CN111836083B - Display device and screen sounding method - Google Patents

Display device and screen sounding method Download PDF

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Publication number
CN111836083B
CN111836083B CN202010607314.3A CN202010607314A CN111836083B CN 111836083 B CN111836083 B CN 111836083B CN 202010607314 A CN202010607314 A CN 202010607314A CN 111836083 B CN111836083 B CN 111836083B
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China
Prior art keywords
audio
vibrator
area
areas
sound
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CN202010607314.3A
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Chinese (zh)
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CN111836083A (en
Inventor
于宁
王之奎
孔超
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Hisense Visual Technology Co Ltd
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Hisense Visual Technology Co Ltd
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Priority to CN202010607314.3A priority Critical patent/CN111836083B/en
Publication of CN111836083A publication Critical patent/CN111836083A/en
Priority to CN202180046237.1A priority patent/CN116158091A/en
Priority to PCT/CN2021/081680 priority patent/WO2022001204A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/4104Peripherals receiving signals from specially adapted client devices
    • H04N21/4122Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439Processing of audio elementary streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/485End-user interface for client configuration
    • H04N21/4852End-user interface for client configuration for modifying audio parameters, e.g. switching between mono and stereo
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/602Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for digital sound signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10General applications
    • H04R2499/15Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops

Abstract

The embodiment of the application provides a display device and a screen sounding method, wherein the display device comprises: the display comprises a screen sounding module, wherein the screen sounding module comprises a plurality of vibrators which are distributed in different display areas of the display; a controller connected to the display, the controller configured to: responding to a control signal for indicating playing of the video file, detecting a vibrator area corresponding to the audio frequency of the video file in real time to obtain an audio frequency vibrator area, wherein the vibrator area is divided according to a sound channel mode; judging whether a character vibrator area exists according to an image of the video file at the same time as the audio, wherein the character vibrator area is a vibrator area corresponding to the position of a character; judging whether alternative vibrator areas exist in all the audio vibrator areas, wherein the audio of the alternative vibrator areas is matched with a person; and if the alternative vibrator areas exist in all the audio vibrator areas, controlling the vibrators in the character areas corresponding to the character vibrator areas to play the audio corresponding to the alternative vibrator areas. The method and the device improve the presence effect of video playing.

Description

Display device and screen sounding method
Technical Field
The application relates to the technical field of display equipment, in particular to display equipment and a screen sounding method.
Background
In the present day that mobile communication terminals are rapidly developed, televisions still hold an important position in people's home life with their excellent viewing effects. With the advancement of technology, screen-sounding televisions began to stand out. The screen sounding television is characterized in that vibrators capable of sounding are arranged in a display of the television, and the sound effect of a traditional loudspeaker is achieved or close to that of the traditional loudspeaker by utilizing the vibrators. At present, screen vocal's TV sets up the oscillator of one side into the sound production of left channel usually, sets up the oscillator of opposite side into the sound production of right channel to reach the telepresence effect of binaural sound production, however, this kind of sound production mode is similar with traditional TV sound production mode, is difficult to bring better telepresence experience for people.
Disclosure of Invention
In order to solve the technical problem, the application provides a display device and a screen sounding method.
In a first aspect, the present application provides a display device comprising:
the display comprises a screen sounding module, wherein the screen sounding module comprises a plurality of vibrators which are distributed in different display areas of the display;
a controller connected with the display, the controller configured to:
responding to a control signal for indicating playing of a video file, detecting a vibration area corresponding to audio of the video file in real time to obtain an audio vibration area, wherein the vibration area is divided according to a sound channel mode;
judging whether a character vibrator area exists according to the image of the video file at the same time as the audio, wherein the character vibrator area is a vibrator area corresponding to the position of a character;
judging whether alternative vibrator areas exist in all the audio vibrator areas, wherein the audio of the alternative vibrator areas is matched with the character;
and if the alternative vibrator areas exist in all the audio vibrator areas, controlling the vibrators of the character vibrator area corresponding to the character area to play the audio corresponding to the alternative vibrator areas.
In some embodiments, the character area includes an area within a preset distance of the face, so that the effect of sounding of the vibrator near the face is achieved, and the presence experience is improved.
In some embodiments, the controller is further configured to: divide a plurality of oscillators to different oscillator district according to the sound channel mode, the sound channel mode includes the sound channel mode of video file, or the sound channel mode of screen vocal module, or the sound channel mode of user input to the adaptability of dividing the oscillator district has been improved, the on-the-spot experience scene of screen vocal has been enriched.
In a second aspect, an embodiment of the present application provides a method for generating a screen sound, where the method includes:
responding to a control signal for indicating playing of a video file, detecting a vibration area corresponding to audio of the video file in real time to obtain an audio vibration area, wherein the vibration area is divided according to a sound channel mode;
judging whether a character vibrator area exists according to the image of the video file at the same time as the audio, wherein the character vibrator area is a vibrator area corresponding to the position of a character;
judging whether alternative vibrator areas exist in all the audio vibrator areas, wherein the audio of the alternative vibrator areas is matched with the character;
and if the alternative vibrator areas exist in all the audio vibrator areas, controlling the vibrators of the character vibrator area corresponding to the character area to play the audio corresponding to the alternative vibrator areas.
In some embodiments, if the alternative vibrator area does not exist in all the audio vibrator areas, the vibrators of the audio vibrator areas are controlled to play corresponding audio, so that the display equipment keeps a traditional sound production mode, and smooth playing of video files is guaranteed.
In some embodiments, the vibrator in the human figure region plays the audio corresponding to the candidate vibrator region according to the second sound gain coefficient, so as to avoid the situation that the sound is too small.
