CN112073803A

CN112073803A - Sound reproduction method and display equipment

Info

Publication number: CN112073803A
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: 2020-12-11
Anticipated expiration: 2039-09-06
Also published as: CN112073803B

Abstract

The embodiment of the application shows a sound reproduction method and display equipment, and is particularly suitable for a social television. According to the technical scheme shown in the embodiment of the application, a 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 a second chip, wherein the time delay requirement of the first application on sound reproduction is smaller than the time delay requirement of the second application on sound reproduction; the second chip responds to the first starting instruction and enables 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 enables the processing module to be started in response to receiving a second starting instruction, so that the sound processing module processes the audio data received from the first chip; the second chip sends the audio data output by the sound processing module to the loudspeaker so as to perform different processing on the sound with different applications, thereby improving the experience of the user.

Description

Sound reproduction method and display equipment

This application claims priority to a chinese patent application filed by the national intellectual property office on 10/6/2019 under application number 201910498218.7. The entire contents of which are incorporated by reference in the present application.

Technical Field

The embodiment of the application relates to a display technology. And more particularly, to a sound reproducing method and a display apparatus.

Background

Currently, since a display device can provide a user with a play picture such as audio, video, picture, and the like, it is receiving a wide attention of the user. With the development of big data and artificial intelligence, the functional requirements of users on display devices are increasing day by day. For example, some users want to watch karaoke through a display device, some users want to watch high-definition cable television through the display device, and some users want to watch network television through the display device.

Disclosure of Invention

In view of the above technical problems, it is an object of the present application to provide a sound reproducing method and a display apparatus.

A first aspect of an embodiment of the present application shows a sound reproduction method, which is applied to a display device, 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 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 the time delay requirement of the second application on sound reproduction;

the second chip responds to the first starting instruction and enables 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 enables a processing module to be started in response to receiving the second starting instruction, 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 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 a first application or a second starting instruction for 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 the time delay requirement of the second application on sound reproduction;

the second chip is connected with the loudspeaker and the first chip respectively, and the second chip is configured to respond to the reception of the first starting instruction and close the sound processing module so that the sound processing module does not process the audio data received from the first chip; in response to receiving the second start instruction, turning on a processing module 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 reproducing method and a display apparatus. 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, and the audio data are rapidly output from the loudspeaker. Meanwhile, the second chip enables the processing module to be started in response to the second starting instruction, so that the sound processing module processes the audio data received from the first chip, and the experience of a user is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus according to an embodiment;

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

fig. 3 is a block diagram exemplarily showing a hardware configuration of the display device 200 according to the embodiment;

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

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

fig. 6a schematically shows a software configuration in the display device 200 according to an embodiment;

fig. 6b schematically shows a configuration of an application in the display device 200 according to an embodiment;

fig. 7 schematically illustrates a user interface in the display device 200 according to an embodiment;

fig. 8 is a flow chart illustrating a sound reproduction method according to an embodiment;

fig. 9 is a block diagram schematically illustrating a structure of a display device according to an embodiment.

Detailed Description

To make the objects, technical solutions and advantages of the exemplary embodiments of the present application clearer, 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 obvious that the described exemplary embodiments are only a part of the embodiments of the present application, but not all the embodiments.

For the convenience of users, various external device interfaces are usually provided on the display device to facilitate connection of different peripheral devices or cables to implement corresponding functions. When a high-definition camera is connected to an interface of the display device, if a hardware system of the display device does not have a hardware interface of a high-pixel camera receiving the source code, data received by the camera cannot be displayed on a display screen of the display device.

Furthermore, due to the hardware structure, the hardware system of the conventional display device only supports one path of hard decoding resources, and usually only supports video decoding with a resolution of 4K at most, so when a user wants to perform video chat while watching a network television, the user needs to use the hard decoding resources (usually GPU in the hardware system) to decode the network video without reducing the definition of the network video screen, and in this case, the user can only process the video chat screen by using a general-purpose processor (e.g. CPU) in the hardware system to perform soft decoding on the video.

The soft decoding is adopted to process the video chat picture, so that the data processing burden of a CPU (central processing unit) can be greatly increased, and when the data processing burden of the CPU is too heavy, the problem of picture blocking or unsmooth flow can occur. Further, due to the data processing capability of the CPU, when the CPU performs soft decoding on the video chat screen, multi-channel video calls cannot be generally implemented, and when a user wants to perform video chat with multiple other users in the same chat scene, access is blocked.

In view of the above aspects, to overcome the above drawbacks, the present application discloses a dual hardware system architecture to implement multiple channels of video chat data (at least one channel of local video).

The concept to which the present application relates will be first explained below with reference to the drawings. It should be noted that the following descriptions of the concepts are only for the purpose of facilitating understanding of the contents of the present application, and do not represent limitations on the 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 and/or software code that is capable of performing the functionality associated with that element.

