Display device and sound effect setting method

Abstract

According to the display equipment and the sound effect setting method provided by some embodiments of the invention, the method can respond to the selection instruction of the installation mode, and the target mode indicated by the selection instruction is analyzed. Wherein the selection instruction is generated based on the startup navigation interface or the menu interface. And loading a sound effect file corresponding to the target mode, setting sound parameters of the audio processor according to the sound effect file, and reading equalizer parameters corresponding to the target mode. Wherein the sound effect file comprises sound effect parameters. And writing the equalizer parameter into the power amplifier, so that the audio output device outputs sound corresponding to the audio signal based on the target mode. Wherein the power amplifier is provided with a corresponding dynamic range compression parameter. According to the method, based on the installation mode of the display equipment, different modes are switched to set the sound effect, sound loss of the display equipment caused by different installation modes can be reduced, and then the sound quality effect of sound output by the display equipment is improved.

Description

Technical Field

[0001] This application relates to the field of display device technology, and in particular to a display device and a sound effect setting method. Background Technology

[0002] Display devices are intelligent devices capable of presenting a user interface and supporting user interaction. Taking smart TVs as an example, smart TVs are television products based on Internet application technology, equipped with open operating systems and chips, possessing open application platforms, enabling two-way human-computer interaction, and integrating multiple functions such as audio-visual, entertainment, and data to meet diverse and personalized user needs.

[0003] When playing sound, display devices can reproduce various sound frequencies through their built-in audio system. High-frequency sounds typically appear as crisp, sharp tones, such as birdsong or bell sounds, conveying more detail and clarity. Low-frequency sounds, on the other hand, appear as deep, rich tones, such as drumbeats or double basses. In display devices, high-frequency and low-frequency sounds can be played through different speakers (or loudspeakers). For example, the main speaker of the display device handles the mid-to-high frequency range, while the subwoofer handles the low-frequency range. Furthermore, display devices can also be equipped with overhead and surround sound speakers to achieve stereo sound effects.

[0004] However, display devices are fixed in various ways during use, such as wall-mounting, tabletop placement, or recessed installation. Different installation methods cause different levels of sound loss, thus affecting the sound output of the display device. For example, display devices have multiple speakers (or loudspeakers) in different locations. Wall-mounting will cause low-frequency attenuation of the rear speakers; tabletop placement will cause high-frequency attenuation of the bottom speakers; and recessed installation, where the display device is completely embedded in the mounting medium, will further obstruct sound and attenuate both low and high frequencies. Summary of the Invention

[0005] This application provides a display device and a sound effect setting method to solve the problem of poor sound effect of the display device.

[0006] In a first aspect, some embodiments of this application provide a display device, including a display, an audio output device, and a controller. The controller is coupled to the display and the audio output device; the display is configured to display a user interface, the user interface including a power-on navigation interface and a menu interface for selecting an installation mode, the installation mode including a first mode and / or a second mode; the audio output device is configured to output sound corresponding to an audio signal, the audio output device including a power amplifier and an audio processor, the power amplifier being provided with corresponding dynamic range compression parameters; the controller is configured to execute the following program steps:

[0007] In response to an installation mode selection command, the target mode indicated by the selection command is parsed, the selection command being generated based on the boot navigation interface or the menu interface;

[0008] Load the sound effect file corresponding to the target mode, the sound effect file including sound effect parameters;

[0009] Set the audio processor's sound parameters according to the sound effect file;

[0010] Read the equalizer parameters corresponding to the target mode;

[0011] The equalizer parameters are written into the power amplifier so that the audio output device outputs the sound corresponding to the audio signal based on the target mode.

[0012] The above technical solution has the following advantages or beneficial effects: the display device can be compatible with the sound effect settings of multiple installation modes, and the sound effects can be set according to the corresponding method when the display device is powered on or when the user actively switches the installation mode. The display device can set the DRC (Dynamic Range Compression) and EQ (Equalizer) of the power amplifier (such as a digital power amplifier) ​​according to the target mode (the currently selected installation mode), and simultaneously set the corresponding sound effect parameters of the audio processor (i.e., the audio processing chip), which can reduce the sound loss of the display device output, thereby improving the sound effect of the display device.

[0013] In some embodiments of this application, the controller is configured to load the sound effect file corresponding to the target mode by: calling a query interface to obtain the current sound effect type and sound mode; querying the file path according to the sound effect type, the sound mode and the target mode; and loading the sound effect file according to the file path.

[0014] The above technical solution has the following advantages or beneficial effects: the middleware of the display device can obtain the sound effect type and sound mode of the current display device through the get interface (query interface), and then query the corresponding sound effect file through the obtained sound effect type and sound mode, so that the queried sound effect file can be adapted to different scenarios to optimize the sound effect of the display device in various scenarios.

[0015] In some embodiments of this application, the controller executes the reading of equalizer parameters corresponding to the target mode, specifically configured to: read the serial number of the power amplifier; call the equalizer parameter loading interface of the power amplifier; pass the target mode and the serial number to the equalizer parameter loading interface so that the equalizer parameter loading interface loads the equalizer parameters in the configuration file, the configuration file including the equalizer parameters corresponding to the installation mode; and store the equalizer parameters loaded by the equalizer parameter loading interface in memory.

[0016] The above technical solution has the following advantages or beneficial effects: the number of power amplifiers is read through the middleware interface to determine the order, the load interface (equalizer parameter loading interface) is called to load the corresponding power amplifier EQ parameters, and they are stored in memory so that the power amplifier EQ parameters can be read and loaded in the future.

[0017] In some embodiments of this application, the controller executes the writing of the equalizer parameters to the power amplifier, specifically configured to: write the equalizer parameters in memory to the register of the power amplifier via a serial communication protocol according to the power amplifier's serial number; read the specification parameters of the register; and update the parameters of the register according to the specification parameters.

[0018] The above technical solution has the following advantages or beneficial effects: the power amplifier EQ parameters are written into the register of the corresponding power amplifier according to the obtained configuration file, so that the power amplifier can set the EQ to optimize the sound effect of the display device.

[0019] In some embodiments of this application, when the selection instruction is generated based on the power-on navigation interface, the controller is further configured to: respond to the power-on instruction, control the display to display the power-on navigation interface; parse the first power amplifier information, the first power amplifier information including the type, quantity, address and number of connected buses of the power amplifier; query the corresponding device driver according to the first power amplifier information; call the driver function of the device driver; and pass the first power amplifier information to the driver function to initialize the power amplifier.

[0020] The above technical solution has the following advantages or beneficial effects: When the display device is powered on, the controller starts the operating system and displays the boot navigation interface; it resolves the type, quantity, address, and I2C bus quantity of the power amplifier through the Kernel layer and queries the device driver that matches the power amplifier. Then, by passing the above information to the driver function of the device driver, the power amplifier initialization operation is implemented, enabling the display device to be compatible with sound effect settings and sound output in different installation modes.

[0021] In some embodiments of this application, after the controller performs the step of passing the power amplifier information to the drive function, it is further configured to: parse the second power amplifier information of the display device, the second power amplifier information including the type, quantity, address, bus number, and address of the dynamic range compression parameter of the power amplifier; store the dynamic range compression parameter in memory; write the dynamic range compression parameter in memory into the register of the power amplifier according to the second power amplifier information, the dynamic range compression parameter being associated with the power amplifier, and different power amplifiers being associated with different dynamic range compression parameters; and generate the selection instruction based on the boot navigation interface.