The display device and the screen sounding method provided by the application have the beneficial effects that:
according to the embodiment of the application, the vibration sub-area is divided according to the sound channel mode, the sound channel of the audio is acquired from the video file in real time, the audio vibration sub-area is obtained, people are detected in real time on the image of the video file, people synchronous with the audio are obtained, if the audio is matched with the people, the vibrator in the people area is controlled to play the audio, and the on-site effect and the user experience of screen sounding are improved.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic diagram illustrating an operational scenario between a display device and a control apparatus according to some embodiments;
a block diagram of a hardware configuration of a display device 200 according to some embodiments is illustrated in fig. 2;
fig. 3 illustrates a block diagram of a hardware configuration of the control apparatus 100 according to some embodiments;
a schematic diagram of a software configuration in a display device 200 according to some embodiments is illustrated in fig. 4;
FIG. 5 illustrates an icon control interface display diagram of an application in the display device 200, according to some embodiments;
FIG. 6 illustrates a schematic diagram of the distribution of elements of a display 275 according to some embodiments;
a 2.0 channel mode diagram according to some embodiments is illustrated in fig. 7 a;
a 2.1 channel mode diagram according to some embodiments is illustrated in fig. 7 b;
a 5.1 channel mode diagram according to some embodiments is illustrated in fig. 7 c;
a schematic diagram of a video image according to some embodiments is illustrated in fig. 8;
a flow diagram of a screen-sound method according to some embodiments is illustrated in fig. 9;
FIG. 10a is a schematic diagram of the distribution of transducer regions in the 2.0 channel mode in some embodiments;
FIG. 10b is a schematic diagram of the arrangement of the dipole areas in the 2.1 channel mode and the 5.1 channel mode in some embodiments;
figure 11 is a schematic representation of a distribution of characters in some embodiments.
Detailed Description
To make the objects, embodiments and advantages of the present application clearer, the following description of exemplary embodiments of the present application will clearly and completely describe the exemplary embodiments of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application, and it is to be understood that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments described herein without inventive step, are intended to be within the scope of the claims appended hereto. In addition, while the disclosure herein has been presented in terms of one or more exemplary examples, it should be appreciated that aspects of the disclosure may be implemented solely as a complete embodiment.
It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.
The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and are not necessarily intended to limit the order or sequence of any particular one, Unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
Furthermore, the terms "comprises" and "comprising," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.
The term "module," as used herein, refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.
The term "remote control" as used in this application refers to a component of an electronic device (such as the display device disclosed in this application) that is typically wirelessly controllable over a relatively short range of distances. Typically using infrared and/or Radio Frequency (RF) signals and/or bluetooth to connect with the electronic device, and may also include WiFi, wireless USB, bluetooth, motion sensor, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in the common remote control device with the user interface in the touch screen.
The term "gesture" as used in this application refers to a user's behavior through a change in hand shape or an action such as hand motion to convey a desired idea, action, purpose, or result.
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 device 200 through the mobile terminal 300 and the control apparatus 100.
In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, etc., and the display device 200 is controlled by wireless or other wired methods. The user may input a user command through a key on a remote controller, voice input, control panel input, etc. to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement the function of controlling the display device 200.
In some embodiments, mobile terminals, tablets, computers, laptops, and other smart devices may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device. The application, through configuration, may provide the user with various controls in an intuitive User Interface (UI) on a screen associated with the smart device.
In some embodiments, the mobile terminal 300 may install a software application with the display device 200 to implement connection communication through a network communication protocol for the purpose of one-to-one control operation and data communication. Such as: the mobile terminal 300 and the display device 200 can establish a control instruction protocol, synchronize a remote control keyboard to the mobile terminal 300, and control the display device 200 by controlling a user interface on the mobile terminal 300. The audio and video content displayed on the mobile terminal 300 can also be transmitted to the display device 200, so as to realize the synchronous display function.
As also shown in fig. 1, the display apparatus 200 also performs data communication with the server 400 through various communication means. The display device 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. Illustratively, the display device 200 receives software program updates, or accesses a remotely stored digital media library, by sending and receiving information, as well as Electronic Program Guide (EPG) interactions. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers. Other web service contents such as video on demand and advertisement services are provided through the server 400.
The display device 200 may be a liquid crystal display, an OLED display, a projection display device. The particular display device type, size, resolution, etc. are not limiting, and those skilled in the art will appreciate that the display device 200 may be modified in performance and configuration as desired.
The display apparatus 200 may additionally provide an intelligent network tv function of a computer support function including, but not limited to, a network tv, an intelligent tv, an Internet Protocol Tv (IPTV), and the like, in addition to the broadcast receiving tv function.
A hardware configuration block diagram of a display device 200 according to an exemplary embodiment is exemplarily shown in fig. 2.
In some embodiments, at least one of the controller 250, the tuner demodulator 210, the communicator 220, the detector 230, the input/output interface 255, the display 275, the audio output interface 285, the memory 260, the power supply 290, the user interface 265, and the external device interface 240 is included in the display apparatus 200.
In some embodiments, a display 275 receives image signals originating from the first processor output and displays video content and images and components of the menu manipulation interface.
In some embodiments, the display 275, includes a display screen assembly for presenting a picture, and a driving assembly that drives the display of an image.
In some embodiments, the video content is displayed from broadcast television content, or alternatively, from various broadcast signals that may be received via wired or wireless communication protocols. Alternatively, various image contents received from the network communication protocol and sent from the network server side can be displayed.
In some embodiments, the display 275 is used to present a user-manipulated UI interface generated in the display device 200 and used to control the display device 200.
In some embodiments, a drive assembly for driving the display is also included, depending on the type of display 275.
In some embodiments, display 275 is a projection display and may also include a projection device and a projection screen.
In some embodiments, communicator 220 is a component for communicating with external devices or external servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi chip, a bluetooth communication protocol chip, a wired ethernet communication protocol chip, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver.
In some embodiments, the display apparatus 200 may establish control signal and data signal transmission and reception with the external control device 100 or the content providing apparatus through the communicator 220.
In some embodiments, the user interface 265 may be configured to receive infrared control signals from a control device 100 (e.g., an infrared remote control, etc.).
In some embodiments, the detector 230 is a signal used by the display device 200 to collect an external environment or interact with the outside.
In some embodiments, the detector 230 includes a light receiver, a sensor for collecting the intensity of ambient light, and parameters changes can be adaptively displayed by collecting the ambient light, and the like.