The term "remote control" as used in the embodiments of the present application refers to a component of an electronic device (such as the display device disclosed in the present application) that is capable of wirelessly controlling the electronic device, typically over a short distance. The component may typically be connected to the electronic device 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 the common remote control device with the user interface in the touch screen.

The term "gesture" as used in the embodiments of the present application refers to a user behavior used to express an intended idea, action, purpose, or result through a change in hand shape or an action such as hand movement.

The term "hardware system" used in the embodiments of the present application may refer to a physical component having computing, controlling, storing, inputting and outputting functions, which is formed by a mechanical, optical, electrical and magnetic device such as an Integrated Circuit (IC), a Printed Circuit Board (PCB) and the like. In various embodiments of the present application, a hardware system may also be referred to as a motherboard (or chip).

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus according to an embodiment. As shown in fig. 1, a user may operate the display apparatus 200 through the control device 100.

The control device 100 may be a remote controller 100A, which can communicate with the display device 200 through an infrared protocol communication, a bluetooth protocol communication, a ZigBee (ZigBee) protocol communication, or other short-range communication, and is used to control the display device 200 in a wireless or other wired manner. The user may input a user instruction through a key on a remote controller, voice input, control panel input, etc., to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement the function of controlling the display device 200.

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

For example, the mobile terminal 100B and the display device 200 may each have a software application installed thereon, so that connection communication between the two can be realized through a network communication protocol, and the purpose of one-to-one control operation and data communication can be further realized. Such as: a control instruction protocol can be established between the mobile terminal 100B and the display device 200, a remote control keyboard is synchronized to the mobile terminal 100B, and the function of controlling the display device 200 is realized by controlling a user interface on the mobile terminal 100B; the audio and 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 apparatus 200 may also perform data communication with the server 300 through various communication means. In various embodiments of the present application, the display device 200 may be allowed to be communicatively coupled to the server 300 via a local area network, a wireless local area network, or other network. The server 300 may provide various contents and interactions to the display apparatus 200.

Illustratively, the display device 200 receives software Program updates, or accesses a remotely stored digital media library by sending and receiving information, and Electronic Program Guide (EPG) interactions. The servers 300 may be a group or groups, and may be one or more types of servers. Other web service contents such as a video on demand and an advertisement service are provided through the server 300.

The display device 200 may be, for example, a liquid crystal display, an oled (organic Light Emitting diode) display, or a projection display device; on the other hand, the display device can be a display system consisting of an intelligent television or a display and a set-top box. The specific display device type, size, resolution, etc. are not limiting, and those skilled in the art will appreciate that the display device 200 may be modified in performance and configuration as desired.

The display apparatus 200 may additionally provide an intelligent network tv function that provides a computer support function in addition to the broadcast receiving tv function. Examples include a web tv, a smart tv, an Internet Protocol Tv (IPTV), and the like. In some embodiments, the display device may not have a broadcast receiving television function.

As shown in fig. 1, the display device may be connected or provided with a camera, and is configured to present a picture taken 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 on the display device in a full screen mode, a half screen mode or any optional area.

As an optional connection mode, the camera is connected with the display rear shell through the connecting plate, is fixedly installed in the middle of the upper side of the display rear shell, and can be fixedly installed at any position of the display rear shell as an installable mode, so that an image acquisition area is ensured not to be shielded by the rear shell, for example, the display orientation of the image acquisition area is the same as that of the display equipment.

As another alternative connection mode, the camera is connected to the display rear shell through a connection board or other conceivable connector, the camera is capable of lifting, the connector is provided with a lifting motor, when a user wants to use the camera or an application program wants to use the camera, the camera is lifted out of the display, and when the camera is not needed, the camera can be embedded in the rear shell to protect the camera from being damaged.

As an embodiment, the camera adopted in the present application may have 1600 ten thousand pixels, so as to achieve the purpose of ultra high definition display. In actual 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 by different application scenes of the display device can be fused in various different modes, so that the function which cannot be realized by the traditional display device is achieved.

Illustratively, 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 as a background frame over which a window for video chat is displayed. The function is called 'chat while watching'.

Optionally, in a scene of "chat while watching", at least one video chat is performed across terminals while watching a live video or a network video.

In another example, a user can conduct a video chat with at least one other user while entering the educational application for learning. For example, a student may interact remotely with a teacher while learning content in an educational application. Vividly, this function can be called "chatting while learning".

In another example, a user conducts a video chat with a player entering a card game while playing the game. For example, a player may enable remote interaction with other players when entering a gaming application to participate in a game. Figuratively, this function may be referred to as "watch while playing".

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

Optionally, in the motion sensing game (such as ball hitting, boxing, running and dancing), the human posture and motion, limb detection and tracking and human skeleton key point data detection are obtained through the camera, and then the human posture and motion, the limb detection and tracking and the human skeleton key point data detection are fused with the animation in the game, so that the game of scenes such as sports and dancing is realized.

In another example, a user may interact with at least one other user in a karaoke application in video and voice. Vividly, this function can be called "sing while watching". Preferably, when at least one user enters the application in a chat scenario, a plurality of users can jointly complete recording of a song.

