An audio control method, device, equipment and medium of a vehicle

Abstract

This application provides a method, apparatus, device, and medium for controlling the audio system of a vehicle. The method includes: determining a volume control reference position for at least one audio speaker within the vehicle based on the body characteristics of a passenger seated in the vehicle; determining control distances between the volume control reference position and the placement positions of each audio speaker within the vehicle; determining a volume adjustment ratio for each audio speaker based on its corresponding control distance; determining a target volume for each audio speaker in response to a multimedia playback signal, based on a volume reference value and the volume adjustment ratio of each audio speaker; and controlling each audio speaker to play multimedia at the target volume, so that the multimedia playback volume received at the volume control reference position in the vehicle serves as the volume reference value. This achieves the effect that multiple passengers in the vehicle can hear the same volume.

Description

Technical Field

[0001] This application relates to the field of automotive audio control technology, and more specifically, to a method, device, equipment, and medium for controlling the audio system of a vehicle. Background Technology

[0002] Currently, vehicle audio systems have become an essential feature of vehicles, and the sound quality of these systems has become a significant factor in vehicle sales.

[0003] However, due to the different installation locations of multiple speakers in a vehicle, passengers in different positions often experience different volumes of multimedia audio, and it is impossible to control the volume of multiple positions in the vehicle to the same level. This results in a poor multimedia listening experience for passengers and seriously affects their comfort when listening to multimedia while riding in a vehicle. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a vehicle audio control method, device, equipment and medium that can solve the problem in the prior art that it is impossible to control the volume of multiple locations in the vehicle to the same level, resulting in a poor experience for passengers listening to multimedia sound, by using the multimedia playback volume received at the volume control reference position in the vehicle as the volume reference value, so that multiple passengers in the vehicle can hear the same volume.

[0005] In a first aspect, embodiments of this application provide a vehicle audio control method, wherein at least one speaker is arranged at different locations within the vehicle. The method includes: determining a volume control reference position for the at least one speaker within the vehicle based on the body characteristics of a passenger sitting in the vehicle; determining control distances between the volume control reference position and the arrangement positions of each speaker within the vehicle; determining a volume adjustment ratio for each speaker based on the control distance corresponding to that speaker; determining a target volume for each speaker in response to a multimedia playback signal, based on a volume reference value and the volume adjustment ratio of each speaker; and controlling each speaker to play multimedia at the target volume, such that the playback volume of the multimedia received at the volume control reference position within the vehicle serves as the volume reference value.

[0006] Optionally, the vehicle is equipped with multiple seats and multiple cameras, each camera being used to capture images of at least one area where a seat is located. The method further includes: detecting whether each seat in the vehicle is occupied by a passenger; wherein the physical characteristics of the passenger occupying each seat are determined by: when a passenger is detected occupying a seat in the vehicle, acquiring the position information of the seat and determining a target camera corresponding to the position information of the seat, the target camera being one of the multiple cameras installed in the vehicle; controlling the target camera to capture a passenger image of the passenger occupying the seat; and determining the physical characteristics of the passenger based on the passenger image, the shooting angle of the target camera, and the installation position of the target camera.

[0007] Optionally, the method further includes: if it is detected that none of the seats in the vehicle are occupied, then determining whether at least one audio system in the vehicle is playing multimedia; if so, then controlling the audio system playing multimedia to stop playing.

[0008] Optionally, the step of determining the volume control reference position for the at least one audio device in the vehicle based on the body characteristics of the passengers sitting in the vehicle includes: determining whether the number of passengers sitting in the vehicle is greater than 1; if the number of passengers sitting in the vehicle is greater than 1, determining the position of the target body part of each passenger in the vehicle based on the body characteristics of each passenger; determining the volume control reference position for the at least one audio device in the vehicle based on the position of the target body part of each passenger, wherein the volume control reference position is at the same distance from the target body part of each passenger, and the sum of the distances from the volume control reference position to the target body part of each passenger is minimized.