In some embodiments, the detector 230 may further include an image collector, such as a camera, etc., which may be configured to collect external environment scenes, collect attributes of the user or gestures interacted with the user, adaptively change display parameters, and recognize user gestures, so as to implement a function of interaction with the user.
In some embodiments, the detector 230 may also include a temperature sensor or the like, such as by sensing ambient temperature.
In some embodiments, the display apparatus 200 may adaptively adjust a display color temperature of an image. For example, the display apparatus 200 may be adjusted to display a cool tone when the temperature is in a high environment, or the display apparatus 200 may be adjusted to display a warm tone when the temperature is in a low environment.
In some embodiments, the detector 230 may also be a sound collector or the like, such as a microphone, which may be used to receive the user's voice. Illustratively, a voice signal including a control instruction for the user to control the display device 200, or to collect an ambient sound for recognizing an ambient scene type, so that the display device 200 can adaptively adapt to an ambient noise.
In some embodiments, as shown in fig. 2, the input/output interface 255 is configured to allow data transfer between the controller 250 and external other devices or other controllers 250. Such as receiving video signal data and audio signal data of an external device, or command instruction data, etc.
In some embodiments, the external device interface 240 may include, but is not limited to, the following: the interface can be any one or more of a high-definition multimedia interface (HDMI), an analog or data high-definition component input interface, a composite video input interface, a USB input interface, an RGB port and the like. The plurality of interfaces may form a composite input/output interface.
In some embodiments, as shown in fig. 2, the tuning demodulator 210 is configured to receive a broadcast television signal through a wired or wireless receiving manner, perform modulation and demodulation processing such as amplification, mixing, resonance, and the like, and demodulate an audio and video signal from a plurality of wireless or wired broadcast television signals, where the audio and video signal may include a television audio and video signal carried in a television channel frequency selected by a user and an EPG data signal.
In some embodiments, the frequency points demodulated by the tuner demodulator 210 are controlled by the controller 250, and the controller 250 can send out control signals according to user selection, so that the modem responds to the television signal frequency selected by the user and modulates and demodulates the television signal carried by the frequency.
In some embodiments, the broadcast television signal may be classified into a terrestrial broadcast signal, a cable broadcast signal, a satellite broadcast signal, an internet broadcast signal, or the like according to the broadcasting system of the television signal. Or may be classified into a digital modulation signal, an analog modulation signal, and the like according to a modulation type. Or the signals are classified into digital signals, analog signals, and the like according to the type of the signals.
In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box. Therefore, the set top box outputs the television audio and video signals modulated and demodulated by the received broadcast television signals to the main body equipment, and the main body equipment receives the audio and video signals through the first input/output interface.
In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 may control the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 275, the controller 250 may perform an operation related to the object selected by the user command.
In some embodiments, the object may be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, such as: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to the icon. The user command for selecting the UI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch pad, etc.) connected to the display apparatus 200 or a voice command corresponding to a voice spoken by the user.
As shown in fig. 2, the controller 250 includes at least one of a Random Access Memory 251 (RAM), a Read-Only Memory 252 (ROM), a video processor 270, an audio processor 280, other processors 253 (e.g., a Graphics Processing Unit (GPU), a Central Processing Unit 254 (CPU), a Communication Interface (Communication Interface), and a Communication Bus 256(Bus), which connects the respective components.
In some embodiments, RAM 251 is used to store temporary data for the operating system or other programs that are running
In some embodiments, ROM 252 is used to store instructions for various system boots.
In some embodiments, the ROM 252 is used to store a Basic Input Output System (BIOS). The system is used for completing power-on self-test of the system, initialization of each functional module in the system, a driver of basic input/output of the system and booting an operating system.
In some embodiments, when the power-on signal is received, the display device 200 starts to power up, the CPU executes the system boot instruction in the ROM 252, and copies the temporary data of the operating system stored in the memory to the RAM 251 so as to start or run the operating system. After the start of the operating system is completed, the CPU copies the temporary data of the various application programs in the memory to the RAM 251, and then, the various application programs are started or run.
In some embodiments, CPU processor 254 is used to execute operating system and application program instructions stored in memory. And executing various application programs, data and contents according to various interactive instructions received from the outside so as to finally display and play various audio and video contents.
In some example embodiments, the CPU processor 254 may comprise a plurality of processors. The plurality of processors may include a main processor and one or more sub-processors. A main processor for performing some operations of the display apparatus 200 in a pre-power-up mode and/or operations of displaying a screen in a normal mode. One or more sub-processors for one operation in a standby mode or the like.
In some embodiments, the graphics processor 253 is used to generate various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And the system comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on a display.
In some embodiments, the video processor 270 is configured to receive an external video signal, and perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, image synthesis, and the like according to a standard codec protocol of the input signal, so as to obtain a signal that can be displayed or played on the direct display device 200.
In some embodiments, video processor 270 includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, and the like.
The demultiplexing module is used for demultiplexing the input audio and video data stream, and if the input MPEG-2 is input, the demultiplexing module demultiplexes the input audio and video data stream into a video signal and an audio signal.
And the video decoding module is used for processing the demultiplexed video signal, including decoding, scaling and the like.
And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display.
The frame rate conversion module is configured to convert an input video frame rate, such as a 60Hz frame rate into a 120Hz frame rate or a 240Hz frame rate, and the normal format is implemented in, for example, an interpolation frame mode.
The display format module is used for converting the received video output signal after the frame rate conversion, and changing the signal to conform to the signal of the display format, such as outputting an RGB data signal.
In some embodiments, the graphics processor 253 and the video processor may be integrated or separately configured, and when the graphics processor and the video processor are integrated, the graphics processor and the video processor may perform processing of graphics signals output to the display, and when the graphics processor and the video processor are separately configured, the graphics processor and the video processor may perform different functions, respectively, for example, a GPU + frc (frame Rate conversion) architecture.
In some embodiments, the audio processor 280 is configured to receive an external audio signal, decompress and decode the received audio signal according to a standard codec protocol of the input signal, and perform noise reduction, digital-to-analog conversion, and amplification processes to obtain an audio signal that can be played in a speaker.
In some embodiments, video processor 270 may comprise one or more chips. The audio processor may also include one or more chips.
