CN115866501A - Display device and audio playing method based on position detection - Google Patents

Abstract

The application provides a display device and an audio playing method based on position detection, the method can play test audio respectively through a local loudspeaker and an external loudspeaker after a user inputs a control instruction for setting an audio output path, and collects test result signals for the test audio through a sound collector, so that the position of each loudspeaker is positioned according to the test result signals, and the output path of audio data is set according to the position of the loudspeaker. The method can output the audio data through the local loudspeaker and the external loudspeaker at the same time, and set an output path adaptive to the loudspeaker position by detecting the loudspeaker position so as to match the audio output channel with the loudspeaker position and improve the audio playing effect.

Description

Display device and audio playing method based on position detection

Technical Field

The application relates to the technical field of intelligent display equipment, in particular to display equipment and an audio playing method based on position detection.

Background

The display device is a terminal device capable of outputting a specific display picture, and may be a terminal device such as a smart television, a mobile terminal, a smart advertisement screen, and a projector. Taking an intelligent television as an example, the intelligent television is based on an Internet application technology, is provided with an open operating system and a chip, is provided with an open application platform, can realize a bidirectional man-machine interaction function, integrates multiple functions of video, entertainment, data and the like, and is a television product for meeting diversified and personalized requirements of users.

The intelligent television is also provided with an external device interface, and the intelligent television can be connected with external equipment capable of outputting audio or video through the external device interface so as to output sound or pictures played by the intelligent television through the external equipment. For example, to improve the output sound quality of a smart television, a bar-type sound device may be connected to the smart television. When the smart television plays audio data or video data with sound, the smart television can send the sound signal obtained by analysis to the bar-shaped sound equipment so as to output specific sound through the bar-shaped sound equipment.

Because the audio link of the intelligent television does not support the audio output interface and the built-in loudspeaker system to output signals simultaneously, the built-in loudspeaker of the intelligent television and the external sound equipment are mutually exclusive and do not support simultaneous sound production. After the external sound equipment is connected with the intelligent television, the built-in loudspeaker of the intelligent television is always in an unused state, the audio output effect of the intelligent television only depends on the hardware configuration of the external sound equipment, and the requirement of part of users on high-quality audio output effect cannot be met.

Disclosure of Invention

The application provides a display device and an audio playing method based on position detection, and aims to solve the problem that an audio output channel of a traditional display device is not matched with a position.

In one aspect, the present application provides a display device, comprising: the device comprises a display, a local loudspeaker, an external device interface, a sound collector and a controller. Wherein the display is configured to display a user interface. The local speaker is configured to play audio data and test audio. The external device interface is configured to connect to an external device, the external device including at least one external speaker, the external speaker also configured to play audio data and test audio. The sound collector is configured to detect a sound signal. The controller is configured to perform the following program steps:

acquiring a control instruction which is input by a user and used for setting an output path;

responding to the control instruction, playing test audio through the local loudspeaker and the external loudspeaker, wherein the test audio comprises a plurality of audio signals, and each audio signal is output through a separate audio output channel;

receiving a measurement result signal collected by the sound collector aiming at the test audio;

and positioning the position of a loudspeaker according to the measurement result signal, and setting an output path of the audio data according to the position of the loudspeaker.

On the other hand, the present application further provides an audio playing method based on position detection, which is applied to the display device provided in the first aspect, and the method includes the following steps:

acquiring a control instruction which is input by a user and used for setting an output path;

responding to the control instruction, playing test audio through the local loudspeaker and the external loudspeaker, wherein the test audio comprises a plurality of audio signals, and each audio signal is output through a separate audio output channel;

receiving a measurement result signal collected by the sound collector aiming at the test audio;

and positioning the position of a loudspeaker according to the measurement result signal, and setting an output path of the audio data according to the position of the loudspeaker.

According to the technical scheme, after a user inputs a control instruction for setting an audio output path, the display device and the audio playing method based on the position detection can play test audio respectively through the local loudspeaker and the external loudspeaker, collect test result signals for the test audio through the sound collector, position of each loudspeaker according to the test result signals and set the output path of audio data according to the position of the loudspeaker. The method can simultaneously output the audio data through the local loudspeaker and the external loudspeaker, and set the output path adaptive to the loudspeaker position by detecting the loudspeaker position so as to match the audio output channel with the loudspeaker position and improve the audio playing effect.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a usage scenario of a display device in an embodiment of the present application;

fig. 2 is a block diagram of a hardware configuration of a control device in the embodiment of the present application;

fig. 3 is a hardware configuration diagram of a display device in an embodiment of the present application;

FIG. 4 is a software configuration diagram of a display device in an embodiment of the present application;

FIG. 5 is a schematic diagram illustrating connection of an external device according to an embodiment of the present application;

FIG. 6 is a schematic diagram of an interactive menu interface in an embodiment of the present application;

FIG. 7 is a schematic diagram of a fusion mode audio system according to an embodiment of the present application;

FIG. 8 is a schematic flowchart illustrating an audio playing method based on position detection according to an embodiment of the present application;

FIG. 9 is a diagram illustrating a setup menu according to an embodiment of the present application;

FIG. 10 is a schematic flow chart illustrating the generation of measurement result signals according to an embodiment of the present application;

FIG. 11 is a schematic diagram of positioning a speaker according to an embodiment of the present application;

fig. 12 is an effect schematic diagram illustrating the external device being set as the front path in the embodiment of the present application;

fig. 13 is a schematic diagram illustrating an effect of setting an external device as a middle path in the embodiment of the present application;

FIG. 14 is a flow chart illustrating playing test audio in the embodiment of the present application;

FIG. 15 is a schematic diagram of a first prompt interface in an embodiment of the present application;

FIG. 16 is a second prompt interface diagram in an embodiment of the present application;

FIG. 17 is a schematic flow chart illustrating setting of an output path according to an acoustic pressure difference in an embodiment of the present application;

fig. 18 is a schematic flow chart illustrating a process of setting an output path according to a sound pressure determination value in the embodiment of the present application;

FIG. 19 is a schematic diagram illustrating an audio setup procedure in an embodiment of the present application;

fig. 20 is a timing diagram of an audio playing method based on position detection according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as examples of systems and methods consistent with certain aspects of the application, as detailed in the claims.

Fig. 1 is a schematic diagram of a usage scenario of a display device according to an embodiment. As shown in fig. 1, the display apparatus 200 is also in data communication with a server 400, and a user can operate the display apparatus 200 through the smart device 300 or the control device 100.

