Sound field control method, apparatus, device and computer-readable recording medium

Abstract

The present invention provides a sound field control method, apparatus, device and computer-readable recording medium. A target sound field parameter is obtained, a control parameter of a sound generating device is calculated according to the target sound field parameter, and an operation of the sound generating device is controlled based on the control parameter. According to the technical solution of the present invention, a reasonable target sound field parameter is set, and each sound generating unit of the sound generating device is controlled to cooperate with each other based on the target sound field parameter, thereby realizing the division control of the sound field. Thus, the sound emitted by the sound generating device can form a required sound field in each target area, and simultaneously meet the voice signal receiving requirements of multiple target users in different areas.

Description

[Technical field]

[0001] The present invention relates to the technical field of audiology, and in particular to a sound field control method, apparatus, device and computer readable recording medium. [Background technology]

[0002] A sound field is a region in which sound waves exist within a medium, and a sound field is formed around it when sound waves emitted from a sound generating device propagate to the surroundings. Physical quantities that describe a sound field include sound intensity, sound pressure, and particle vibration speed.

[0003] At present, general audio devices can only form a fixed sound field during operation. For an audio device with multiple audio units, when the multiple audio units work simultaneously, the formed overlapping sound field will produce a strengthening or weakening effect in different sound fields. When a sound generating device provides sounds to multiple users at the same time, the multiple users may be in different spatial positions, so that even if different users listen to the same sound, the intensity of the sound will be different. It is not possible to form a sound field with a specific intensity in a specific area according to the actual needs of the user. Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a sound field control method, apparatus, device, and computer-readable recording medium that can solve the problem that it is difficult to divide and control a sound field generated by an audio signal output in the prior art. [Means for solving the problem]

[0005] A first embodiment of the present invention provides a sound field control method applicable to electronic equipment, the electronic equipment including a sound generating device, the sound field control method including the steps of acquiring target sound field parameters, the target sound field parameters including audio feature parameters of a target area, calculating control parameters of the sound generating device based on the target sound field parameters, and controlling an operation of the sound generating device based on the control parameters.

[0006] A second embodiment of the present invention provides a sound field control device applicable to electronic equipment, the electronic equipment comprising a sound generating device, the sound field control device comprising an acquisition module, a calculation module and a control module, the acquisition module is used to acquire target sound field parameters, the target sound field parameters including audio feature parameters of a target area, the calculation module is used to calculate control parameters of the sound generating device based on the target sound field parameters, and the control module is used to control the operation of the sound generating device according to the control parameters.

[0007] A third embodiment of the present invention is an electronic device comprising a sound generating device, a processing unit and a recording unit, the processing unit is used to execute a computer program stored in the recording unit, When the processing unit executes the computer program, an electronic device is provided that executes each step included in the sound field control method according to the first embodiment of the present invention.

[0008] A fourth embodiment of the present invention provides a computer-readable recording medium storing a computer program, which, when executed by a processing unit, executes each step included in the sound field control method of the first embodiment of the present invention described above. Effect of the Invention

[0009] As described above, according to the sound field control method, apparatus, device and computer-readable recording medium provided by the embodiments of the present invention, the target sound field parameters can be obtained, the control parameters of the sound generating device can be calculated according to the target sound field parameters, and the operation of the sound generating device can be controlled based on the control parameters. According to the technical solution of the present invention, a reasonable target sound field parameter is set, and each sound generating unit of the sound generating device is controlled to cooperate with each other based on the target sound field parameter, thereby realizing the division control of the sound field. Thus, the sound emitted by the sound generating device can form a desired sound field in each target area, and simultaneously meet the audio signal receiving requirements of multiple target users in different areas. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a schematic flow chart of a sound field control method provided by a first embodiment of the present invention. [Diagram 2] FIG. 1 is a schematic diagram of the principle of a sound generating device provided by a first embodiment of the present invention. [Diagram 3] FIG. 11 is a detailed flowchart of a sound field control method provided by a second embodiment of the present invention. [Figure 4] FIG. 11 is a schematic diagram of a program module of a sound field control device provided by a third embodiment of the present invention. [Diagram 5] FIG. 11 is a structural schematic diagram of an electronic device provided according to a fourth embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] In order to make the objectives, features and advantages of the present invention clearer and easier to understand, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below are only some of the embodiments of the present invention, and are not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

[0012] In describing the embodiments of the present invention, the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "longitudinal," "horizontal," "upper," "lower," "inner," "outer," and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are descriptions used for convenience in describing the embodiments of the present invention, but do not imply that a device or component must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and are not intended to limit the present invention.