In another example, a user may turn on a camera locally to take pictures and videos, figurative, which may be referred to as "looking into the mirror".

In other examples, more or less functionality may be added. The function of the display device is not particularly limited in the present application.

Fig. 2 is a block diagram schematically showing the configuration of the control apparatus 100 according to the exemplary embodiment. 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 convert the operation instruction into an instruction recognizable and responsive by the display device 200, and to mediate interaction between the user and the display device 200. Such as: the user operates the channel up/down key on the control device 100, and the display device 200 responds to the channel up/down operation.

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

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

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

The communicator 130 enables communication of control signals and data signals with the display apparatus 200 under the control of the controller 110. Such as: the received user input signal is transmitted to the display apparatus 200. The 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, a key 144, and the like. Such as: the user can realize a user instruction input function through actions such as voice, touch, gesture, pressing, and the like, and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the instruction signal to the display device 200.

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

In some embodiments, the control device 100 includes at least one of a communicator 130 and an output interface. The communicator 130 is configured in the control device 100, such as: the modules of WIFI, bluetooth, NFC, etc. may send the user input command to the display device 200 through the WIFI protocol, or the bluetooth protocol, or the NFC protocol code.

And a memory 190 for storing various operation programs, data and applications for driving and controlling the control apparatus 100 under the control of the controller 110. The memory 190 may store various control signal commands input by a user.

And a power supply 180 for providing operational power support to the components of the control device 100 under the control of the controller 110. A battery and associated control circuitry.

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

When a dual hardware system architecture is adopted, the mechanism relationship of the hardware system can be shown in fig. 3. For convenience of description, one hardware system in the dual hardware system architecture will be referred to as a first hardware system or a system, a-chip, and the other hardware system will be referred to as a second hardware system or N-system, N-chip. The chip A comprises a controller of the chip A and various modules connected with the controller of the chip A through various interfaces, and the chip N comprises a controller of the chip N and various modules connected with the controller of the chip N through various interfaces. The chip a and the chip N may each have a relatively independent operating system, and the operating system of the chip a and the operating system of the chip N may communicate with each other through a communication protocol, which is as follows: the frame layer of the operating system of the a-chip and the frame layer of the operating system of the N-chip can communicate to transmit commands and data, so that two independent subsystems, which are associated with each other, exist 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 type of the interface between the a chip and the N chip may include a General-purpose input/output (GPIO) interface, a USB interface, an HDMI interface, a UART interface, and the like. One or more of these interfaces may be used for communication or power transfer between the a-chip and the N-chip. For example, as shown in fig. 3, in the dual hardware system architecture, the N chip may be powered by an external power source (power), and the a chip may not be powered by the external power source but by the N chip.

In addition to the interface for connecting with the N chip, the a chip may further include an interface for connecting other devices or components, such as an MIPI interface for connecting a Camera (Camera) shown in fig. 3, a bluetooth interface, and the like.

Similarly, in addition to the interface for connecting with the N chip, the N chip may further include an VBY interface for connecting with a display screen tcon (timercontrol register), and an i2S interface for connecting with a power Amplifier (AMP) and a Speaker (Speaker); and an IR/Key interface, a USB interface, a Wifi interface, a bluetooth interface, an HDMI interface, a Tuner interface, and the like.

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 only an exemplary illustration of the dual hardware system architecture of the present application, and does not represent a limitation of the present application. In actual practice, both hardware systems may contain more or less hardware or interfaces as desired.

A block diagram of the hardware architecture 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 tuner demodulator 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, and a power supply. The N-chip may also include more or fewer modules in other embodiments.

The tuner demodulator 220 is configured to perform modulation and demodulation processing such as amplification, mixing, resonance and the like on a broadcast television signal received in a wired or wireless manner, so as to demodulate audio and 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 broadcast system of the television signal, the signal path of the tuner 220 may be various, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting, internet broadcasting, or the like; according to different modulation types, the adjustment mode of the signal can be a digital modulation mode or an analog modulation mode; and depending on the type of television signal being received, tuner demodulator 220 may demodulate analog and/or digital signals.

The tuner demodulator 220 is also operative to respond to the user-selected television channel frequency and the television signals carried thereby, in accordance with the user selection, and as controlled by the controller 210.

In other exemplary embodiments, the tuner/demodulator 220 may be in an external device, such as an external set-top box. In this way, the set-top box outputs television audio/video data after modulation and demodulation, and inputs the television audio/video data into the display device 200 through the external device interface 250.

The communicator 230 is a component for communicating with an external device or an external server according to various communication protocol types. For example: the 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 apparatus 200 may establish a connection of a control signal and a data signal with an external control apparatus or a content providing apparatus 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 for providing data transmission between the N-chip controller 210 and the a-chip and other external devices. The external device interface may be connected with an external apparatus 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 apparatus.