In some embodiments, the video processor 270 and the audio processor 280 may be separate chips or may be integrated together with the controller in one or more chips.
In some embodiments, the audio output, under the control of controller 250, receives sound signals output by audio processor 280, such as: the speaker 286, and an external sound output terminal of the sound generating device that can output to the external device, in addition to the speaker carried by the display device 200 itself, such as: external sound interface or earphone interface, etc., and may also include a near field communication module in the communication interface, for example: and the Bluetooth module is used for outputting sound of the Bluetooth loudspeaker.
The power supply 290 supplies power to the display device 200 from the power input from the external power source under the control of the controller 250. The power supply 290 may include a built-in power supply circuit installed inside the display apparatus 200, or may be a power supply interface installed outside the display apparatus 200 to provide an external power supply in the display apparatus 200.
A user interface 265 for receiving an input signal of a user and then transmitting the received user input signal to the controller 250. The user input signal may be a remote controller signal received through an infrared receiver, and various user control signals may be received through the network communication module.
In some embodiments, the user inputs a user command through the control apparatus 100 or the mobile terminal 300, the user input interface responds to the user input through the controller 250 according to the user input, and the display device 200 responds to the user input through the controller 250.
In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on the display 275, and the user input interface receives the user input commands through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.
In some embodiments, a "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form that is acceptable to the user. A commonly used presentation form of the User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.
The memory 260 includes a memory storing various software modules for driving the display device 200. Such as: various software modules stored in the first memory, including: at least one of a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules.
The base module is a bottom layer software module for signal communication between various hardware in the display device 200 and for sending processing and control signals to the upper layer module. The detection module is used for collecting various information from various sensors or user input interfaces, and the management module is used for performing digital-to-analog conversion and analysis management.
For example, the voice recognition module comprises a voice analysis module and a voice instruction database module. The display control module is used for controlling the display to display the image content, and can be used for playing the multimedia image content, UI interface and other information. And the communication module is used for carrying out control and data communication with external equipment. And the browser module is used for executing a module for data communication between the browsing servers. And the service module is used for providing various services and modules including various application programs. Meanwhile, the memory 260 may store a visual effect map for receiving external data and user data, images of various items in various user interfaces, and a focus object, etc.
Fig. 3 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 3, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface, a memory, and a power supply.
The control apparatus 100 is configured to control the display device 200 and may receive an input operation instruction of a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an interaction intermediary between the user and the display device 200. Such as: the user 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, a mobile terminal 300 or other intelligent electronic device may function similar to the control apparatus 100 after an application for manipulating the display device 200 is installed. Such as: the user may implement the function of controlling the physical keys of the apparatus 100 by installing an application, various function keys or virtual buttons of a graphical user interface available on the mobile terminal 300 or other intelligent electronic device.
The controller 110 includes a processor 112 and RAM 113 and ROM 114, a communication interface 130, and a communication bus. The controller is used for controlling the operation of the control device 100, as well as the communication cooperation among the internal components and the external and internal data processing functions.
The communication interface 130 enables communication of control signals and data signals with the display apparatus 200 under the control of the controller 110. Such as: the received user input signal is transmitted to the display apparatus 200. The communication interface 130 may include at least one of a WiFi chip 131, a bluetooth module 132, an NFC module 133, and other near field communication modules.
A user input/output interface 140, wherein the input interface includes at least one of a microphone 141, a touch pad 142, a sensor 143, keys 144, and other input interfaces. Such as: the user can realize a user instruction input function through actions such as voice, touch, gesture, pressing, and the like, and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the instruction signal to the display device 200.
The output interface includes an interface that transmits the received user instruction to the display apparatus 200. In some embodiments, the interface may be an infrared interface or a radio frequency interface. Such as: when the infrared signal interface is used, the user input instruction needs to be converted into an infrared control signal according to an infrared control protocol, and the infrared control signal is sent to the display device 200 through the infrared sending module. The following steps are repeated: when the rf signal interface is used, a user input command needs to be converted into a digital signal, and then modulated according to an rf control signal modulation protocol, and then transmitted to the display device 200 through the rf transmitting terminal.
In some embodiments, the control device 100 includes at least one of a communication interface 130 and an input-output interface 140. The control device 100 is configured with a communication interface 130, such as: the WiFi, bluetooth, NFC, etc. modules may transmit the user input command to the display device 200 through the WiFi protocol, or the bluetooth protocol, or the NFC protocol code.
A memory 190 for storing various operation programs, data and applications for driving and controlling the control apparatus 200 under the control of the controller. The memory 190 may store various control signal commands input by a user.
And a power supply 180 for providing operation power support for each element of the control device 100 under the control of the controller. A battery and associated control circuitry.
In some embodiments, the system may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.
Referring to fig. 4, in some embodiments, the system is divided into four layers, which are, from top to bottom, an Application (Applications) layer (abbreviated as "Application layer"), an Application Framework (Application Framework) layer (abbreviated as "Framework layer"), an Android runtime (Android runtime) and system library layer (abbreviated as "system runtime library layer"), and a kernel layer.
In some embodiments, at least one application program runs in the application program layer, and the application programs can be Window (Window) programs carried by an operating system, system setting programs, clock programs, camera applications and the like; or may be an application developed by a third party developer such as a hi program, a karaoke program, a magic mirror program, or the like. In specific implementation, the application packages in the application layer are not limited to the above examples, and may actually include other application packages, which is not limited in this embodiment of the present application.
The framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions. The application framework layer acts as a processing center that decides to let the applications in the application layer act. The application program can access the resource in the system and obtain the service of the system in execution through the API interface
As shown in fig. 4, in the embodiment of the present application, the application framework layer includes a manager (Managers), a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an Activity Manager (Activity Manager) is used for interacting with all activities running in the system; the Location Manager (Location Manager) is used for providing the system service or application with the access of the system Location service; a Package Manager (Package Manager) for retrieving various information related to an application Package currently installed on the device; a Notification Manager (Notification Manager) for controlling display and clearing of Notification messages; a Window Manager (Window Manager) is used to manage the icons, windows, toolbars, wallpapers, and desktop components on a user interface.