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes at least one of an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, and the display device 200 is controlled by a wireless or wired method. The user may control the display apparatus 200 by inputting a user instruction through at least one of a key on a remote controller, a voice input, a control panel input, and the like.

In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers.

Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface 140, a memory, and a power supply. The control apparatus 100 may receive an input operation instruction from a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an interaction intermediary between the user and the display device 200.

Fig. 3 illustrates a hardware configuration block diagram of the display apparatus 200 according to an exemplary embodiment.

In some embodiments, the display apparatus 200 includes at least one of a tuner 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.

In some embodiments the controller comprises a central processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an nth interface for input/output.

In some embodiments, the display 260 includes a display screen component for displaying pictures, and a driving component for driving image display, a component for receiving image signals from the controller output, displaying video content, image content, and menu manipulation interface, and a user manipulation UI interface, etc.

In some embodiments, the display 260 may be at least one of a liquid crystal display, an OLED display, and a projection display, and may also be a projection device and a projection screen.

In some embodiments, the tuner demodulator 210 receives broadcast television signals via wired or wireless reception, and demodulates audio/video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.

In some embodiments, the external device interface 240 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, and the like. Or may be a composite input/output interface formed by the plurality of interfaces.

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 apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.

In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on display 260, and the user input interface receives the user input commands through the Graphical User Interface (GUI). Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

In some embodiments, a "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form that is acceptable to the user. A common presentation form of a User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include at least one of an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc. visual interface elements.

In some embodiments, the system of the display device may include a Kernel (Kernel), a command parser (shell), a file system, and an application. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.

Referring to fig. 4, in some embodiments, the system is divided into four layers, which are an Application (Applications) layer (abbreviated as "Application layer"), an Application Framework (Application Framework) layer (abbreviated as "Framework layer"), an Android runtime (Android runtime) and system library layer (abbreviated as "system runtime library layer"), and a kernel layer from top to bottom.

In some embodiments, at least one application program runs in the application program layer, and the application programs may be windows (windows) programs carried by an operating system, system setting programs, clock programs or the like; or may be an application developed by a third party developer. In particular implementations, the application packages in the application layer are not limited to the above examples.

The framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions. The application framework layer acts as a processing center that decides to let the applications in the application layer act. The application program can access the resources in the system and obtain the services of the system in execution through the API interface.

As shown in fig. 4, in the embodiment of the present application, the application framework layer includes a manager (Managers), a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an Activity Manager (Activity Manager) is used for interacting with all activities running in the system; a Location Manager (Location Manager) for providing access to the system Location service to the system service or application; a Package Manager (Package Manager) for retrieving various information about an application Package currently installed on the device; a Notification Manager (Notification Manager) for controlling display and clearing of Notification messages; a Window Manager (Window Manager) is used to manage icons, windows, toolbars, wallpapers, and desktop components on a user interface.

As shown in fig. 5, based on the display apparatus 200, a user may connect an external device 500 through an external device interface 240. The external device 500 may have a sound and picture output function, that is, may output sound and pictures. For example, the external device 500 may be a bar-type sound device having an audio output function. The external device 500 may be connected to the external device Interface 240 through a specific Interface specification, such as a High Definition Multimedia Interface (HDMI), a Universal Serial Bus (USB), and the like. For example, a bar audio device may be connected to the display device 200 through a USB interface. When the display device 200 needs to output audio, the audio data can be sent to the bar audio device through the USB interface, and the bar audio device converts the audio data into a sound signal to realize audio output.

In some embodiments, the external device 500 may have a certain data processing function while having an output function, so as to control an output process of audio and video. For example, for a bar audio device, sound quality processing may also be performed on the audio transmitted by the display device 200 to play the audio data in a particular output manner to obtain a corresponding sound quality effect. Therefore, the user can realize the control of the data processing function through interactive action, namely, the setting of the output mode is realized. For example, the setting contents that the bar-type sound can support include a sound effect mode, a surround switch, a treble adjustment, a bass adjustment, a display screen brightness adjustment, factory reset, and the like.

The external device 500 may be provided with a setting interaction mode matched with the local device, for example, a button, a knob, a switch and other interaction components are provided on the bar-shaped sound device, and a user may adjust the interaction components on the bar-shaped sound device by pressing, rotating and other operations to complete the setting process. In some embodiments, the external device 500 may further support remote control settings, i.e. the external device 500 may further be equipped with a remote control device of the external device 50. The remote controller is provided with function keys and is connected with the external equipment 500 in a wireless transmission mode such as infrared and Bluetooth. In the setting process, the user may input an interactive action corresponding to the function to be set through the keys on the remote controller, so that the remote controller sends a wireless signal to the external device 500. After receiving the wireless signal, the external device 500 may complete corresponding settings according to the interaction.

In some embodiments, after the external device 500 is connected to the display device 200, the display device 200 may control the external device 500 to complete the setting function. I.e., the user may input an interactive action based on the interactive manner of the display device 200. The display device 200 generates a setting instruction according to the interaction, and sends the setting instruction to the external device 500, so that the external device 500 can implement corresponding setting according to the setting instruction after receiving the setting instruction.

In order to control the external device 500 through the display device 200, the display device 200 needs to establish a communication connection with the external device 500. The specific communication connection may be based on the external device interface 240. For example, the bar audio may be connected to the display device 200 through an HDMI interface. When the display apparatus 200 needs to output sound, the display apparatus 200 may transmit audio data to the bar stereo through a Minimized Differential Signal (TMDS) pin of the HDMI interface. And, when it is necessary for the display device 200 to transmit a setting instruction to the bar stereo, the setting instruction may be transmitted to the bar stereo through a Consumer Electronics Control (CEC) pin in the HDMI interface.

The display device 200 may also establish a communication connection with the external device 500 based on the communicator 220 for transferring various instructions and/or audio-video data. Communicator 220 may implement wired or wireless connectivity based on different communication protocols. For example, the communicator 220 of the display device 200 may be provided with a bluetooth module therein, and the display device 200 may be connected to the bar stereo via bluetooth connection.