[0022] The above technical solution has the following advantages or beneficial effects: After the Kernel layer completes the initialization of the power amplifier, the middleware layer continues to initialize the sound module, as well as set the DRC, EQ and default installation mode sound effects, so that the display device can correctly execute the initialization of the entire audio output device after power-on and is compatible with the sound effect settings under various installation modes.

[0023] In some embodiments of this application, the power amplifier includes at least a first power amplifier, which is the power amplifier with the maximum power output in the audio output device; a dynamic range compression parameter associated with the first power amplifier is used to provide gain to the audio signal of the first power amplifier; the audio signal of the first power amplifier includes a first audio signal with a frequency greater than or equal to a first target value, and a second audio signal with a frequency less than the first target value; the gain provided by the dynamic range compression parameter to the first audio signal is less than the gain provided by the dynamic range compression parameter to the second audio signal.

[0024] The above technical solution has the following advantages or beneficial effects: for the first power amplifier (such as the main power amplifier) ​​of the display device, it provides moderate gain in the low frequency range and enhanced gain in the mid-to-high frequency range to optimize the clarity of human voice and the performance of musical details.

[0025] In some embodiments of this application, the power amplifier further includes a second power amplifier for amplifying and enhancing low-frequency signals with frequencies less than a preset value in the audio signal; a dynamic range compression parameter associated with the second power amplifier is used to provide gain to the audio signal of the second power amplifier; the audio signal of the second power amplifier includes a third audio signal with a frequency less than a second target value and a fourth audio signal with a frequency less than the second target value; the gain provided by the dynamic range compression parameter to the third audio signal is greater than the gain provided by the dynamic range compression parameter to the fourth audio signal.

[0026] The above technical solution has the following advantages or beneficial effects: for the second power amplifier (such as a subwoofer amplifier) ​​of the display device, the low-frequency gain is significantly enhanced, while the mid-frequency gain is relatively reduced, so as to enhance the bass effect and avoid the vocals being thin.

[0027] In some embodiments of this application, the controller is further configured to: when the installation mode of the display device only includes the second mode, after the controller performs the step of parsing the target mode indicated by the selection instruction, it is further configured to: parse the sound effect configuration attribute; if the sound effect configuration attribute is a first attribute, then perform the step of loading the sound effect file corresponding to the target mode (i.e., the step of setting sound effect parameters and power amplifier DRC and EQ); if the sound effect configuration attribute is a second attribute, then load the PEQ parameters corresponding to the target mode, and set the PEQ module of the audio processor according to the PEQ parameters, so that the audio output device plays the sound corresponding to the audio signal based on the PEQ parameters.

[0028] The above technical solution has the following advantages or beneficial effects: For display devices that only support seated and wall-mounted modes, when setting sound effects, the display device can determine which method to use to set the sound effects through preset configuration attributes. If the configuration attribute is the first attribute, the display device will continue to set the sound effect parameters of the audio processor and the EQ and DRC of the digital power amplifier to set the sound effects; if the configuration attribute is the second attribute, the display device can enable the PEQ function at the mechanism level, and increase or decrease the sound gain of certain frequency bands by setting the PEQ at the mechanism level, thereby compensating for the sound loss caused by the second mode and improving the sound effects of the display device.

[0029] Secondly, some embodiments of this application provide a sound effect setting method, including the following steps:

[0030] In response to an installation mode selection command, the target mode indicated by the selection command is parsed, the selection command being generated based on the boot navigation interface or menu interface;

[0031] Load the sound effect file corresponding to the target mode, the sound effect file including sound effect parameters;

[0032] Set the audio processor's sound parameters according to the sound effect file;

[0033] Read the configuration file corresponding to the target mode, the configuration file including the dynamic range compression parameters and equalizer parameters of the power amplifier;

[0034] The dynamic range compression parameters and the equalizer parameters are written into the power amplifier according to the configuration file, so that the audio output device outputs the sound corresponding to the audio signal based on the target mode.

[0035] As can be seen from the above technical solutions, the display device and sound effect setting method provided in some embodiments of this application can respond to the installation mode selection command and parse the target mode indicated by the selection command. The selection command is generated based on the boot navigation interface or menu interface. The sound effect file corresponding to the target mode is loaded, and then the sound parameters of the audio processor are set according to the sound effect file, and the equalizer parameters corresponding to the target mode are read. The sound effect file includes sound effect parameters. The equalizer parameters are then written to the power amplifier so that the audio output device outputs the sound corresponding to the audio signal based on the target mode. The power amplifier is set with corresponding dynamic range compression parameters. This method, based on the installation mode of the display device, switches between different methods to set the sound effects, which can reduce the sound loss caused by different installation modes to the display device, thereby improving the sound quality of the output sound of the display device. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram illustrating an operational scenario between a display device and a control device provided in some embodiments of this application;

[0038] Figure 2 This is a schematic diagram of the hardware configuration of a display device provided in some embodiments of this application;

[0039] Figure 3 This is a schematic diagram of the software configuration of a display device provided in some embodiments of this application;

[0040] Figure 4 A menu interface for selecting an installation mode provided in some embodiments of this application;

[0041] Figure 5A flowchart illustrating a sound effect setting method provided in some embodiments of this application;

[0042] Figure 6 A schematic diagram illustrating the kernel-level power amplifier initialization process provided in some embodiments of this application;

[0043] Figure 7 A hierarchical architecture diagram for setting sound effects in display devices provided in some embodiments of this application;

[0044] Figure 8 A flowchart illustrating the kernel-level power amplifier initialization process provided in some embodiments of this application;

[0045] Figure 9 A schematic diagram illustrating the middleware layer initialization process for the power amplifier provided in some embodiments of this application;

[0046] Figure 10 Example flowchart of middleware layer initialization of power amplifier provided for some embodiments of this application;

[0047] Figure 11 This is a schematic diagram of the process for loading the sound effect file corresponding to the first mode, provided in some embodiments of this application.

[0048] Figure 12 A schematic diagram of the process for loading equalizer parameters corresponding to the first mode provided in some embodiments of this application;

[0049] Figure 13 A schematic diagram illustrating the process of setting power amplifier EQ parameters provided in some embodiments of this application;

[0050] Figure 14 This is a flowchart illustrating the process of switching installation modes provided in some embodiments of this application. Detailed Implementation

[0051] The embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described below do not represent all embodiments consistent with this application. They are merely examples of systems and methods consistent with some aspects of this application as detailed in the claims.

[0052] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0053] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0054] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0055] The term "module" refers to any known or subsequently developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and / or software code that is capable of performing the functions associated with that element.

[0056] In this embodiment, the display device 200 generally refers to a device with screen display and data processing capabilities. For example, the display device 200 includes, but is not limited to, smart TVs, mobile terminals, computers, monitors, advertising screens, wearable devices, virtual reality devices, augmented reality devices, etc.

[0057] Figure 1 This is a schematic diagram illustrating an operational scenario between a display device and a control device provided in some embodiments of this application. For example... Figure 1 As shown, a user can operate the display device 200 via touch operation, a mobile terminal 300, and a control device 100. The control device 100 receives user input commands and converts them into control commands that the display device 200 can recognize and respond to. For example, the control device 100 can be a remote control, a stylus, a gamepad, etc.