In some embodiments, the activity manager is to: managing the life cycle of each application program and the general navigation backspacing function, such as controlling the exit of the application program (including switching the user interface currently displayed in the display window to the system desktop), opening, backing (including switching the user interface currently displayed in the display window to the previous user interface of the user interface currently displayed), and the like.
In some embodiments, the window manager is configured to manage all window processes, such as obtaining a display size, determining whether a status bar is available, locking a screen, intercepting a screen, controlling a display change (e.g., zooming out, dithering, distorting, etc.) and the like.
In some embodiments, the system runtime layer provides support for the upper layer, i.e., the framework layer, and when the framework layer is used, the android operating system runs the C/C + + library included in the system runtime layer to implement the functions to be implemented by the framework layer.
In some embodiments, the kernel layer is a layer between hardware and software. As shown in fig. 4, the core layer includes at least one of the following drivers: audio drive, display drive, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (such as fingerprint sensor, temperature sensor, touch sensor, pressure sensor, etc.), and so on.
In some embodiments, the kernel layer further comprises a power driver module for power management.
In some embodiments, software programs and/or modules corresponding to the software architecture of fig. 4 are stored in the first memory or the second memory shown in fig. 2 or 3.
In some embodiments, taking the magic mirror application (photographing application) as an example, when the remote control receiving device receives a remote control input operation, a corresponding hardware interrupt is sent to the kernel layer. The kernel layer processes the input operation into an original input event (including information such as the value of the input operation, the timestamp of the input operation, etc.). The raw input events are stored at the kernel layer. The application program framework layer obtains an original input event from the kernel layer, identifies a control corresponding to the input event according to the current position of the focus and uses the input operation as a confirmation operation, the control corresponding to the confirmation operation is a control of a magic mirror application icon, the magic mirror application calls an interface of the application framework layer to start the magic mirror application, and then the kernel layer is called to start a camera driver, so that a static image or a video is captured through the camera.
In some embodiments, for a display device with a touch function, taking a split screen operation as an example, the display device receives an input operation (such as a split screen operation) that a user acts on a display screen, and the kernel layer may generate a corresponding input event according to the input operation and report the event to the application framework layer. The window mode (such as multi-window mode) corresponding to the input operation, the position and size of the window and the like are set by an activity manager of the application framework layer. And the window management of the application program framework layer draws a window according to the setting of the activity manager, then sends the drawn window data to the display driver of the kernel layer, and the display driver displays the corresponding application interface in different display areas of the display screen.
In some embodiments, as shown in fig. 5, the application layer containing at least one application may display a corresponding icon control in the display, such as: the system comprises a live television application icon control, a video on demand application icon control, a media center application icon control, an application center icon control, a game application icon control and the like.
In some embodiments, the live television application may provide live television from different sources. For example, a live television application may provide television signals using input from cable television, radio broadcasts, satellite services, or other types of live television services. And, the live television application may display video of the live television signal on the display device 200.
In some embodiments, a video-on-demand application may provide video from different storage sources. Unlike live television applications, video on demand provides video displays from some storage source. For example, the video on demand may come from a server side of the cloud storage, from a local hard disk storage containing stored video programs.
In some embodiments, the media center application may provide various applications for multimedia content playback. For example, a media center, which may be other than live television or video on demand, may provide services that a user may access to various images or audio through a media center application.
In some embodiments, an application center may provide storage for various applications. The application may be a game, an application, or some other application associated with a computer system or other device that may be run on the smart television. The application center may obtain these applications from different sources, store them in local storage, and then be operable on the display device 200.
The hardware or software architecture in some embodiments may be based on the description in the above embodiments, and in some embodiments may be based on other hardware or software architectures that are similar to the above embodiments, and it is sufficient to implement the technical solution of the present application.
The display device 200 of the present application is further described below with reference to fig. 6-11.
A schematic diagram of the distribution of elements of a display 275 according to some embodiments is illustrated in fig. 6. To implement the screen-sounding function, the display 275 may be provided with a screen-sounding module, as shown in fig. 6, the screen-sounding module may include a plurality of vibrators, 18 vibrators from 0 to 17 are shown in fig. 6, and the 18 vibrators are uniformly distributed in the display area of the display 275. Fig. 6 is merely exemplary, and in some embodiments, the number of elements and the distribution of elements of display 275 may differ from fig. 6.
To enable the stereoscopic effect of the screen sound to reach or approach the playing effect of the audio output interface 285 in fig. 2, the display device 200 can set the screen sound module to multiple sound channel modes: 2.0 channel mode, 2.1 channel mode, and 5.1 channel mode, although screen sound modules may have other channel modes as technology advances.
Fig. 7a is a schematic diagram illustrating a 2.0 channel mode according to some embodiments, and as shown in fig. 7a, the left-side transducer forms a left channel and the right-side transducer forms a right channel with a central axis of the display 275 as a boundary, so that when the left-side transducer and the right-side transducer emit different sounds at the same time, a stereo effect can be achieved.
Fig. 7b schematically illustrates a 2.1 channel mode according to some embodiments, and as shown in fig. 7b, with the central axis of the display 275 as a boundary, a portion of the transducers on the left side constitutes a left channel, a portion of the transducers on the right side constitutes a right channel, a portion of the transducers in the middle of the display 275 constitutes a bass channel, and when at least two of the left channel, the bass channel, and the right channel emit different sounds at the same time, a stereo effect can be achieved.
Fig. 7c schematically illustrates a 5.1 channel mode according to some embodiments, where as shown in fig. 7c, a central axis of the display 275 and a horizontal line perpendicular to the central axis are used as boundary lines, an upper left portion of the transducers constitutes a front left channel, a lower left portion of the transducers constitutes a rear left channel, a middle portion of the display 275 constitutes a bass channel, an upper right portion of the transducers constitutes a front right channel, and a lower right portion of the transducers constitutes a rear right channel, and when at least two of the front left channel, the rear left channel, the bass channel, the front right channel, and the rear right channel emit different sounds at the same time, a stereo effect can be achieved.