Based on this, when it is necessary for the display device 200 to transmit a setting instruction to the bar audio, the setting instruction may be transmitted to the external device 500 through the communicator 220. For example, as shown in fig. 6, when the volume needs to be adjusted, the user may enter an interactive menu interface related to the external audio through the control device 100, select a volume option in the interactive menu, and input a setting instruction for increasing or decreasing the volume. The display device 200 then sends a setup instruction to the bar stereo via the bluetooth module in the communicator 220. The bar-shaped sound box can increase the gain of the audio output channel according to the setting instruction after receiving the setting instruction so as to increase or decrease the output volume.

The communication modes supported by the external device 500 are different for different types of external devices. Some external devices 500 may support multiple communication modes, and some external devices 500 only support one communication mode. For example, for a part of the higher-end bar-shaped sound equipment, it is possible to support an interface method such as analog, optical fiber, or coaxial cable, etc., for transmitting Audio data, and support a communication method such as bluetooth, HDMI voice Return Channel (ARC), HDMI Input (IN) interface, etc., for transmitting an Audio-related instruction. And for part of bar-shaped sound equipment at the lower end, only an analog signal interface can be supported for transmitting audio data, and Bluetooth communication can be supported for transmitting instructions.

For different types of external devices 500, audio/video output and control functions can be realized through different data/instruction transmission modes. For example, for a lower end bar sound, the external device interface 240 of the display apparatus 200 may be connected through an analog signal line to acquire audio data from the display apparatus 200 through an analog signal. Meanwhile, the bar audio can also establish communication connection with the display device 200 through bluetooth. The display apparatus 200 may transmit audio data to the bar stereo through the external device interface 240 during use. Meanwhile, when the operation parameters such as volume and tone quality of the bar audio needs to be controlled and adjusted, a setting instruction can be sent to the bar audio through the bluetooth module of the communicator 220.

In some embodiments, the audio data and the setting instruction can be acquired from the display device 200 directly through the HDMI interface at the same time without an additional connection of a bluetooth module. Moreover, for the external device 500 such as a bluetooth speaker that supports the wireless playing function, the audio data and the setting instruction may also be transmitted simultaneously through the bluetooth connection, so as to output the audio through the bluetooth speaker, and perform setting on the external device 500 through the display device 200.

In order to take various types of external devices 500 into consideration, in some embodiments of the present application, the display device 200 is connected to the external device 500 through the external device interface 240 to transmit audio and video data; meanwhile, a communication connection is established with the external device 500 through the communicator 220 for transmitting the setting instruction. The data/instruction transmission mode not only can give consideration to various types of external equipment 500, but also can reduce delay and pause in the audio and video output process by utilizing the transmission timeliness of the external device interface 240.

After the display device 200 is connected to the external device 500, the output mode of the original audio/video data may be changed, for example, after the display device 200 is connected to the audio device, the audio signal generated when the display device 200 plays the media data may be output by the external audio device, and the local speaker of the display device 200 may stop working. Such an audio output mode may enable the display device 200 to obtain an audio output effect of an external sound device, thereby improving audio output quality.

However, with the continuous update of the hardware facilities of the display device 200, the local speaker built in the display device 200 also has a good sound quality effect, and therefore, in order to meet the requirement of the user for a better sound quality effect, in some embodiments, the display device 200 may provide a sound quality fusion mode, that is, after the sound quality fusion mode is enabled by the display device 200, the local speaker of the display device 200 and the external speaker of the external device 500 may simultaneously perform audio output, and a better audio output effect may be obtained through reasonable switching and path planning.

For example, as shown in fig. 7, the display apparatus 200 may be connected to a bar sound through the external device interface 240, and after the bar sound is connected, the display apparatus 200 and the bar sound may provide an audio playing system including 5 speakers. That is, the audio playing system includes a left channel speaker, a woofer, and a right channel speaker among the local speakers of the display apparatus 200, and a left channel speaker and a right channel speaker among the external speakers of the bar audio. When display device 200 uses tone quality to merge the mode and carries out the audio playback, can put the route audio frequency in the woofer broadcast in the local speaker, through the leading route audio frequency of left channel speaker and the play of right channel speaker in the local speaker, the route audio frequency is encircleed in the play of left channel speaker and the play of right channel speaker through external speaker simultaneously to put in obtaining, leading, encircleing triple audio effect, improve broadcast tone quality.

Obviously, in order to obtain better sound quality of the playback, the output path to which each speaker is set should be adapted to the position of the speaker. For example, the speaker set as the output center path should be located at a middle position in front of the user viewing area, the speaker set as the front path should be located at a front position of the user viewing area, and the speaker set as the surround path should be located at a position around the user viewing area. However, since the specific positions of the speakers are variable due to the influence of the placement position of the user, in practical use, the problem that the audio output path does not match the speaker position easily occurs. For example, when the external device 500 connected to the display device 200 is an audio device in which a left channel speaker and a right channel speaker are close to each other, if an output path provided for the external device is a surround path, surround sound is emitted in a concentrated area, and a good surround sound effect cannot be obtained.

Therefore, in order to improve the audio output effect, audio playing can be performed based on the position detection of the speaker, that is, in some embodiments of the present application, an audio playing method based on the position detection is provided. The audio playing method can be applied to the display apparatus 200, and to meet the implementation of the audio playing method, the display apparatus 200 at least includes a display 260, a local speaker, an external device interface 240, a sound collector, and a controller 250. Wherein the display 260 is configured to display a user interface. The local speaker is configured to play audio data and test audio. The external device interface 240 is configured to connect to an external device 500, and the external device 500 includes at least one external speaker, which is also configured to play audio data and test audio. The sound collector is configured to detect a sound signal. The controller 250 is configured to execute a control program corresponding to the audio playing method, as shown in fig. 8, specifically including the following contents:

and acquiring a control instruction which is input by a user and used for setting an output path. In use, a user may input control instructions for various functions based on UI interaction policies defined in the operating system of the display device 200. Wherein a portion of the control instructions may be used to set an audio output path of the display device 200. The display device 200 may then obtain a control instruction for setting the output path by listening to the user's interaction.

In some embodiments, the control instructions for setting the output path may complete the input based on the manner of interaction on a particular user interface. That is, as shown in fig. 9, the user may control the display apparatus 200 to display a setting interface or a setting menu by controlling the focus cursor on the display apparatus 200 to move to a "setting" option in a control homepage through the control device 100. And then sequentially selecting the options of 'sound setting-audio output path resetting' based on the setting interface or the setting menu, and controlling the display device 200 to set the audio output path.

