CN112073803B

CN112073803B - Sound reproduction method and display device

Info

Publication number: CN112073803B
Application number: CN201910842933.8A
Authority: CN
Inventors: 陈俊宁; 齐消消; 初德进
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2019-06-10
Filing date: 2019-09-06
Publication date: 2024-03-29
Anticipated expiration: 2039-09-06
Also published as: CN112073803A

Abstract

The embodiment of the application shows a sound reproduction method and display equipment, and is particularly suitable for social televisions. According to the technical scheme, a first chip sends a first starting instruction for representing starting of a first application or a second starting instruction for representing starting of a second application to a second chip, wherein the time delay requirement of the first application for sound reproduction is smaller than that of the second application for sound reproduction; the second chip responds to the first starting instruction, and the sound processing module is closed, so that the sound processing module does not process the audio data received from the first chip; the second chip responds to receiving a second starting instruction, and the processing module is started, so that the sound processing module processes the audio data received from the first chip; and the second chip sends the audio data output by the sound processing module to the loudspeaker so as to process the sounds of different applications differently, thereby improving the experience of the user.

Description

Sound reproduction method and display device

The present application claims priority from the filing of the chinese patent application with application number 201910498218.7 by the national intellectual property agency on day 6 and 10 of 2019. The entire contents of which are incorporated herein by reference.

Technical Field

Embodiments of the present application relate to display technology. And more particularly, to a sound reproducing method and a display apparatus.

Background

Currently, a display device is receiving a great deal of attention from users because it can provide a user with a play screen such as audio, video, pictures, etc. With the development of big data and artificial intelligence, the functional demands of users on display devices are increasing. For example, some users want to sing through the display device, some want to watch high definition cable television through the display device, and some users want to watch cable television through the display device.

Disclosure of Invention

Based on the above technical problems, an object of the present application is to provide a sound reproduction method and a display device.

A first aspect of the embodiments of the present application shows a sound reproduction method applied to a display device including a speaker, a second chip connected to the speaker, and a first chip connected to the second chip:

the first chip sends a first starting instruction representing the starting of a first application or a second starting instruction representing the starting of a second application to the second chip, wherein the time delay requirement of the first application on sound reproduction is smaller than that of the second application on sound reproduction;

The second chip responds to the first starting instruction to enable the sound processing module to be closed, so that the sound processing module does not process the audio data received from the first chip; the second chip responds to the second starting instruction, and a processing module is started, so that the sound processing module processes the audio data received from the first chip;

and the second chip sends the audio data output by the sound processing module to the loudspeaker.

A second aspect of the embodiments of the present application shows a display device, including:

the first chip is used for sending a first starting instruction for representing the starting of the first application or a second starting instruction for representing the starting of the second application to the second chip, wherein the time delay requirement of the first application on the sound reproduction is smaller than that of the second application on the sound reproduction;

the second chip is connected with the loudspeaker and the first chip respectively and is configured to enable the sound processing module to be closed in response to receiving the first starting instruction so that the sound processing module does not process the audio data received from the first chip; responsive to receiving the second initiation instruction, causing a processing module to be turned on so that the sound processing module can process audio data received from the first chip; and sending the audio data output by the sound processing module to the loudspeaker.

As can be seen from the above technical solutions, the embodiments of the present application illustrate a sound reproduction method and a display device. According to the technical scheme, the second chip receives the starting instruction and responds to the starting instruction as the first starting instruction, the second chip closes the sound processing module, so that the second chip does not delay audio data received from the first chip, the audio data is output from the loudspeaker rapidly, the occurrence of the problem of sound delay of the display device under the 'low-delay situation' is successfully avoided, and the experience of a user is improved. And simultaneously, the second chip responds to the second starting instruction to start the processing module, so that the sound processing module processes the audio data received from the first chip to improve the experience of a user.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

A schematic diagram of an operation scenario between a display device and a control apparatus according to an embodiment is exemplarily shown in fig. 1;

a hardware configuration block diagram of the control apparatus 100 according to the embodiment is exemplarily shown in fig. 2;

a hardware configuration block diagram of the display device 200 in accordance with the embodiment is exemplarily shown in fig. 3;

a hardware architecture block diagram of the display device 200 according to fig. 3 is exemplarily shown in fig. 4;

a functional configuration diagram of the display device 200 according to the embodiment is exemplarily shown in fig. 5;

a schematic diagram of the software configuration in the display device 200 according to an embodiment is exemplarily shown in fig. 6 a;

a schematic configuration of an application in the display device 200 according to an embodiment is exemplarily shown in fig. 6 b;

a schematic diagram of a user interface in a display device 200 according to an embodiment is exemplarily shown in fig. 7;

a flowchart of a sound reproduction method according to an embodiment is exemplarily shown in fig. 8;

a block diagram of a display device according to an embodiment is illustrated in fig. 9.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the exemplary embodiments of the present application more apparent, the technical solutions in the exemplary embodiments of the present application will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present application, and it is apparent that the described exemplary embodiments are only some embodiments of the present application, but not all embodiments.

For convenience of use, various external device interfaces are usually provided on the display device, so as to connect different peripheral devices or cables to realize corresponding functions. When the high-definition camera is connected to the interface of the display device, if the hardware system of the display device does not have the hardware interface of the high-pixel camera for receiving the source code, the data received by the camera cannot be presented on the display screen of the display device.

Also, due to the hardware structure, the hardware system of the conventional display device only supports one path of hard decoding resource, and usually only supports video decoding with a resolution of 4K at maximum, so when video chat while watching the network television is to be implemented, in order not to reduce the definition of the network video picture, it is necessary to decode the network video using the hard decoding resource (typically, GPU in the hardware system), and in this case, only the video chat picture can be processed in such a way that the video is soft decoded by a general processor (e.g. CPU) in the hardware system.

The soft decoding is adopted to process the video chat pictures, so that the data processing load of the CPU is greatly increased, and when the data processing load of the CPU is too heavy, the problems of picture blocking or unsmooth can occur. Furthermore, due to the data processing capability of the CPU, when the video chat frame is processed by adopting the soft decoding of the CPU, the multi-channel video call cannot be realized, and when the user wants to perform video chat with a plurality of other users at the same time in the same chat scene, the situation of access blocking occurs.

Based on the above-mentioned aspects, to overcome the above-mentioned drawbacks, the present application discloses a dual hardware system architecture to implement multiple video chat data (at least one local video).

The concepts related to the present application will be described with reference to the accompanying drawings. It should be noted that the following descriptions of the concepts are only for making the content of the present application easier to understand, and do not represent a limitation on the protection scope of the present application.

The term "module" as used in various embodiments of the present application may refer to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware or/and software code that is capable of performing the functionality associated with that element.

The term "remote control" as used in the various embodiments of the present application refers to a component of an electronic device (such as a display device as disclosed herein) that can typically wirelessly control the electronic device over a relatively short range of distances. The assembly may be connected to the electronic device generally using infrared and/or Radio Frequency (RF) signals and/or bluetooth, and may also include functional modules such as WiFi, wireless USB, bluetooth, motion sensors, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in a general remote control device with a touch screen user interface.

The term "gesture" as used in embodiments of the present application refers to a user behavior that is used to express an intended idea, action, purpose, and/or result by a change in hand or motion of a hand, etc.

The term "hardware system" as used in the various embodiments of the present application may refer to a physical component comprising mechanical, optical, electrical, magnetic devices such as integrated circuits (Integrated Circuit, ICs), printed circuit boards (Printed circuit board, PCBs) with computing, control, storage, input and output functions. In various embodiments of the present application, the hardware system may also be generally referred to as a motherboard (or a chip).