In some embodiments, an audio may be preset with a channel mode, so that the audio can be played in the preset channel mode, wherein the preset channel mode may include one or more channel modes.
In some embodiments, the display apparatus 200 may set a channel mode so that a user may play audio in a default channel mode or a selected channel mode.
However, in the related art, for a video file, the vocal tract of the human voice in the audio is not usually associated with the position of the human in the video image, so that the audio presence effect of the video file is not good.
Fig. 8 is a schematic diagram of a video image according to some embodiments, and as shown in fig. 8, it can be seen that the video image includes three characters, namely two men and one woman, and the video image also corresponds to the "xie taifeng". Taking the sound channel mode as 2.0 as an example, a woman is located in the sound production range of the right sound channel, two men are located in the sound production range of the left sound channel, and meanwhile, the video image also corresponds to the speech word "xitenfeng". In the related art, the speech may be uttered by any one channel or a plurality of channels. If the speech is sounded by ladies in the video image, the speech is also sounded by a right sound channel in the audio, or the right sound channel and a bass sound channel sound together, the user experience is that the ladies on the right side sound, and the telepresence effect is better; if the speech channel audio is a non-right channel sound, such as a left channel sound, or a left channel and a bass channel sound together, or a full channel sound together, the user experience of the sound production of women cannot be brought, and the telepresence effect is not good.
To solve the above problem, an embodiment of the present application provides a screen sound generating method, which may be used for the display device 200, and referring to fig. 9, the screen sound generating method may include the following steps:
step S100: the plurality of oscillators are divided into different oscillator areas according to the channel mode.
Fig. 10a is a schematic diagram of the distribution of the oscillator regions in the 2.0 channel mode in some embodiments, as shown in fig. 10a, the oscillator region in the 2.0 channel mode includes a left channel and a right channel, the controller of the display device may divide the oscillator corresponding to the left channel into a first oscillator region, and divide the oscillator corresponding to the right channel into a second oscillator region, where the first oscillator region includes oscillator 0, oscillator 1, oscillator 2, oscillator 3, oscillator 4, oscillator 5, oscillator 6, oscillator 7, and oscillator 8, and the second oscillator region includes oscillator 9, oscillator 10, oscillator 11, oscillator 12, oscillator 13, oscillator 14, oscillator 15, oscillator 16, and oscillator 17.
Fig. 10b is a schematic diagram of the arrangement of the transducers in the 2.1 channel mode and the 5.1 channel mode in some embodiments, as shown in fig. 10b, according to the 2.1 channel mode including the left channel, the bass channel and the right channel, the controller of the display device may divide the transducer corresponding to the left channel into a third transducer area, divide the transducer corresponding to the right channel into a fourth transducer area, and divide the transducer corresponding to the bass channel into a fifth transducer area. According to the 5.1 sound channel mode, the sound channel comprises a left front sound channel, a left rear sound channel, a bass sound channel, a right front sound channel and a right rear sound channel, vibrators corresponding to the left front sound channel and the left rear sound channel are divided into a third vibration subarea, vibrators corresponding to the right front sound channel and the right rear sound channel are divided into a fourth vibration subarea, and vibrators corresponding to the bass sound channel are divided into a fifth vibration subarea. After division, the third oscillator area comprises an oscillator 0, an oscillator 1, an oscillator 2, an oscillator 3, an oscillator 4, an oscillator 6, an oscillator 7 and an oscillator 8, the fourth oscillator area comprises an oscillator 9, an oscillator 10, an oscillator 11, an oscillator 13, an oscillator 14, an oscillator 15, an oscillator 16 and an oscillator 17, and the fifth oscillator area comprises an oscillator 5 and an oscillator 12.
In some embodiments, the display device may be provided with a default channel mode, the controller of the display device may divide the vibrators into different vibrator areas in advance according to the default channel mode, and the user may change the default channel mode.
In some embodiments, the video file may be set with a default channel mode, and after a user inputs a control signal indicating to play the video file to the display device, the display device may obtain the default channel mode of the video file in response to the control signal indicating to play the video file, and divide the vibration region according to the default channel mode of the video file, where the control signal indicating to play the video file may be a signal for opening a video file, such as a signal for a user to click a certain movie.
In some embodiments, the video file may be played in a plurality of channel modes, when a user inputs a control signal to the display device to instruct the video file to be played, the display device may divide the vibration area according to a default channel mode of the display device or a default channel mode of the video file, and when a user inputs a control signal to instruct the channel mode to be changed, for example, changing the channel mode from 2.0 to 5.1, the display device may re-divide the vibration area according to a new channel mode.
The method has the advantages that the number of video files is large, the supported sound channel modes are different, the brands and the models of the display devices are different, and the supported sound channel modes are different, the vibrator area division mode under different sound channel modes is provided, so that the vibrator area division can be carried out under various sound channel modes of the video files and the display devices, the adaptability of the vibrator area division is improved, the on-site experience scene of screen sounding is enriched,
step S110: and responding to a control signal for indicating the playing of the video file, and detecting a vibration area corresponding to the audio frequency of the video file in real time to obtain an audio frequency vibration area.
After a user inputs a control signal for instructing playing of the video file to the display device, the controller of the display device can acquire the audio frequency of the video file in real time according to the control signal, detect the sound channel of the audio frequency, and mark the vibrator area corresponding to the sound channel of the audio frequency as an audio vibrator area.
In some embodiments, the channel mode is 2.1, the audio of the video file at the time t1 is obtained, and if the audio is detected to be a right channel sounding, the vibrator area corresponding to the right channel, that is, the fourth vibrator area, is marked as an audio vibrator area.
Step S120: and judging whether a character vibrator area exists according to the image at the same time as the audio in the video file, wherein the character vibrator area is a vibrator area corresponding to the position of the character.
And responding to a control signal which is input by a user and indicates to play the video file, wherein the controller of the display equipment can acquire an image at the same time as the audio in real time according to the video file, perform face recognition on the image, compare the position of the figure with the position of the vibrator area if the figure is recognized, and mark the vibrator area corresponding to the figure as a figure vibrator area. Furthermore, the gender of the person can be identified through face recognition. The face recognition algorithm can identify the gender of the person.