The external device interface 250 may include: a High Definition Multimedia Interface (HDMI) terminal is also referred to as HDMI251, a Composite Video Blanking Sync (CVBS) terminal is also referred to as AV252, an analog or digital component terminal is also referred to as component 253, a Universal Serial Bus (USB) terminal 254, a Red Green Blue (RGB) terminal (not shown in the figure), and the like. The number and type of external device interfaces are not limited by this application.

The controller 210 controls the operation of the display device 200 and responds to the user's operation 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, the graphic processor 216, the CPU processor 212, and the first interface 218 are connected via a bus.

A ROM213 for storing instructions for various system boots. If the display device 200 is powered on upon receipt of the power-on signal, the CPU processor 212 executes a system boot instruction in the ROM and copies the operating system stored in the memory 290 to the RAM214 to start running the boot operating system. After the start of the operating system is completed, the CPU processor 212 copies the various application programs in the memory 290 to the RAM214, and then starts running and starting the various application programs.

A graphics processor 216 for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the operator and displaying the rendered result on the display 280.

A CPU processor 212 for executing 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 a plurality of processors. The plurality of processors may include a main processor and a plurality of or a sub-processor. A main processor for performing some operations of the display apparatus 200 in a pre-power-up mode and/or operations of displaying a screen in a normal mode. A plurality of or one sub-processor for performing an operation in a standby mode or the like.

The communication interfaces may include a first interface 218-1 through an 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 for selecting 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: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to an icon. The user command for selecting the UI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch pad, etc.) connected to the display apparatus 200 or a voice command corresponding to a voice spoken by the user.

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

The basic module is a bottom layer software module for signal communication between hardware in the display device 200 and sending processing and control signals to an upper layer module. The detection module is a management module used 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 may be used to play information such as multimedia image content and UI interface. The communication module is used for carrying out control and data communication with external equipment. And the browser module is used for executing data communication between the browsing servers. The service module is a module for providing various services and various application programs.

Meanwhile, the memory 290 is also used to store visual effect maps and the like for receiving external data and user data, images of respective items in various user interfaces, and a focus object.

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

In some embodiments, a user may enter a user command on 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 receives the user input command by recognizing the sound or gesture through the sensor.

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 synthesis according to a standard codec protocol of an input signal, so as to obtain video data directly displayed or played on the display 280.

Illustratively, the video processor 260-1 includes a demultiplexing module, a video decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, and the like.

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

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

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

The frame rate conversion module is configured to convert a frame rate of an input video, such as a 24Hz, 25Hz, 30Hz, or 60Hz video, into a 60Hz, 120Hz, or 240Hz frame rate, 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 realized in a common format by using a frame insertion 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 of a display, such as converting the format of the signal output by the frame rate conversion module to output an RGB data signal.

And a display 280 for receiving the image signal input from the video processor 260-1 and displaying the video content and image and the menu manipulation interface. The display 280 includes a display component for presenting a picture and a driving component for driving the display of an image. The video content may be displayed from the video in the broadcast signal received by the tuner/demodulator 220, or from the video content input from the communicator or the external device interface. The display 280 simultaneously displays a user manipulation interface UI generated in the display apparatus 200 and used to control the display apparatus 200.

And, a driving component for driving the display according to the type of the display 280. Alternatively, in case the display 280 is a projection display, it may also comprise a projection device and a projection screen.

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

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

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

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

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

Similar to the N-chip, as shown in fig. 4, the a-chip may include a controller 310, a communicator 330, a detector 340, and a memory 390. 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 an external device or an external server 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 communicator 330 of the a-chip and the communicator 230 of the N-chip also interact with each other. For example, the WiFi module 231 within the N-chip hardware system is used to connect to an external network, generate network communication with an external server, and the like. The WiFi module 331 in the a-chip hardware system is used to connect to the N-chip WiFi module 231 without making a direct connection with an external network or the like, and the a-chip is connected to an external network through the N-chip. Therefore, 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 an external environment or interacting with the outside. The detector 340 may include a light receiver 342, a sensor for collecting the intensity of ambient light, which may be used to adapt to display parameter changes, etc.; the system may further include an image collector 341, such as a camera, a video camera, etc., which may be configured to collect external environment scenes, collect attributes of the user or interact gestures with the user, adaptively change display parameters, and identify user gestures, so as to implement a function of interaction with the user.

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

And a video processor 360 for processing the related video data.

The controller 310 controls the operation of the display device 200 and responds to the user's operation by running various software control programs stored on the memory 390 (e.g., using installed third party applications, etc.), and interacting 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 the RAM314, the graphic processor 316, the CPU processor 312, and the communication interface 318 are connected via a bus.

A ROM313 for storing instructions for various system boots. CPU processor 312 executes system boot instructions in ROM and copies the operating system stored in memory 390 to RAM314 to begin running the boot operating system. After the start of the operating system is completed, the CPU processor 312 copies various application programs in the memory 390 to the RAM314, and then starts running and starting various application programs.