A schematic diagram of an operation scenario between a display device and a control apparatus according to an embodiment is exemplarily shown in fig. 1. As shown in fig. 1, a user may operate the display apparatus 200 by controlling the device 100.

The control device 100 may be a remote controller 100A, which may communicate with the display device 200 through infrared protocol communication, bluetooth protocol communication, zigBee protocol communication, or other short-range communication, and is used to control the display device 200 through wireless or other wired modes. The user may control the display device 200 by inputting user instructions through keys on a remote control, voice input, control panel input, etc. Such as: the user can input corresponding control instructions through volume up-down keys, channel control keys, up/down/left/right movement keys, voice input keys, menu keys, on-off keys, etc. on the remote controller to realize the functions of the control display device 200.

The control apparatus 100 may also be a smart device, such as a mobile terminal 100B, a tablet, a computer, a notebook, etc., which may communicate with the display device 200 through a local area network (LAN, local Area Network), a wide area network (WAN, wide Area Network), a wireless local area network ((WLAN, wireless Local Area Network) or other networks, and control the display device 200 through an application program corresponding to the display device 200.

By way of example, both the mobile terminal 100B and the display device 200 may be provided with software applications, so that connection communication between the two may be implemented through a network communication protocol, thereby achieving the purpose of one-to-one control operation and data communication. Such as: the mobile terminal 100B and the display device 200 can be made to establish a control instruction protocol, the remote control keyboard is synchronized to the mobile terminal 100B, and the functions of controlling the display device 200 are realized by controlling the user interface on the mobile terminal 100B; the audio/video content displayed on the mobile terminal 100B may also be transmitted to the display device 200, so as to implement a synchronous display function.

As shown in fig. 1, the display device 200 may also be in data communication with the server 300 through a variety of communication means. In various embodiments of the present application, display device 200 may be permitted to communicate with server 300 via a local area network, wireless local area network, or other network. The server 300 may provide various contents and interactions to the display device 200.

By way of example, the display device 200 receives software program updates by sending and receiving information, and electronic program guide (EPG, electronic Program Guide) interactions, or accesses a remotely stored digital media library. The servers 300 may be one group, may be multiple groups, and may be one or more types of servers. Other web service content such as video on demand and advertising services are provided through the server 300.

The display device 200, in one aspect, may be a liquid crystal display, OLED (Organic Light Emitting Diode) display, projection display device; in another aspect, the display device may be a smart television or a display system of a display and a set-top box. The particular display device type, size, resolution, etc. are not limited, and those skilled in the art will appreciate that the display device 200 may be subject to some changes in performance and configuration as desired.

The display device 200 may additionally provide an intelligent network television function of a computer support function in addition to the broadcast receiving television function. Examples include web tv, smart tv, internet Protocol Tv (IPTV), etc. In some embodiments, the display device may not have broadcast receiving television functionality.

As shown in fig. 1, a camera may be connected to or disposed on the display device, so as to present a picture surface captured by the camera on a display interface of the display device or other display devices, so as to implement interactive chat between users. Specifically, the picture shot by the camera can be displayed in a full screen, a half screen or any optional area on the display device.

As an optional connection mode, the camera is connected with the display back shell through the connecting plate, is fixedly arranged in the middle of the upper side of the display back shell, and can be fixedly arranged at any position of the display back shell in a mountable mode, so that an image acquisition area of the camera can be prevented from being blocked by the back shell, for example, the display orientation of the image acquisition area is the same as that of display equipment.

As another alternative connection mode, the camera is connected with the display back shell in a liftable manner through a connection plate or other conceivable connectors, and a lifting motor is installed on the connectors, so that when a user needs to use the camera or has an application program to use the camera, the camera is lifted out of the display, and when the user does not need to use the camera, the camera can be embedded behind the back shell so as to protect the camera from damage.

As an embodiment, the camera adopted in the application can be 1600 ten thousand pixels, so as to achieve the purpose of ultra-high definition display. In practical use, cameras higher or lower than 1600 ten thousand pixels may also be used.

After the camera is installed on the display device, the contents displayed in different application scenes of the display device can be fused in a plurality of different modes, so that the function which cannot be realized by the traditional display device is achieved.

For example, a user may conduct a video chat with at least one other user while watching a video program. The presentation of the video program may be a background picture over which a window of video chat is displayed. The function is visual and can be called as 'chat while watching'.

Optionally, in the scene of "watch while chat", at least one video chat is performed across terminals while live video or network video is being watched.

In another example, a user may conduct a video chat with at least one other user while entering the educational application study. For example, students may be able to achieve remote interaction with teachers while learning content in educational applications. The function is visual and can be called as 'learning while boring'.

In another example, a user may conduct a video chat with a player entering a game while playing a card game. For example, a player may enable remote interaction with other players when entering a gaming application to participate in a game. The function is visual and can be called 'play while watching'.

Optionally, the game scene is fused with the video picture, the portrait in the video picture is scratched, and the portrait is displayed in the game picture, so that the user experience is improved.

Optionally, in somatosensory games (such as ball playing, boxing, running, dancing, etc.), the body gestures and actions are obtained through the camera, limb detection and tracking, detection of key point data of the bones of the body, and then the body gestures and actions are fused with animation in the games, so that the games of scenes such as sports, dance, etc. are realized.

In another example, a user may interact with at least one other user in a karaoke application, video and voice. The function is visual and can be called 'watch and sing'. Preferably, when at least one user enters the application in the chat scene, a plurality of users can jointly complete recording of one song.

In another example, the user may open the camera locally to take pictures and video, and the function may be referred to as "looking at the mirror".

In other examples, more functions may be added or the above functions may be reduced. The function of the display device is not particularly limited in this application.

A block diagram of the configuration of the control apparatus 100 according to the exemplary embodiment is exemplarily shown in fig. 2. As shown in fig. 2, the control device 100 includes a controller 110, a communicator 130, a user input/output interface 140, a memory 190, and a power supply 180.

The control apparatus 100 is configured to control the display device 200 and to receive an input operation instruction from a user, and to convert the operation instruction into an instruction recognizable and responsive to the display device 200, and to perform an interaction between the user and the display device 200. Such as: the user responds to the channel addition and subtraction operation by operating the channel addition and subtraction key on the control apparatus 100.

In some embodiments, the control apparatus 100 may be a smart device. Such as: the control apparatus 100 may install various applications for controlling the display device 200 according to user's needs.

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

The controller 110 includes a processor 112, RAM113 and ROM114, a communication interface, and a communication bus. The controller 110 is used to control the operation and operation of the control device 100, as well as the communication collaboration among the internal components and the external and internal data processing functions.

The communicator 130 performs communication of control signals and data signals with the display device 200 under the control of the controller 110. Such as: the received user input signal is transmitted to the display device 200. The communicator 130 may include at least one of a WIFI module 131, a bluetooth module 132, an NFC module 133, and the like.

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, etc. Such as: the user can implement a user instruction input function through actions such as voice, touch, gesture, press, and the like, and the input interface converts a received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the corresponding instruction signal to the display device 200.

The output interface includes an interface that transmits the received user instruction to the display device 200. In some embodiments, an infrared interface may be used, as well as 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. And the following steps: when the radio frequency signal interface is used, the user input instruction is converted into a digital signal, and then the digital signal is modulated according to a radio frequency control signal modulation protocol and then transmitted to the display device 200 through the radio frequency transmission terminal.