[0058] The mobile terminal 300 can function as a control device for human-computer interaction between the user and the display device 200. It can also function as a communication device for establishing a communication connection with the display device 200 and exchanging data. In some embodiments, the mobile terminal 300 can have software applications installed on it and communicate with the display device 200 via network communication protocols to achieve one-to-one control and data communication. Furthermore, it can transmit audio and video content displayed on the mobile terminal 300 to the display device 200 for synchronized display.

[0059] In some embodiments, the mobile terminal 300 or other electronic devices may also simulate the functions of the control device 100 by running an application that controls the display device 200.

[0060] like Figure 1The diagram also shows that the display device 200 communicates with the server 400 via various communication methods. This allows the display device 200 to communicate via a local area network (LAN), a wireless local area network (WLAN), and other networks.

[0061] Display device 200 can provide broadcast television reception function, and can also be equipped with intelligent network television function that provides computer support, including but not limited to network television, smart television, Internet Protocol television (IPTV), etc.

[0062] Figure 2 Provided for some embodiments of this application Figure 1 Hardware configuration block diagram of display device 200.

[0063] In some embodiments, the display device 200 may include at least one of a tuner 210, a communication device 220, a detector 230, a device interface 240, a controller 250, a display 260, an audio output device 270, a memory, a power supply, and a user input interface.

[0064] In some embodiments, detector 230 is used to acquire signals from the external environment or to interact with the outside world. For example, detector 230 includes a light receiver, a sensor for acquiring ambient light intensity; or, detector 230 includes an image acquisition device, such as a camera, which can be used to acquire external environmental scenes, user attributes, or user interaction gestures; or, detector 230 includes a sound acquisition device, such as a microphone, for receiving external sounds.

[0065] In some embodiments, the display 260 includes display function components for presenting images and driving components for driving image display. The display 260 is used to receive and display image signals output from the controller 250. For example, the display 260 can be used to display video content, image content, menu control interface components, and user control UI interfaces, etc.

[0066] In some embodiments, the communication device 220 is a component used to communicate with external devices or the server 400 according to various communication protocol types. The display device 200 may have multiple communication devices 220 depending on the supported communication methods. For example, when the display device 200 supports wireless network communication, it may have a communication device 220 with WiFi functionality. When the display device 200 supports Bluetooth connectivity, it needs to have a communication device 220 with Bluetooth functionality.

[0067] The communication device 220 enables the display device 200 to communicate with external devices or the server 400 via wireless or wired connections. Wired connections utilize data cables, interfaces, or other components to connect the display device 200 to external devices. Wireless connections utilize wireless signals or wireless networks. The display device 200 can directly establish a connection with external devices or indirectly through gateways, routers, or other connection devices.

[0068] In some embodiments, the controller 250 may include at least one of a central processing unit, a video processor, an audio processor, a graphics processor, and a power processor, and a first to an nth interface for input / output. 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 controls the overall operation of the display device 200.

[0069] In some embodiments, the controller 250 and the tuner 210 may be located in different separate devices, that is, the tuner 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.

[0070] In some embodiments, a user can input user commands through a graphical user interface (GUI) displayed on a display 260, and the user input interface receives user input commands through the graphical user interface (GUI).

[0071] In some embodiments, the audio output device 270 can be a built-in speaker of the display device 200 or an external audio output device connected to the display device 200. For the external audio output device connected to the display device 200, the display device 200 may also be provided with an external audio output terminal, through which the audio output device can be connected to the display device 200 to output sound from the display device 200.

[0072] In some embodiments, the user input interface 280 can be used to receive instructions from user input.

[0073] To enable user interaction, in some embodiments, the display device 200 may run an operating system. The operating system is a computer program used to manage and control the hardware and software resources of the display device 200. The operating system can control the display device to provide a user interface; for example, the operating system can directly control the display device to provide a user interface, or it can provide a user interface by running an application. The operating system also allows users to interact with the display device 200.

[0074] It should be noted that the operating system can be a native operating system based on a specific operating platform, a third-party operating system that is deeply customized based on a specific operating platform, or an independent operating system specifically developed for display devices.

[0075] An operating system can be divided into different modules or levels based on the functions it implements, for example... Figure 3 As shown, in some embodiments, the system is divided into four layers, from top to bottom: the Applications layer (referred to as the "Application Layer"), the Application Framework layer (referred to as the "Framework Layer"), the System Library layer, and the Kernel layer.

[0076] In some embodiments, the application layer provides services and interfaces for applications, enabling the display device 200 to run applications and interact with the user based on the applications. The application layer may contain at least one application, which may be a built-in Windows program, system settings program, or clock program of the operating system; or it may be an application developed by a third-party developer. In specific implementations, the application packages in the application layer are not limited to the examples above.

[0077] The framework layer provides application programming interfaces (APIs) and a programming framework for applications. The application framework layer includes predefined functions. It acts as a central processing unit, determining the actions taken by applications within the application layer. Through the API, applications can access system resources and obtain system services during execution.

[0078] like Figure 3As shown, the application framework layer in this embodiment includes a view system, managers, and content providers. The view system designs and implements the application's interface and interactions, and includes lists, grids, text boxes, and buttons. The managers include at least one of the following modules: an activity manager for interacting with all running activities in the system; a location manager for providing system services or applications with access to system location services; a package manager for retrieving various information related to application packages currently installed on the device; a notification manager for controlling the display and clearing of notification messages; and a window manager for managing icons, windows, toolbars, wallpapers, and desktop widgets on the user interface.

[0079] In some embodiments, the Activity Manager manages the lifecycle of individual applications and common navigation and back functions, such as controlling application exit, opening, and back actions. The Window Manager manages all window programs, such as obtaining the screen size, determining if a status bar is present, locking the screen, capturing the screen, and controlling changes to the display window, such as shrinking the display window, shaking the display, or distorting the display.

[0080] In some embodiments, the system runtime library layer can provide support for the framework layer. When the framework layer is used, the operating system runs the instruction library contained in the system runtime library layer, such as the C / C++ instruction library, to implement the functions to be performed by the framework layer.

[0081] In some embodiments, the kernel layer is a functional layer situated between the hardware and software of the display device 200. The kernel layer can implement functions such as hardware abstraction, multitasking, and memory management. For example, ... Figure 3 As shown, hardware drivers can be configured in the kernel layer. The drivers included in the kernel layer can be at least one of the following: audio driver, display driver, Bluetooth driver, camera driver, WIFI driver, USB driver, HDMI driver, sensor driver (such as fingerprint sensor, temperature sensor, pressure sensor, etc.), and power driver, etc.

[0082] It should be noted that the above examples are merely a simple division of operating system functions and do not limit the specific form of the operating system of the display device 200 in this application embodiment. Depending on the function of the display device, the type of operating system, and other factors, the number of levels and the specific level type of the operating system may be expressed in other forms.

[0083] In some embodiments, the display device 200 can display the video signal image on the monitor 260 and output the audio signal sound through the audio output device 270, thereby providing the user with an audiovisual experience. The video signal and audio signal can be integrated audio and video data or separate data. The display device 200 can receive or acquire the video signal and audio signal in different ways and control the monitor 260 and audio output device 270 to play the video signal image and the audio signal sound.

