Display device, sound effect adjusting method and medium

Abstract

The present disclosure relates to a display device, an audio effect adjusting method and a medium, and is applied to the technical field of display devices. The display device comprises a controller receiving a plurality of sweep signals of different preset frequencies sent by an external recording module; determining a plurality of first sound pressure values of left and right mixed sound channels, a plurality of second sound pressure values of a left sound channel and a plurality of third sound pressure values of a right sound channel based on the sweep signals of different preset frequencies; determining an initial sound pressure value according to the plurality of first sound pressure values, the plurality of second sound pressure values and the plurality of third sound pressure values; when the initial sound pressure value is determined to be not equal to a target reference sound pressure value set in advance, making the initial sound pressure value equal to the target reference sound pressure value to obtain a target sound pressure value, wherein the target reference sound pressure value corresponds to each sweep signal of different preset frequencies one by one, and the target sound pressure value is used for processing audio output by the display device. In the above process, high-quality sound quality can be provided for users, and the user experience is improved.

Description

Technical Field

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

[0002] Currently, when users play audio on display devices such as smart TVs, the spatial environment of the display device, such as in a home or office, is very complex. Therefore, when the audio data is played by the speaker of the display device, it may hit the surrounding environment and be reflected, which will cause sound wave interference to the audio received by the user, affecting the sound effect of the audio received by the user and reducing the user experience.

[0003] In existing technologies, sound field correction functions are used to optimize the sound effects of display devices in order to reduce the adverse effects of the spatial environment in which the display device is located on the user's audio reception. However, the existing technologies have the problem of poor sound effect optimization. Summary of the Invention

[0004] To address, or at least partially address, the aforementioned technical problems, this disclosure provides a display device, a sound effect adjustment method, and a medium. Based on sweep signals of different preset frequencies sent by an external recording module, multiple sound pressure levels (SPL) values ​​for different channels are obtained. Based on these SPL values, the initial SPL value at the current location of the external recording module can be determined. The initial SPL value is compared with a preset target reference SPL value. Since the target reference SPL value is an optimal SPL adjustment value obtained in a preset professional audio laboratory, when the initial SPL value and the target reference SPL value are inconsistent, the initial SPL value is optimized using the target reference SPL value. This improves the audio effect played by the display device, avoids the problem of poor sound effect optimization in existing technologies, provides users with high-quality sound, and enhances the user experience.

[0005] In a first aspect, this disclosure provides a display device, the display device comprising: a controller configured to:

[0006] Receives multiple frequency sweep signals of different preset frequencies sent by an external recording module;

[0007] Based on the frequency sweep signals of various preset frequencies, multiple first sound pressure levels for the left and right mixed channels, multiple second sound pressure levels for the left channel, and multiple third sound pressure levels for the right channel are determined.

[0008] An initial sound pressure value is determined based on a plurality of first sound pressure values, a plurality of second sound pressure values, and a plurality of third sound pressure values;

[0009] When it is determined that the initial sound pressure value is not equal to the preset target reference sound pressure value, the initial sound pressure value is set to equal the target reference sound pressure value to obtain the target sound pressure value. The target reference sound pressure value corresponds one-to-one with each of the frequency sweep signals of the different preset frequencies. The target sound pressure value is used to process the audio output by the display device.

[0010] As an optional implementation of this disclosure, the controller is specifically configured to...

[0011] For each frequency sweep signal with a different preset frequency, the frequency sweep signal is discretized to obtain the frequency sweep digital signal corresponding to the frequency sweep signal;

[0012] Based on the frequency sweep digital signal, a plurality of first sound pressure values, a plurality of second sound pressure values, and a plurality of third sound pressure values ​​are determined.

[0013] As an optional implementation of this disclosure, the controller is specifically configured as follows:

[0014] The first average sound pressure value of the left and right mixed channels is obtained by averaging multiple first sound pressure values.

[0015] The average sound pressure value of the left channel is obtained by averaging multiple second sound pressure values.

[0016] The average sound pressure level of the right channel is obtained by averaging the multiple third sound pressure levels.

[0017] The initial sound pressure value is obtained by averaging the first average sound pressure value, the second average sound pressure value, and the third average sound pressure value.

[0018] As an optional implementation of this disclosure, the controller is further configured to:

[0019] The summation of multiple second sound pressure values ​​with a preset sound pressure value is performed to obtain a first summation result corresponding to each of the multiple second sound pressure values. The average of the multiple first summation results is then calculated to obtain a second average sound pressure value for the left channel.

[0020] The third sound pressure level (SPL) values ​​are summed with the preset SPL value to obtain the second summation results corresponding to the third SPL values. The average of the second summation results is then calculated to obtain the third average SPL value of the right channel.

[0021] As an optional implementation of this disclosure, the display device stores a plurality of preset reference sound pressure values ​​and the correspondence between the preset reference sound pressure values ​​and sweep signals of different preset frequencies;

[0022] The controller is also configured to:

[0023] Based on the correspondence and the various preset frequencies, the target reference sound pressure value corresponding to the sweep signal of each different preset frequency is determined among the multiple preset reference sound pressure values.

[0024] As an optional implementation of this disclosure, the controller is further configured to:

[0025] For the second average sound pressure value of the left channel and the third average sound pressure value of the right channel, determine whether the second average sound pressure value is greater than the third average sound pressure value;

[0026] When it is determined that the second average sound pressure value is greater than the third average sound pressure value, the third average sound pressure value is set to be equal to the second average sound pressure value.

[0027] As an optional implementation of this disclosure, the controller is further configured to:

[0028] When it is determined that the second average sound pressure value is not greater than the third average sound pressure value, and the second average sound pressure value is not equal to the third average sound pressure value, the second average sound pressure value is set to be equal to the third average sound pressure value.