In some embodiments, the control device 100 includes at least one of a communicator 130 and an output interface. The control device 100 is provided with a communicator 130 such as: the modules such as WIFI, bluetooth, NFC, etc. may send the user input instruction 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 device 100 under the control of the controller 110. The memory 190 may store various control signal instructions input by a user.

A power supply 180 for providing operating power support for the various elements of the control device 100 under the control of the controller 110. May be a battery and associated control circuitry.

A hardware configuration block diagram of a hardware system in the display device 200 according to an exemplary embodiment is exemplarily shown in fig. 3.

When the dual hardware system architecture is adopted, the organization relationship of the hardware system can be shown in fig. 3. For convenience of description, one hardware system in the dual hardware system architecture is referred to as a first hardware system or a system, a chip, and the other hardware system is referred to as a second hardware system or N system, N chip. The A chip comprises a controller of the A chip and various modules connected with the controller of the A chip through various interfaces, and the N chip comprises a controller of the N chip and various modules connected with the controller of the N chip through various interfaces. The a chip and the N chip may be respectively provided with a relatively independent operating system, and the operating system of the a chip and the operating system of the N chip may communicate with each other through a communication protocol, which is exemplary: the frame work layer of the operating system of the a-chip and the frame work layer of the operating system of the N-chip may communicate for command and data transmission, such that there are two independent but interrelated subsystems in the display device 200.

As shown in fig. 3, the a chip and the N chip may be connected, communicated, and powered through a plurality of different types of interfaces. The interface types of the interface between the a chip and the N chip may include General-purpose input/output (GPIO), USB interface, HDMI interface, UART interface, and the like. One or more of these interfaces may be used between the a-chip and the N-chip for communication or power transfer. For example, as shown in fig. 3, in the dual hardware system architecture, an external power source (power) may supply power to the N chip, while the a chip may not be supplied with power from the external power source, but may be supplied with power from the N chip.

In addition to the interface for connection with the N chip, the a chip may also contain an interface for connection with other devices or components, such as an MIPI interface for connection with a Camera (Camera), a bluetooth interface, etc., as shown in fig. 3.

Similarly, the N chip may include, in addition to an interface for connecting with the N chip, a VBY interface for connecting with the display TCON (TimerControl Register), an i2S interface for connecting with a power Amplifier (AMP) and a Speaker (Speaker); and IR/Key interfaces, USB interfaces, wifi interfaces, bluetooth interfaces, HDMI interfaces, tuner interfaces, etc.

The dual hardware system architecture of the present application is further described below with reference to fig. 4. It should be noted that fig. 4 is merely an exemplary illustration of the dual hardware system architecture of the present application, and is not meant to limit the present application. In practical applications, both hardware systems may include more or fewer hardware or interfaces as desired.

A hardware architecture block diagram of the display device 200 according to fig. 3 is exemplarily shown in fig. 4. As shown in fig. 4, the hardware system of the display device 200 may include an a-chip and an N-chip, and a module connected to the a-chip or the N-chip through various interfaces.

The N-chip may include a modem 220, a communicator 230, an external device interface 250, a controller 210, a memory 290, a user input interface, a video processor 260-1, an audio processor 260-2, a display 280, an audio output interface 270, a power supply. In other embodiments the N-chip may also include more or fewer modules.

The modem 220 is configured to perform modulation and demodulation processes such as amplification, mixing, and resonance on a broadcast television signal received by a wired or wireless manner, so as to demodulate audio/video data carried in a frequency of a television channel selected by a user and additional information (e.g., an EPG data signal) from a plurality of wireless or wired broadcast television signals. Depending on the broadcasting system of the television signal, the signal paths of the modem 220 may be various, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting, internet broadcasting, or the like; according to different modulation types, the signal adjustment mode can be a digital modulation mode or an analog modulation mode; and the modem 220 may demodulate analog signals and/or digital signals according to the kind of received television signals.

The tuning demodulator 220 is further configured to respond to the user-selected television channel frequency and the television signal carried by the frequency according to the user selection and controlled by the controller 210.

In other exemplary embodiments, the modem 220 may also be in an external device, such as an external set-top box, or the like. In this way, the set-top box outputs television audio and video data after modulation and demodulation, and inputs the data to the display apparatus 200 through the external device interface 250.

Communicator 230 is a component for communicating with external devices or external servers according to various communication protocol types. For example: communicator 230 may include a WIFI module 231, a bluetooth communication protocol module 232, a wired ethernet communication protocol module 233, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module.

The display device 200 may establish a connection of control signals and data signals with an external control device or a content providing device through the communicator 230. For example, the communicator may receive a control signal of the remote controller 100 according to the control of the controller.

The external device interface 250 is a component that provides data transfer between the N-chip controller 210 and the a-chip and other external devices. The external device interface may be connected to an external device such as a set-top box, a game device, a notebook computer, etc., in a wired/wireless manner, and may receive data such as video data (e.g., moving images), audio data (e.g., music), additional information (e.g., EPG), etc., of the external device.

Among other things, the external device interface 250 may include: the High Definition Multimedia Interface (HDMI) terminals are also referred to as HDMI251, composite Video Blanking Sync (CVBS) terminals are also referred to as AV252, analog or digital component terminals are also referred to as any one or more of component 253, universal Serial Bus (USB) terminal 254, red Green Blue (RGB) terminals (not shown in the figures), etc. The present application is not limited in the number and type of external device interfaces.

The controller 210 controls the operation of the display device 200 and responds to user operations by running various software control programs (e.g., an operating system and/or various application programs) stored on the memory 290.

As shown in fig. 4, the controller 210 includes a read only memory RAM213, a random access memory ROM214, a graphics processor 216, a CPU processor 212, a first interface 218, and a communication bus. The RAM213 and the ROM214 are connected to the graphics processor 216, the CPU processor 212, and the first interface 218 via buses.

A ROM213 for storing instructions for various system starts. When the power of the display device 200 starts to be started when the power-on signal is received, the CPU processor 212 executes a system start instruction in the ROM, and copies the operating system stored in the memory 290 into the RAM214 to start to run the start-up operating system. When the operating system is started, the CPU processor 212 copies various applications in the memory 290 to the RAM214, and then starts running the various applications.

A graphics processor 216 for generating various graphical objects, such as: icons, operation menus, user input instruction display graphics, and the like. The device comprises an arithmetic unit, wherein the arithmetic unit is used for receiving various interaction instructions input by a user to carry out operation and displaying various objects according to display attributes. And a renderer that generates various objects based on the results of the operator, and displays the results of rendering on the display 280.

CPU processor 212 is operative to execute operating system and application program instructions stored in memory 290. 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 exemplary embodiments, the CPU processor 212 may include multiple processors. One of the plurality of processors may include one main processor, and a plurality of or one sub-processor. A main processor for performing some operations of the display apparatus 200 in the pre-power-up mode and/or displaying a picture in the normal mode. A plurality of or a sub-processor for performing an operation in a standby mode or the like.

The communication interfaces may include first interface 218-1 through nth interface 218-n. These interfaces may be network interfaces that are connected to external devices via a network.

The controller 210 may control the overall operation of the display apparatus 200. For example: in response to receiving a user command to select a UI object to be displayed on the display 280, the controller 210 may perform an operation related to the object selected by the user command.

Wherein the object may be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, such as: operations to connect to a hyperlink page, document, image, etc., or operations to execute a program corresponding to an icon are displayed. The user command for selecting the UI object may be an input command through various input means (e.g., mouse, keyboard, touch pad, etc.) connected to the display device 200 or a voice command corresponding to a voice uttered by the user.

Memory 290 includes memory for storing various software modules for driving and controlling display device 200. Such as: various software modules stored in memory 290, including: a basic module, a detection module, a communication module, a display control module, a browser module, various service modules and the like.