The CPU processor 312 is used for executing the operating system and application program instructions stored in the memory 390, communicating with the N chip, transmitting and interacting signals, data, instructions, etc., and executing various application programs, 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 plural. These interfaces may be network interfaces connected to external devices via a network, or may be network interfaces connected to the 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 for selecting 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 graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the operator and displaying the rendered result 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. In 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 graphics object when a user performs a command input by the user in application 1 at the interface of application 1. When a user makes a command input by the user in the interface of the application 2 and within the application 2, a graphic object is generated by the graphic processor 216 of the N chip.

Fig. 5 is a diagram schematically illustrating a functional configuration of a display device according to an exemplary embodiment.

As shown in fig. 5, the memory 390 of the a-chip and the memory 290 of the N-chip are used to store an operating system, an application program, 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 controller 310 of the a-chip and the controller 210 of the N-chip. The A-chip memory 390 and the N-chip memory 290 may include volatile and/or non-volatile memory.

The memory 290 is specifically configured to store an operating program for driving the controller 210 in the display device 200, and store various applications installed in the display device 200, various applications downloaded by a user from an external device, various graphical user interfaces related to the applications, various objects related to the graphical user interfaces, user data information, and internal data of various supported applications. 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, and other user data.

The memory 290 is specifically used for storing drivers and related data of the video processor 260-1 and the audio processor 260-2, the display 280, the communicator 230, the tuning demodulator 220, the input/output interface, and the like.

In some embodiments, memory 290 may store software and/or programs, software programs for representing 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 (e.g., the middleware, APIs, or applications), and the kernel may provide interfaces to allow the middleware and APIs, or applications, to access the controller to implement controlling or managing system resources.

The memory 290, for example, 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 performs functions such as: the system comprises a broadcast television signal receiving and demodulating function, a television channel selection control function, a volume selection control function, an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

The memory 390 includes a memory storing various software modules for driving and controlling the display apparatus 200. Such as: various software modules stored in memory 390, including: the system comprises 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, reference may be made to the memory 290 for relevant points, and thus, detailed description thereof is omitted here.

Illustratively, 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 performs functions such as: the system comprises an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

Differently, the external instruction recognition module 2907 of the N-chip and the external instruction recognition module 3907 of the a-chip can recognize different instructions.

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

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

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

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

In other embodiments, portions of the operating system kernel may include one or more device drivers, which may be a set of software code in the operating system that assists in operating or controlling the devices or hardware associated with the display device. The drivers may contain code that operates the video, audio, and/or other multimedia components. Examples include a display, a camera, Flash, WiFi, and audio drivers.

The accessibility module 2911-1 is configured to modify or access the application program to achieve accessibility and operability of the application program for displaying content.

A communication module 2911-2 for connection to other peripherals via associated communication interfaces and a communication network.

The user interface module 2911-3 is configured to provide an object for displaying a user interface, so that each application program can access the object, and user operability can be achieved.

Control applications 2911-4 for controlling process management, including runtime applications and the like.

The event transmission system 2914 may be implemented within the operating system 2911 or within the application 2912. In some embodiments, an aspect is implemented within the operating system 2911, while implemented in the application 2912, for listening for various user input events, and will implement one or more sets of predefined operations in response to various events referring to the recognition of various types of events or sub-events.

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

The event identification module 2914-2 is used to input various event definitions for various user input interfaces, identify various events or sub-events, and transmit them to the process for executing one or more sets of their corresponding handlers.

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 (e.g., the control apparatus 100). Such as: the method comprises the following steps of inputting various sub-events through voice, inputting a gesture sub-event through gesture recognition, inputting a remote control key command of a control device and the like. Illustratively, the one or more sub-events in the remote control include a variety of forms including, but not limited to, one or a combination of key presses up/down/left/right/, ok keys, key presses, and the like. And non-physical key operations such as move, hold, release, etc.

The interface layout management module 2913, directly or indirectly receiving the input events or sub-events from the event transmission system 2914, monitors the input events or sub-events, and updates the layout of the user interface, including but not limited to the position of each control or sub-control in the interface, and the size, position, and level of the container, which are related to the layout of the interface.

Since the functions of the operating system 3911 of the a chip are similar to those of the operating system 2911 of the N chip, reference may be made to the operating system 2911 for relevant points, and details are not repeated here.

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

The N-chip application layer 2912 may include, but is not limited to, one or more applications such as: a video-on-demand application, an application center, a game application, and the like. 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, and the like. It should be noted that what applications are respectively contained in the a chip and the N chip is determined according to an operating system and other designs, and the present invention does not need to make specific limitations and divisions on the applications contained in the a chip and the N chip.

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

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

The media center application program can provide various applications for playing multimedia contents. For example, a media center, which may be other than live television or video on demand, may provide services that a user may access to various images or audio through a media center application.

The application program center can provide and store various application programs. The application may be a game, an application, or some other application associated with a computer system or other device that may be run on a display device. The application center may obtain these applications from different sources, store them in local storage, and then be operable 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 the item is selected, the position of the selector being movable by user input to change the selection of a different item.