In some embodiments, the vocal tract mode is 2.1, an image of the video file at a time t1 is obtained, face recognition is performed on the image to obtain a person a with a female gender, and the third vibrator area is marked as a character vibrator area according to that the vibrator area corresponding to the position of the person a is the third vibrator area.
Step S130: and judging whether alternative vibrator areas exist in all the audio vibrator areas, wherein the audio frequency of the alternative vibrator areas is matched with the person.
The audio of the audio vibrator area may be human voice or background sound, such as music sound, fighting sound, etc., if the audio is the background sound, it is not necessary to judge whether the audio of the audio vibrator area matches with the character, and if the audio is the human voice, it is necessary to judge whether the audio of the audio vibrator area matches with the character.
In some embodiments, the number of the audio vibrator areas is one, and voiceprint recognition can be performed on the audio of the audio vibrator area, whether the audio is human voice is judged, if the audio is human voice, whether timbre information of the audio is matched with a person is further judged, wherein the timbre information can include gender, that is, whether the gender of the human voice is consistent with the gender of the person is judged, and if the gender of the human voice is consistent with the gender of the person, the audio vibrator area is marked as a candidate vibrator area. The voiceprint recognition algorithm can recognize whether the audio is the voice and can recognize the gender of the voice.
In some embodiments, the number of the audio vibrator areas is multiple, and voiceprint recognition can be performed on the audio of each audio vibrator area respectively to determine whether the audio is matched with a person.
In some embodiments, the audio vibrator region is a fourth vibrator region, the character vibrator region is a third vibrator region, the character a gender of the character vibrator region is lady, the fourth vibrator region can be labeled as a candidate vibrator region if the audio of the fourth vibrator region is female sound, and the fourth vibrator region is not labeled as a candidate vibrator region if the human sound of the fourth vibrator region is not consistent with the character gender of the third vibrator region.
Step S140: and if the alternative vibrator areas exist in all the audio vibrator areas, controlling vibrators of human body areas in the human body vibrator area to play audio corresponding to the alternative vibrator areas.
If the alternative vibrator area exists, the fact that the audio matched with the character in the image exists at the current moment is indicated, and the vibrator of the character area corresponding to the character vibrator area can be controlled to play the audio corresponding to the alternative vibrator area.
In some embodiments, the person region may be a region within a preset distance of the face, where the preset distance may be a distance between two adjacent oscillators, as shown in fig. 11, if the face of the person is located between the oscillators 0-4, the person region may include the oscillators 0-4; the person region may also be a human face and a region above the human face, and as shown in fig. 11, the person region may further include a vibrator 0 and a vibrator 1.
In some embodiments, the oscillator capable of controlling the human figure region plays the corresponding audio according to the second sound gain coefficient β, where the larger the second sound gain coefficient β is, the larger the volume amplification factor of the audio is, and further the volume of the audio is increased, and the smaller the second sound gain coefficient β is, the smaller the volume amplification factor of the audio is, and further the volume of the audio is decreased.
The second sound gain coefficient beta can be adjusted according to the number of the vibrators in the human figure region. The maximum of the second sound gain coefficient beta is 0db, so that the volume amplification factor of the audio frequency can reach the amplification factor of the loudspeaker. In the related art, the audio is generated by all the vibrators corresponding to one channel, and in this embodiment, only the vibrators in the human figure area are used for generating the audio, the number of the vibrators generated in this embodiment may be less than that of the vibrators generated in the related art, and in order to avoid the situation that the audio volume is too low, according to the embodiment, the smaller the number of the vibrators in the human figure area is, the larger the second sound gain coefficient β may be set, so as to increase the volume amplification factor of the audio.
The second sound gain factor β minimum may make the audio unvoiced. According to the situation that the number of vibrators in the human figure area is smaller, the second sound gain coefficient beta can be set to be smaller, so that the situation that the volume of human sound is too high is avoided.
Step S150: and if the character vibrator area does not exist or the alternative vibrator areas do not exist in all the audio vibrator areas, controlling the vibrators of the audio vibrator areas to play corresponding audio.
If the character vibrator area does not exist, the fact that no character exists in the image at the current moment is indicated, and the vibrator of the audio vibrator area can be controlled to play corresponding audio. In some embodiments, the transducers of the audio transducer region may be controlled to play the corresponding audio according to a first sound gain factor α, where the first sound gain factor α is 0db at most, and the audio may be amplified according to the amplification factor of the speaker, and the first sound gain factor α is at least, and the audio may be soundless.
If the alternative vibrator area does not exist, the fact that the audio matched with the person in the image does not exist at the current moment is indicated, and the vibrator of the audio vibrator area can be controlled to play the corresponding audio. In some embodiments, the elements of the audio element area may be controlled to play the corresponding audio according to the first sound gain factor α.
According to the screen sound production method in the above embodiment, in the scene shown in fig. 8, it is detected that the vibrator area corresponding to the station word "xitenfeng" is the audio vibrator area, and it is detected that the image at the same time as the station word "xitenfeng" is detected, that is, the image shown in fig. 8 has two character vibrator areas, the first character vibrator area is the vibrator area corresponding to the left man, the second character vibrator area is the vibrator area corresponding to the right woman, and the face recognition of the leftmost man is unsuccessful, so that two character vibrator areas are finally obtained. The method is characterized in that the speech "Xieqifeng" is supposed to be a left channel sound production or a full channel sound production, and is a female sound, the audio vibrator area is not matched with a first character vibrator area, namely a vibrator area corresponding to men, and is matched with a second character vibrator area, namely a vibrator area corresponding to women, therefore, the audio vibrator area corresponding to the speech "Xieqifeng" can be marked as an alternative vibrator area corresponding to the second character vibrator area, and the vibrators in the character vibrator area in the second character vibrator area are controlled to play audio corresponding to the alternative vibrator area, namely the speech "Xieqifeng".