The base module is a bottom software module for signal communication between the various hardware in the display device 200 and for sending processing and control signals to the upper modules. The detection module is a management module for collecting various information from various sensors or user input interfaces, and 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 a module for controlling the display 280 to display image content, and can be used for playing multimedia image content, UI interface and other information. The communication module is used for controlling and data communication with external equipment. The browser module is a module for performing data communication between the browsing servers. The service module is used for providing various services and various application programs.

Meanwhile, the memory 290 is also used to store received external data and user data, images of various items in various user interfaces, visual effect maps of focus objects, and the like.

A user input interface for transmitting an input signal of a user to the controller 210 or transmitting a signal output from the controller to the user. Illustratively, the control device (e.g., mobile terminal or remote control) may send input signals such as power switch signals, channel selection signals, volume adjustment signals, etc., input by the user to the user input interface, which may then be forwarded to the controller; alternatively, the control device may receive an output signal such as audio, video, or data, which is output from the user input interface via the controller, and display the received output signal or output the received output signal in the form of audio or vibration.

In some embodiments, a user may input a user command through a Graphical User Interface (GUI) displayed on the display 280, and the user input interface receives the user input command 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 recognizes the sound or gesture through the sensor to receive the user input command.

The video processor 260-1 is configured to receive video data, and perform video data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image composition according to a standard codec protocol of an input signal, so as to obtain video data that is directly displayed or played on the display 280.

The video processor 260-1, by way of example, includes a demultiplexing module, a video decoding module, an image compositing module, a frame rate conversion module, a display formatting module, and the like.

The demultiplexing module is used for demultiplexing the input audio/video data stream, such as the input MPEG-2, and demultiplexes the input audio/video data stream into video data, audio data and the like.

And the video decoding module is used for processing the demultiplexed video data, including decoding, scaling and the like.

And an image synthesis module, such as an image synthesizer, for performing superposition mixing processing on the graphic generator and the video picture after the scaling processing according to the GUI signal input by the user or generated by the graphic generator, so as to generate an image signal for display.

A frame rate conversion module, configured to convert a frame rate of an input video, such as converting a frame rate of an input 24Hz, 25Hz, 30Hz, 60Hz video to a frame rate of 60Hz, 120Hz, or 240Hz, where the input frame rate may be related to a source video stream and the output frame rate may be related to an update rate of a display. The input is carried out in a usual format such as a frame inserting mode.

And a display formatting module for converting the signal output by the frame rate conversion module into a signal conforming to a display format such as a display, for example, format converting the signal output by the frame rate conversion module to output an RGB data signal.

A display 280 for receiving image signals from the video processor 260-1 for displaying video content and images and a menu manipulation interface. The display 280 includes a display assembly for presenting pictures and a drive assembly for driving the display of images. The video content may be displayed from a video in a broadcast signal received by the modem 220 or may be displayed from a video input from a communicator or an external device interface. And a display 280 for simultaneously displaying a user manipulation interface UI generated in the display device 200 and used to control the display device 200.

And, depending on the type of display 280, a drive assembly for driving the display. Alternatively, if the display 280 is a projection display, a projection device and projection screen may be included.

The audio processor 260-2 is configured to receive audio data, decompress and decode according to a standard codec protocol of an input signal, and process the audio data such as noise reduction, digital-to-analog conversion, and amplification, so as to obtain audio data that can be played in the speaker 272.

An audio output interface 270 for receiving audio data output from the audio processor 260-2 under the control of the controller 210, which may include a speaker 272 or an external audio output terminal 274 for outputting to a generating device of an external device, such as: external sound terminals or earphone output terminals, etc.

In other exemplary embodiments, video processor 260-1 may include one or more chip components. The audio processor 260-2 may also include one or more chip components.

And, in other exemplary embodiments, the video processor 260-1 and the audio processor 260-2 may be separate chips or integrated with the controller 210 in one or more chips.

And a power supply for providing power supply support for the display device 200 with power inputted from an external power supply under the control of the controller 210. The power supply may include a built-in power circuit installed inside the display apparatus 200, or may be a power supply installed outside the display apparatus 200, such as a power interface providing an external power supply in the display apparatus 200.

Similar to the N chip, the A chip may include a controller 310, a communicator 330, a detector 340, and a memory 390, as shown in FIG. 4. A user input interface, a video processor, an audio processor, a display, an audio output interface may also be included in some embodiments. In some embodiments, there may also be a power supply that independently powers the a-chip.

The communicator 330 is a component for communicating with external devices or external servers according to various communication protocol types. For example: the communicator 330 may include a WIFI module 331, a bluetooth communication protocol module 332, a wired ethernet communication protocol module 333, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module.

The a-chip communicator 330 and the N-chip communicator 230 also interact with each other. For example, the WiFi module 231 in the N-chip hardware system is used to connect to an external network, and generate network communication with an external server, etc. The WiFi module 331 in the a-chip hardware system is used for connecting to the WiFi module 231 of the N-chip, and is not directly connected to an external network or the like, and the a-chip is connected to the external network through the N-chip. Thus, for the user, a display device as in the above embodiment displays a WiFi account to the outside.

The detector 340 is a component of the display device a chip for collecting signals of the external environment or interacting with the outside. The detector 340 may include a light receiver 342, a sensor for capturing ambient light intensity, a display parameter change that may be adapted by capturing ambient light, etc.; the system can also comprise an image collector 341, such as a camera, a video camera and the like, which can be used for collecting external environment scenes, collecting attributes of a user or interacting gestures with the user, adaptively changing display parameters and identifying the gestures of the user so as to realize the interaction function with the user.

An external device interface 350 provides components for data transfer between the controller 310 and the N-chip or other external devices. The external device interface may be connected with external apparatuses such as a set-top box, a game device, a notebook computer, and the like in a wired/wireless manner.

A video processor 360 for processing the relevant video data.

The controller 310 controls the operation of the display device 200 and responds to user operations by running various software control programs stored on the memory 390 (e.g., with an installed third party application, etc.), as well as interactions with the N-chip.

As shown in fig. 4, the controller 310 includes a read only memory ROM313, a random access memory RAM314, a graphics processor 316, a CPU processor 312, a communication interface 318, and a communication bus. The ROM313 and RAM314, and the graphics processor 316, CPU processor 312, and communication interface 318 are connected by a bus.

A ROM313 for storing instructions for various system starts. The CPU processor 312 runs the system boot instructions in ROM and copies the operating system stored in the memory 390 into the RAM314 to begin running the boot operating system. When the operating system is started, the CPU processor 312 copies various applications in the memory 390 to the RAM314, and then starts running the various applications.

The CPU processor 312 is configured to execute instructions of an operating system and applications stored in the memory 390, and to communicate with the N chip, transmit and interact with signals, data, instructions, etc., and execute various applications, data, and contents according to various interaction instructions received from the outside, so as to finally display and play various audio and video contents.

The communication interface 318 is a plurality. These interfaces may be network interfaces connected to external devices via a network, or network interfaces connected to an N-chip via a network.

The controller 310 may control the overall operation of the display apparatus 200. For example: in response to receiving a user command to select a UI object to be displayed on the display 280, the controller 210 may perform an operation related to the object selected by the user command.

A graphics processor 316 for generating various graphical objects, such as: icons, operation menus, user input instruction display graphics, and the like. The device comprises an arithmetic unit, wherein the arithmetic unit is used for receiving various interaction instructions input by a user to carry out operation and displaying various objects according to display attributes. And a renderer that generates various objects based on the results of the operator, and displays the results of rendering on the display 280.