[0009] Optionally, the method further includes: if the number of passengers in the vehicle is equal to 1, then determining the position of the passenger's target body part in the vehicle based on the passenger's body shape characteristics; and determining the position of the passenger's target body part in the vehicle as the volume control reference position for the at least one audio device in the vehicle.

[0010] Optionally, a microphone is installed in the vehicle for collecting audio within the vehicle. The method further includes: determining whether passengers are talking in the vehicle based on the audio; if passengers are talking, controlling each speaker to play multimedia at a volume lower than a target volume so that the talking passengers are not affected by the multimedia playback; and controlling each speaker to play multimedia at the target volume when the passengers stop talking.

[0011] Optionally, the method further includes: identifying the passenger's facial information based on the passenger image to determine whether the passenger's facial information matches pre-stored facial information, wherein the pre-stored facial information is the facial information of historical passengers of the vehicle, and the historical passengers are passengers who have previously ridden in the vehicle; if the passenger's facial information matches the pre-stored facial information, then determining the multimedia playback sound effect corresponding to the pre-stored facial information as the target sound effect, wherein the multimedia playback sound effect corresponding to the pre-stored facial information is the sound effect selected by the passenger corresponding to the pre-stored facial information when playing multimedia in the most recent ride in the vehicle; if the passenger's facial information does not match the pre-stored facial information, then determining the sound effect selected when playing multimedia in the last time as the target sound effect; and controlling each speaker to play multimedia with the target sound effect.

[0012] Secondly, embodiments of this application also provide a vehicle audio control device in which at least one speaker is arranged at different locations within the vehicle, the device comprising:

[0013] The volume control reference position determination module is used to determine the volume control reference position for the at least one speaker in the vehicle based on the body characteristics of the passenger sitting in the vehicle.

[0014] The control distance determination module is used to determine the control distance between the volume control reference position and the placement position of each speaker in the vehicle.

[0015] The volume control ratio determination module is used to determine the volume control ratio for each speaker based on the control distance corresponding to that speaker.

[0016] The target volume determination module is used to determine the target volume of each speaker in response to the multimedia playback signal, based on the volume reference value and the volume control ratio of each speaker.

[0017] The audio control module is used to control each speaker to play multimedia at a target volume, so that the multimedia playback volume received at the volume control reference position in the vehicle is used as the volume reference value.

[0018] Thirdly, embodiments of this application also provide an electronic device, including: a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus. When the machine-readable instructions are executed by the processor, the steps of the vehicle audio control method described above are performed.

[0019] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a computer program that, when executed by a processor, performs the steps of the vehicle audio control method described above.

[0020] The vehicle audio control method, apparatus, device, and medium provided in this application can solve the problem in the prior art where the volume of multiple locations in the vehicle cannot be controlled at the same level, resulting in a poor audio listening experience for passengers, by using the multimedia playback volume received at the volume control reference position in the vehicle as a volume reference value. This achieves the effect that multiple passengers in the vehicle can hear the same volume. To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A flowchart illustrating a vehicle audio control method provided in an embodiment of this application;

[0023] Figure 2 A flowchart illustrating another vehicle audio control method provided in an embodiment of this application;

[0024] Figure 3 A schematic diagram of the structure of a vehicle audio control device provided in an embodiment of this application;

[0025] Figure 4 This application provides a schematic diagram of the structure of an electronic device. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. Based on the embodiments of this application, every other embodiment obtained by those skilled in the art without inventive effort falls within the scope of protection of this application.

[0027] First, the applicable scenarios for this application will be introduced. This application can be applied to the field of automotive audio control technology.

[0028] Research has found that due to the different installation locations of multiple speakers in a vehicle, passengers in different positions within the vehicle often experience different volumes of multimedia audio. Furthermore, it is impossible to control the volume at the same level across multiple locations, resulting in a poor multimedia listening experience and severely impacting passenger comfort while riding in the vehicle.