[0084] In some embodiments, the audio output device 270 of the display device 200 includes an audio processor configured to decode, equalize, filter, and process the audio signal to extract sound components of different frequencies and adjust their volume, timbre, and sound effects.

[0085] In some embodiments, the audio output device 270 further includes a power amplifier and a speaker, the power amplifier being coupled to the speaker. After the audio processor of the display device 200 processes the audio signal, it can output the processed audio signal to the power amplifier (also known as a power amplifier) ​​in the audio output device 270. The main function of the power amplifier is to amplify the weak signal from the sound source or other audio device, giving it sufficient power output to drive the speaker in the audio output device 270 to produce sound, thus realizing the sound conversion of the audio signal.

[0086] In some embodiments, the audio output device 270 includes an audio processor, a power amplifier, and a speaker. The display device 200 can collaboratively process the audio signal using the audio processor, power amplifier, and speaker to output the sound corresponding to the audio signal.

[0087] In some embodiments, the audio output device 270 of the display device 200 may include multiple amplifiers and speakers, and different amplifiers and speakers may be arranged at different locations on the display device 200 to output different sound effects. For example, the audio output device 270 of the display device 200 may be arranged at the top, bottom, side and back of the display 260 to present different sound effects.

[0088] During use, the display device 200 can be installed using different methods, such as tabletop or wall-mounted. To save space, the display device 200 can also be installed in a recessed manner, embedding it into a specific mounting medium, such as a wall. However, all of these installation methods will affect the sound output of the display device 200, resulting in some loss of sound quality.

[0089] For example, in seated mode, the plane on which the display device 200 is placed will cause high-frequency attenuation to the audio output device 270 located below the display device 200, and the degree of attenuation is related to the distance between the display device 200 and the plane; in wall-mounted mode, the plane on which the display device 200 is wall-mounted will cause low-frequency attenuation to the audio output device 270 located on the back of the display device 200, and the degree of attenuation is related to the gap between the display device 200 and the plane.

[0090] Therefore, in some embodiments, the display device 200 can improve or reduce the sound gain of a specific frequency band by setting the PEQ (Parametric Equalizer) of the core (audio processor), that is, adjusting the gain and bandwidth of the center frequency, thereby compensating for the sound loss caused by different installation methods.

[0091] In some embodiments, when setting the PEQ at the mechanism end, the display device 200 can individually set the gain and bandwidth of 10 center frequencies. In wall-mount mode, the display device 200 queries the center frequency of the low-frequency band (e.g., 60Hz) and appropriately increases its gain (e.g., +3dB), while slightly reducing the gain of the high-frequency band to avoid excessively sharp sound. In floor-standing mode, the display device 200 queries the center frequency of the high-frequency band (e.g., 5kHz) and appropriately reduces its gain (e.g., -2dB), while slightly increasing the gain of the low-frequency and mid-frequency bands to enhance the fullness and clarity of the sound.

[0092] It should be noted that the aforementioned high-frequency band, low-frequency band, and mid-frequency band can be frequency ranges determined based on audio signals. The low-frequency band refers to audio signals with frequencies in a relatively low range, the mid-frequency band is the part of the audio signal located between low and high frequencies, and the high-frequency band refers to the part of the audio signal with relatively high frequencies. This application does not limit the specific numerical range of each frequency band.

[0093] However, for the embedded display device 200, since the display device 200 is embedded in the mounting carrier, the mounting carrier has a stronger degree of obstruction on each audio output device, resulting in more severe attenuation of low and high frequencies in the sound output by the display device 200. At this time, the PEQ setting method cannot improve the attenuation of the sound, which causes the sound quality of the display device 200 to degrade and affect the user's listening experience.

[0094] Therefore, some embodiments of this application provide a display device 200, which can set sound effects in different ways according to its supported installation mode. For a display device 200 that supports embedded mode, the display device 200 can simultaneously set the sound effect parameters of the audio processor and the DRC and EQ of the digital power amplifier to compensate for sound loss. Meanwhile, for a display device 200 that does not support embedded mode, the display device 200 can set sound effects by simultaneously setting the sound effect parameters of the audio processor and the DRC and EQ of the digital power amplifier, or by setting the PEQ at the chassis level to compensate for sound loss, resulting in better sound output from the display device 200 and thus improving the user's auditory experience.

[0095] In this embodiment, DRC and EQ are set, as well as sound effect parameters, according to at least one of the following principles: 1. Based on the hardware structure of the display device 200, the specifications of the audio output device 270, and the installation mode, different gains are provided for different frequency bands to improve the output sound effect; 2. The surround sound, vocal, and bass sound effects are adjusted to compensate for sound loss; 3. Different parameters are set according to the attenuation of different audio frequency bands to compensate for the attenuation of each frequency band.

[0096] In some embodiments, the display device 200 includes a display 260, an audio output device 270, and a controller 250. The controller 250 is coupled to the display 260 and the audio output device 270. The display 260 is configured to display a user interface, and the audio output device 270 is configured to output sound corresponding to an audio signal. The audio output device 270 includes at least an audio processor and a power amplifier (such as a digital amplifier).

[0097] In some embodiments, the user interface displayed on the display 260 includes a boot navigation interface and a menu interface for selecting an installation mode. The boot navigation interface is the interface that is automatically displayed when the display device 200 is powered on. It can use a grid layout or a list layout to display various functions or content to the user in the form of icons or text, such as recently watched programs, popular recommendations, app store, settings, etc.

[0098] The menu interface for selecting the installation mode is based on user operation events. In this menu interface, users can select the appropriate installation mode according to their needs and the TV's installation environment. This menu interface can use a list layout to display different installation modes to the user in text form, such as wall-mounted mode, desktop mode (sitting mode), stand mode (sitting mode), and embedded mode.

[0099] For example, display device 200 can display such as Figure 4 The menu interface shown is used to switch or set the installation mode of the display device 200. The menu interface includes an installation mode tab 401 and a switch control 402. The switch control 402 has two state values. When the user selects the corresponding tab, the display device 200 can set the switch control of that tab to the "on" state, switching from the current installation mode to the corresponding mode.

[0100] In some embodiments, the menu interface for selecting the installation mode can also be automatically displayed based on operation events of the display device 200, such as when the display device 200 performs a system update, in order to improve the convenience of the display device 200 and ensure the accuracy of the installation mode.

[0101] For ease of description and distinction, some embodiments of this application refer to the embedded mode as the first mode, and the wall-mounted mode and the seated mode as the second mode.

[0102] In some embodiments, the installation modes supported by the display device 200 include a first mode and / or a second mode. That is, the display device 200 may support both the first mode and the second mode simultaneously, or it may only support one of the first mode and the second mode. For example, the display device 200 may be compatible with in-wall, tabletop, and wall-mounted installation methods; or, the display device 200 may only support wall-mounted and tabletop modes, and not in-wall mode.

[0103] like Figure 5 As shown, in some embodiments, the controller 250 is configured to perform the following procedure steps:

[0104] S501: In response to the installation mode selection command, parse the target mode indicated by the selection command.