It should be noted that the multiple view display areas may present display screens of different hierarchies. For example, a first view display area may present video chat project content and a second view display area may present application layer project content (e.g., web page video, VOD presentations, application screens, etc.).

Optionally, the different view display areas are presented with different priorities, 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 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 influenced.

The display frames of the same hierarchy can also be presented, at this time, the selector can switch between the first view display area and the second view display area, and when the size and the position of the first view display area are changed, the size and the position of the second view display area can be changed along with the change.

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

The dual hardware display device may implement the above functions simultaneously. The dual hardware display device comprises a first chip and a second chip, wherein the second chip is respectively connected with the display screen and the loudspeaker, so that sound and images of the first chip can be output only through the second chip, in some embodiments, a plurality of application applications are loaded in the first chip, but the requirements of sound time delay of the first application and the second application are different, the first application needs to output sound quickly, such as singing-type Karaoke applications and chatting-type video communication applications, and the applications need to output sound quickly compared with audio and video applications (such as love art, Yokoku and the like) or education applications (such as curiosity, daily yoga, magic children and the like), especially when audio exists in the first application. Taking the 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 can watch the network video through the network 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 the codec in the first chip process is reduced, the second application may be subjected to time delay or sound effect processing without delaying the picture synchronization. The first application in the first chip then needs 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 through 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 carries out a series of image quality processing such as white balance, motion compensation and the like on the video data transmitted by the first chip. These image quality processing processes inevitably consume some time, which causes the time for the audio data to reach the speaker to be less than the time for the video data to reach the display, and the problem of "sound and picture asynchronism" occurs, so that the audio data needs to be delayed.

Further, the user's demand for sound played by the speaker is gradually increased, and the user puts new demands on sound, for example, the sound that the user wants to play can enhance the reality, atmosphere, or auditory effect of the played sound in some scenes. Usually, audio data is processed by sound effect, and the played sound meets the requirements of users. It should be noted that although the audio processing consumes a certain amount of time, the time consumed by the audio processing is less than or equal to the time consumed by the image quality processing. Therefore, when the user watches the network video through the display device, the display device is required to perform delay processing and/or sound effect processing on the audio data.

When the user sings through the display device K. The karaoke application is installed on a first chip. When the Karaoke application is started, the Karaoke application sends video data containing the lyrics and the time axis of the song to a second chip, and the second chip decodes the video data and sends the decoded video data to a display screen for display. The user begins singing while seeing the timeline that appears 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 audio mixing processing with the background sound, and the first chip transmits the audio data of the user to the second chip, so that certain delay exists between the audio data of the user and the lyrics displayed on the time axis inevitably 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 results in increased delay between the audio data of the user and the lyrics displayed on the time axis, and causes poor user experience. In some embodiments, the local sound may be directly played through the N chip, and in other embodiments, the sound sent from the opposite end must pass through the first application in the first chip and then be forwarded to the second chip for processing and outputting, but since the time axis is provided locally, the sound sent from the first chip may not be processed in order to solve the time delay between sound pictures, so as to speed up the output of the sound.

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

the display device comprises a loudspeaker, a second chip connected with the loudspeaker, and a first chip connected with the second chip:

s101, the first chip sends 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.

The time delay requirement of the first application on sound reproduction is smaller than that of the second application on sound reproduction;

wherein, in some embodiments, the start instruction is configured as a start broadcast issued by the first chip when detecting application start;

in the technical scheme shown in the embodiment of the application, when a third-party APP installed on a first chip is started, the first chip sends a corresponding start broadcast, and the start broadcast is used for informing a second chip that the corresponding APP is started.

The start broadcast comprises a first start broadcast and a second start broadcast, wherein the first start broadcast is a start broadcast corresponding to a low-delay application (first application). The second start broadcast is a start broadcast corresponding to a "non-low latency" application (second application). The low-delay application can be a series of applications with high real-time requirements on sound, such as Karaoke application, conference application and the like. The "non-low-delay" application can be a series of applications with high requirements on the sound quality of sound, such as video applications.

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

In some embodiments, the N-chip may determine whether the first start-up broadcast and the second start-up broadcast require a low latency first start-up instruction or a no latency second start-up instruction.

In some embodiments, the "low-delay" application refers to an application with a higher requirement on the timeliness of the sound in the operating system of the first chip, and the "non-low-delay" application refers to an application with a lower requirement on the timeliness of the sound and a higher requirement on the sound quality in the operating system of the first chip. The timeliness requirements of the "non-low-latency" application for the display device to output sound are less than the timeliness requirements of the "low-latency" application for the display device to output sound.