In some embodiments, the control instruction for setting the output path may also be automatically input when it is determined that the operating state of the display apparatus 200 satisfies a specific condition. For example, the display apparatus 200 may detect the connection state of the external device interface 240 in real time, and when it is detected that an audio output device is connected to the external device interface 240 and the display apparatus 200 is in the audio fusion mode at this time, it may automatically trigger the input of a control instruction for setting an output path. For another example, when the display device 200 detects that the user first turns on the audio fusion mode, that is, the user adjusts the switch corresponding to the "fusion mode" to the on state in the audio setting menu, the input of the control instruction for setting the output path may also be automatically triggered.

In some embodiments, for a display device 200 that supports a particular interaction mode, the user may also input control instructions for setting the output path based on the particular interaction mode. For example, for the display device 200 supporting touch interaction, the user may touch the lower left corner and the lower right corner of the display 260 (where the local speaker is located) at the same time, and trigger the display device 200 to start the fusion mode and trigger the input of a control instruction for setting the output path in a gesture interaction manner of sliding to the central area. For another example, for the display device 200 supporting smart voice interaction, the user may also control the display device 200 to open the set output path, that is, input a control instruction for setting the output path, by inputting a voice instruction including contents such as "adjust audio output path", "open the fusion mode", and the like.

After the user inputs a control command for setting an output path through any of the above-described embodiments, the display device 200 may play the test audio through the local speaker and the external speaker in response to the control command. Wherein the test audio comprises a plurality of audio signals, each audio signal being output via a separate audio output channel. For the convenience of identification, the test audio can be specific sound with fixed frequency, loudness and timbre, and comprises audio signals not less than the total number of the loudspeakers according to the total number of the loudspeakers in the current fusion mode.

For example, the test tone may be a piano tone with a frequency of 440Hz and a loudness of 70 dB. And according to the speaker arrangement mode contained in the current fusion mode: the middle path, the left front path, the right front path, the left surround path, the right surround path and the 5 output paths are respectively provided with 5 middle test audio signals which are respectively output through the middle sound channel, the left front sound channel, the right front sound channel, the left surround sound channel and the right surround sound channel.

In some embodiments, to alleviate the influence of the environmental sounds on the playing effect of the test audio, the display device 200 may further include various forms of test sound effects. For example, a combination of a plurality of frequencies, a plurality of loudness, and a plurality of timbres may be set to obtain a plurality of test audio signal types, so that a user may select the test audio signal type by himself or herself according to different environments, or the display device 200 may automatically switch the test audio signal type involved in detection according to the signal quality of the subsequent measurement.

After determining the played test audio, the display apparatus 200 may repeatedly play the test audio N times by the total number N of speakers. The output path for each repeated play of the test audio is different so that each speaker can emit sound separately. For example, after setting the test audio to a piano tone with a frequency of 440Hz and a loudness of 70dB, the display apparatus 200 may play the test audio sequentially through the center speaker, the left channel local speaker, the right channel local speaker, the left channel external speaker, and the right channel external speaker.

In order to implement the above sequential playing process, the display device 200 may sequentially output the test audio in each output channel according to the audio output path set in the current fusion mode before playing the test audio each time. For example, at the time of initial playback, the display apparatus 200 may assign output paths of the respective speakers by default according to the total number of speakers, and generate a test order based on the assigned paths. And then according to the test sequence, firstly playing the test audio through the middle loudspeaker. After the test audio is played once through the center speaker, the display device 200 may query an output path of the next playing process according to a set test sequence, that is, the left channel local speaker, and an audio output path corresponding to the left channel local speaker is a left channel of the front path, so that the test audio may be played according to the output path, and the display device 200 may play the test audio through the left channel local speaker. By analogy, the display device 200 may determine the output path of the audio for each test by querying the set test sequence until all speakers individually complete the playing process.

In some embodiments, the sequential playing process may also be implemented by setting a form of a playlist. That is, the display apparatus 200 may automatically create test audio files having the same total number of speakers after default allocation of output paths of the speakers according to the total number of speakers, each test audio file being set to be played according to a separate output path. For example, after determining that the total number of speakers is 5, the display apparatus 200 may copy the test audio file by 5 and set an output path for each copied file, that is, an output path of the first audio file is a center path, an output path of the second audio file is a front left channel, an output path of the third audio file is a front right channel, an output path of the fourth audio file is a surround left channel, and an output path of the fifth audio file is a surround right channel. In this way, the display apparatus 200 may generate a play list including the first to fifth audio files, so that when played according to the play list, the center channel, the left front channel, the right front channel, the left surround channel, and the right surround channel may be sequentially and individually output.

In the process of controlling the local loudspeaker and the external loudspeaker to play the test audio, the local loudspeaker and the external loudspeaker can generate sound signals in the playing process, and the generated sound signals can be collected by the sound collector to form measurement result signals. Therefore, the display device 200 may receive the measurement result signal collected by the sound collector for the test audio after controlling the local speaker and the external speaker to play the test audio.

The sound collector may be a far-field microphone built in the display device 200, and the far-field microphone may be disposed in an area below the display 260 of the display device 200, and may collect various sounds in the current environment in real time, and convert the sounds into an electrical signal, that is, a measurement result signal. The sound collector may also be an external microphone accessed through the external device interface 240 on the display apparatus 200, for example, a 3.5mm audio interface may be provided on the display apparatus 200, and a user may insert a microphone apparatus into the interface, so as to collect sound in the current scene through the microphone apparatus, generate a measurement result signal, and transmit the measurement result signal to an internal system of the display apparatus 200.

In some embodiments, the sound collector may also be built in the control apparatus 100 associated with the display device 200, that is, the control apparatus 100 may be provided with a microphone hole, and a microphone assembly is built in the microphone hole. In a conventional usage scenario, the microphone assembly built into the control device 100 may be used for user input of voice control instructions. And after the user inputs a control instruction for setting the output path, the display apparatus 200 may transmit a collection instruction to the control device 100, and the control device 100 may turn on the microphone assembly in response to the collection instruction to collect sounds in the environment through the microphone assembly to generate the measurement result signal.