[0105] After detecting a selection instruction for an installation mode, the display device 200 can parse the selection instruction to determine the target mode indicated by the selection instruction. In some embodiments, the selection instruction may be an instruction automatically generated by the display device 200 based on the power-on navigation interface, or it may be an instruction entered by the user based on the menu interface.

[0106] In some embodiments, for the power-on process of the display device 200, if the display device 200 is being powered on for the first time, the target mode indicated by the selection instruction generated by the display device 200 based on the power-on navigation interface is the default installation mode; while if the display device 200 is not being powered on for the first time, the target mode indicated by the selection instruction generated by the display device 200 based on the power-on navigation interface is the installation mode selected during the last power-on recorded in the database.

[0107] The display device 200 can be powered on in different ways, such as by the user inputting a power-on command into the display device 200, by timed power-on, voice control power-on, inputting a power-on command into the display device 200 through a control device, standby wake-up, or powering on the display device 200 via a button.

[0108] like Figure 6 As shown, in some embodiments, after receiving the above-mentioned power-on command, the display device 200 can respond to the power-on command by controlling the display 260 to display the power-on navigation interface (S601), and then parse the first power amplifier information (S602), wherein the first power amplifier information may include the type, quantity, address and number of connected buses of the power amplifier.

[0109] For example, based on Figure 3 The software framework diagram shown can be further represented as follows: The hierarchy of display device 200 can also be represented as follows: Figure 7 The diagram shows the application layer, application programming interface framework layer, middleware layer, HAL layer (Hardware Abstraction Layer), kernel layer, and hardware layer.

[0110] like Figure 8 As shown, when the display device 200 detects a power-on command, it responds by starting the kernel. After the kernel starts, it parses the power amplifier configuration file located in a fixed path and obtains the power amplifier information configured for the current display device 200 model, including the power amplifier type (AMP_TYPE), the number of power amplifiers (AMP_TOTAL_NUM), the power amplifier address (AMP_ID), and the number of I2C buses connected to the power amplifier (I2CNUM).

[0111] In some embodiments, after the display device 200 parses the first power amplifier information, it queries the corresponding device driver based on the first power amplifier information (S603) and calls the driver function of the device driver (S604). Then, the first power amplifier information is passed to the driver function to initialize the power amplifier (S605). That is, after the display device 200 is powered on, it performs the initialization of the digital power amplifier based on the kernel.

[0112] For example, after obtaining the power amplifier information configured for the current display device 200 model, the display device 200 iterates through the historically registered device drivers on the corresponding I2C bus until a match is found that corresponds to the power amplifier type name (e.g., AMPLIFI ER_I2S_NTP8928). If a match is found, the corresponding power amplifier driver function is called, and the obtained power amplifier information is passed to that driver function to initialize the power amplifier. If no matching device driver is found, an error is returned, and the display device 200 cannot initialize the power amplifier.

[0113] In some embodiments, the display device 200 can operate the potential of the mute gpio (mute control pin) / reset gpio (reset control pin) according to preset rules. Then, based on the acquired number of power amplifiers and if the address is not empty, the parameter file under the corresponding path is loaded, and the parameters parsed from the parameter file are written into the power amplifier at the corresponding address via the I2C communication protocol to initialize the power amplifier.

[0114] For example, such as Figure 8 As shown, the display device 200 can operate the high and low potentials of the mute / reset GPIO according to the power-on timing requirements of different digital power amplifier specifications (e.g., the NTP8928 power amplifier requires the mute pin to be pulled low first, then the reset pin to be pulled low for 10ms, then the reset pin to be pulled high, and then the reset pin to be pulled low again after 5ms).

[0115] After the display device 200 operates on the high / low potential of the mute / reset GPIO, it loads the corresponding power amplifier parameter file from the corresponding path based on the acquired number of power amplifiers and, if the corresponding power amplifier address is not 0. The parsed parameters are then written to the power amplifier device at the corresponding address and with the specified i2cnum via the I2C communication protocol. The display device 200 also writes the contents of the power amplifier parameter files for all power amplifiers currently supported by it to the corresponding power amplifiers, thus completing the initialization of all power amplifiers. The parameters in the power amplifier parameter files are adjusted according to the power amplifier specifications, output power, etc., to meet the audio power requirements.

[0116] After the display device 200 is powered on, the kernel layer performs the initialization of the power amplifier described above. For example... Figure 7 As shown, the initialization of the audio system of the display device 200 continues through the middleware layer. That is, in some embodiments, such as... Figure 9As shown, the controller 250 of the display device 200 also parses the second power amplifier information of the display device 200 (S901). The second power amplifier information includes the type, quantity, address, bus number, and address of the dynamic range compression parameters of the power amplifiers. The first power amplifier information and the second power amplifier information are stored in files in different locations.

[0117] For example, a specific sound module in the middleware parses the power amplifier configuration file at a fixed location, and obtains the power amplifier information corresponding to the current display device model 200 from the power amplifier configuration file, including the power amplifier type, quantity, each power amplifier address and I2C number, and the register address of each parameter of the DRC.

[0118] Since different models of display devices 200 support different installation modes, in some embodiments, to ensure compatibility with all models of display devices, when the installation mode of display device 200 supports the first mode, display device 200 can compensate for sound loss caused by setting the DRC and EQ of the digital power amplifier and simultaneously setting the audio parameters, i.e., the audio parameters in the audio processor. When the installation mode of display device 200 only supports the second mode, display device 200 can compensate for sound loss by setting the PEQ at the chassis level, i.e., setting the PEQ of the audio processor; alternatively, it can set the sound effects of display device 200 by setting the DRC and EQ of the digital power amplifier and simultaneously setting the audio parameters as described above.

[0119] It should be noted that the installation mode of the display device 200 supports scenarios where the first mode is supported, including scenarios where the display device 200 supports both the first and second modes simultaneously, as well as scenarios where the display device 200 only supports the first mode. This application does not impose any limitations on this.

[0120] Therefore, after parsing the second power amplifier information, the display device 200 stores the dynamic range compression parameters in memory (S902). Then, according to the second power amplifier information, the dynamic range compression parameters in memory are written into the register of the power amplifier (S903). The dynamic range compression parameters are associated with the power amplifier, and different power amplifiers are associated with different dynamic range compression parameters. Then, a selection instruction is generated based on the boot navigation interface to determine the current sound effect strategy to be set (S904). The sound effect strategy may include the sound effect strategy corresponding to the first mode supported by the display device 200 and the sound effect strategy corresponding to the second mode only supported by the display device 200 (or when the display device 200 does not support the first mode).

[0121] For example, such as Figure 10As shown, after the middleware's audio module parses the second power amplifier information, it sequentially reads all the corresponding power amplifier's DRC parameters from the database into memory (e.g., mDRCSetting[AMP_INDEX][DRC_PARAM_TYPE], where AMP_INDEX represents the power amplifier serial number and DRC_PARAM_TYPE represents the DRC parameter type). When the middleware creates an audio path, the middleware's audio module writes the power amplifier parameters stored in memory into the corresponding power amplifier's registers via the I2C communication protocol.

[0122] For example, in the process of display device 200 writing power amplifier parameters to registers via the I2C communication protocol, an NT P8928 power amplifier with address 0x54 is mounted on I2C0. The register address of the DRC parameter PaGain is 0xc, and the data stored in the corresponding array is [1,229,24,24,17]. Display device 200 then writes one byte E5 to the 0x0c register of the device with address 0x54 on the I2C0 bus.