[0029] Secondly, this disclosure provides a sound effect adjustment method, including:

[0030] Receives multiple frequency sweep signals of different preset frequencies sent by an external recording module;

[0031] Based on the frequency sweep signals of various preset frequencies, multiple first sound pressure levels for the left and right mixed channels, multiple second sound pressure levels for the left channel, and multiple third sound pressure levels for the right channel are determined.

[0032] An initial sound pressure value is determined based on a plurality of first sound pressure values, a plurality of second sound pressure values, and a plurality of third sound pressure values;

[0033] When it is determined that the initial sound pressure value is not equal to the preset target reference sound pressure value, the initial sound pressure value is set to equal the target reference sound pressure value to obtain the target sound pressure value. The target reference sound pressure value corresponds one-to-one with each of the frequency sweep signals of the different preset frequencies. The target sound pressure value is used to process the audio output by the display device.

[0034] As an optional implementation of this disclosure, determining multiple first sound pressure levels for the left and right mixed channels, multiple second sound pressure levels for the left channel, and multiple third sound pressure levels for the right channel based on the sweep signals of various preset frequencies includes:

[0035] For each frequency sweep signal with a different preset frequency, the frequency sweep signal is discretized to obtain the frequency sweep digital signal corresponding to the frequency sweep signal;

[0036] Based on the frequency sweep digital signal, a plurality of first sound pressure values, a plurality of second sound pressure values, and a plurality of third sound pressure values ​​are determined.

[0037] Thirdly, this disclosure provides a computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the sound effect adjustment method as described in the second aspect.

[0038] The technical solution provided in this disclosure has the following advantages compared with the prior art:

[0039] The controller of the display device receives multiple sweep signals of different preset frequencies sent by an external recording module; based on the sweep signals of different preset frequencies, it determines multiple first sound pressure levels for the left and right mixed channels, multiple second sound pressure levels for the left channel, and multiple third sound pressure levels for the right channel; based on the multiple first sound pressure levels, multiple second sound pressure levels, and multiple third sound pressure levels, it determines an initial sound pressure level; when the initial sound pressure level is not equal to a preset target reference sound pressure level, it sets the initial sound pressure level to the target reference sound pressure level to obtain the target sound pressure level, wherein the target reference sound pressure level corresponds one-to-one with each of the sweep signals of different preset frequencies, and the target sound pressure level is used to process the audio output by the display device. In the above process, multiple sound pressure levels (SPL) values ​​for different channels are obtained based on the frequency sweep signals of different preset frequencies sent by the external recording module. Based on these multiple SPL values, the initial SPL value of the current location of the external recording module can be determined. The initial SPL value is then compared with a preset target reference SPL value. Since the target reference SPL value is an optimal SPL adjustment value obtained from a preset professional audio laboratory, when the initial SPL value and the target reference SPL value are inconsistent, the initial SPL value can be optimized and adjusted using the target reference SPL value. This improves the audio effect played by the display device, avoids the problem of poor sound optimization in existing technologies, provides users with high-quality sound, and enhances the user experience. Attached Figure Description

[0040] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0041] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram illustrating an application scenario between a display device, a control device, a server, and a terminal device, provided in an embodiment of the present disclosure.

[0043] Figure 2 This is a hardware configuration block diagram of a display device 200 according to one or more embodiments of the present disclosure;

[0044] Figure 3 This is a schematic diagram of the software configuration in a display device 200 according to one or more embodiments of the present disclosure;

[0045] Figure 4 This is a schematic diagram showing the icon control interface of an application in a display device 200 according to one or more embodiments of the present disclosure;

[0046] Figure 5 This is a framework diagram of a sound effect adjustment system according to one or more embodiments of the present disclosure;

[0047] Figure 6 A schematic flowchart illustrating a sound effect adjustment method provided in an embodiment of this disclosure;

[0048] Figure 7 A schematic diagram of a frequency sweep signal provided in an embodiment of this disclosure;

[0049] Figure 8 A flowchart illustrating another sound effect adjustment method provided in this embodiment of the disclosure;

[0050] Figure 9 A schematic flowchart illustrating another sound effect adjustment method provided in this embodiment of the present disclosure;

[0051] Figure 10 A flowchart illustrating yet another sound effect adjustment method provided in this embodiment of the present disclosure;

[0052] Figure 11 A flowchart illustrating yet another sound effect adjustment method provided in this embodiment of the present disclosure;

[0053] Figure 12 This is a flowchart illustrating another sound effect adjustment method provided in an embodiment of the present disclosure. Detailed Implementation

[0054] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0055] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0056] The terms "first" and "second," etc., used in this disclosure are used to distinguish different objects, not to describe a specific order of objects. For example, "first processing result" and "second processing result," etc., are used to distinguish different processing results, not to describe a specific order of processing results.

[0057] The display device provided in this application can have various implementation forms, such as a television, a smart television, a laser projection device, a monitor, an electronic bulletin board, an electronic table, etc. This disclosure does not limit the specific type of display device.

[0058] For example, refer to Figure 1 As shown, Figure 1 This illustration depicts an application scenario involving a display device, control device, server, and terminal device, as provided in an embodiment of this disclosure. Currently, when a user plays audio using a display device such as a smart TV 200, the spatial environment of the display device, such as a home or office, is often complex, and the user's position while listening to the audio is constantly changing. When audio data is played through the speaker of the display device, such as the smart TV 200, it may impact the surrounding environment, such as walls or ceiling panels, and reflect off the audio, causing sound wave interference and resulting in an unbalanced and chaotic listening experience, severely affecting the sound quality of the received audio. Therefore, existing technologies utilize sound field correction functions to optimize the sound effect of the display device and reduce the adverse effects of the spatial environment on the user's audio reception.

[0059] However, current technology cannot optimize the sound effects of high-frequency signals, resulting in poor sound quality and users not receiving satisfactory audio. Furthermore, because users' positions when listening to audio on display devices such as smart TVs are constantly changing and not always centered, there is a common problem of unbalanced volume between the left and right channels.