[0013] Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or designating a quantity of technical features. Thus, features defined as "first" and "second" can include one or more of these features. Also, in the description of embodiments of the present invention, "plurality" means two or more, unless otherwise specified.

[0014] In the embodiments of the present invention, the terms "installed", "connected", "coupled" and "fixed" should be interpreted in a broad sense unless otherwise clearly specified and limited. For example, they can be interpreted as a fixed connection, a removable connection, or an integral connection. They can also be interpreted as a mechanical connection, an electrical connection, a direct connection or an indirect connection through other configurations, an internal communication between two configurations, or an interaction relationship between two configurations. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present invention according to specific circumstances.

[0015] In order to solve the problem in the prior art that the sound field generated by the audio signal output by the sound generating device cannot be divided and controlled according to the user's needs, the first embodiment of the present invention provides a sound field control method applied to an electronic device. The electronic device includes a sound generating device. Figure 1 is a schematic flow chart diagram of the sound field control method provided by this embodiment. The sound field control method includes the following steps:

[0016] Step 101: Obtain the target sound field parameters.

[0017] Specifically, the target sound field parameters include sound feature parameters in the target area, which are preset parameters such as sound intensity, sound pressure, sound field ratio, etc. In some other examples of this embodiment, the target sound field parameters may be fixed parameters, variable parameters, or transfer functions used to characterize the sound field characteristics.

[0018] In one example of this embodiment, the step of acquiring the above-mentioned target sound field parameters includes a step of monitoring the function usage state of the electronic equipment in real time, and when it is detected that the function usage state has been switched, determining the corresponding target sound field parameters according to the switched target function usage state.

[0019] Specifically, when the electronic device is in operation, it can output an audio signal using an earphone or a speaker. The function use state includes a speaker function use state and an earphone function use state. Different target sound field parameters are set corresponding to different function use states, and when it is detected that the function use state is switched, the target sound field parameters corresponding to the target function use state are obtained, and the corresponding sound generating device forms a required sound field in the target area. The audio signal can be any audio signal, such as a voice signal or a music signal.

[0020] In another embodiment of the present embodiment, the controllable area of ​​the electronic device includes a plurality of preset areas, and the step of obtaining the above-mentioned target sound field parameters includes the steps of obtaining position information of a target user, determining a target area from the plurality of preset areas according to the position information, and determining the target sound field parameters according to a target control point corresponding to the target area.

[0021] Specifically, the controllable area of ​​the electronic device refers to an area in which the electronic device can control the sound field. In this embodiment, the target user is located within the controllable area of ​​the electronic device, and there may be one or more target users. The controllable area of ​​the electronic device is divided into a plurality of predefined areas in advance. Based on the position information of the target user, it can be determined in which predefined area the target user is located, and then the predefined area in which the target user is located is determined as the target area. In addition, in one embodiment of this embodiment, when the target user is in an area where the common boundary of two adjacent areas is located, both of the corresponding two adjacent areas are determined as the target area. Each predefined area in this embodiment corresponds to a control point, and after the target area is determined, the corresponding target control parameter can be determined according to the target control point corresponding to each target area.

[0022] In another example of this embodiment, the target users include a first target user and a second target user, and the target regions include an acceptable perception region corresponding to the first target user and a sound field cancellation region corresponding to the second target user. The step of determining the target sound field parameters based on the target control points corresponding to the target regions includes the steps of determining a sound field enhancement feature parameter corresponding to the target output sound signal based on the first target control points corresponding to the acceptable perception region, and determining a sound field cancellation feature parameter corresponding to the sound field cancellation sound wave based on the second target control points corresponding to the sound field cancellation region. Here, the sound field enhancement feature parameter and the sound field cancellation feature parameter constitute the target sound field parameters.