Both the a-chip graphics processor 316 and the N-chip graphics processor 216 are capable of generating various graphics objects. By distinction, if application 1 is installed on the a-chip and application 2 is installed on the N-chip, the a-chip graphics processor 316 generates a graphical object when the user makes a user input instruction at the interface of application 1 and within application 1. When the user is at the interface of application 2 and the instruction of the user input is made within application 2, a graphical object is generated by the graphics processor 216 of the N-chip.

A functional configuration diagram of a display device according to an exemplary embodiment is exemplarily shown in fig. 5.

As shown in fig. 5, the a-chip memory 390 and the N-chip memory 290 are used to store an operating system, application programs, contents, user data, and the like, respectively, and perform system operations for driving the display device 200 and various operations in response to a user under the control of the a-chip controller 310 and the N-chip controller 210. Memory 390 of the a-chip and memory 290 of the N-chip may include volatile and/or nonvolatile memory.

For the N chip, the memory 290 is specifically used for storing an operation program for driving the controller 210 in the display device 200, and storing various application programs built in the display device 200, various application programs downloaded by a user from an external device, various graphic user interfaces related to the application programs, various objects related to the graphic user interfaces, user data information, and various internal data supporting the application programs. The memory 290 is used to store system software such as an Operating System (OS) kernel, middleware and applications, and to store input video data and audio data, as well as other user data.

Memory 290 is specifically used to store drivers and related data for video processor 260-1 and audio processor 260-2, display 280, communicator 230, modem 220, input/output interfaces, and the like.

In some embodiments, memory 290 may store software and/or programs, the software programs used to represent an Operating System (OS) including, for example: a kernel, middleware, an Application Programming Interface (API), and/or an application program. For example, the kernel may control or manage system resources, or functions implemented by other programs (such as the middleware, APIs, or application programs), and the kernel may provide interfaces to allow the middleware and APIs, or applications to access the controller to implement control or management of system resources.

By way of example, the memory 290 includes a broadcast receiving module 2901, a channel control module 2902, a volume control module 2903, an image control module 2904, a display control module 2905, a first audio control module 2906, an external instruction recognition module 2907, a communication control module 2908, a light receiving module, a power control module 2910, an operating system 2911, and other applications 2912, a browser module, and the like. The controller 210 executes various software programs in the memory 290 such as: broadcast television signal receiving and demodulating functions, television channel selection control functions, volume selection control functions, image control functions, display control functions, audio control functions, external instruction recognition functions, communication control functions, optical signal receiving functions, power control functions, software control platforms supporting various functions, browser functions and other various functions.

Memory 390 includes storage for various software modules for driving and controlling display device 200. Such as: various software modules stored in memory 390, including: a basic module, a detection module, a communication module, a display control module, a browser module, various service modules and the like. Since the functions of the memory 390 and the memory 290 are similar, the relevant portions will be referred to as the memory 290, and will not be described herein.

By way of example, the memory 390 includes an image control module 3904, a second audio control module 3906, an external instruction recognition module 3907, a communication control module 3908, a light receiving module 3909, an operating system 3911, and other application programs 3912, a browser module, and the like. The controller 210 executes various software programs in the memory 290 such as: image control function, display control function, audio control function, external instruction recognition function, communication control function, optical signal receiving function, power control function, software control platform supporting various functions, browser function and other various functions.

Differentially, the N-chip external instruction recognition module 2907 and the a-chip external instruction recognition module 3907 may recognize different instructions.

For example, since the image receiving device such as a camera is connected to the a chip, the external command recognition module 3907 of the a chip may include a graphic recognition module 3907-1, where a graphic database is stored in the graphic recognition module 3907-1, and when the camera receives an external graphic command, the camera performs a correspondence with the command in the graphic database to perform command control on the display device. Since the voice receiving device and the remote controller are connected with the N chip, the external instruction recognition module 2907 of the N chip may include a pattern recognition module 2907-1 and a voice recognition module 2907-2, where the voice recognition module 2907-2 stores a voice database, and when the voice receiving device receives an external voice instruction or receives a corresponding relation with an instruction in the voice database, the voice receiving device and the like can control the instruction of the display device. Similarly, the control device 100 such as a remote controller is connected to the N chip, and the key instruction recognition module 2907-3 performs instruction interaction with the control device 100.

A block diagram of the configuration of the software system in the display device 200 according to an exemplary embodiment is schematically shown in fig. 6 a.

For an N-chip, as shown in fig. 6a, operating system 2911, which includes executing operating software for handling various basic system services and for performing hardware-related tasks, acts as a medium for completing data processing between applications and hardware components.

In some embodiments, portions of the operating system kernel may contain a series of software to manage display device hardware resources and to serve other programs or software code.

In other embodiments, portions of the operating system kernel may contain one or more device drivers, which may be a set of software code in the operating system that helps operate or control the devices or hardware associated with the display device. The driver may contain code to operate video, audio and/or other multimedia components. Examples include a display, camera, flash, wiFi, and audio drivers.

Wherein, accessibility module 2911-1 is configured to modify or access an application program to realize accessibility of the application program and operability of display content thereof.

The communication module 2911-2 is used for connecting with other peripheral devices via related communication interfaces and communication networks.

User interface module 2911-3 is configured to provide an object for displaying a user interface for access by each application program, so as to implement user operability.

Control applications 2911-4 are used to control process management, including runtime applications, and the like.

The event delivery system 2914 may be implemented within the operating system 2911 or in the application 2912. In some embodiments, one aspect is implemented within the operating system 2911, while the application 2912 is implemented to monitor various user input events, and to refer to a process program that implements one or more sets of predefined operations in response to recognition results of various events or sub-events, based on the various events.

The event monitoring module 2914-1 is configured to monitor a user input interface to input an event or a sub-event.

The event recognition module 2914-2 is configured to input definitions of various events to various user input interfaces, recognize various events or sub-events, and transmit them to a process for executing one or more corresponding sets of processes.

The event or sub-event refers to an input detected by one or more sensors in the display device 200, and an input of an external control device (such as the control apparatus 100). Such as: various sub-events are input through voice, gesture input sub-events of gesture recognition, sub-events of remote control key instruction input of a control device and the like. By way of example, one or more sub-events in the remote control may include a variety of forms including, but not limited to, one or a combination of key press up/down/left/right/, ok key, key press, etc. And operations of non-physical keys, such as movement, holding, releasing, etc.

The interface layout management module 2913 directly or indirectly receives the user input events or sub-events from the event transmission system 2914, and is used for updating the layout of the user interface, including but not limited to the positions of the controls or sub-controls in the interface, and various execution operations related to the interface layout, such as the size or position of the container, the level, and the like.

Since the functions of the operating system 3911 of the a chip and the operating system 2911 of the N chip are similar, the relevant parts only need to be referred to the operating system 2911, and the description thereof will be omitted.

As shown in fig. 6b, the application layer of the display device contains various applications that may be executed on the display device 200.

The N-chip application layer 2912 may include, but is not limited to, one or more applications such as: video on demand applications, application centers, gaming applications, etc. The application layer 3912 of the a-chip may include, but is not limited to, one or more applications such as: live television applications, media center applications, etc. It should be noted that what application programs are respectively contained on the a chip and the N chip are determined according to the operating system and other designs, and the invention does not need to specifically limit and divide the application programs contained on the a chip and the N chip.

Live television applications can provide live television through different signal sources. For example, a live television application may provide television signals using inputs from cable television, radio broadcast, 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.