[0029] Based on this, the present application provides a vehicle audio control method, device, equipment and medium, which can solve the problem in the prior art that it is impossible to control the volume of multiple locations in the vehicle to the same level, resulting in a poor experience for passengers listening to multimedia sound, by using the multimedia playback volume received at the volume control reference position in the vehicle as the volume reference value, so that multiple passengers in the vehicle can hear the same volume.

[0030] Please see Figure 1 , Figure 1 This is a flowchart illustrating a vehicle audio control method provided in an embodiment of this application. Figure 1 As shown in the embodiment of this application, the vehicle audio control method includes:

[0031] S101. Determine the volume control reference position for the at least one audio device inside the vehicle based on the physical characteristics of the passenger sitting inside the vehicle.

[0032] The vehicle is equipped with multiple seats and multiple cameras, each camera is used to capture an image of the area where at least one seat is located, and the method further includes: detecting whether each seat in the vehicle is occupied by a passenger;

[0033] For details, please refer to Figure 2 , Figure 2A flowchart of another vehicle audio control method provided in this application embodiment is shown below. Figure 2 As shown, the physical characteristics of the passenger sitting in each seat can be determined in the following ways:

[0034] S201. When a passenger is detected sitting in a seat in a vehicle, the location information of the seat is obtained, and the target camera corresponding to the location information of the seat is determined.

[0035] The target camera is one of multiple cameras installed inside the vehicle.

[0036] S202, Control the target camera to capture passenger images of passengers sitting in the seats.

[0037] S203. Determine the physical characteristics of the passenger based on the passenger image, the shooting angle of the target camera, and the installation position of the target camera.

[0038] For example, the vehicle has two front seats and two rear seats. Two cameras are positioned in the middle of the front and rear seats. When a passenger is detected sitting in the left rear seat, the rear camera rotates to a first angle and captures an image of the passenger at that angle. At this time, the position of the left front wheel of the vehicle can be determined as the origin of the spatial coordinates. The coordinates of the left rear seat and the rear camera can then be obtained. Based on the coordinates of the left rear seat, the coordinates of the rear camera, and the first angle at which the rear camera captures the passenger image, the passenger's actual body shape can be determined according to the body shape characteristics of the rear passenger in the image.

[0039] Optionally, the method further includes: if it is detected that none of the seats in the vehicle are occupied, then determining whether at least one audio system in the vehicle is playing multimedia; if so, then controlling the audio system playing multimedia to stop playing.

[0040] In this way, the audio system automatically shuts off when no one is in the vehicle to conserve the vehicle's electrical energy.

[0041] Specifically, the step of determining the volume control reference position for the at least one audio device in the vehicle based on the body characteristics of the passengers sitting in the vehicle includes: determining whether the number of passengers sitting in the vehicle is greater than 1; if the number of passengers sitting in the vehicle is greater than 1, determining the position of the target body part of each passenger in the vehicle based on the body characteristics of each passenger; determining the volume control reference position for the at least one audio device in the vehicle based on the position of the target body part of each passenger, wherein the volume control reference position is at the same distance from the target body part of each passenger, and the sum of the distances from the volume control reference position to the target body part of each passenger is minimized.

[0042] For example, when there are passengers in the left and right rear seats of the vehicle, the camera is controlled to capture passenger images of the two passengers, and the positions of target body parts of the two passengers are determined based on the passenger images, wherein the target body parts are the passengers' heads. The center point between the positions of the two passengers' heads can be determined as the volume control reference position.

[0043] Optionally, the method further includes: if the number of passengers in the vehicle is equal to 1, then determining the position of the passenger's target body part in the vehicle based on the passenger's body shape characteristics; and determining the position of the passenger's target body part in the vehicle as the volume control reference position for the at least one audio device in the vehicle.

[0044] For example, when a passenger is sitting in the left rear seat of the vehicle, the camera is controlled to capture a passenger image of the passenger, and the position of the target body part of the two passengers is determined based on the passenger image, wherein the target body part is the passenger's head, and the position of the passenger's head is determined as the volume control reference position of the at least one speaker.