[0060] To address the aforementioned issues, this disclosure proposes a sound effect adjustment method. This method involves receiving multiple sweep signals of different preset frequencies from an external recording module; determining multiple first sound pressure levels (SPL) values ​​for the left and right mixed channels, multiple second SPL values ​​for the left channel, and multiple third SPL values ​​for the right channel based on the sweep signals of each preset frequency; determining an initial SPL value based on the multiple first, second, and third SPL values; and setting the initial SPL value equal to the target reference SPL value when the initial SPL value is not equal to a preset target reference SPL value, thereby obtaining a target SPL value. The target reference SPL value corresponds one-to-one with each of the different preset frequency sweep signals, and the target SPL value is used to process the audio output from the display device. In the above process, multiple sound pressure levels (SPL) values ​​for different channels are obtained based on the frequency sweep signals of different preset frequencies sent by the external recording module. Based on these multiple SPL values, the initial SPL value of the current location of the external recording module can be determined. The initial SPL value is then compared with a preset target reference SPL value. Since the target reference SPL value is an optimal SPL adjustment value obtained from a preset professional audio laboratory, when the initial SPL value and the target reference SPL value are inconsistent, the initial SPL value can be optimized and adjusted using the target reference SPL value. This improves the audio effect played by the display device, avoids the problem of poor sound optimization in existing technologies, provides users with high-quality sound, and enhances the user experience.

[0061] In some embodiments, the control device 100 may be a remote control. Communication between the remote control and the display device 200 may include infrared protocol communication, Bluetooth protocol communication, wireless or other wired methods, etc., through which the display device 200 can be controlled. Users can input user commands through buttons on the remote control, voice input, and control panel input to control the display device 200. For example, users can input corresponding control commands through volume up / down buttons, menu buttons, power on / off buttons, etc., on the remote control to achieve the function of controlling the display device 200.

[0062] In some embodiments, tablet computers, computers, laptops, and other terminal devices may also be used to control the display device 200.

[0063] In some embodiments, the display device 200 may receive instructions not through the terminal device or control device described above, but through touch or gestures.

[0064] In some embodiments, the display device 200 can also be controlled in ways other than control devices and terminal devices. For example, it can be controlled by receiving user voice commands directly through a module configured inside the display device 200 for acquiring voice commands, or it can be controlled by receiving user voice commands through a voice control device set outside the display device 200.

[0065] In some embodiments, the terminal device may install software applications with the display device 200 to achieve connection and communication via network communication protocols, enabling one-to-one control operations and data communication. The display device 200 can also communicate with the server via various communication methods, allowing it to connect via a local area network (LAN), wireless local area network (WLAN), and other networks. The server can be a cluster or multiple clusters, and may include one or more types of servers. The server can provide various content and interactive features to the display device 200. The display device 200 can be a liquid crystal display, an OLED display, or a projection display device, etc. In addition to providing broadcast television reception functions, the display device 200 can also be equipped with intelligent network television functions that provide computer support.

[0066] Figure 2 This is a hardware configuration block diagram of a display device 200 according to one or more embodiments of the present disclosure. Figure 2 The display device 200 shown includes at least one of a tuner / demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, and a user interface (i.e., a user input interface) 280. The controller 250 includes a central processing unit, a video processor, an audio processor, a graphics processor, RAM, ROM, and a first to nth interface for input / output. The display 260 may be at least one of a liquid crystal display, an OLED display, a touch display, and a projection display, and may also be a projection device and a projection screen. The tuner / demodulator 210 receives broadcast television signals via wired or wireless means, and demodulates audio and video signals, such as EPG data signals, from multiple wireless or wired broadcast television signals. The communicator 220 is a component used to communicate with external devices or servers according to various communication protocol types. For example, the communicator may include at least one of a Wi-Fi module, a Bluetooth module, a wired Ethernet module, other network communication protocol chips or near-field communication protocol chips, and an infrared receiver. Display device 200 can establish the transmission and reception of control signals and data signals with external control device 100 or server 400 via communicator 220. Detector 230 is used to collect signals from the external environment or signals interacting with the outside world. Controller 250 and tuner 210 can be located in different separate devices; that is, tuner 210 can also be located in an external device of the main device containing controller 250, such as an external set-top box. User interface 280 can be used to receive control signals from control devices (such as infrared remote controls).

[0067] 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 controls the overall operation of the display device 200. The user can input user commands through a graphical user interface (GUI) displayed on the monitor 260, and the user input interface receives the user input commands through the GUI. Alternatively, the user can input user commands by inputting specific sounds or gestures, and the user input interface receives the user input commands by recognizing the sounds or gestures through sensors.

[0068] In some embodiments, a "user interface" is the medium through which an application or operating system interacts and exchanges information with a user, enabling the conversion between the internal form of information and a form acceptable to the user. A common form of user interface is the graphical user interface (GUI), which refers to a user interface related to computer operation displayed graphically. It can be interface elements such as icons, windows, and controls displayed on the screen of an electronic device. Controls can include at least one of the visual interface elements such as icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, and widgets.

[0069] Figure 3 This is a schematic diagram of the software configuration in a display device 200 according to one or more embodiments of the present disclosure, such as... Figure 3 As shown, 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 Android runtime and system library layer (referred to as the "System Runtime Library Layer"), and the kernel layer.

[0070] In some embodiments, at least one application runs in the application layer. These applications may be Windows programs, system settings programs, or clock programs that come with the operating system; they may also be applications developed by third-party developers. In specific implementations, the applications in the application layer include, but are not limited to, the examples above.

[0071] In some embodiments, the system runtime library layer provides support for the upper layer, namely the framework layer. When the framework layer is used, the Android operating system runs the C / C++ libraries contained in the system runtime library layer to implement the functions that the framework layer needs to perform.