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

The media center application may provide various applications for playing multimedia content. For example, a media center may be a different service than live television or video on demand, and a user may access various images or audio through a media center application.

An application center may be provided to store various applications. The application may be a game, an application, or some other application associated with a computer system or other device but operable on a display device. The application center may obtain these applications from different sources, store them in local storage, and then be run on the display device 200.

A schematic diagram of a user interface in a display device 200 according to an exemplary embodiment is illustrated in fig. 7. As shown in fig. 7, the user interface includes a plurality of view display areas, illustratively, a first view display area 201 and a play screen 202, wherein the play screen includes a layout of one or more different items. And a selector in the user interface indicating that an item is selected, the position of the selector being movable by user input to change selection of a different item.

It should be noted that the multiple view display areas may present different levels of display images. For example, the first view display region may present video chat item content and the second view display region may present application layer item content (e.g., web page video, VOD presentation, application screen, etc.).

Optionally, the presentation of different view display areas has priority difference, and the display priorities of the view display areas are different among the view display areas with different priorities. If the priority of the system layer is higher than that of the application layer, when the user uses the acquisition selector and the picture switching in the application layer, the picture display of the view display area of the system layer is not blocked; and when the size and the position of the view display area of the application layer are changed according to the selection of the user, the size and the position of the view display area of the system layer are not affected.

The same level of display may be presented, in which case the selector may switch between the first view display region and the second view display region, and the size and position of the second view display region may change as the size and position of the first view display region changes.

Since the first chip and the second chip may have independent operating systems installed therein, there are two independent subsystems in the display device 200. For example, android (Android) and various types of APP can be independently installed on each of the first chip and the N, so that each chip can achieve a certain function, and the first chip and the second chip can cooperatively achieve a certain function.

The dual hardware display device may implement the above functions simultaneously. The dual hardware display device includes a first chip and a second chip, and since the second chip is connected to the display screen and the speaker respectively, the sound and the image of the first chip can be output through the second chip, in some embodiments, the first chip is loaded with a plurality of applications, but the first application and the second application have different requirements for sound delay, the first application needs quick output of sound, such as a singing-type K song application, a chat-type video communication application, and these applications need quick output of sound compared with audio-visual applications (such as an aide, a you cool application, etc.) or education applications (a juggling application, a daily yoga, a magic child, etc.), especially when audio exists in the first application. Taking Karaoke application as an example, the network video application and the Karaoke application can be installed on the first chip, and a user can perform Karaoke through the Karaoke application of the display device; the user may view the web video through a web video application of the display device. The second chip is used for receiving the cable television, and a user can watch the cable television through the display device.

In some embodiments, the second application may also be an application loaded in the second chip, and since there is less codec in the process of the first chip, delay or sound effect processing may be performed on the second application without delaying sound and picture synchronization. The first application in the first chip then requires a fast output of sound.

When a user watches the network video, the network video application is installed on the first chip. The network video application receives a multimedia signal over a network, wherein the multimedia signal comprises: video data and audio data. The first chip sends the received multimedia signal to the second chip through the HDMI channel. The second chip performs a series of image quality processes such as white balance and motion compensation on the video data transmitted by the first chip. The process of processing these image quality tends to consume some time, which results in the time for the audio data to reach the speaker being less than the time for the video data to reach the display, and the problem of "asynchronization of audio and video" occurs, so that delay processing is required for the audio data.

Further, the requirements of the user on the sound played by the speaker are gradually increased, and the user puts new requirements on the sound, for example, the sound which the user wants to play can improve the sense of realism, atmosphere, or the sound which plays has a pleasant hearing effect. Audio data is usually subjected to sound effect processing, and sound which can be played meets the requirements of users. It is to be noted that, although the process of the sound effect processing consumes a certain time, the process of the sound effect processing consumes a time less than or equal to the time consumed by the process of the image quality processing. Accordingly, when a user views a network video through a display device, it is necessary to perform delay processing and/or sound effect processing on audio data with the display device.

For a user to make a song through the display device K. The K song application is installed on the first chip. When the Karaoke application is started, the Karaoke application transmits video data containing lyrics and a time axis of the song to the second chip, the second chip decodes the video data, and the decoded video data is transmitted to the display screen for display. The user starts singing while seeing the time axis appearing on the display screen. At this time, the microphone collects the audio data of the user, and transmits the audio data of the user to the K song application in the first chip for mixing with the background sound, and the first chip transmits the audio data of the user to the second chip, so that certain delay is necessarily caused between the audio data of the user and the lyrics displayed on the time axis in the process. At this time, the second chip continues to perform delay processing and/or sound effect processing on the audio data of the user, which inevitably leads to increased delay between the audio data of the user and lyrics displayed on the time axis, resulting in poor user experience. In some embodiments, the local sound may be directly played through the N chip, in other embodiments, the sound sent from the opposite end during chorus must pass through the first application in the first chip and then be forwarded to the second chip for processing and outputting, but because the time axis is provided locally, in order to solve the time delay between the audio and the video, the present application may not process the sound sent from the first chip, so as to speed up the output of the sound.

In order to meet various demands of users on a display device, a first sound reproduction method according to an embodiment of the present application, specifically, referring to fig. 8, includes the following steps:

the display device includes a speaker, a second chip connected to the speaker, and a first chip connected to the second chip:

s101, the first chip sends a first starting instruction representing the starting of a first application or a second starting instruction representing the starting of a second application to the second chip.

Wherein the delay requirement of the first application for sound reproduction is less than the delay requirement of the second application for sound reproduction;

wherein in some embodiments, the start instruction is configured to be a start broadcast issued by the first chip upon detection of start of an application;

in the technical scheme that this application shows, when the third party APP of installation on the first chip starts, first chip can send corresponding start-up broadcasting, start-up broadcasting is used for informing that the corresponding APP of second chip has started.

Wherein the initiation broadcast includes a first initiation broadcast and a second initiation broadcast, the first initiation broadcast being an initiation broadcast corresponding to a "low latency" application (first application). The second start-up broadcast is a start-up broadcast corresponding to a "non-low latency" application (second application). The low-delay application can be a series of applications with high requirements on real-time performance of sound, such as a Karaoke application and a conference application. The "non-low latency" application may be a series of applications such as video applications that require high quality sound.

When the low-delay application is started, the starting instruction sent by the first chip is a first starting instruction. Correspondingly, when the 'non-low-delay' application is started, the starting instruction sent by the first chip is a second starting instruction.

In some embodiments, the N-chip determines whether the first start-up broadcast and the second start-up broadcast require low latency first start-up instructions or no latency second start-up instructions.

In some embodiments, a "low latency" application refers to an application in the operating system of the first chip that has a relatively high timeliness requirement for sound, and a "non-low latency" application refers to an application in the operating system of the first chip that has a relatively low timeliness requirement for sound and a relatively high sound quality requirement. The timeliness requirement of the 'non-low delay' application for the output sound of the display device is smaller than the timeliness requirement of the 'low delay' application for the output sound of the display device.

In some embodiments, the a chip may send a first start instruction to the second chip when the first application is started, and may also send a second start instruction to the second chip when the second reference is started, where the first start instruction and the second start instruction may be sent by the first chip according to a preset correspondence.

S1021, the second chip responds to the first starting instruction to enable the sound processing module to be closed, so that the sound processing module does not process the audio data received from the first chip;

wherein the sound processing module comprises: an audio delay unit and/or an audio processing unit.

In some embodiments, the first chip sending the start command refers to sending a start command to a frame work layer of an operating system on the second chip after the frame work layer of the operating system on the first chip detects a start broadcast corresponding to an application of the application layer, where the second chip controls the sound processing module to be turned on or turned off in response to the command received by the frame work layer.