[0123] Regarding the above embodiments Figure 9 Steps S901-S903 are shown below:

[0124] In some embodiments, the DRC parameters acquired by the display device 200 include at least one of drcL (low-frequency dynamic range compression), drcS (mid-frequency dynamic range compression), drcH (high-frequency dynamic range compression), and PAGain (power amplifier gain). Different power amplifiers are set with different type values ​​according to their functions; that is, different power amplifiers can be associated with different DRC parameters.

[0125] In some embodiments, the audio power amplifier of the display device 200 includes at least a first power amplifier, which is the power amplifier with the maximum power output in the audio output device. That is, the first power amplifier is responsible for the main power output of the audio of the display device 200. The first power amplifier can also be referred to as the main power amplifier.

[0126] Accordingly, in some embodiments, the dynamic range compression parameters associated with the first power amplifier are used to provide gain to the audio signal of the first power amplifier; the audio signal of the first power amplifier includes a first audio signal with a frequency greater than or equal to a first target value, and a second audio signal with a frequency less than the first target value; the gain provided by the dynamic range compression parameters to the first audio signal is less than the gain provided by the dynamic range compression parameters to the second audio signal.

[0127] The first target value is used to determine the low-frequency and mid-to-high-frequency signals in the audio signal played by the first power amplifier. In other words, since it is necessary to balance the reproduction of human voices, music and environmental sound effects, the main power amplifier needs to have appropriate low-frequency gain and increase the mid-to-high frequency gain to make the sound effect more natural and realistic.

[0128] For example, the DRC parameters associated with the main power amplifier provide approximately +3dB to +6dB gain in the low-frequency range (such as 20Hz-200Hz) to maintain the fullness and realism of the low-frequency sound; and provide approximately +6dB to +12dB gain in the mid-high frequency range (such as 200Hz-20kHz) to optimize the clarity of vocals and the expressiveness of musical details.

[0129] In some embodiments, the power amplifier of the display device 200 further includes a second power amplifier, which is used to amplify low-frequency signals with frequencies less than a preset value in the audio signal. That is, the second power amplifier focuses on amplifying and enhancing low-frequency sound effects, and the second power amplifier can also be referred to as a subwoofer amplifier.

[0130] Accordingly, in some embodiments, the dynamic range compression parameter associated with the second power amplifier is used to provide gain to the audio signal of the second power amplifier; the audio signal of the second power amplifier includes a third audio signal with a frequency lower than a second target value, and a fourth audio signal with a frequency lower than the second target value; the gain provided by the dynamic range compression parameter to the third audio signal is greater than the gain provided by the dynamic range compression parameter to the fourth audio signal. The second target value is used to determine the low-frequency and mid-to-high-frequency signals in the audio signal played by the second power amplifier.

[0131] For example, the DRC parameters associated with a subwoofer amplifier provide a gain of approximately +10dB to +15dB in the low-frequency range (such as 20Hz-100Hz) to significantly enhance the bass effect; while the gain in the mid-frequency range (such as 100Hz-1kHz) is relatively reduced, with a gain of approximately 0dB to -3dB, thereby strengthening the sense of rhythm and avoiding thin vocals.

[0132] In some embodiments, the power amplifier of the display device 200 further includes a third power amplifier and a fourth power amplifier. The third power amplifier is responsible for creating a surround sound effect and can also be referred to as a surround sound amplifier; the fourth power amplifier is mainly used to enhance the vertical directionality of the sound effect and can also be referred to as a sky sound amplifier.

[0133] Accordingly, in some embodiments, the third and fourth power amplifiers primarily reduce the mid-frequency gain and increase the high-frequency gain to improve the clarity and brightness of the output sound from the display device 200. For example, the DRC parameters associated with the third and fourth power amplifiers show a relatively reduced gain in the mid-frequency range (e.g., 500Hz-5kHz), decreasing to approximately -3dB to 0dB, to reduce sound components that may cause a muddy sound; while the gain in the high-frequency range (e.g., 5kHz-20kHz) is increased to approximately +3dB to +9dB, thereby improving the clarity and brightness of the sound.

[0134] It should be noted that the above values ​​are merely examples, and the specific values ​​can be adjusted according to the adaptability of the display device 200 and the audio output device 270. This application does not impose any restrictions on this.

[0135] Regarding the above embodiments Figure 9 Steps S901-S904 are shown below:

[0136] After the display device 200 completes the initialization of the power amplifier through the middleware layer, it also automatically generates the installation mode selection instruction, determines the sound effect strategy to be set after the current display device 200 is powered on, and sets the sound effect according to the sound effect strategy.

[0137] In some embodiments, the display device 200 reads a target mode from a database. The target mode can be the system default installation mode or the installation mode set before the display device 200 was last powered off.

[0138] In some embodiments, the display device 200 can parse the installation modes currently supported by the display device 200 according to the configuration file. If the display device 200 supports the first mode, the sound effects can be set by setting the sound effect parameters, DRC parameters, and EQ parameters; if the display device 200 only supports the second mode, the sound effect configuration attributes can be used to determine how the display device 200 sets the sound effects.

[0139] In some embodiments, when the installation mode of the display device 200 includes only the second mode and does not include the first mode, the display device 200 can parse the sound effect configuration attribute after parsing the target mode; if the sound effect configuration attribute is the first attribute, then the step of loading the sound effect file corresponding to the target mode is executed; if the sound effect configuration attribute is the second attribute, then the PEQ parameter corresponding to the target mode is loaded, and the PEQ module of the audio processor is set according to the PEQ parameter, so that the audio output device plays the sound corresponding to the audio signal based on the PEQ parameter.

[0140] The first attribute indicates that the sound effect strategy used by the current display device 200 is to set advanced parameters, digital amplifier EQ and DRC; the second attribute indicates that the sound effect strategy used by the current display device 200 is to set the PEQ parameters at the mechanism end.

[0141] For example, after the display device 200 sets the amplifier's DRC, the sound module retrieves the installation modes supported by the display device from the database. If the display device 200 only supports the first installation mode, it reads the PEQ parameters of various installation methods (desktop or wall-mounted) in the second mode from the database and stores them in memory as mtPeqParams for processing.

[0142] In some embodiments, when the sound effect configuration attribute is the second attribute, the display device 200 loads the PEQ parameters corresponding to the target mode (in this case, wall-mounted mode or seated mode) and stores the PEQ parameters in memory. It then sends a PEQ enable command to the audio processor to enable the PEQ module. Next, it sets the PEQ module according to the PEQ parameters so that the audio output device 270 plays the sound corresponding to the audio signal based on the PEQ parameters.

[0143] For example, such as Figure 10 As shown, when the installation mode of the display device 200 only supports the second mode and the sound effect configuration attribute of the display device 200 is the second attribute, the display device 200 reads the PEQ parameters of the target mode (seat or wall mounted) from the database and stores them in the memory mtPeqParams. The middleware then turns on the PEQ function switch of the chassis (audio processor) through the HAL layer and sets the PEQ parameters corresponding to the seat to the PEQ module of the chassis (audio processor) in the display device 200 for processing and effect.

[0144] S502: Load the sound effect file corresponding to the target mode.