[0072] In some embodiments, the kernel layer is a layer between hardware and software, and includes at least one of the following drivers: 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.

[0073] Figure 4 This is a schematic diagram showing the icon control interface of an application in a display device 200 according to one or more embodiments of the present disclosure, such as... Figure 4 As shown, the application layer contains at least one application whose corresponding icon control can be displayed on the screen, such as: live TV application icon control, video-on-demand application icon control, media center application icon control, application center icon control, game application icon control, etc. Live TV applications can provide live television from different signal sources. Video-on-demand applications can provide video from different storage sources. Unlike live TV applications, video-on-demand provides video display from certain storage sources. Media center applications can provide applications for playing various multimedia content. The application center can provide storage for various applications.

[0074] In some embodiments, the display device described above is a terminal device with display functionality, such as a television, mobile phone, computer, or educational device. In this display device:

[0075] The controller 250 is configured to receive multiple frequency sweep signals of different preset frequencies sent by an external recording module;

[0076] Based on the frequency sweep signals of various preset frequencies, multiple first sound pressure levels for the left and right mixed channels, multiple second sound pressure levels for the left channel, and multiple third sound pressure levels for the right channel are determined.

[0077] An initial sound pressure value is determined based on a plurality of first sound pressure values, a plurality of second sound pressure values, and a plurality of third sound pressure values;

[0078] When it is determined that the initial sound pressure value is not equal to the preset target reference sound pressure value, the initial sound pressure value is set to equal the target reference sound pressure value to obtain the target sound pressure value. The target reference sound pressure value corresponds one-to-one with each of the frequency sweep signals of the different preset frequencies. The target sound pressure value is used to process the audio output by the display device.

[0079] In some embodiments, the controller 250 is specifically configured to

[0080] For each frequency sweep signal with a different preset frequency, the frequency sweep signal is discretized to obtain the frequency sweep digital signal corresponding to the frequency sweep signal;

[0081] Based on the frequency sweep digital signal, a plurality of first sound pressure values, a plurality of second sound pressure values, and a plurality of third sound pressure values ​​are determined.

[0082] In some embodiments, the controller 250 is specifically configured to:

[0083] The first average sound pressure value of the left and right mixed channels is obtained by averaging multiple first sound pressure values.

[0084] The average sound pressure value of the left channel is obtained by averaging multiple second sound pressure values.

[0085] The average sound pressure level of the right channel is obtained by averaging the multiple third sound pressure levels.

[0086] The initial sound pressure value is obtained by averaging the first average sound pressure value, the second average sound pressure value, and the third average sound pressure value.

[0087] In some embodiments, the controller 250 is further configured to:

[0088] The summation of multiple second sound pressure values ​​with a preset sound pressure value is performed to obtain a first summation result corresponding to each of the multiple second sound pressure values. The average of the multiple first summation results is then calculated to obtain a second average sound pressure value for the left channel.

[0089] The third sound pressure level (SPL) values ​​are summed with the preset SPL values ​​to obtain the second summation results corresponding to the third SPL values. The average of the second summation results is then calculated to obtain the third average SPL value of the right channel.

[0090] In some embodiments, the controller 250, on the display device, stores a plurality of preset reference sound pressure values ​​and the correspondence between the preset reference sound pressure values ​​and sweep signals of different preset frequencies;

[0091] The controller is also configured to:

[0092] Based on the correspondence and the various preset frequencies, the target reference sound pressure value corresponding to the sweep signal of each different preset frequency is determined among the multiple preset reference sound pressure values.

[0093] In some embodiments, the controller 250 is further configured to:

[0094] For the second average sound pressure value of the left channel and the third average sound pressure value of the right channel, determine whether the second average sound pressure value is greater than the third average sound pressure value;

[0095] When it is determined that the second average sound pressure value is greater than the third average sound pressure value, the third average sound pressure value is set to be equal to the second average sound pressure value.

[0096] In some embodiments, the controller 250 is further configured to:

[0097] When it is determined that the second average sound pressure value is not greater than the third average sound pressure value, and the second average sound pressure value is not equal to the third average sound pressure value, the second average sound pressure value is set to be equal to the third average sound pressure value.

[0098] In summary, this disclosure, by performing the above-described sound effect adjustment method on a display device, receives multiple sweep signals of different preset frequencies sent by an external recording module through the controller of the display device; based on the sweep signals of different preset frequencies, determines multiple first sound pressure levels for the left and right mixed channels, multiple second sound pressure levels for the left channel, and multiple third sound pressure levels for the right channel; determines an initial sound pressure level based on the multiple first sound pressure levels, multiple second sound pressure levels, and multiple third sound pressure levels; when the initial sound pressure level is not equal to a preset target reference sound pressure level, sets the initial sound pressure level equal to the target reference sound pressure level to obtain the target sound pressure level, wherein the target reference sound pressure level corresponds one-to-one with each of the sweep signals of different preset frequencies, and the target sound pressure level is used to process the audio output by the display device. In the above process, multiple sound pressure levels (SPL) values ​​for different channels are obtained based on the frequency sweep signals of different preset frequencies sent by the external recording module. Based on these multiple SPL values, the initial SPL value of the current location of the external recording module can be determined. The initial SPL value is then compared with a preset target reference SPL value. Since the target reference SPL value is an optimal SPL adjustment value obtained from a preset professional audio laboratory, when the initial SPL value and the target reference SPL value are inconsistent, the initial SPL value can be optimized and adjusted using the target reference SPL value. This improves the audio effect played by the display device, avoids the problem of poor sound optimization in existing technologies, provides users with high-quality sound, and enhances the user experience.