[0045] S102. Determine the control distance between the volume control reference position and the arrangement position of each speaker in the vehicle.

[0046] After determining the volume control reference position, the control distance between the volume control reference position and the arrangement position of each speaker in the vehicle can be determined in a pre-set three-dimensional coordinate system.

[0047] S103. For each speaker, determine the volume control ratio for that speaker based on the control distance corresponding to that speaker.

[0048] For example, if there are four speakers in the vehicle, and the ratio of the control distance between the volume control reference position and the position of the four speakers in the vehicle is 0.8:1:1.2:1.4, then the volume control ratio of the four speakers is determined to be 0.8:1:1.2:1.4.

[0049] S104. In response to the multimedia playback signal, determine the target volume of each speaker based on the volume reference value and the volume control ratio of each speaker.

[0050] For example, when a passenger sets a volume reference value of 5 on the vehicle control display, the target volumes of the four speakers can be determined to be 4, 5, 6, and 7, respectively, based on the volume reference value and the volume control ratio of each speaker.

[0051] S105. Control each audio system to play multimedia at a target volume, so that the multimedia playback volume received at the volume control reference position in the vehicle is a volume reference value.

[0052] In this way, when controlling each speaker to play multimedia at the target volume, the multimedia playback volume received at the volume control reference position in the vehicle can be used as a volume reference value, thereby ensuring that passengers at the same distance from the volume control reference position can receive the same volume.

[0053] Optionally, a microphone is installed in the vehicle for collecting audio within the vehicle. The method further includes: determining whether passengers are talking in the vehicle based on the audio; if passengers are talking, controlling each speaker to play multimedia at a volume lower than a target volume so that the talking passengers are not affected by the multimedia playback; and controlling each speaker to play multimedia at the target volume when the passengers stop talking.

[0054] Specifically, the volume of multimedia playback on each speaker can be determined by pre-setting a target volume reduction ratio when passengers are talking in the vehicle; alternatively, the volume of passengers' conversation can be determined first, and the multimedia playback volume received at the volume control reference position in the vehicle can be set as the volume reference value for the passengers' conversation volume.

[0055] For example, the audio inside the vehicle acquired by the microphone can be decomposed, the sound of multimedia playback can be filtered out, the sound of passengers talking inside the vehicle can be obtained, and the volume of the passengers talking inside the vehicle can be determined based on the waveform of the sound of passengers talking inside the vehicle acquired by the microphone.

[0056] Optionally, the method further includes: identifying the passenger's facial information based on the passenger image; determining whether the passenger's facial information matches pre-stored facial information, wherein the pre-stored facial information is the facial information of historical passengers of the vehicle, and the historical passengers are passengers who have previously ridden in the vehicle; if the passenger's facial information matches the pre-stored facial information, then determining the multimedia playback sound effect corresponding to the pre-stored facial information as the target sound effect, wherein the multimedia playback sound effect corresponding to the pre-stored facial information is the sound effect selected by the passenger corresponding to the pre-stored facial information when playing multimedia in the most recent ride in the vehicle; if the passenger's facial information does not match the pre-stored facial information, then determining the sound effect selected when playing multimedia in the last ride as the target sound effect; and controlling each speaker to play multimedia with the target sound effect.

[0057] Specifically, a passenger information database can be created based on the facial information of historical passengers. This database includes the facial information of each passenger who has ridden in the vehicle, as well as the multimedia playback sound effect for that passenger's most recent ride. For example, passenger A might have used surround sound. Furthermore, when a passenger rides the vehicle again, the target sound effect selected by the passenger during their most recent multimedia ride is used. If the passenger changed the target sound effect on the vehicle control terminal, the target sound effect is updated and set as the passenger's target sound effect.

[0058] Based on the same inventive concept, this application also provides a vehicle audio control device corresponding to the vehicle audio control method. Since the principle of the device in this application is similar to the vehicle audio control method described above in this application, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be described again.