Due to the interference of the environmental sound, the sound signal detected by the sound collector may include other sound signals except the test audio, so the display device 200 may further perform signal processing such as noise reduction and impurity removal on the sound signal after receiving the sound signal collected by the sound collector, and identify the sound corresponding to the test audio in the sound signal. That is, as shown in fig. 10, in some embodiments, after the display apparatus 200 may acquire the sound signal through the sound collector, the waveform of the sound signal is compared with the test audio waveform. Since the test audio has a specific form, that is, has a waveform of a specific form, it can be identified whether or not the sound signal is derived from the test audio by comparing the waveforms of the signals. If the waveform of the sound signal is the same as the test audio waveform, the sound signal is marked as a measurement result signal.

The measurement result signal acquired by the sound acquirer for the test audio may include waveform data corresponding to specific audio content, and information such as time when specific waveform data is acquired. This information may be further processed by the controller 250 to locate the position of each speaker based on the measurement signals.

In some embodiments, the controller 250 of the display apparatus 200 may extract the acquisition time in the measurement result signal and the playing time of the test audio after acquiring the measurement result signal. For this reason, when the display device 200 controls the local speaker and the external speaker to play the test audio, a timestamp may be set for the test audio, where the timestamp is used to represent the time when the display device 200 starts playing the test audio, i.e., the playing time. The acquisition time may be determined as the time corresponding to the measurement result signal just detected after the display device 200 recognizes the sound signal as the measurement result signal. For example, the display apparatus 200 sets the playback time of the test audio to be 8. After being played by a loudspeaker, the sound signal can be transmitted to a sound collector position, collected by the sound collector and converted into a measurement result signal, namely the acquisition time of the measurement result signal is 8.

After the display device 200 extracts the playing time and the acquiring time, the display device 200 may calculate a propagation time of the sound signal transmitted from the speaker to the sound collector according to the playing time and the acquiring time, that is, a time difference between the acquiring time and the playing time. For example, when the playback time is 8.

Based on the time difference obtained by the calculation, the display device 200 may calculate a distance between the sound collector and each of the local speakers and the external speaker according to the time difference. Since the propagation speed of the sound wave in the current application environment is known, after the time difference is obtained, the distance between the speaker and the sound collector can be calculated according to the time difference and the sound wave propagation speed. For example, if the speed of sound in the air is 340m/s under the conditions of 1 standard atmosphere and 15 ℃, the distance between the speaker and the sound collector can be calculated to be 340 × 0.006=2.04m after the time difference between the playing time and the acquiring time is calculated to be 6ms.

According to the above manner, the display device 200 may calculate the distance between the sound collector and each speaker by calculating the time difference between the playing time and the obtaining time and combining the sound wave propagation speed when controlling the local speaker and the external speaker to play the test audio each time. As such, the position of each speaker can be located according to the distance to set the output path of the audio data according to the speaker position.

For example, as shown in fig. 11, when the sound collector is disposed on the left side of the display device 200 and at a position collinear with the local speakers or the external speakers of the left and right channels, the distance between the sound collector and each speaker, that is, the distance L0 between the sound collector and the center speaker, the distance L1 between the sound collector and the local speaker of the left channel, the distance L2 between the sound collector and the local speaker of the right channel, the distance L3 between the sound collector and the external speaker of the left channel, and the distance L4 between the sound collector and the external speaker of the right channel, may be calculated through a multi-play test audio and sound signal detection process. And determining the position of each loudspeaker according to the calculated size relationship among the distances. That is, by comparing and determining that L0 is between L1 and L2, it can be determined that it is at the middle position, and thus the audio output path corresponding to the center speaker can be set as the center path. Similarly, it can be determined by comparison that L1 is smaller than L2, that is, L1 corresponds to the speaker as the left channel speaker, and meanwhile, since L1 is larger than L3, it can be determined that L1 corresponds to the speaker not suitable as the surround speaker, but more suitable as the front audio speaker, that is, the output path of the left channel local speaker can be set as the front left channel path.

In some embodiments, in order to set the audio output effect of the fused display device 200 and the external device 500, the display device 200 may calculate a distance determination value according to the detected distance, wherein the distance determination value is a distance between the left channel speaker and the right channel speaker. That is, the distance determination value of the display device 200 is the distance between the left channel speaker and the right channel speaker among the local speakers, that is, D2= L2-L1. The distance determination value of the external device 500 is the distance between the left channel speaker and the right channel speaker in the external speaker, i.e., D5= L4-L3.

When the display device 200 sets the output path of the audio data according to the speaker parameter, the distance determination values in the display device 200 and the external device 500 may be first obtained, and then the obtained distance determination value of the display device 200 is compared with the distance determination value of the external device 500, so as to determine the setting mode according to the comparison result.

As shown in fig. 12, when both the display apparatus 200 (Master) and the external apparatus 500 (Slave) do not have a center speaker, if the distance between the left channel speaker and the right channel speaker (L & R) in the display apparatus 200 is smaller than the distance between the left channel speaker and the right channel speaker (L & R) in the external apparatus 500, the left channel speaker and the right channel speaker in the display apparatus 200 are set as the center; the left channel speaker and the right channel speaker in the external device 500 are used as front L & R; setting the left channel speaker and the right channel speaker (L & R) in the display apparatus 200 as a front L & R if the distance between the left channel speaker and the right channel speaker (L & R) in the display apparatus 200 is greater than the distance between the left channel speaker and the right channel speaker (L & R) in the external apparatus 500; the left channel speaker and the right channel speaker in the external device 500 are set as a center.

When both the display apparatus 200 (Master) and the external device 500 (Slave) have a center, if a distance between the left channel speaker and the right channel speaker (L & R) in the display apparatus 200 is smaller than a distance between the left channel speaker and the right channel speaker (L & R) in the external device 500, the left channel speaker and the right channel speaker in the display apparatus 200 are set as front L & R; the left channel speaker and the right channel speaker in the external device 500 serve as surround Ls & Rs. Setting the left channel speaker and the right channel speaker (L & R) in the display apparatus 200 as surround Ls & Rs if the distance between the left channel speaker and the right channel speaker (L & R) in the display apparatus 200 is greater than the distance between the left channel speaker and the right channel speaker (L & R) in the external apparatus 500; the left channel speaker and the right channel speaker in the external device 500 serve as front L & R.

In some embodiments, when the display device 200 partially coincides with the speaker in the external device 500, the display device 200 may set the same output path to the speaker whose position coincides, thereby obtaining an enhancement effect to the channel. That is, the display device 200 may traverse the installation position of the local speaker and the setting position of the external speaker among the speaker parameters when setting the output path of the audio data according to the speaker parameters. And marking the overlapped sound channel loudspeaker according to the installation position and the setting position, so that the sound channel signal corresponding to the installation position in the audio data is transmitted to the overlapped sound channel loudspeaker at the same time.