[0099] Figure 5 A framework diagram of a sound effect adjustment system according to one or more embodiments of this disclosure is provided, such as Figure 5As shown, the receiving module 501 is used to receive multiple sweep signals of different preset frequencies sent by the external recording module; the sound pressure value determination module 502 is used to determine multiple first sound pressure values ​​of the left and right mixed channels, multiple second sound pressure values ​​of the left channel, and multiple third sound pressure values ​​of the right channel based on the sweep signals of each different preset frequency; the initial sound pressure value determination module 503 is used to determine an initial sound pressure value based on the multiple first sound pressure values, multiple second sound pressure values, and multiple third sound pressure values; the adjustment module 504 is used to set the initial sound pressure value to the target reference sound pressure value when it is determined that the initial sound pressure value is not equal to the preset target reference sound pressure value, thereby obtaining a target sound pressure value, wherein the target reference sound pressure value corresponds one-to-one with each of the sweep signals of each different preset frequency, and the target sound pressure value is used to process the audio output by the display device. Based on the frequency sweep signals of different preset frequencies sent by the external recording module, multiple sound pressure levels (SPL) values ​​for different channels are obtained. Based on these SPL values, the initial SPL value at the current location of the external recording module can be determined. The initial SPL value is then compared with a preset target reference SPL value. Since the target reference SPL value is an optimal SPL adjustment value obtained in a preset professional audio laboratory, when the initial SPL value and the target reference SPL value are inconsistent, the initial SPL value can be optimized using the target reference SPL value. This improves the audio effect played by the display device, avoids the problem of poor sound optimization in existing technologies, provides users with high-quality sound, and enhances the user experience.

[0100] To illustrate this solution in more detail, the following will use examples to illustrate it. Figure 6 To explain, it is understandable that Figure 6 The steps involved may include more or fewer steps in actual implementation, and the order of these steps may also be different, as long as the sound effect adjustment method provided in the embodiments of this disclosure can be achieved. The embodiments of this disclosure do not limit the steps.

[0101] Figure 6 This is a schematic flowchart illustrating a sound effect adjustment method provided in an embodiment of this disclosure. Figure 6 As shown, this sound effect adjustment method specifically includes the following steps:

[0102] S61 receives multiple frequency sweep signals of different preset frequencies sent by an external recording module.

[0103] The external recording module records the initial sweep signal played by the display device and sends the recorded sweep signal to the display device's module. This allows the display device, such as a smart TV, to obtain spatial environment information based on the received sweep signal. This spatial environment information may include room information such as furniture placement. The sweep signal includes signals corresponding to the left and right mixed channels, the left channel, and the right channel. The external recording module may be, for example, a Bluetooth remote control or a microphone. The recording location of the external recording module can be the current location of the user when using the display device, but it is not limited to this. This disclosure does not impose specific limitations, and those skilled in the art can set it according to the actual situation.

[0104] It should be noted that the initial sweep signal played by the display device corresponds to different playback frequencies, such as 500Hz, 1500Hz, 2400Hz, etc. Based on this, the sweep signal recorded by the external recording module and sent to the display device has multiple different preset frequencies. The initial sweep signal can be, for example, an audio clip, but is not limited thereto. This disclosure does not impose specific limitations, and those skilled in the art can set it according to the actual situation.

[0105] Specifically, the external recording module records and receives multiple initial sweep signals of different playback frequencies played by the display device, and sends them to the display device. The controller of the display device receives multiple sweep signals of different preset frequencies sent by the external recording module.

[0106] Optionally, based on the above embodiments, in some embodiments of this disclosure, an external recording module can record the initial sweep signal played by the display device within a preset duration. During the recording process, the preset duration is divided into a first preset duration, a second preset duration, and a third preset duration of equal duration. The sweep signal corresponding to the left and right mixed channels is recorded within the first preset duration, the sweep signal corresponding to the left channel is recorded within the second preset duration, and the sweep signal corresponding to the right channel is recorded within the third preset duration. Correspondingly, as... Figure 7 As shown, the controller of the display device receives frequency sweep signals of various preset frequencies, including the left and right mixed channels 710, the left channel 720, and the right channel 730.

[0107] S62 determines multiple first sound pressure levels for the left and right mixed channels, multiple second sound pressure levels for the left channel, and multiple third sound pressure levels for the right channel based on sweep signals of various preset frequencies.

[0108] The sound pressure level (SPL) refers to the sound intensity corresponding to different channels at the user's location when using the display device.

[0109] Specifically, for each different preset frequency sweep signal, the controller of the display device obtains multiple first sound pressure levels for the left and right mixed channels, multiple second sound pressure levels for the left channel, and multiple third sound pressure levels for the right channel based on the sweep signals of each different preset frequency.

[0110] S63, determine the initial sound pressure value based on multiple first sound pressure values, multiple second sound pressure values, and multiple third sound pressure values.

[0111] Specifically, after determining the multiple first sound pressure values ​​corresponding to the left and right mixed channels, the multiple second sound pressure values ​​corresponding to the left channel, and the multiple third sound pressure values ​​corresponding to the right channel, the controller of the display device calculates the initial sound pressure value based on the multiple first sound pressure values, the multiple second sound pressure values, and the multiple third sound pressure values.

[0112] S64, when it is determined that the initial sound pressure value is not equal to the preset target reference sound pressure value, set the initial sound pressure value to the target reference sound pressure value to obtain the target sound pressure value.

[0113] The target reference sound pressure value corresponds one-to-one with each of the different preset frequency sweep signals. That is, it can be understood that for each different preset frequency sweep signal, there is a target reference sound pressure value corresponding to the same preset frequency. For example, for a sweep signal with a preset frequency of 500 Hz, the frequency corresponding to the target reference sound pressure value is also 500 Hz. However, this is not a limitation, and this disclosure does not specifically limit the scope. Those skilled in the art can set the frequency according to the actual situation.

[0114] It should be noted that the target reference sound pressure level (SPL) value for each preset frequency sweep signal can be determined in a preset professional audio laboratory by identifying the optimal recording position of the external recording module based on the panel size and installation location of the display device. This allows the external recording module to record the initial sweep signal played by the display device from the optimal recording position. The recorded sweep signal is then processed to obtain the target reference SPL value. In a real-world scenario, adjusting the output audio of the display device based on this target reference SPL value can improve the sound quality received by the user.