[0023] Specifically, for privacy and security, in some embodiments of the present embodiment, a sound generating device with multiple sound generating units is used to control the sound field, so that when the sound generating device is operating, some users can receive the output sound signal, and other users except for the users cannot receive the sound signal. First, a target sound field parameter consisting of a sound field enhancement feature parameter and a sound field cancellation feature parameter is obtained, and corresponding control parameters are calculated based on the target sound field parameter, and the sound signals output from the multiple sound generating units are superimposed on each other in the allowable perception area according to the control parameters to form a sound field, and are controlled to cancel each other in the sound field cancellation area, thereby achieving the purpose of sound field control. In the present embodiment, the first target user is a target user who can receive the sound signal output from the sound generating device, and the second target user is a target user who does not receive or does not need to receive the sound signal. After determining the sound field enhancement feature parameter in the target area corresponding to the first target user and the sound field cancellation feature parameter in the target area corresponding to the first target user, the control parameter in the target area is calculated based on the sound field enhancement feature parameter and the sound field cancellation feature parameter to control the operation of the sound generating device. This allows a first target user who needs to receive the audio signal to receive the audio signal output from the sound generating device, while a second target user who does not want to receive or does not need to receive the audio signal cannot perceive the audio signal output from the sound generating device.

[0024] Step 102: Calculate the control parameters of the sound generating device according to the target sound field parameters.

[0025] Specifically, after obtaining the target sound field parameters, the present embodiment can calculate the control parameters of the sound generating device through a time domain system or a frequency domain system. The sound generating device in this embodiment is a sound generating device on a device such as a mobile phone or a smart earphone.

[0026] In one embodiment of this embodiment, the sound generating device includes one or more sound generating units. The control parameters include target control parameters of each sound generating unit. The step of calculating the control parameters of the sound generating device based on the above-mentioned target sound field parameters includes inputting the target sound field parameters into a preset calculation formula according to a preset constraint to find an optimal solution, and obtaining the target control parameters of the target sound generating units in the sound generating device. The calculation formula is expressed by the following formula: JPEG2025501800000002.jpg41165

[0027] Furthermore, in one example of this embodiment, the step of inputting the target sound field parameters into a preset calculation formula to find an optimal solution and obtaining the target control parameters of the target sound generating unit of the sound generating device in accordance with the above-mentioned preset constraints includes the steps of inputting the target sound field parameters into the preset calculation formula to perform a calculation, finding multiple function values, setting the minimum function value of the target function as a constraint condition, and determining the control parameter corresponding to the minimum function value as the target control parameter of the target sound generating unit of the sound generating device.

[0028] Specifically, a plurality of control parameters are preset for each sound generating unit within the adjustment range of the amplitude value of the sound generating device. Taking the process of finding the optimal solution of the target control parameter of one of the units as an example, each control parameter corresponding to the sound generating unit can be input into a preset calculation formula to perform calculations and find the target function value of each control parameter. Among the found target function values, the control parameter corresponding to the target function value with the smallest numerical value is determined as the target control parameter of the sound generating unit.

[0029] Step 103: Control the operation of the sound generating device based on the control parameter.

[0030] Specifically, when the sound generating device is in operation, the operation of each sound generating unit is controlled according to the target control parameters corresponding to each sound generating unit to form a desired sound field in the target area.

[0031] In one embodiment of this embodiment, after the step of controlling the operation of the sound generating device according to the control parameters, the method further includes a step of collecting actual sound field parameters of each target control point, thereby calculating a difference evaluation index between each actual sound field parameter and a corresponding target sound field parameter, comparing the difference evaluation index with a preset threshold value, and adjusting the control parameters according to the difference evaluation index when the difference evaluation index is equal to or greater than the preset threshold value, and controlling the operation of the sound generating device according to the adjusted control parameters.

[0032] Specifically, the electronic device further includes a monitoring module. The monitoring module can collect the actual sound field parameters of the target control point. FIG. 2 is a schematic diagram of the principle of the sound generating device provided by the first embodiment of the present invention. The target control point is a control point at any angle around the device, and can be determined based on the position information of the target user. For example, taking one target control point as an example, if the difference evaluation index between the actual sound field parameter and the corresponding target sound field parameter is equal to or greater than a preset threshold (i.e., the difference between the actual sound field parameter and the corresponding target sound field parameter is large), the control parameter needs to be adjusted according to the difference evaluation index. Then, the operation of the sound generating device is controlled based on the adjusted control parameter, and the sound signal output by the sound generating device forms a desired sound field in the target area.