[0145] After the display device 200 resolves the target mode, it needs to execute the parameters corresponding to that target mode, that is, set the sound effect parameters and EQ corresponding to the first mode. At this time, the display device 200 first loads the corresponding sound effect file, which includes the corresponding sound effect parameters.

[0146] like Figure 11 As shown, in some embodiments, when the display device 200 loads the sound effect file corresponding to the target mode, it calls a query interface to obtain the current sound effect type and sound mode (S1101). After obtaining the sound effect type and sound mode returned by the query interface, the display device 200 queries the file path according to the sound effect type, sound mode, and target mode (S1102). Then, it loads the sound effect file according to the queried file path (S1103).

[0147] For example, when the target mode is embedded mode, the middleware of display device 200 will retrieve the currently set advanced sound effect type CurEffect and sound mode eSndMode from the database via the get interface. This information will then be set to the HAL layer via the set interface. The HAL layer will determine whether the installation method passed is embedded, and will load the sound effect parameter file corresponding to the embedded mode for that advanced sound effect.

[0148] For example, if the current display device 200 has a DTSVx audio type, a standard sound mode, and an embedded installation mode, then the HAL layer of the display device 200 will load and parse the DTSVx_Standard_Embed.ini file. The parsed audio parameters will then be set to the corresponding modules for processing and effectiveness.

[0149] For audio parameters of audio files, in some embodiments, the display device 200 can adjust the bass effect using the Dolby audio bass-enhancer-boost parameter or the DTSVX audio --tbhdx-front-bass-lvl parameter; adjust the surround sound effect using the Dolby audio u32SurroundBoost parameter or the DTSVX virtualx-tsx-precond-front and virtualx-tsx-precond-surnd parameters; and adjust the clarity of human voices using the Dolby audio dialog-enhancer-amount parameter or the DTSVX audio virtualx-dialogclarity-level parameter.

[0150] S503: Set the audio processor's sound parameters according to the sound effect file.

[0151] After loading the corresponding sound effect file, the display device 200 can set the audio processor's sound parameters according to the sound effect file, making the sound effect parameters of the sound effect file effective, thereby improving the sound effect output by the display device 200. For example, it can adjust three effects: surround sound, vocals, and bass.

[0152] S504: Read the equalizer parameters corresponding to the target mode.

[0153] When the display device 200 is powered on, it sets the DRC (Digital Control Center) and, upon responding to the target mode selection command, sets the aforementioned sound effect parameters. Then, it reads the equalizer parameters (EQ) corresponding to the target mode. In this way, DRC, EQ, and advanced sound effects can be adjusted simultaneously.

[0154] like Figure 12As shown, in some embodiments, when the display device 200 reads the equalizer parameters corresponding to the target mode, it reads the serial number of the power amplifier (S1201), such as the serial number of a digital power amplifier. Then, it calls the equalizer parameter loading interface of the power amplifier (S1202) and passes the target mode and the serial number to the equalizer parameter loading interface so that the equalizer parameter loading interface loads the equalizer parameters in the configuration file (S1303).

[0155] The configuration file can include equalizer parameters corresponding to all installation modes. The equalizer parameter loading interface of the display device 200 can read the EQ parameters corresponding to the target mode and the current power amplifier according to the passed sequence number and installation mode. Then, the display device 200 stores the equalizer parameters loaded by the equalizer parameter loading interface into memory (S1204) for subsequent processing.

[0156] For example, the display device 200 has four power amplifiers, meaning that the audio output device 270 of the display device 200 includes the aforementioned first power amplifier, second power amplifier, third power amplifier, and fourth power amplifier (i.e., main power amplifier, subwoofer power amplifier, surround sound power amplifier, and ambient sound power amplifier). The corresponding power amplifier serial numbers, power amplifier parameter file names, and power amplifier EQ parameter file names for the display device 200 are shown in the table below:

[0157]

[0158]

[0159] The middleware interface for setting the installation mode first reads the number of power amplifiers, and then calls the load interface (equalizer parameter loading interface) in sequence, passing the current installation mode and power amplifier serial number to the load interface. In the load interface, the configuration file with a fixed path and fixed name is loaded and parsed. Based on the embedded installation mode, the EQ parameters of the power amplifiers whose installation mode is marked as embedded in the file are read from the configuration file into the mu8ArrSetData in memory.

[0160] S505: Write the equalizer parameters into the power amplifier so that the audio output device outputs the sound corresponding to the audio signal based on the target mode.

[0161] After the display device 200 reads the corresponding EQ parameters, it can write the EQ parameters into the power amplifier. By setting the sound effect parameters of the audio processor and the aforementioned DRC and EQ parameters of the power amplifier, the sound loss of the audio signal and the attenuation of each frequency band can be compensated, thereby improving the sound quality of the output sound of the display device 200.

[0162] like Figure 13As shown, in some embodiments, when the display device 200 writes equalizer parameters to the power amplifier, it writes the equalizer parameters in memory to the power amplifier register via a serial communication protocol according to the power amplifier's serial number (S1301). Then, it reads the register's specification parameters (S1302) and updates the register's parameters according to the specification parameters (S1303).

[0163] In some embodiments, the display device 200 may perform steps S1301 and S1302 in a serial or parallel manner. This application does not impose any limitations on this.

[0164] For example, the display device 200 loads the configuration file through the load interface. After the load interface returns a success, the interface for setting the installation mode writes the power amplifier EQ parameters stored in memory into the corresponding power amplifier registers in sequence according to the power amplifier serial number via the I2C communication protocol.

[0165] Similarly, in some embodiments, equalizer parameters are associated with power amplifiers, and different power amplifiers can be associated with different equalizer parameters.

[0166] Based on the above embodiments, after the display device 200 is powered on or receives a user-initiated instruction to switch the installation mode, it can set the sound effects of the display device 200 according to the above steps S501-S505. When the installation mode supported by the display device 200 includes the first mode, EQ and sound effect parameters are set, in conjunction with the DRC parameters set when the display device 200 is powered on, to compensate for sound loss and attenuation of each frequency band, and to improve the sound quality of the output sound of the display device 200; when the installation mode supported by the display device 200 only includes the second mode and the sound effect configuration attribute is the second attribute, the PEQ at the chassis end is set to compensate for sound loss.

[0167] In other words, the explanation will take the first mode as the embedded mode and the second mode as including wall-mounted and tabletop modes. For the display device 200 that only supports tabletop and wall-mounted installation methods, the sound effects can be set either through the PEQ mechanism or by using the amplifier and sound effect parameters provided in steps S501-S505 above. For devices that support embedded, tabletop, and wall-mounted installation methods, the sound effects are set using the amplifier and sound effect parameters provided in steps S501-S505 above.

[0168] For example, such as Figure 14 As shown, the user is based on Figure 4The menu interface shown allows you to set the installation mode to either Mode 1 or Mode 2. Mode 1 can include embedded mode, and Mode 2 can include tabletop mode and wall-mounted mode. Since the display device 200 supports both Mode 1 and Mode 2, the sound effects of the display device 200 need to be set by configuring audio parameters, amplifier EQ, and DRC. When the user sets the installation mode to embedded mode in the menu interface, the display device 200 can first configure advanced audio effects according to the embedded mode (S1401), and then configure the amplifier EQ (S1402) to complete the audio effect settings of the display device 200, thereby improving the sound quality of the output sound from the display device 200.