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 application 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, in response to receiving the first starting instruction, the second chip enables a sound processing module to be closed, so that the sound processing module does not process audio data received from the first chip;

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

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

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

In some embodiments, the frame layer of the first on-chip operating system issues a low-latency instruction (a first boot instruction) in response to the launch of the karaoke application and issues a non-low-latency instruction (a second boot instruction) in response to the non-karaoke application. That is, the first application is a karaoke application, and the second application is a non-karaoke application with high tolerance to sound delay (i.e., the sound delay requirement is higher than the delay requirement of the karaoke application). The karaoke application is an application that may be used by a user to sing a song in some embodiments.

In a possible 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 sound-delay the audio data received from the first chip

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

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

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

Optionally, after the low-latency application finishes the process, if the parameter corresponding to the audio delay unit is continuously zero, when the user watches the network television, a phenomenon that the picture is inconsistent with the sound may 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 time length of the voice information which is not received by the user in real time, and if the time length is greater than a preset time threshold, the low-delay application is proved to end the process. In this case, the second chip returns the parameter corresponding to the audio delay unit to the default value.

The specific process of closing the sound effect processing unit comprises the following steps: and the second chip receives the starting instruction and responds to the starting instruction as the first starting instruction, and the second chip closes the processing channel corresponding to the sound effect processing so as to close the 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, so that the sound data can quickly pass through the second chip, and delay is reduced.

In a feasible embodiment, the second chip receives the start instruction, and in response to the start instruction being the first start instruction, the second chip simultaneously turns off 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. Meanwhile, the two chips adjust the parameters corresponding to audiodelay to zero. Therefore, the sound data can be ensured to rapidly pass through the second chip, and the delay is reduced.

In some embodiments, the sound effect processing units include a basic sound effect processing unit and a special sound effect processing unit, the first basic sound effect processing unit is a unit in which all sounds need to be processed, and the special sound effect unit is a unit which 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 can comprise an audio gain subunit, and can also comprise a noise reduction subunit and other functional subunits, and the special sound effect processing unit can comprise a surround sound subunit, a dolby subunit, a bass enhancer unit and the like.

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

In some embodiments, the sound may be output through the sound effect processing unit without processing, and in some embodiments, the sound may be processed by the basic sound effect processing unit. S1022 the second chip, in response to receiving the second start instruction, enables a processing module to start, so that the sound processing module processes the audio data received from the first chip;

the second start instruction is configured as a second start broadcast issued by the first chip when detecting a second start broadcast issued when a second application is started.

For example, for an application scene for viewing video, audio data and video data of a third party application on a first chip are simultaneously transmitted to a second chip, but the video data needs to be decoded on the second chip, which results in that the time taken for the audio data to reach the speaker is less than the time taken for the audio data to reach the display device. Therefore, in the display device disclosed in the present application, after the second chip receives the start instruction, in response to that the start instruction is the second start instruction, the second chip adjusts the parameter tone corresponding to the audio delay unit to a preset value. The time taken for the audio data to reach the speaker is made equal to the time taken for the audio data to reach the display device, achieving the effect of "sound and picture synchronization". Meanwhile, the sound effect processing unit is started to process corresponding sound data, so that better experience is provided for users.

S1032 the second chip sends the audio data output by the sound processing module to the speaker.

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, and the audio data are rapidly output from the loudspeaker.

In some embodiments, after the second chip receives the start instruction, the second chip responds to the start instruction as the first start instruction, acquires the 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 fact that the starting instruction is the first starting instruction, the second chip obtains information such as the sampling rate of the self resampling module, the second chip sends the sampling rate and the channel information of the second chip to the first chip, the first chip communication module analyzes the received related information, the sampling rate and the channel information of the second chip are extracted, and the first chip adjusts the output frequency to be the sampling frequency of the second chip. By the means, the sampling frequency of the second chip is ensured to be the same as the output frequency of the first chip. In the resampling process of the first chip, the sampling rate channel information of the A chip and the second chip is kept consistent, so that the sound data is ensured to quickly pass through the second chip, 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 a related APP (karaoke application), so that the related APP adjusts an APP output frequency to the second chip sampling frequency, where the first chip output frequency is a frequency of the audio data sent to the second chip by the first chip, and the second chip sampling frequency is a sampling frequency of the audio data received from the first chip by the second chip.

The second chip receives behind the start instruction, the second chip respond to start instruction is first start instruction, and the second chip acquires information such as the sampling rate of self sampling module, sends information such as second chip sampling rate to first chip, and information such as the sampling rate of first chip analysis receipt extracts the sampling rate and the channel information of second chip, then sends the broadcast, carries information such as the sampling rate of second chip in the broadcast to inform relevant APP (for example K song APP). And the related APP receives the broadcast content, adjusts the output frequency of the APP according to the sampling rate of the second chip, and transmits the audio data. By the means, the sampling frequency of the second chip is ensured to be the same as the APP output frequency. Because relevant APP output frequency, the sampling rate of second chip keep unanimous to guarantee that sound data passes through the second chip fast, reduce the delay.

A second aspect of the embodiment of the present application shows a display device, specifically, referring to fig. 9, 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 following description of each interface is provided for a detailed explanation.

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 acquires image information, and the USB mainly acts on transmitting image data acquired by the camera to the second chip through the USB.