[0033] According to the above-mentioned technical solution of the embodiment of the present invention, the target sound field parameters can be obtained, the control parameters of the sound generating device can be calculated according to the target sound field parameters, and the operation of the sound generating device can be controlled according to the control parameters. According to the technical solution of the present invention, a reasonable target sound field parameter can be set, and the sound generating units of the sound generating device can be controlled to cooperate with each other according to the target sound field parameters, thereby realizing the division control of the sound field. Thus, the sound emitted by the sound generating device can form a desired sound field in each target area, and can simultaneously meet the voice signal receiving requirements of multiple target users in different areas.

[0034] The method shown in Figure 3 is a detailed method provided by the second embodiment of the present invention. The sound field control method is applied to an electronic device, which includes a sound generating device. The sound field control method includes the following steps:

[0035] Step 301: Obtain location information of a target user.

[0036] Step 302: determining a corresponding target area from a plurality of preset areas of the electronic device according to the location information.

[0037] Specifically, the target user is located within a controllable area of ​​the electronic device, and the controllable area of ​​the electronic device includes a number of preset areas. The preset area in which the target user is located is determined according to the location information of the target user, and the preset area in which the target user is located is determined as the target area.

[0038] Step 303: Determine target sound field parameters according to the target control points corresponding to the target region.

[0039] Step 304: The target sound field parameters are input into a preset calculation formula to perform calculations and obtain a number of function values.

[0040] Specifically, the preset calculation formula is expressed by the following formula. JPEG2025501800000003.jpg42165

[0041] Step 305: The minimum function value of the objective function is set as a constraint condition, and the control parameter corresponding to the minimum function value is determined as the target control parameter of the target sound generating unit of the sound generating device.

[0042] Step 306: Control the operation of the sound generating device based on the control parameter.

[0043] According to the above-mentioned embodiment, a target area that needs sound field control is determined according to the position information of a target user, and a target sound field parameter of the target area is obtained. A control parameter of a sound generating device is calculated according to the target sound field parameter, and the operation of the sound generating device is controlled based on the control parameter. This realizes the division control of the sound field, and further optimizes the user's audio experience.

[0044] Note that the order of each step in this embodiment does not mean the order in which the steps are executed, and the order in which each step is executed should be determined by their functions and internal logic, and is not limited to the embodiments of the present invention.

[0045] 4 is a diagram showing a sound field control device provided by a third embodiment of the present invention. The sound field control device is applied to an electronic device, and the electronic device includes a sound generating device. The sound field control device can be applied to the above-mentioned sound field control method. As shown in FIG. 4, the sound field control device has the following configuration.

[0046] Acquisition module 401: used to acquire target sound field parameters, which include audio feature parameters of a target region.

[0047] A calculation module 402: Calculates the control parameters of the sound generating device according to the target sound field parameters.

[0048] Control module 403: Controls the operation of the sound generating device according to the control parameters.

[0049] In some implementations of the present embodiment, the acquisition module is used to monitor the function usage state of the electronic device in real time, and when it is detected that the function usage state is switched, it determines the corresponding target sound field parameters according to the switched target function usage state.

[0050] In another embodiment of the present embodiment, the controllable area of ​​the electronic device includes a plurality of preset areas. The acquisition module is used to acquire location information of a target user. According to the location information, a corresponding target area is determined from the plurality of preset areas, and according to the target control point of the corresponding target area, a target sound field parameter is determined.

[0051] In another embodiment of this embodiment, the target users include a first target user and a second target user, and the target regions include an acceptable perception region corresponding to the first target user and a sound field cancellation region corresponding to the second target user. When the acquisition module executes the function of the target sound field parameters according to the target control points corresponding to the target regions, the acquisition module is used for determining a sound field enhancement feature parameter corresponding to the target output sound signal according to the first target control points corresponding to the acceptable perception region, and determining a sound field cancellation feature parameter corresponding to the sound field cancellation sound wave according to the second target control points corresponding to the sound field cancellation region. Here, the sound field enhancement feature parameter and the sound field cancellation feature parameter constitute the target sound field parameters.