In some embodiments, the sending of the start command may also be implemented by an application sending, and a specific sending manner is not limited herein.

In some embodiments, the frame layer of the first on-chip operating system issues low-latency instructions (first launch instructions) in response to launching of the karaoke application, and issues non-low-latency instructions (second launch instructions) in response to non-karaoke application. That is, the first application is a karaoke application and the second application is a non-karaoke application that is highly tolerant to sound delay (i.e., the sound delay requirement is higher than that of a karaoke application). In some embodiments the Karaoke application is an application that may be used by a user to sing songs.

In a feasible embodiment, the second chip receives the start instruction, and in response to receiving the first start instruction, the second chip may turn off the audio delay unit. So that the sound processing module does not perform sound delay on the audio data received from the first chip

In a feasible embodiment, the second chip receives the start instruction, and in response to receiving the first start instruction, the second chip may also turn off the sound effect processing unit. So that the sound processing module does not perform sound effect processing on the audio data received from the first chip.

In a feasible embodiment, the second chip receives the start instruction, and in response to receiving the first start instruction, the second chip may also turn off the audio delay unit and the audio effect processing unit. So that the sound processing module does not perform sound delay and sound effect processing on the audio data received from the first chip.

The audio delay unit is an audio delay parameter adjusting unit. The specific process of closing the audio delay unit is as follows: and the second chip receives the starting instruction, responds to the starting instruction as a low-delay instruction, and adjusts a delay parameter corresponding to the audiodelay to zero by the sound processing module.

Alternatively, after the low-delay application finishes, if the parameter corresponding to the audio delay unit is continuously zero, when the user watches the network television, the phenomenon that the picture and the sound are inconsistent can occur. In order to improve the experience of the user, according to the technical scheme shown in the embodiment of the application, the second chip counts the duration of the voice information input by the user in real time, and if the duration is longer than the preset time threshold, the low-delay application ending process is proved. In this case the second chip adjusts the parameters corresponding to the audio delay unit back to the default values.

The specific process of closing the sound effect processing unit is as follows: the second chip receives the starting instruction and responds to the starting instruction as a first starting instruction, and the second chip closes a processing channel corresponding to sound effect processing so as to close a sound effect processing function. The sound processing module reduces sound effect processing (namely reduces unnecessary sound effects) on the audio data received by the first chip, thereby ensuring that the sound data quickly passes through the second chip and reducing delay.

In a feasible embodiment, the second chip receives the start instruction and responds to the start instruction as the first start instruction, the second chip simultaneously closes the audio delay unit and the audio processing unit, and the second chip does not perform audio processing on the audio data received by the first chip. Simultaneously, the two chips adjust the parameters corresponding to the audiodelay to zero. Thereby ensuring that the sound data quickly passes through the second chip and reducing delay.

In some embodiments, the sound effect processing unit includes a basic sound effect processing unit and a special sound effect processing unit, where the first basic sound effect processing unit is a unit where all sounds need to be processed, and the special sound effect unit is a unit that can be turned off in response to a first start instruction and turned on in response to a second start instruction. The basic sound effect processing unit may include a gain subunit of audio, and may further include a functional subunit such as a noise reduction subunit, and the special sound effect processing unit may include a surround sound subunit, a Du Bizi unit, a bass enhancement subunit, and the like.

And S1031, sending the audio data output by the second chip sound effect processing unit to a loudspeaker.

In some embodiments, the sound may be output by the sound effect processing unit without processing, and in some embodiments the sound may need to be processed by the basic sound effect processing unit. S1022, the second chip responds to the second starting instruction, and the processing module is started, so that the sound processing module processes the audio data received from the first chip;

the second start instruction is configured to be a second start broadcast that is sent by the first chip when a second application start is detected.

For example, for an application scenario where video is being viewed, the audio data and video data of a third party application on a first chip are transmitted to a second chip at the same time, but the video data needs to be decoded on the second chip, which results in less time for the audio data to reach the speaker than for the audio data to reach the display device. Therefore, in the display device shown in the embodiment of the present application, after the second chip receives the start instruction, the second chip adjusts the parameter corresponding to the audio delay unit to a preset value in response to the start instruction being the second start instruction. So that the time taken for the audio data to reach the loudspeaker is equal to the time for the audio data to reach the display device, and the effect of sound-picture synchronization is achieved. And meanwhile, the sound effect processing unit is started to process corresponding sound data so as to give a better experience to the user.

The second chip transmits the audio data output from the sound processing module to the speaker S1032.

According to the technical scheme, the second chip receives the starting instruction and responds to the starting instruction as the first starting instruction, the second chip closes the sound processing module, so that the second chip does not delay audio data received from the first chip, the audio data is output from the loudspeaker rapidly, the occurrence of the problem of sound delay of the display device under the 'low-delay situation' is successfully avoided, and the experience of a user is improved.

In some embodiments, after the second chip receives the start instruction, the second chip responds to the start instruction as the first start instruction, the second chip obtains a second chip sampling frequency, and sends the second chip sampling frequency to the first chip, so that the first chip adjusts the first chip output frequency to the second chip sampling frequency.

The second chip receives the starting instruction and responds to the starting instruction as a first starting instruction, the second chip acquires information such as the sampling rate of the self resampling module and sends the second chip sampling rate and channel information to the first chip, the first chip communication module analyzes the received related information, the sampling rate and channel information of the second chip are extracted, and the first chip adjusts the output frequency to the sampling frequency of the second chip. The sampling frequency of the second chip is ensured to be the same as the output frequency of the first chip through the means. In the resampling process of the first chip, the sampling rate channel information of the A and the second chip is kept consistent, so that the sound data can be ensured to pass through the second chip quickly, and the delay is reduced.

In some embodiments, after the second chip receives the start instruction, the second chip responds to the start instruction as a first start instruction, the second chip obtains a second chip sampling frequency, and sends the second chip sampling frequency to an associated APP (K song application), so that the associated APP adjusts an APP output frequency to the second chip sampling frequency, wherein the first chip output frequency refers to a frequency of the audio data sent to the second chip by the first chip, and the second chip sampling frequency refers to a sampling frequency of the audio data received from the first chip by the second chip.

After the second chip receives the starting instruction, the second chip responds to the starting instruction as a first starting instruction, the second chip acquires information such as the sampling rate of the self sampling module, the information such as the sampling rate of the second chip is sent to the first chip, the first chip analyzes the received information such as the sampling rate, extracts the sampling rate and channel information of the second chip, and then sends broadcasting, wherein the broadcasting carries the information such as the sampling rate of the second chip, so that relevant APP (for example, K song APP) is notified. And the related APP receives the broadcast content, adjusts the output frequency of the related APP according to the sampling rate of the second chip, and transmits the audio data. The sampling frequency of the second chip is ensured to be the same as the APP output frequency through the means. And the output frequency of the related APP and the sampling rate of the second chip are kept consistent, so that sound data can be ensured to pass through the second chip quickly, and delay is reduced.

A second aspect of the embodiments of the present application shows a display device, specifically referring to fig. 9, where the display device includes a speaker, a second chip connected to the speaker, and a first chip connected to the second chip:

the first chip and the second chip can be connected through a USB interface, a network interface, a UART interface and an HDMI interface.

The function of each interface is described in detail below.

According to the technical scheme, the first chip is connected with the camera, and the camera is used for collecting image information of a user in real time in the video chat process. The first chip and the second chip can be connected through a USB interface, the first chip obtains image information, and the USB is mainly used for transmitting image data collected by the camera to the second chip through the USB.