According to the technical scheme shown in the embodiment of the application, the first chip and the second chip can also be connected through a network interface, the network interface mainly has the advantages that the second chip and the first chip can be simultaneously connected with the internet, and keys of the remote controller are also 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 shown in the embodiment of the application, the first chip and the second chip can also be connected through a UART interface, and the UART interface is used for communication between the first chip and the second chip.

The first chip and the second chip in the technical scheme shown in the embodiment of the application can also be connected through an HDMI interface. The HDMI mainly sends the signal that first chip received to the second chip, the signal includes: 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 should be noted that, in the technical solution shown in the embodiment of the present application, the second interface is not open to a user.

The first chip in the embodiment of the application is used for sending a starting instruction to the second chip, wherein the starting instruction is configured to be a first starting broadcast sent by the first chip when the first chip detects that a first application is started;

a second chip connected to the speaker and the first chip, respectively, the second chip being configured to, in response to receiving the first start instruction, turn off the sound processing module so that the sound processing module does not process the audio data received from the first chip; in response to receiving the second start instruction, turning on a processing module 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 an 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 the turning off the sound processing module in response to receiving the first start instruction 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 received first starting instruction, and the audio delay unit adjusts the corresponding delay parameter to be zero, so that the first sound numerical control unit does not delay the audio data received by the second chip from the first chip.

Optionally, the sound processing module further comprises an audio processing unit, and the causing the sound processing module to be turned off so that the sound processing module does not process the audio data received from the first chip comprises: and closing the sound effect processing function of 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.

Optionally, the second chip is further configured to, in response to receiving the first start instruction, obtain a second chip sampling frequency, 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 from the first chip by the second chip.

Optionally, the second chip is further configured to, in response to receiving the first start instruction, obtain a second chip sampling frequency, and send the second chip sampling frequency to the first application, so that the first application adjusts the first application output frequency to the 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 on 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 of the present application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used are interchangeable under appropriate circumstances and can be implemented in sequences other than those illustrated or otherwise described herein with respect to the embodiments of the application, for example.

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

Claims

1. A sound reproduction method, characterized in that the method is applied to a display device comprising a speaker, a second chip connected to the speaker, and a first chip connected to the second chip:

2. The method of claim 1, wherein the sound processing module comprises an audio delay unit, and wherein the second chip, 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 chip comprises:

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

3. The method of claim 1 or 2, wherein the sound processing module further comprises an audio effect processing unit, and wherein the causing the sound processing module to be turned off so that the sound processing module does not process the audio data received from the first chip comprises:

the sound effect processing unit closes the sound effect processing function, so that the sound processing module does not perform sound effect processing on the audio data received from the first chip.

4. The method of claim 1, further comprising:

and the second chip responds to the received first starting instruction, acquires 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, wherein the first chip output frequency refers to the frequency of the audio data sent to the second chip by the first chip, and the second chip sampling frequency refers to the sampling frequency of the audio data received from the first chip by the second chip.

5. The method of claim 1, further comprising:

the second chip responds to the first starting instruction, obtains a second chip sampling frequency, and sends the second chip sampling frequency to the first application, so that the first application is related to adjust the first application output frequency to the second chip sampling frequency, 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 chip, and the second chip sampling frequency refers to the sampling frequency of the second chip on the audio data received from the first chip.

6. A display device, comprising: the loudspeaker comprises a first chip, a second chip connected with the first chip and a loudspeaker connected with the second chip;

the second chip is configured to, in response to receiving the first start-up instruction, cause the sound processing module to turn off so that the sound processing module does not process the audio data received from the first chip; in response to receiving the second starting instruction, enabling a processing module to be started so that the sound processing module processes audio data received from the first chip; and sending the audio data output by the sound processing module to the loudspeaker.

7. The display device of claim 6, wherein the sound processing module comprises an audio delay unit, and wherein in response to receiving the first start instruction, causing the sound processing module to turn off such that the sound processing module does not process the audio data received from the first chip comprises: and the second chip responds to the received first starting instruction, and the audio delay unit adjusts the corresponding delay parameter to be zero so that the audio delay unit does not delay the audio data received by the second chip from the first chip.

8. The display device according to claim 6 or 7, wherein the sound processing module further comprises an audio processing unit, and the causing the sound processing module to turn off so that the sound processing module does not process the audio data received from the first chip comprises: and closing the sound effect processing function of 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.

9. The display device according to claim 6, wherein the second chip is further configured to, in response to receiving the first start instruction, obtain a second chip sampling frequency, 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 refers to a frequency of the audio data sent by the first chip to the second 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.

10. The display device according to claim 6, wherein the second chip is further configured to, in response to receiving the first start instruction, obtain a second chip sampling frequency, and send the second chip sampling frequency to the first application, so that the relevant first application adjusts the first application output frequency to the second chip sampling frequency, where the first application output frequency refers to a frequency of the audio data output by the first application generating the audio data in 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.