Of course, if it is assumed that the phrase "xie taifeng" sounds in the right channel, or the right channel and the bass channel sound together, according to the screen sound production method in the above embodiment, the vibrator in the person region in the second person vibration region still plays the audio corresponding to the alternative vibrator region, that is, the phrase "xie feng" sounds in the right channel, or the right channel and the bass channel sound together, compared with the sound production mode in the related art, the two large-area vibrator sound production modes are that the vibrators producing sound in the embodiment of the present application are concentrated in the person region, and the presence effect is better. In addition, sometimes, there may be more than one candidate oscillator area corresponding to one character, and according to the screen sound production method in the above embodiment, the sound producing oscillators are always concentrated in the character area, so that the telepresence effect is good.
According to the embodiment, the vibration sub-area is divided according to the sound channel mode, the sound channel of the audio is acquired from the video file in real time, the audio vibration sub-area is obtained, people are detected in the image of the video file in real time, people synchronous with the audio are obtained, if the audio is matched with the people, the vibrators in the people area are controlled to play the audio, and the presence effect and the user experience of screen sounding are improved.
Since the above embodiments are all described by referring to and combining with other embodiments, the same portions are provided between different embodiments, and the same and similar portions between the various embodiments in this specification may be referred to each other. And will not be described in detail herein.
It is noted that, in this specification, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a circuit structure, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such circuit structure, article, or apparatus. Without further limitation, the presence of an element identified by the phrase "comprising an … …" does not exclude the presence of other like elements in a circuit structure, article, or device comprising the element.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims. The above embodiments of the present application do not limit the scope of the present application.

Claims (8)

1. A display device, comprising:
the display comprises a screen sounding module, wherein the screen sounding module comprises a plurality of vibrators which are distributed in different display areas of the display;
a controller connected with the display, the controller configured to:
responding to a control signal for indicating playing of a video file, detecting a vibration area corresponding to the audio frequency of the video file in real time to obtain an audio frequency vibration area, wherein the vibration area is divided according to a sound channel mode;
judging whether a character vibrator area exists according to the image of the video file at the same time as the audio, wherein the character vibrator area is a vibrator area corresponding to the position of a character;
if the character vibrator area exists, identifying the tone of the audio of each audio vibrator area through a voiceprint identification algorithm, and judging whether an alternative vibrator area exists, wherein the tone of the audio of the alternative vibrator area is matched with the character of the character vibrator area;
if the alternative oscillator areas exist in all the audio oscillator areas, controlling oscillators in the person areas corresponding to the person oscillator areas to play audio corresponding to the alternative oscillator areas according to a second sound gain coefficient, wherein the second sound gain coefficient is in negative correlation with the number of the oscillators in the person areas;
and if the character vibrator area does not exist or alternative vibrator areas do not exist in all the audio vibrator areas, controlling the vibrators of the audio vibrator areas to play corresponding audio according to a first sound gain coefficient.
2. The display device according to claim 1, wherein the determining whether the candidate vibrator area exists comprises:
judging whether audio vibration areas with human voice exist in all the audio vibration areas;
and if the audio vibration area with the audio being the human voice exists in all the audio vibration areas, judging whether the audio vibration area with the audio being the human voice is the alternative vibration area or not according to the tone color information of the human voice.
3. The display device according to claim 1, wherein the human figure region includes a region within a preset distance of a human face.
4. The display device of claim 1, wherein the controller is further configured to: and dividing the oscillators into different oscillator areas according to the sound channel mode, wherein the sound channel mode comprises the sound channel mode of the video file, or the sound channel mode of the screen sounding module, or the sound channel mode input by a user.
5. The display device of claim 1, wherein the dividing the plurality of elements into different element regions according to the channel mode comprises:
and dividing the oscillator corresponding to the left channel into a first oscillator area and dividing the oscillator corresponding to the right channel into a second oscillator area according to the fact that the channel mode is a 2.0 channel mode.
6. The display device of claim 1, wherein the dividing the plurality of elements into different element regions according to the channel mode of the video file comprises:
dividing vibrators corresponding to a left sound channel into a third vibrator area, dividing vibrators corresponding to a right sound channel into a fourth vibrator area and dividing vibrators corresponding to a bass sound channel into a fifth vibrator area according to the fact that the sound channel mode is a 2.1 sound channel mode; or the like, or, alternatively,
according to the fact that the sound channel mode is a 5.1 sound channel mode, the vibrators corresponding to a left front sound channel and a left rear sound channel are divided into the third vibrator area, the vibrators corresponding to a right front sound channel and a right rear sound channel are divided into the fourth vibrator area, and the vibrators corresponding to a bass sound channel are divided into the fifth vibrator area.
7. The utility model provides a screen sound production method for display device, its characterized in that, display device includes the display, the display includes screen sound production module, screen sound production module includes a plurality of oscillators, the oscillator distributes in the different display area of display, screen sound production method includes:
responding to a control signal for indicating playing of a video file, detecting a vibration area corresponding to the audio frequency of the video file in real time to obtain an audio frequency vibration area, wherein the vibration area is divided according to a sound channel mode;
judging whether a character vibrator area exists according to an image of the video file at the same time as the audio, wherein the character vibrator area is a vibrator area corresponding to the position of a character;
if the character vibrator area exists, identifying the tone of the audio of each audio vibrator area through a voiceprint identification algorithm, and judging whether an alternative vibrator area exists, wherein the tone of the audio of the alternative vibrator area is matched with the character of the character vibrator area;
if the alternative oscillator areas exist in all the audio oscillator areas, controlling oscillators in the person areas corresponding to the person oscillator areas to play audio corresponding to the alternative oscillator areas according to a second sound gain coefficient, wherein the second sound gain coefficient is in negative correlation with the number of the oscillators in the person areas;
and if the character vibrator area does not exist or alternative vibrator areas do not exist in all the audio vibrator areas, controlling the vibrators of the audio vibrator areas to play corresponding audio according to a first sound gain coefficient.
8. The screen sound generation method of claim 7, further comprising: and if the alternative vibrator area does not exist in all the audio vibrator areas, controlling the vibrator of the audio vibrator area to play corresponding audio.
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CN116158091A (en) * 2020-06-29 2023-05-23 海信视像科技股份有限公司 Display device and screen sounding method
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