[0115] The aforementioned target sound pressure level is used to process the audio output by the display device. For example, when the display device outputs audio, the graphic equalizer of the display device can be adjusted by the target sound pressure level, but it is not limited thereto. This disclosure does not specifically limit the settings, and those skilled in the art can set them according to the actual situation.

[0116] Specifically, after obtaining the initial sound pressure level (SPL) value, the controller of the display device compares the initial SPL value with a preset target reference SPL value. When it is determined that the initial SPL value is not equal to the target reference SPL value, the controller adjusts the initial SPL value using the target reference SPL value, that is, makes the initial SPL value equal to the target reference SPL value, and obtains the target SPL value. This allows the output audio to be adjusted using the target SPL value when the display device outputs audio.

[0117] In the technical solution provided by this disclosure, the controller of the display device receives multiple sweep signals of different preset frequencies sent by an external recording module; based on the sweep signals of different preset frequencies, it determines multiple first sound pressure levels for the left and right mixed channels, multiple second sound pressure levels for the left channel, and multiple third sound pressure levels for the right channel; based on the multiple first sound pressure levels, multiple second sound pressure levels, and multiple third sound pressure levels, it determines an initial sound pressure level; when it is determined that the initial sound pressure level is not equal to a preset target reference sound pressure level, it sets the initial sound pressure level to equal the target reference sound pressure level to obtain the target sound pressure level, wherein the target reference sound pressure level corresponds one-to-one with each of the sweep signals of different preset frequencies, and the target sound pressure level is used to process the audio output by the display device. In the above process, multiple sound pressure levels (SPL) values ​​for different channels are obtained based on the frequency sweep signals of different preset frequencies sent by the external recording module. Based on these multiple SPL values, the initial SPL value of the current location of the external recording module can be determined. The initial SPL value is then compared with a preset target reference SPL value. Since the target reference SPL value is an optimal SPL adjustment value obtained from a preset professional audio laboratory, when the initial SPL value and the target reference SPL value are inconsistent, the initial SPL value can be optimized and adjusted using the target reference SPL value. This improves the audio effect played by the display device, avoids the problem of poor sound optimization in existing technologies, provides users with high-quality sound, and enhances the user experience.

[0118] Figure 8 This is a flowchart illustrating another sound effect adjustment method provided in an embodiment of this disclosure. Figure 8 Is Figure 6 Based on the illustrated embodiments, further, as shown in the examples... Figure 8 As shown, one possible implementation of S62 includes:

[0119] S81 discretizes the sweep frequency signals for each different preset frequency to obtain the corresponding sweep frequency digital signal.

[0120] Discretization refers to the operation of converting a continuous analog signal into a discrete digital signal. Based on this, since the sweep frequency signal is a continuous analog signal, in order to facilitate subsequent operations, the sweep frequency signal is discretized to obtain the sweep frequency digital signal corresponding to the sweep frequency signal.

[0121] Optionally, based on the above embodiments, in some embodiments of this disclosure, the signal discretization processing of the frequency sweep signal can be achieved by Fourier transform. The specific implementation process can be referred to the prior art, and this disclosure will not elaborate further.

[0122] It should be noted that, based on the above embodiments, in some embodiments of this disclosure, before executing S81, in order to obtain the original sweep frequency signals corresponding to each different preset frequency sweep frequency signal, the sweep frequency signal is further sampled using the Nyquist sampling theorem. It should be noted that, in order to ensure that the sweep frequency signal is free from aliasing, the sampling frequency is half of the preset frequency corresponding to the sweep frequency signal during the sampling process.

[0123] S82 determines multiple first sound pressure levels, multiple second sound pressure levels, and multiple third sound pressure levels based on a swept-frequency digital signal.

[0124] Specifically, for each different preset frequency sweep signal, the controller of the display device discretizes the sweep signal to obtain the sweep digital signal corresponding to the sweep signal. Through the sweep digital signal, multiple first sound pressure levels of the left and right mixed channels, multiple second sound pressure levels of the left channel, and multiple third sound pressure levels of the right channel are obtained.

[0125] Figure 9 This is a flowchart illustrating another sound effect adjustment method provided in an embodiment of the present disclosure. Figure 9 Is Figure 8 Based on the illustrated embodiments, further, as shown in the examples... Figure 9 As shown, one possible implementation of S63 includes:

[0126] S91 calculates the average of multiple first sound pressure levels to obtain the first average sound pressure level of the left and right mixed channels.

[0127] S92, averages multiple second sound pressure values ​​to obtain the second average sound pressure value of the left channel;

[0128] S93, averages multiple third sound pressure levels to obtain the third average sound pressure level of the right channel;

[0129] S94, the first average sound pressure value, the second average sound pressure value and the third average sound pressure value are averaged to obtain the initial sound pressure value.

[0130] Specifically, the controller of the display device averages multiple first sound pressure values ​​corresponding to the left and right mixed channels to obtain the first average sound pressure value corresponding to the left and right mixed channels, averages multiple second sound pressure values ​​corresponding to the left channel to obtain the second average sound pressure value corresponding to the left channel, and averages multiple third sound pressure values ​​corresponding to the right channel to obtain the third average sound pressure value corresponding to the right channel. Furthermore, the first average sound pressure value, the second average sound pressure value, and the third average sound pressure value are averaged to obtain the initial sound pressure value.

[0131] Figure 10 This is a flowchart illustrating yet another sound effect adjustment method provided in an embodiment of the present disclosure. Figure 10 Is Figure 9 Based on the illustrated embodiments, further, as shown in the examples... Figure 10 As shown, one possible implementation of S82 could be:

[0132] S101, summate multiple second sound pressure values ​​with preset sound pressure values ​​respectively to obtain first summation results corresponding to multiple second sound pressure values, and average multiple first summation results to obtain the second average sound pressure value of the left channel.

