output interface 285, and a controller 250. Wherein the display 275 is configured to present an audio playback screen and various control interfaces; the communicator 220 is configured to establish a wireless connection with a sound playing apparatus; the audio output interface 285 is configured to play audio signals.

As shown in fig. 6, the controller 250 is configured to perform the following program steps:

s1: acquiring a control instruction for playing audio;

s2: responding to the control instruction, decoding the played audio to obtain multi-channel data;

s3: separating surround sound data and power amplifier sound data from the multi-channel data;

In view of the foregoing technical solutions, the present application provides a display device 200 and an audio playing method, where the method may perform decoding on a played audio after a control instruction for playing the audio is obtained, so as to obtain multi-channel data. And separates the surround sound data and the power amplification sound data from the multichannel data, thereby transmitting the power amplification sound data to the audio output interface 285, and transmitting the surround sound data to the sound playing apparatus 500 through the communicator 220. According to the method, the audio playing device 500 such as a WiFi sound box or a Bluetooth sound box is matched with the audio output interface 285 of the display device 200, so that the audio is respectively played in multiple directions, and the sound surrounding effect in the front, back, left and right directions is achieved, so that a better surrounding stereo effect is brought to a user.

The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.

Claims

1. A display device, comprising:

a display;

a communicator configured to establish a wireless connection with a sound playing apparatus;

an audio output interface configured to play an audio signal;

a controller configured to:

acquiring a control instruction for playing audio;

2. The display device of claim 1, wherein the communicator comprises a WiFi module, and wherein the controller is further configured to:

the method comprises the steps that TCP broadcast is sent to a wireless local area network where display equipment is located through a WiFi module;

receiving a broadcast response of the sound playing device to the TCP broadcast feedback;

extracting an IP address from the broadcast reply;

and configuring a playing sound channel for the sound playing device according to the IP address.

3. The display device of claim 2, wherein the controller is further configured to:

establishing communication connection with the sound playing device according to the IP address;

and sending a configuration file to the sound playing device, wherein the configuration file comprises an application program which can be installed on the sound playing device.

4. The display device of claim 2, wherein the controller is further configured to:

extracting surround sound data under the playing channel from the multi-channel data;

and sending the surround sound data to the sound playing device by taking the IP address as a target.

5. The display device of claim 1, wherein the communicator comprises a bluetooth module, and wherein the controller is further configured to:

searching the sound playing device which can be paired through the Bluetooth module;

the sound playing device is connected with at least one sound playing device in a pairing mode through Bluetooth;

acquiring name information of the paired sound playing devices;

and configuring a playing sound channel for the sound playing device according to the name information.

6. The display device of claim 5, wherein the controller is further configured to:

and sending the surround sound data to a corresponding sound playing device according to the name information.

7. The display device of claim 1, wherein the display device further comprises an audio processor, and wherein the controller is further configured to:

sending the multi-channel data to the audio processor to execute sound effect processing; alternatively, the first and second electrodes may be,

and respectively sending the surround sound data and the power amplifier sound data to the audio processor to execute sound effect processing.

8. The display device of claim 1, wherein the display device further comprises a synchronization module, and wherein the controller is further configured to:

sending the surround sound data and the power amplifier sound data to the synchronization module to execute cache processing;

controlling the synchronization module to form the cached audio data into a data stream;

and adjusting the sending time sequence of the data stream to keep the synchronization of the audio output interface and the sound played by the sound playing device.

9. The display device of claim 1, wherein the controller is further configured to:

acquiring azimuth information of the sound playing device relative to the display equipment;

setting a playing sound channel of the sound playing device according to the direction information;

and sending the surround sound data corresponding to the playing sound channel to the sound playing device.

10. An audio playing method, comprising:

acquiring a control instruction for playing audio;

and transmitting the power amplifier sound data to an audio output interface, and transmitting the surround sound data to a sound playing device through the communicator.