[0059] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of a vehicle audio control device provided in an embodiment of this application. Figure 3 As shown, at least one speaker is arranged at different locations within the vehicle, and the vehicle's audio control device 300 includes:

[0060] The volume control reference position determination module 301 is used to determine the volume control reference position for the at least one speaker in the vehicle based on the body characteristics of the passenger sitting in the vehicle.

[0061] The control distance determination module 302 is used to determine the control distance between the volume control reference position and the arrangement position of each speaker in the vehicle.

[0062] The volume control ratio determination module 303 is used to determine the volume control ratio for each speaker based on the control distance corresponding to that speaker.

[0063] The target volume determination module 304 is used to determine the target volume of each speaker in response to the multimedia playback signal, based on the volume reference value and the volume control ratio of each speaker.

[0064] The audio control module 305 is used to control each speaker to play multimedia at a target volume so that the playback volume of the multimedia received at the volume control reference position in the vehicle is a volume reference value.

[0065] The vehicle audio control device provided in this application embodiment can solve the problem in the prior art that it is impossible to control the volume of multiple locations in the vehicle to the same level, resulting in a poor experience for passengers listening to multimedia sounds, by using the multimedia playback volume received at the volume control reference position in the vehicle as the volume reference value, so that multiple passengers in the vehicle can hear the same volume.

[0066] Please see Figure 4 , Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 4 As shown, the electronic device 400 includes a processor 410, a memory 420, and a bus 430.

[0067] The memory 420 stores machine-readable instructions executable by the processor 410. When the electronic device 400 is running, the processor 410 communicates with the memory 420 via the bus 430. When the machine-readable instructions are executed by the processor 410, they can perform the operations described above. Figure 1 as well as Figure 2 The steps of the vehicle audio control method in the illustrated method embodiment can be found in the method embodiment for specific implementation, and will not be repeated here.

[0068] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can perform the above-described actions. Figure 1 as well as Figure 2 The steps of the vehicle audio control method in the illustrated method embodiment can be found in the method embodiment for specific implementation, and will not be repeated here.

[0069] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0070] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0071] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0072] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0073] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0074] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A sound control method of a vehicle, at least one sound, a plurality of seats, and a plurality of cameras being arranged at different positions in the vehicle, characterized by, The method comprises: For a seat in the vehicle on which a passenger is sitting, determining position information of the seat; For a seat in the vehicle on which a passenger is sitting, capturing a passenger image of the passenger by a camera corresponding to the seat; According to the passenger image, the shooting angle of the camera and the installation position of the camera, determining the head position of the passenger; According to the body feature of the passenger sitting in the vehicle, determining a volume control reference position in the vehicle for the at least one sound device, the volume control reference position being at the same distance from the head position of each passenger, and the sum of the distances from the volume control reference position to the head positions of each passenger being the smallest; Respectively determining the control distance between the volume control reference position and the arrangement position of each sound device in the vehicle; Calculating the ratio between the control distances corresponding to each sound device to determine the volume regulation ratio corresponding to each sound device; In response to a multimedia playing signal, determining the target volume of each sound device according to the product of the volume reference value and the volume regulation ratio of each sound device; Controlling each sound device to play multimedia at the target volume, so that the playing volume of the multimedia received at the volume control reference position in the vehicle is the volume reference value set by the user.

2. The method of claim 1, wherein, The vehicle is provided with a plurality of seats and a plurality of cameras, each camera being used to capture an image of the area where at least one seat is located, and the method further comprises: Detecting whether each seat in the vehicle has a passenger sitting on it; Wherein, the body feature of the passenger sitting on each seat is determined by the following way: When it is detected that a seat in the vehicle has a passenger sitting on it, obtaining the position information of the seat and determining a target camera corresponding to the position information of the seat, the target camera being one of the plurality of cameras provided in the vehicle; Controlling the target camera to capture a passenger image of the passenger sitting on the seat; According to the passenger image, the shooting angle of the target camera and the installation position of the target camera, determining the body feature of the passenger.