[0133] The preset sound pressure value is used to increase the sound intensity of the second sound pressure value, so as to make the obtained sound pressure value clearer and facilitate subsequent correction. The preset sound pressure value can be, for example, 3dB, but is not limited thereto. This disclosure does not specifically limit it, and those skilled in the art can set it according to the actual situation.

[0134] Specifically, for the multiple second sound pressure levels corresponding to the left channel, the controller of the display device sums each of the second sound pressure levels corresponding to the left channel with a preset sound pressure level to obtain the first summation result corresponding to each second sound pressure level. Then, the controller averages the multiple first summation results to obtain the second average sound pressure level of the left channel.

[0135] Optional, continue to refer to Figure 10 As shown, one possible implementation of S83 could be:

[0136] S102, summate the multiple third sound pressure values ​​with the preset sound pressure value respectively to obtain the second summation results corresponding to the multiple third sound pressure values, and average the multiple second summation results to obtain the third average sound pressure value of the right channel.

[0137] Specifically, for the multiple third sound pressure levels corresponding to the right channel, the controller of the display device sums each of the third sound pressure levels corresponding to the right channel with a preset sound pressure level to obtain a second summation result for each third sound pressure level. Then, the controller averages the multiple second summation results to obtain the third average sound pressure level of the right channel.

[0138] In the technical solution provided by the embodiments of this disclosure, the clarity of the sound pressure values ​​corresponding to the left and right channels can be improved in the above process, which facilitates the subsequent correction of the sound quality of the display device.

[0139] Optionally, based on the above embodiments, in some embodiments of this disclosure, since different preset frequency sweep signals correspond to different target reference sound pressure values, multiple preset reference sound pressure values ​​and the correspondence between the preset reference sound pressure values ​​and different preset frequency sweep signals are stored on the display device, such as... Figure 11 As shown, the process before executing S64 also includes:

[0140] S111, based on the correspondence and various preset frequencies, determine the target reference sound pressure value corresponding to the sweep frequency signal of each different preset frequency among multiple preset reference sound pressure values.

[0141] Specifically, the controller of the display device determines the preset frequency corresponding to the sweep signal. Based on the preset frequency and the correspondence between the preset reference sound pressure value and the sweep signals of different preset frequencies, the target reference sound pressure value corresponding to each preset frequency sweep signal is determined among multiple preset reference sound pressure values.

[0142] In the technical solution provided by the embodiments of this disclosure, the target reference sound pressure value corresponding to the sweep frequency signal of different preset frequencies can be accurately obtained in the above process, so as to ensure the adjustment of the audio quality played by the display device.

[0143] Figure 12 This is a flowchart illustrating yet another sound effect adjustment method provided in an embodiment of the present disclosure. Figure 12 Is Figure 11 Based on the illustrated embodiment, furthermore, since the user's position for receiving audio changes constantly when using the display device in actual applications, and is not always in the exact center of the display device, there is a common problem of unbalanced volume between the left and right channels. For example... Figure 12 As shown, regarding the second average sound pressure level (SPL) value of the left channel and the third average SPL value of the right channel, when it is determined that the second average SPL value corresponding to the left channel is not equal to the third average SPL value corresponding to the right channel, it indicates that the audio currently received by the user and played by the display device has a problem of unbalanced volume between the left and right channels. Based on this, the method further includes:

[0144] S121, determine whether the second average sound pressure value is greater than the third average sound pressure value.

[0145] S122, when it is determined that the second average sound pressure value is greater than the third average sound pressure value, set the third average sound pressure value to be equal to the second average sound pressure value.

[0146] Specifically, for the second average sound pressure level of the left channel and the third average sound pressure level of the right channel, the controller of the display device compares the second average sound pressure level with the third average sound pressure level to determine whether the second average sound pressure level is greater than the third average sound pressure level. When it is determined that the second average sound pressure level is greater than the third average sound pressure level, the third average sound pressure level is set to be equal to the second average sound pressure level.

[0147] For example, the second average sound pressure level corresponding to the left channel can be 80dB, and the third average sound pressure level corresponding to the right channel can be 100dB. In order to ensure that the audio received by the user is balanced between the left and right channels and has a clearer sound quality, the second average sound pressure level corresponding to the left channel of 80dB is made equal to the third average sound pressure level corresponding to the right channel of 100dB. However, it is not limited to this. This disclosure does not specifically limit it. Those skilled in the art can set it according to the actual situation.

[0148] Optionally, based on the above embodiments, reference may be made to some embodiments of this disclosure. Figure 12 As shown, it also includes:

[0149] S123, when it is determined that the second average sound pressure value is not greater than the third average sound pressure value, and the second average sound pressure value is not equal to the third average sound pressure value, let the second average sound pressure value be equal to the third average sound pressure value.

[0150] Specifically, when the controller of the display device determines that the second average sound pressure value is not greater than the third average sound pressure value and the second average sound pressure value is not equal to the third average sound pressure value, the controller sets the third average sound pressure value to be equal to the second average sound pressure value.

[0151] In the technical solution provided by this disclosure, during the above process, when it is determined that the second average sound pressure value corresponding to the left channel is not equal to the third average sound pressure value corresponding to the right channel, the second average sound pressure value or the third average sound pressure value is adjusted to avoid the problem of unbalanced volume between the left and right channels in the audio played by the display device currently received by the user, thereby improving the user experience.

[0152] This disclosure provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the various processes of the above-described sound effect adjustment method and achieves the same technical effect. To avoid repetition, further details are omitted here.

[0153] The computer-readable storage medium can be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0154] This disclosure provides a computer program product, including: when the computer program product is run on a computer, causing the computer to implement the above-described sound effect adjustment method.