For example, when the display device 200 and the external device 500 both include woofers, since the woofers have the same output effect and the positions of the loudspeakers coincide (both are usually disposed at positions close to the ground), when audio fusion is performed, the woofers on both devices can be simultaneously set to play audio data in a bass channel, thereby obtaining an effect of bass enhancement.

As can be seen from the above, the display apparatus 200 can set an output path of audio data in the manner provided by the above-described embodiments. In some embodiments of the present application, an audio smart fusion module may be further built in the display device 200 to implement the setting of the output path. The audio intelligent fusion module may automatically calculate and distribute audio parameters according to the two sets of devices provided by the display device 200 and the external device interface 240, and control the audio system of the display device 200 to adjust items such as a link, audio parameters, transmission time, and the like, so as to finally realize fusion of the inner and outer systems.

In some embodiments, when the sound collector in the display device 200 is an external microphone or a microphone on the control apparatus 100, in order to obtain a more accurate detection result, the display device 200 may instruct the user to set the sound collector at a suitable position through a specific prompt interface, that is, as shown in fig. 14, the local speakers may include a left local speaker and a right local speaker, and the display device 200 may control the display to display the first prompt interface in the step of playing the test audio through the local speakers and the external speaker.

The first prompt interface is used for prompting a user to set the sound collector at a position collinear with the left local loudspeaker and the right local loudspeaker. As shown in fig. 15, the first prompt interface may present a prompt screen on the display device 200 by means of text, graphics, animation, and a combination thereof. To improve the measurement accuracy, the distance between the sound collector and the display device 200 is preferably between 0.4 and 1 m. The display device 200 may automatically switch to displaying the first prompt interface after acquiring the control instruction for setting the output path, so as to guide the user to set the sound collector at a more appropriate position, i.e., a position collinear with the left and right local speakers.

The first prompt interface can also be provided with a confirmation control for a user to select to input a first confirmation instruction after the user sets the position of the sound collector. The display device 200 receives a first confirmation instruction input by the user based on the first prompt interface, and plays the test audio through the left local speaker and the right local speaker sequentially after receiving the first confirmation instruction. For example, after the user sets the sound collector at a position flush with the bottom of the screen of the display device 200 according to the prompt of the first prompt interface, the user may click the "confirm" option in the prompt interface, and then the display device 200 may first control the left local speaker to play the test audio and complete one sound signal detection; and controlling the right local loudspeaker to play test audio, and completing sound signal detection once again to realize the detection of the position of the local loudspeaker.

After the user sets the sound collector at the position collinear with the left local loudspeaker and the right local loudspeaker through the first prompt interface, the display device 200 may determine the position of the local loudspeaker based on the detection result of the sound collector, and when the external device 500 is set near the display device 200, the position of the external loudspeaker may also be detected together, for example, when the external device 500 is a bar-shaped sound device set below the display device 200, the position of the external loudspeaker may be directly detected by the placement position prompted by the first prompt interface. However, in the using process, the user may set the external device 500 at a position far away from the display device 200, and at this time, if the external device is detected according to the positions collinear with the left and right local speakers, the determination of the external speaker position by the display device 200 will be inaccurate.

Therefore, in some embodiments, after the display device 200 displays the first prompt interface and completes the detection, the display device 200 may further prompt the user to adjust the position of the sound collector through the second prompt interface, that is, when the external speakers include a left external speaker and a right external speaker, the display device 200 may control the display 260 to display the second prompt interface. As shown in fig. 16, the second prompt interface is used to prompt the user to set the sound collector at a position collinear with the left external speaker and the right external speaker, and the specific display style of the second prompt interface is the same as that of the first prompt interface, and the second prompt interface presents a prompt picture on the display device 200 in a manner of characters, graphics, animations, and combinations thereof.

The user can set the sound collector at the position collinear with the left external loudspeaker and the right external loudspeaker according to the indication mode in the second prompt interface, and click the 'confirmation' option after the setting is finished so as to output a second confirmation instruction. The display device 200 plays the test audio sequentially through the left external speaker and the right external speaker after receiving a second confirmation instruction input by the user based on the second prompt interface. And then, by receiving test result signals generated by the sound collector aiming at the audio played by the left external speaker and the right external speaker, the display device 200 can position the positions of the left external speaker and the right external speaker according to the test result signals.

According to the technical scheme, in the above embodiment, the display device 200 may prompt the user to set the sound collector at the position where the speaker position is convenient to locate through the prompt interface, so that the sound collector can detect a better signal, and the audio output path can be set more accurately.

In some embodiments, the display device 200 may also determine its corresponding sound pressure level value by analyzing the measurement signal when locating the speaker position according to the measurement signal. Wherein the sound pressure level value represents the size of the sound by a pair number. For example, the sound pressure p to be measured and the reference sound pressure p _ref The ratio of (a) to (b) is a common logarithm, and the value obtained by multiplying the common logarithm by 20 is defined as a sound pressure level, i.e., the sound pressure level =20lg (p/p) _ref )。

For this, the display device 200 may detect the energy density and/or the signal average amplitude of the measurement result signal after acquiring the measurement result signal, calculate a sound pressure level value of each audio output channel according to the energy density and/or the signal average amplitude, and then calculate relative position data of each speaker according to the sound pressure level value to set an output path of the audio data according to the relative position data. The relative position data is used for representing the distance between the left and the right sound channels, namely for the local loudspeaker, the relative position data is used for representing the distance between the left local loudspeaker and the right local loudspeaker, and for the external loudspeaker, the relative position data is used for representing the distance between the left external loudspeaker and the right external loudspeaker.

The relative position data may be directly a specific distance value, or may be other values that reflect the specific distance value. For example, the display device 200 may analyze the measurement result signal to obtain sound pressure level values of four channels as: the left local loudspeaker is SPL1, the right local loudspeaker is SPL2, the left external loudspeaker is SPL3, and the right external loudspeaker is SPL4. According to the acoustic law, it can be derived that:

SPL1-SPL2＝20lg(L2/L1)＝20lg((L1+D2)/L1)＝20lg(1+D2/L1)；

SPL3-SPL4＝20lg(L4/L3)＝20lg((L3+D5)/L3)＝20lg(1+D5/L3)；

wherein, L1 is the distance between the sound collector and the left local loudspeaker; l2 is the distance between the sound collector and the right local loudspeaker; l3 is the distance between the sound collector and the left external loudspeaker; l4 is the distance between the sound collector and the right external loudspeaker; d2 is the distance between the left local loudspeaker and the right local loudspeaker; and D5 is the distance between the left external loudspeaker and the right external loudspeaker.