According to the technical scheme, the first chip and the second chip can be connected through the network interface, the network interface mainly plays a role that the second chip and the first chip can be connected with the Internet at the same time, and keys of the remote controller are transmitted to the first chip through the network interface. The network interface is also used for communication between the first chip and the second chip.

According to the technical scheme, the first chip and the second chip can be connected through the UART interface, and the UART interface is used for communication between the first chip and the second chip.

According to the technical scheme, the first chip and the second chip can be connected through an HDMI interface. The HDMI interface mainly transmits signals received by the first chip to the second chip, wherein the signals comprise: network audio and video, image information collected by a camera, and the like. The signal received by the first chip is transmitted to the second chip through the second interface, and it is noted that, in the technical solution shown in the embodiment of the present application, the second interface is not opened to the user.

The first chip is used for sending a starting instruction to the second chip, wherein the starting instruction is configured as a first starting broadcast sent by the first chip when the first application is detected to be started;

a second chip connected to the speaker and the first chip, respectively, the second chip being configured to turn off the sound processing module in response to receiving the first start instruction, such that the sound processing module does not process audio data received from the first chip; responsive to receiving the second initiation instruction, causing a processing module to be turned on so that the sound processing module can process audio data received from the first chip; and sending the audio data output by the sound processing module to the loudspeaker.

Optionally, the second chip is further configured to close the audio delay unit in the second chip, so that the sound processing module does not perform sound delay on the audio data received from the first chip.

Optionally, the sound processing module includes an audio delay unit, and in response to receiving the first start instruction, the sound processing module is turned off, so that the sound processing module does not process the audio data received from the first chip includes: and the second chip responds to the first starting instruction, and the audio delay unit adjusts the corresponding delay parameter to zero so that the first voice numerical control unit does not delay the audio data received by the second chip from the first chip.

Optionally, the sound processing module further includes an audio processing unit, and the turning off the sound processing module so that the sound processing module does not process the audio data received from the first chip includes: and enabling the sound processing unit to close the sound processing function so that the sound processing module does not perform sound processing on the audio data received from the first chip.

Optionally, the second chip is further configured to obtain a second chip sampling frequency in response to receiving the first start instruction, and send the second chip sampling frequency to the first chip, so that the first chip adjusts the first chip output frequency to the second chip sampling frequency, where the first chip output frequency is a frequency of the audio data sent by the first chip to the second chip, and the second chip sampling frequency is a sampling frequency of the audio data received by the second chip from the first chip.

Optionally, the second chip is further configured to obtain a second chip sampling frequency in response to receiving the first start instruction, and send the second chip sampling frequency to the first application, so that the first application is related to adjust the first application output frequency to a second chip sampling frequency, where the first application output frequency is a frequency of the audio data output by the first application that generates the audio data in the first chip, and the second chip sampling frequency is a sampling frequency of the second chip for the audio data received from the first chip.

It should be understood that the terms "first," "second," "third," and the like in the description and in the claims and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate, such as where appropriate, for example, implementations other than those illustrated or described in accordance with embodiments of the present application.

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

Claims

1. A display device, characterized by comprising: the device comprises a first controller, a second controller connected with the first controller and an audio output interface connected with the second controller;

a first controller configured to: sending a first starting instruction for representing the starting of a first application or a second starting instruction for representing the starting of a second application to a second controller, wherein the time delay requirement of the first application on sound reproduction is smaller than that of the second application on sound reproduction;

the second controller is configured to: in response to receiving the first start instruction, turning off a sound processing module so that the sound processing module does not process audio data received from the first controller; responsive to receiving the second start instruction, enabling a processing module to start, so that the sound processing module processes the audio data received from the first controller; and sending the audio data output by the sound processing module to the audio output interface.

2. The display device of claim 1, wherein the sound processing module comprises an audio delay unit, the second controller configured to:

In the step of turning off the sound processing module in response to receiving the first start-up instruction so that the sound processing module does not process the audio data received from the first controller, in response to receiving the first start-up instruction, the audio delay unit adjusts the corresponding delay parameter to zero so that the audio delay unit does not delay processing the audio data received from the first controller by the second controller.

3. The display device according to claim 1 or 2, wherein the sound processing module further comprises an audio processing unit, the second controller being configured to:

in the step of turning off the sound processing module so that the sound processing module does not process the audio data received from the first controller, the sound processing unit is turned off the sound processing function so that the sound processing module does not perform sound processing on the audio data received from the first controller.

4. The display device of claim 1, wherein the second controller is configured to:

and in response to receiving the first starting instruction, acquiring a second controller sampling frequency, and transmitting the second controller sampling frequency to the first controller so that the first controller adjusts the first controller output frequency to the second controller sampling frequency, wherein the first controller output frequency refers to the frequency of the audio data transmitted to the second controller by the first controller, and the second controller sampling frequency refers to the sampling frequency of the audio data received from the first controller by the second controller.

5. The display device of claim 1, wherein the second controller is configured to:

and in response to receiving the first starting instruction, acquiring a second controller sampling frequency, and sending the second controller sampling frequency to the first application so that the first application output frequency is adjusted to be the second controller sampling frequency by the first application, wherein the first application output frequency refers to the frequency of the audio data output by the first application generating the audio data in the first controller, and the second controller sampling frequency refers to the sampling frequency of the audio data received from the first controller by the second controller.

6. A sound reproducing method of a display device, the display device including an audio output interface, a second controller connected to the audio output interface, and a first controller connected to the second controller, the sound reproducing method comprising:

the first controller sends a first starting instruction for representing the starting of a first application or a second starting instruction for representing the starting of a second application to the second controller, wherein the time delay requirement of the first application on sound reproduction is smaller than that of the second application on sound reproduction;

The second controller causes the sound processing module to be turned off in response to receiving the first start instruction so that the sound processing module does not process the audio data received from the first controller; the second controller responds to the second starting instruction to enable a processing module to be started, so that the sound processing module processes the audio data received from the first controller;

and the second controller sends the audio data output by the sound processing module to the audio output interface.

7. The method of claim 6, wherein the sound processing module includes an audio delay unit, and wherein the second controller, in response to receiving the first start-up instruction, causes the sound processing module to shut down such that the sound processing module does not process audio data received from the first controller includes:

and the second controller responds to the first starting instruction, and the audio delay unit adjusts the corresponding delay parameter to zero so that the audio delay unit does not delay the audio data received by the second controller from the first controller.

8. The method of claim 6 or 7, wherein the sound processing module further comprises a sound effect processing unit, the turning off the sound processing module such that the sound processing module does not process the audio data received from the first controller comprises:

The sound processing unit turns off the sound processing function so that the sound processing module does not perform sound processing on the audio data received from the first controller.

9. The method as recited in claim 6, further comprising:

the second controller responds to the first starting instruction, acquires a second controller sampling frequency, and sends the second controller sampling frequency to the first controller so that the first controller adjusts the first controller output frequency to the second controller sampling frequency, wherein the first controller output frequency refers to the frequency of the audio data sent to the second controller by the first controller, and the second controller sampling frequency refers to the sampling frequency of the audio data received from the first controller by the second controller.

10. The method as recited in claim 6, further comprising:

the second controller responds to the first starting instruction, acquires a second controller sampling frequency, and sends the second controller sampling frequency to the first application so that the first application output frequency is adjusted to be the second controller sampling frequency by the first application, wherein the first application output frequency refers to the frequency of the audio data output by the first application generating the audio data in the first controller, and the second controller sampling frequency refers to the sampling frequency of the audio data received from the first controller by the second controller.