3. The method of claim 2, wherein, The method further comprises: If it is detected that none of the seats in the vehicle has a passenger sitting on it, determining whether at least one sound device in the vehicle is playing multimedia; If yes, controlling the sound device playing the multimedia to stop playing.

4. The method of claim 1, wherein, The step of determining the volume control reference position in the vehicle for the at least one sound device according to the body feature of the passenger sitting in the vehicle comprises: Determining whether the number of passengers sitting in the vehicle is greater than 1; If the number of passengers sitting in the vehicle is greater than 1, respectively determining the position of the target body part of each passenger in the vehicle according to the body feature of each passenger; According to the position of the target body part of each passenger in the vehicle, determining the volume control reference position in the vehicle for the at least one sound device.

5. The method of claim 4, wherein, The method further comprises: If the number of passengers sitting in the vehicle is equal to 1, determining the position of the target body part of the passenger in the vehicle according to the body feature of the passenger; Determining the position of the target body part of the passenger in the vehicle as the volume control reference position in the vehicle for the at least one sound device.

6. The method of claim 2, wherein, The vehicle is provided with a microphone for collecting audio in the vehicle, and the method further comprises: determine whether there is a passenger in the vehicle talking according to the audio; if there is a passenger in the vehicle talking, control each sound box to play multimedia at a volume lower than a target volume, so that the passenger in the vehicle talking is not affected by the multimedia playing, and control each sound box to play multimedia at the target volume when the passenger in the vehicle stops talking.

7. The method of claim 2, wherein, The method further comprises: identify facial information of the passenger according to the passenger image; determine whether the facial information of the passenger matches pre-stored facial information, the pre-stored facial information being facial information of a historical passenger of the vehicle, the historical passenger being a passenger who has previously taken the vehicle; if the facial information of the passenger matches the pre-stored facial information, determine a multimedia playing sound effect corresponding to the pre-stored facial information as the target sound effect, the multimedia playing sound effect corresponding to the pre-stored facial information being a sound effect selected by the passenger corresponding to the pre-stored facial information when the passenger played multimedia in the vehicle last time; if the facial information of the passenger does not match the pre-stored facial information, determine a sound effect selected when multimedia was played last time as the target sound effect; control each sound box to play multimedia at the target sound effect.

8. An audio control device of a vehicle, at least one audio, a plurality of seats, and a plurality of cameras being arranged at different positions in the vehicle, characterized by, The device comprises: a volume control reference position determination module configured to determine position information of a seat in the vehicle on which a passenger is sitting, capture a passenger image through a camera corresponding to the seat for the seat on which the passenger is sitting, and determine a head position of the passenger according to the passenger image, a shooting angle of the camera, and an installation position of the camera; determine a volume control reference position for the at least one sound box in the vehicle according to a body feature of the passenger in the vehicle, the body feature being used to indicate a target body part of the passenger, the volume control reference position being at a same distance from the target body part of each passenger, and the sum of distances from the volume control reference position to the target body part of each passenger being minimum; a control distance determination module configured to determine a control distance between the volume control reference position and an arrangement position of each sound box in the vehicle; a volume regulation ratio determination module configured to calculate a ratio between control distances corresponding to the sound boxes to determine a volume regulation ratio corresponding to each sound box; a target volume determination module configured to determine a target volume of each sound box according to a product between a volume reference value and the volume regulation ratio of each sound box in response to a multimedia playing signal; a sound box control module configured to control each sound box to play multimedia at the target volume, so that a playing volume of the multimedia received at the volume control reference position in the vehicle is a volume reference value set by a user.

9. An electronic device, comprising: comprise: a processor, a memory, and a bus, the memory storing machine readable instructions executable by the processor, the processor and the memory being in communication through the bus when the electronic device is running, the processor executing the machine readable instructions to perform steps of the method of any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, and the computer program is executed by the processor to perform steps of the method of any one of claims 1 to 7.

Images