[0155] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the discussion in some embodiments above 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 embodiments and various different variations of the embodiments suitable for specific application considerations.

Claims

1. A display device, characterized in that, include: The controller is configured as follows: Receives multiple frequency sweep signals of different preset frequencies sent by an external recording module; Based on the frequency sweep signals of various preset frequencies, multiple first sound pressure levels for the left and right mixed channels, multiple second sound pressure levels for the left channel, and multiple third sound pressure levels for the right channel are determined. An initial sound pressure value is determined based on a plurality of first sound pressure values, a plurality of second sound pressure values, and a plurality of third sound pressure values; The first average sound pressure value of the left and right mixed channels is obtained by averaging multiple first sound pressure values. The average sound pressure value of the left channel is obtained by averaging multiple second sound pressure values. The average sound pressure level of the right channel is obtained by averaging the multiple third sound pressure levels. The initial sound pressure value is obtained by averaging the first average sound pressure value, the second average sound pressure value, and the third average sound pressure value. The step of averaging multiple second sound pressure values ​​to obtain the second average sound pressure value of the left channel is specifically as follows: The summation of multiple second sound pressure values ​​with a preset sound pressure value is performed to obtain a first summation result corresponding to each of the multiple second sound pressure values. The average of the multiple first summation results is then calculated to obtain a second average sound pressure value for the left channel. The process of averaging multiple third sound pressure levels to obtain the third average sound pressure level of the right channel is as follows: The summation of multiple third sound pressure values ​​with a preset sound pressure value is performed to obtain a second summation result corresponding to each of the multiple third sound pressure values. The average of the multiple second summation results is then performed to obtain the third average sound pressure value of the right channel. When it is determined that the initial sound pressure value is not equal to the preset target reference sound pressure value, the initial sound pressure value is set to equal the target reference sound pressure value to obtain the target sound pressure value. The target reference sound pressure value corresponds one-to-one with each of the frequency sweep signals of the different preset frequencies. The target sound pressure value is used to process the audio output by the display device.

2. The display device according to claim 1, characterized in that, The controller is specifically configured as follows: For each frequency sweep signal with a different preset frequency, the frequency sweep signal is discretized to obtain the frequency sweep digital signal corresponding to the frequency sweep signal; Based on the frequency sweep digital signal, a plurality of first sound pressure values, a plurality of second sound pressure values, and a plurality of third sound pressure values ​​are determined.

3. The display device according to claim 1, characterized in that, The display device stores multiple preset reference sound pressure values ​​and the correspondence between the preset reference sound pressure values ​​and sweep signals of different preset frequencies; The controller is also configured to: Based on the correspondence and the various preset frequencies, the target reference sound pressure value corresponding to the sweep signal of each different preset frequency is determined among the multiple preset reference sound pressure values.

4. The display device according to claim 1, characterized in that, The controller is also configured to: For the second average sound pressure value of the left channel and the third average sound pressure value of the right channel, determine whether the second average sound pressure value is greater than the third average sound pressure value; When it is determined that the second average sound pressure value is greater than the third average sound pressure value, the third average sound pressure value is set to be equal to the second average sound pressure value.

5. The display device according to claim 4, characterized in that, The controller is also configured to: When it is determined that the second average sound pressure value is not greater than the third average sound pressure value, and the second average sound pressure value is not equal to the third average sound pressure value, the second average sound pressure value is set to be equal to the third average sound pressure value.

6. A sound effect adjustment method, characterized in that, include: Receives multiple frequency sweep signals of different preset frequencies sent by an external recording module; Based on the frequency sweep signals of various preset frequencies, multiple first sound pressure levels for the left and right mixed channels, multiple second sound pressure levels for the left channel, and multiple third sound pressure levels for the right channel are determined. An initial sound pressure value is determined based on a plurality of first sound pressure values, a plurality of second sound pressure values, and a plurality of third sound pressure values; The first average sound pressure value of the left and right mixed channels is obtained by averaging multiple first sound pressure values. The average sound pressure value of the left channel is obtained by averaging multiple second sound pressure values. The average sound pressure level of the right channel is obtained by averaging the multiple third sound pressure levels. The initial sound pressure value is obtained by averaging the first average sound pressure value, the second average sound pressure value, and the third average sound pressure value. The step of averaging multiple second sound pressure values ​​to obtain the second average sound pressure value of the left channel is specifically as follows: The summation of multiple second sound pressure values ​​with a preset sound pressure value is performed to obtain a first summation result corresponding to each of the multiple second sound pressure values. The average of the multiple first summation results is then calculated to obtain a second average sound pressure value for the left channel. The process of averaging multiple third sound pressure levels to obtain the third average sound pressure level of the right channel is as follows: The summation of multiple third sound pressure values ​​with a preset sound pressure value is performed to obtain a second summation result corresponding to each of the multiple third sound pressure values. The average of the multiple second summation results is then performed to obtain the third average sound pressure value of the right channel. When it is determined that the initial sound pressure value is not equal to the preset target reference sound pressure value, the initial sound pressure value is set to be equal to the target reference sound pressure value to obtain the target sound pressure value. The target reference sound pressure value corresponds one-to-one with the sweep frequency signal of each different preset frequency. The target sound pressure value is used to process the audio output by the display device.

7. The method according to claim 6, characterized in that, The determination of multiple first sound pressure levels for the left and right mixed channels, multiple second sound pressure levels for the left channel, and multiple third sound pressure levels for the right channel based on the sweep signals of various preset frequencies includes: For each frequency sweep signal with a different preset frequency, the frequency sweep signal is discretized to obtain the frequency sweep digital signal corresponding to the frequency sweep signal; Based on the frequency sweep digital signal, a plurality of first sound pressure values, a plurality of second sound pressure values, and a plurality of third sound pressure values ​​are determined.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the steps of the sound effect adjustment method as described in any one of claims 6-7.

Images