Referring to fig. 11, the larger D2, the smaller L1; the smaller D2, the larger L1. Similarly, the relationship between D5 and L3 is the same. Since the magnitudes of D2 and D5 directly determine the magnitudes of D2/L1 and D5/L3, and thus (SPL 1-SPL 2) and (SPL 3-SPL 4). Therefore, the magnitude relation between both the speaker spacings D2 and D5 can be compared by calculating the sound pressure difference.

That is, in some embodiments, the display device 200 may calculate the first and second sound pressure differences according to the sound pressure level value of each audio output channel in the step of setting the output path of the audio data according to the relative position data. Wherein the first sound pressure difference is equal to a difference in sound pressure level values between the local speakers, i.e., (SPL 1-SPL 2); the second sound pressure difference is equal to the difference in sound pressure level values between the external speakers, i.e., (SPL 3-SPL 4).

Comparing the first sound pressure difference (SPL 1-SPL 2) with the second sound pressure difference (SPL 3-SPL 4), as shown in fig. 17, if the first sound pressure difference (SPL 1-SPL 2) is smaller than the second sound pressure difference (SPL 3-SPL 4), that is, the distance D2 between the left local speaker and the right local speaker is smaller than the distance D5 between the left external speaker and the right external speaker, the local speaker can be set as a front path, and the external speaker is set as a surround path, so as to obtain better surround sound and front sound effects. Similarly, if the first sound pressure difference (SPL 1-SPL 2) is greater than the second sound pressure difference (SPL 3-SPL 4), that is, the distance D2 between the left local loudspeaker and the right local loudspeaker is greater than the distance D5 between the left external loudspeaker and the right external loudspeaker, the local loudspeaker is set as a surround path, and the external loudspeaker is set as a front path.

In some embodiments, if the first sound pressure difference obtained by calculation is equal to the second sound pressure difference, the sound pressure level values of the local speaker and the external speaker in the same-side output channel may be compared again, that is, as shown in fig. 18, the display device 200 may obtain a sound pressure determination value, where the sound pressure determination value is the sound pressure level values of the local speaker and the external speaker in the same-side output channel. For example, when it is determined that the first sound pressure difference (SPL 1-SPL 2) is equal to the second sound pressure difference (SPL 3-SPL 4), the display apparatus 200 may further compare the sound pressure level values of the local speaker and the external speaker, which are both the left channel.

If the sound pressure judgment value (SPL 1) of the local loudspeaker is greater than the sound pressure judgment value (SPL 3) of the external loudspeaker, namely the sound intensity of the left local loudspeaker is higher than that of the left external loudspeaker, the local loudspeaker can be set as a surrounding path, and the external loudspeaker is set as a front path; similarly, if the sound pressure determination value (SPL 1) of the local speaker is smaller than the sound pressure determination value (SPL 3) of the external speaker, the local speaker may be set as the front path and the external speaker may be set as the surround path.

According to the above technical solution, the display device 200 may obtain the sound pressure level value of each speaker by detecting the measurement result signal, and indirectly detect the distance between the speakers through the sound pressure level value difference, so as to achieve the purpose of positioning the speakers. The positioning mode can reduce the influence of the setting position of the sound collector on the positioning precision, so that a user can flexibly set the position of the sound collector, and the positioning precision is improved.

Since the display device 200 has provided the corresponding voice control logic and menus prior to the fusion of the voice systems, and the voice control logic and menus are all directed to the native audio system of the display device 200. Whereas after sound fusion the control logic and menus should be for the entire audio system after fusion. Moreover, as the merged audio system, no matter the control operation of the display device 200 or the control operation of the external device 500, such as volume control and sound effect mode, should be simultaneously applied to the display device 200 and the external device 500. For example, without audio fusion, the target speaker of the display device 200 control menu is the local speaker; after audio fusion, the target speakers should be automatically adjusted to be the local speakers and the external speakers. In this regard, in some embodiments, as shown in fig. 19, the display apparatus 200 may record an output path of the audio data after the step of setting the output path according to the speaker position. And acquiring a setting instruction which is input by a user and used for adjusting the audio parameters in real time. When the user inputs a setting instruction for adjusting the audio parameter, the display apparatus 200 may query a target speaker of the setting instruction according to the output path in response to the setting instruction. Wherein the target speaker is one or more combination of a local speaker and an external speaker. And finally, applying the audio parameters specified in the setting instruction to the target loudspeaker.

In order to implement the control after audio fusion, the display device 200 may be added with a judgment module, a task decomposition module and a communication module under a normal control logic. When receiving a setting instruction of a user, first, it is determined whether a sound effect fusion mode is present, and if not, sound effect control is directly performed on the display device 200, that is, the target speaker is the local speaker. If the system is in the sound effect fusion mode, the task decomposition module is started, and the task decomposition module decomposes the setting instruction according to the result of the output path configuration, so that a part of decomposed instructions are executed in the local system of the display device 200, and the other part of the decomposed instructions are executed by the external device 500.

For example, the user may control the display apparatus 200 to perform audio fusion by sequentially selecting "set-sound set-fuse audio system". The display device 200 bears sky sound and the external device 500 bears front, middle, and low tones according to the setting of the audio output path. When the user operates the menu to select the movie mode, the task decomposition module notifies the local system of the display device 200 to issue and execute the sound effect parameters for the sky sound channel, and notifies the external device 500 through the communication module to execute the sound effect parameters of the 3.1 sound channel. Similarly, when the external device 500 sends a setting instruction to the user, the setting instruction needs to be decomposed, and the display device 200 is notified to execute the corresponding sound effect parameters.