[0052] In some implementations of this embodiment, the sound generating device includes one or more sound generating units, and the control parameters include target control parameters of each sound generating unit. The calculation module is used to input the target sound field parameters into a preset calculation formula to obtain an optimal solution according to preset constraints, and obtain the target control parameters of the target sound generating unit of the sound generating device. The calculation formula is expressed by the following formula: JPEG2025501800000004.jpg41165

[0053] Furthermore, in some examples of this embodiment, the calculation module is used to input the target sound field parameters into a predetermined calculation formula according to predetermined constraints to obtain an optimal solution, and when performing the function of the target control parameter of the target sound generating unit of the sound generating device, input the target sound field parameters into the predetermined calculation formula to perform calculations to obtain multiple function values, set the minimum function value of the target function as the constraint condition, and set the control parameter corresponding to the minimum function value as the target control parameter of the target sound generating unit of the sound generating device.

[0054] In some embodiments of the present embodiment, the sound field control device further includes an adjustment module, which, after controlling the operation of the sound generating device according to the control parameters, collects actual sound field parameters of each target control point, calculates a difference evaluation index between each actual sound field parameter and the corresponding target sound field parameter, and compares the difference evaluation index with a preset threshold value, and adjusts the control parameters according to the difference evaluation index if the difference evaluation index is equal to or greater than the preset threshold value, thereby controlling the operation of the sound generating device according to the adjusted control parameters.

[0055] According to the above technical solution of the embodiment of the present invention, the target sound field parameters are obtained, the control parameters of the sound generating device are calculated according to the target sound field parameters, and the operation of the sound generating device is controlled according to the control parameters. According to the present invention, the reasonable target sound field parameters are set, and the sound generating units in the sound generating device are controlled to cooperate with each other according to the target sound field parameters, so that the sound field division control can be realized, and the sound emitted by the sound generating device can form the required sound field in each target area, and the voice signal receiving requirements of multiple target users in different areas can be simultaneously met.

[0056] 5 shows an electronic device provided by the fourth embodiment of the present invention. The electronic device can realize the sound field control method in the above-mentioned embodiment, and specifically includes a sound generating device 501, a recording unit 502, a processing unit 503, and a computer program 504 stored in the recording unit 502 and executed by the processing unit 503, and the recording unit 502 and the processing unit 503 are electrically connected. When the processing unit 503 executes the computer program 504, the method of the above-mentioned embodiment 1 or 2 can be realized. The number of processing units may be one or more.

[0057] The recording unit 502 may be, for example, a high-speed random access memory (RAM) recording unit such as a disk memory, or may be a non-volatile memory recording unit. The recording unit 502 is used to store executable program code, and the processing unit 503 is electrically connected to the recording unit 502.

[0058] Furthermore, an embodiment of the present invention provides a computer-readable recording medium, which can be installed in the above-mentioned electronic device, and the computer-readable recording medium can be the recording unit of the embodiment shown in FIG. 5 above.

[0059] When a computer program is stored in the computer-readable recording medium and the program is executed by the processor, the sound field control method of the above-mentioned embodiment can be realized. Furthermore, the computer-readable recording medium may be other media capable of recording program code, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a RAM, a magnetic disk, or an optical disk.

[0060] In some embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above device embodiments are merely examples, and for example, the division of modules is merely a logical division of functions, and in actual implementation, other division methods may be used, for example, multiple modules or components may be combined or integrated, or may be integrated into other systems. Furthermore, some may not function or may not be implemented. The described electrical connections may be direct connections, communication connections, or indirect connections through some interfaces, devices, or modules. The connections may also be electrical, mechanical, or other forms.

[0061] Modules described as separate components may or may not be physically separated. Also, components shown as modules may or may not be physical modules, and may be located in one place or distributed across multiple network modules. Depending on actual needs, some or all of the modules may be used to achieve the objectives of the solutions of this embodiment.

[0062] Furthermore, each functional module in each embodiment of the present invention may be integrated into one processing module, each module may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated module can be implemented in the form of hardware or in the form of a software functional module.

[0063] When the integrated module is realized in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable recording medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product, and the computer software product is a readable memory medium storing some programs for making a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method in various embodiments of the present invention. The above-mentioned readable recording medium includes various media capable of recording program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, an optical disk, etc.

[0064] Although the embodiments of the above-described methods are depicted as a combination of a series of operations for ease of explanation, those skilled in the art should understand that the present invention is not limited by the described sequence of operations, because certain steps can be performed in other orders or simultaneously, according to the present invention. Those skilled in the art should also understand that the embodiments described herein are merely preferred embodiments, and the described operations and modules are not necessarily required for the present invention.