[0169] Based on the display device 200 described above, some embodiments of this application also provide a sound effect setting method, which can be applied to the display device 200 provided in the above embodiments, and can also be applied to other audio devices. For example... Figure 5 As shown, the sound effect setting method includes the following steps:

[0170] S501: In response to an installation mode selection command, parse the target mode indicated by the selection command, which is generated based on the boot navigation interface or menu interface;

[0171] S502: Load the sound effect file corresponding to the target mode, the sound effect file including sound effect parameters;

[0172] S503: Set the audio processor's sound parameters according to the sound effect file;

[0173] S504: Read the equalizer parameters corresponding to the target mode;

[0174] S505: The equalizer parameters are written into the power amplifier so that the audio output device outputs the sound corresponding to the audio signal based on the target mode; the power amplifier is set with corresponding dynamic range compression parameters.

[0175] As can be seen from the above technical solutions, the display device and sound effect setting method provided in some embodiments of this application can respond to the installation mode selection command and parse the target mode indicated by the selection command. The selection command is generated based on the boot navigation interface or menu interface. The sound effect file corresponding to the target mode is loaded, and then the sound parameters of the audio processor are set according to the sound effect file, and the equalizer parameters corresponding to the target mode are read. The sound effect file includes sound effect parameters. The equalizer parameters are then written to the power amplifier so that the audio output device outputs the sound corresponding to the audio signal based on the target mode. The power amplifier is set with corresponding dynamic range compression parameters. This method, based on the installation mode of the display device 200, switches between different methods to set sound effects, which can reduce the sound loss caused by different installation modes to the display device 200, thereby improving the sound quality of the output sound of the display device 200.

[0176] The same or similar parts among the various embodiments in this specification can be referred to mutually, and will not be repeated here.

[0177] Those skilled in the art will clearly understand that the techniques in the embodiments of the present invention can be implemented using software plus necessary general-purpose hardware platforms. Based on this understanding, the technical solutions in the embodiments of the present invention, or the parts that contribute to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or certain parts of the embodiments of the present invention.

[0178] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0179] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A display device, characterized in that, include: The display is configured to display a user interface, the user interface including a power-on navigation interface and a menu interface for selecting an installation mode, the installation mode including a first mode and / or a second mode; An audio output device is configured to output sound corresponding to an audio signal. The audio output device includes a power amplifier and an audio processor. The power amplifier is set with corresponding dynamic range compression parameters. The controller, coupled to the display and the audio output device, is configured to: In response to an installation mode selection command, the target mode indicated by the selection command is parsed, the selection command being generated based on the boot navigation interface or the menu interface; Load the sound effect file corresponding to the target mode, the sound effect file including sound effect parameters; Set the audio processor's sound parameters according to the sound effect file; Read the equalizer parameters corresponding to the target mode; The equalizer parameters are written into the power amplifier so that the audio output device outputs the sound corresponding to the audio signal based on the target mode.

2. The display device according to claim 1, characterized in that, The controller loads the sound effect file corresponding to the target mode, specifically configured as follows: Call the query interface to obtain the current sound effect type and sound mode; Query the file path based on the sound effect type, the sound mode, and the target mode; Load the sound effect file according to the specified file path.

3. The display device according to claim 1, characterized in that, The controller reads the equalizer parameters corresponding to the target mode, specifically configured as follows: Read the serial number of the power amplifier; Call the equalizer parameter loading interface of the power amplifier; The target mode and the sequence number are passed to the equalizer parameter loading interface so that the equalizer parameter loading interface loads the equalizer parameters in the configuration file, the configuration file including the equalizer parameters corresponding to the installation mode; The equalizer parameters loaded by the equalizer parameter loading interface are stored in memory.

4. The display device according to claim 3, characterized in that, The controller is configured to write the equalizer parameters into the power amplifier, specifically as follows: According to the serial number of the power amplifier, the equalizer parameters in the memory are written into the register of the power amplifier via a serial communication protocol; Read the specifications of the register; Update the parameters of the register according to the specified parameters.

5. The display device according to claim 1, characterized in that, When the selection instruction is generated based on the boot navigation interface, the controller is also configured to: In response to a power-on command, control the display to show the power-on navigation interface; The information of the first power amplifier is analyzed, which includes the type, quantity, address, and number of connected buses of the power amplifier. Query the corresponding device driver based on the first power amplifier information; Call the driver function of the device driver; The first power amplifier information is passed to the drive function to initialize the power amplifier.

6. The display device according to claim 5, characterized in that, After the controller performs the step of passing the power amplifier information to the drive function, it is further configured to: The second power amplifier information of the display device is parsed. The second power amplifier information includes the type, quantity, address, bus number, and address of the dynamic range compression parameter of the power amplifier. Store the dynamic range compression parameters in memory; According to the second power amplifier information, the dynamic range compression parameters in the memory are written into the register of the power amplifier. The dynamic range compression parameters are associated with the power amplifier, and different power amplifiers are associated with different dynamic range compression parameters. The selection command is generated based on the boot navigation interface.

7. The display device according to claim 1, characterized in that, The power amplifier includes at least a first power amplifier, which is the power amplifier with the maximum power output in the audio output device; The dynamic range compression parameter associated with the first power amplifier is used to provide gain to the audio signal of the first power amplifier; the audio signal of the first power amplifier includes a first audio signal with a frequency greater than or equal to a first target value, and a second audio signal with a frequency less than the first target value; the gain provided by the dynamic range compression parameter to the first audio signal is less than the gain provided by the dynamic range compression parameter to the second audio signal.

8. The display device according to claim 7, characterized in that, The power amplifier also includes a second power amplifier, which is used to amplify and enhance low-frequency signals with frequencies less than a preset value in the audio signal. The dynamic range compression parameter associated with the second power amplifier is used to provide gain to the audio signal of the second power amplifier; the audio signal of the second power amplifier includes a third audio signal with a frequency less than a second target value and a fourth audio signal with a frequency less than the second target value; the gain provided by the dynamic range compression parameter to the third audio signal is greater than the gain provided by the dynamic range compression parameter to the fourth audio signal.

9. The display device according to any one of claims 1-8, characterized in that, When the installation mode of the display device includes only the second mode, after the controller performs the step of parsing the target mode indicated by the selection instruction, it is further configured to: Analyze sound effect configuration properties; If the sound effect configuration attribute is the first attribute, then the step of loading the sound effect file corresponding to the target mode is executed; If the sound effect configuration attribute is the second attribute, then the PEQ parameters corresponding to the target mode are loaded, and the PEQ module of the audio processor is set according to the PEQ parameters, so that the audio output device plays the sound corresponding to the audio signal based on the PEQ parameters.

10. A method for setting sound effects, characterized in that, include: In response to an installation mode selection command, the target mode indicated by the selection command is parsed, the selection command being generated based on the boot navigation interface or menu interface; Load the sound effect file corresponding to the target mode, the sound effect file including sound effect parameters; Set the audio processor's sound parameters according to the sound effect file; Read the equalizer parameters corresponding to the target mode; The equalizer parameters are written into the power amplifier so that the audio output device outputs the sound corresponding to the audio signal based on the target mode; the power amplifier is set with corresponding dynamic range compression parameters.

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