According to the audio playing method based on the position detection, as shown in fig. 20, in some embodiments of the present application, there is further provided a display device 200, including: display 260, local speakers, external device interface 240, sound collector, and controller 250. Wherein the display 260 is configured to display a user interface. The local speaker is configured to play audio data and test audio. The external device interface 240 is configured to connect to an external device 500, and the external device 500 includes at least one external speaker, which is also configured to play audio data and test audio. The sound collector is configured to detect a sound signal. The controller 250 is configured to perform the following program steps:

acquiring a control instruction which is input by a user and used for setting an output path;

responding to a control instruction, playing test audio through a local loudspeaker and an external loudspeaker, wherein the test audio comprises a plurality of audio signals, and each audio signal is output through an independent audio output channel;

receiving a measurement result signal acquired by a sound acquisition device aiming at a test audio;

the speaker position is located based on the measurement result signal, and an output path of the audio data is set according to the speaker position.

According to the technical solution, the display device 200 provided in the above embodiment can play the test audio through the local speaker and the external speaker respectively after the user inputs the control instruction for setting the audio output path, and collect the test result signal for the test audio through the sound collector, thereby positioning the position of each speaker according to the test result signal, and setting the output path of the audio data according to the speaker position. The display device 200 can output audio data through the local speaker and the external speaker at the same time, and set an output path adapted to the speaker position by detecting the speaker position, so that the audio output channel is matched with the speaker position, and the audio playing effect is improved.

The detailed description provided above is only a few examples under the general concept of the present application, and does not constitute a limitation to the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.

Claims (10)

1. A display device, comprising:

a display;

a local speaker configured to play audio data;

an external device interface configured to connect an external apparatus including at least one external speaker;

a sound collector configured to detect a sound signal;

a controller configured to:

acquiring a control instruction which is input by a user and used for setting an output path;

responding to the control instruction, playing test audio through the local loudspeaker and the external loudspeaker, wherein the test audio comprises a plurality of audio signals, and each audio signal is output through a separate audio output channel;

receiving a measurement result signal collected by the sound collector aiming at the test audio;

and positioning the position of a loudspeaker according to the measurement result signal, and setting an output path of the audio data according to the position of the loudspeaker.

2. The display device of claim 1, wherein the local speakers comprise a left local speaker and a right local speaker, the controller further configured to:

in the step of playing the test audio through the local loudspeaker and the external loudspeaker, controlling the display to display a first prompt interface, wherein the first prompt interface is used for prompting a user to arrange the sound collector at a position collinear with the left local loudspeaker and the right local loudspeaker;

receiving a first confirmation instruction input by a user based on the first prompt interface;

and after receiving the first confirmation instruction, sequentially playing the test audio through the left local loudspeaker and the right local loudspeaker.

3. The display device of claim 2, wherein the external speakers comprise a left external speaker and a right external speaker, and wherein the controller is further configured to:

controlling the display to display a second prompt interface, wherein the second prompt interface is used for prompting a user to set the sound collector at a position collinear with the left external loudspeaker and the right external loudspeaker;

receiving a second confirmation instruction input by the user based on the second prompt interface;

and after the second confirmation instruction is received, the test audio is played through the left external loudspeaker and the right external loudspeaker in sequence.

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

in the step of receiving the measurement result signal collected by the sound collector aiming at the test audio, obtaining a sound signal through the sound collector;

comparing a waveform of the sound signal with the test audio waveform;

and if the waveform of the sound signal is the same as the test audio waveform, marking the sound signal as the measurement result signal.

5. The display device of claim 4, wherein the controller is further configured to:

in the step of positioning the position of the loudspeaker according to the measurement result signal, acquiring the acquisition time of the measurement result signal and the playing time of the test audio;

calculating the time difference between the acquisition time and the playing time;

and calculating the distance between the sound collector and each local loudspeaker and the external loudspeaker according to the time difference.

6. The display device of claim 1, wherein the controller is further configured to:

in the step of locating the position of the loudspeaker from the measurement result signal, detecting the energy density and/or the signal average amplitude of the measurement result signal;

calculating the sound pressure level value of each audio output channel according to the energy density and/or the signal average amplitude;

and calculating relative position data of each loudspeaker according to the sound pressure level value so as to set an output path of the audio data according to the relative position data.

7. The display device of claim 6, wherein the controller is further configured to:

in the step of setting the output path of the audio data according to the relative position data, calculating a first sound pressure difference and a second sound pressure difference according to the sound pressure level value of each audio output channel, wherein the first sound pressure difference is equal to the difference value of the sound pressure level values between the local speakers; the second sound pressure difference is equal to the difference value of sound pressure values between the external loudspeakers;

if the first sound pressure difference is smaller than the second sound pressure difference, setting the local loudspeaker as a front path and setting the external loudspeaker as a surrounding path;

and if the first sound pressure difference is larger than the second sound pressure difference, setting the local loudspeaker as a surrounding path and setting the external loudspeaker as a front path.

8. The display device of claim 7, wherein if the first sound pressure difference is equal to the second sound pressure difference, the controller is further configured to:

acquiring a sound pressure judgment value, wherein the sound pressure judgment value is the sound pressure level value of the local loudspeaker and the external loudspeaker under the same side output channel;

if the sound pressure judgment value of the local loudspeaker is larger than the sound pressure judgment value of the external loudspeaker, setting the local loudspeaker as a surrounding path and setting the external loudspeaker as a front path;

and if the sound pressure judgment value of the local loudspeaker is smaller than that of the external loudspeaker, setting the local loudspeaker as a front path and setting the external loudspeaker as a surrounding path.

9. The display device of claim 1, wherein the controller is further configured to:

recording an output path of the audio data after the step of setting the output path according to the speaker position;

acquiring a setting instruction which is input by a user and used for adjusting audio parameters;

responding to the setting instruction, inquiring a target loudspeaker of the setting instruction according to the output path, wherein the target loudspeaker is one or more combinations of the local loudspeaker and the external loudspeaker;

applying the audio parameters specified in the setup instructions to the target speaker.

10. The audio playing method based on the position detection is characterized by being applied to display equipment, wherein the display equipment comprises a display, a local loudspeaker, an external device interface, a sound collector and a controller, and the display equipment is connected with external equipment through the external device interface; the external equipment comprises at least one external loudspeaker; the audio playing method comprises the following steps:

acquiring a control instruction which is input by a user and used for setting an output path;

responding to the control instruction, playing test audio through the local loudspeaker and the external loudspeaker, wherein the test audio comprises a plurality of audio signals, and each audio signal is output through a separate audio output channel;

receiving a measurement result signal collected by the sound collector aiming at the test audio;

and positioning the position of a loudspeaker according to the measurement result signal, and setting an output path of the audio data according to the position of the loudspeaker.

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