[0065] In the above-mentioned embodiments, the description of each embodiment has its own emphasis, and for the parts not described in detail in a specific embodiment, reference can be made to the relevant descriptions of other embodiments.

[0066] The above is a description of the sound field control method, device, equipment, and readable recording medium provided by the present invention, and those skilled in the art may make modifications and improvements from the embodiments of the present invention. Furthermore, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A sound field control method for an electronic device, the electronic device including a sound generating device, the sound field control method comprising: acquiring a target sound field parameter, the target sound field parameter including a sound feature parameter of a target area; calculating control parameters of the sound generating device based on the target sound field parameters; and controlling an operation of the sound generating device based on the control parameters.

2. The sound field control method according to claim 1, characterized in that the step of acquiring the target sound field parameters includes the steps of: monitoring a function usage state of the electronic equipment in real time; and, when it is detected that the function usage state has been switched, determining the corresponding target sound field parameters according to the switched target function usage state.

3. The controllable area of ​​the electronic device includes a plurality of predefined areas; The sound field control method according to claim 1, characterized in that the step of acquiring the target sound field parameters includes a step of acquiring position information of a target user, a step of determining the corresponding target area from a plurality of pre-set areas based on the position information, and a step of determining the target sound field parameters based on a target control point corresponding to the target area.

4. The sound field control method according to claim 3, characterized in that the target users include a first target user and a second target user, the target area includes an allowable perception area corresponding to the first target user and a sound field cancellation area corresponding to the second target user, and the step of determining the target sound field parameters based on the target control points corresponding to the target areas includes a step of determining a sound field enhancement feature parameter corresponding to a target output sound signal according to a first target control point corresponding to the allowable perception area, and a step of determining a sound field cancellation feature parameter corresponding to a sound field cancellation sound wave according to a second target control point corresponding to the sound field cancellation area, and the sound field enhancement feature parameter and the sound field cancellation feature parameter constitute the target sound field parameters.

5. The sound field control method according to claim 3, characterized in that the sound generating device comprises one or more sound generating units, the control parameters include the target control parameters of each of the sound generating units, and the step of calculating the control parameters of the sound generating device based on the target sound field parameters includes a step of inputting the target sound field parameters into a predetermined calculation formula in accordance with predetermined constraints to find an optimal solution and obtain the target control parameters of the target sound generating unit of the sound generating device, the calculation formula being expressed by the following formula:

6. The sound field control method according to claim 5, characterized in that the step of inputting the target sound field parameters into a predetermined calculation formula to find an optimal solution and obtaining the target control parameters of the target sound generating unit of the sound generating device in accordance with predetermined constraints includes the steps of inputting the target sound field parameters into a predetermined calculation formula to perform calculations and obtain a plurality of function values, and of setting a minimum function value of the target function as a constraint condition and determining a control parameter corresponding to the minimum function value as the target control parameter of the target sound generating unit of the sound generating device.

7. after the step of controlling the operation of the sound generating device based on the control parameters, 4. The sound field control method according to claim 3, further comprising the steps of: collecting actual sound field parameters of each of the target control points; calculating a difference evaluation index between each of the actual sound field parameters and the corresponding target sound field parameter; comparing the difference evaluation index with a preset threshold value; and, if the difference evaluation index is equal to or greater than the preset threshold value, adjusting the control parameter according to the difference evaluation index; and controlling the operation of the sound generating device based on the adjusted control parameter.

8. A sound field control device for an electronic device, the electronic device comprising a sound generating device, the sound field control device comprising: an acquisition module, a calculation module and a control module; The acquisition module is used for acquiring a target sound field parameter, and the target sound field parameter includes a sound feature parameter of a target area; the computing module is used to calculate control parameters of the sound generating device based on the target sound field parameters; The sound field control device, characterized in that the control module is used to control an operation of the sound generating device in accordance with the control parameters.

9. An electronic device comprising a sound generating device, a processing unit and a recording unit, the processing unit is used to execute a computer program stored in the recording unit, When the processing unit executes the computer program, the electronic device executes the steps included in the method according to any one of claims 1 to 7.

10. A computer-readable recording medium storing a computer program, the computer-readable recording medium being characterized in that, when the computer program is executed by a processing unit, the computer-readable recording medium executes the steps included in the method according to any one of claims 1 to 7.

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