A low-frequency enhancement design method, storage medium and device for irregular sound cavity

By processing the angle relationship and area data of the assembly surface of the passive radiator, selecting the appropriate passive radiator specifications and adjusting their selections to solve the problem of low frequency enhancement in irregular sound cavity, achieving low frequency improvement in sound quality and prevention of vibration of the whole machine .

CN119227418BActive Publication Date: 2025-02-14SHENZHEN ORANGE ELECTRONICS CO LTD
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Patent Information

Application Number
CN202411720798.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-02-14
Estimated Expiration
2044-11-28

AI Technical Summary

Technical Problem

In the speaker design of irregular sound cavity, it is difficult to achieve low frequency enhancement without losing the volume of the sound cavity. Especially in the embedded speaker design, the sound cavity shape is irregular, making it difficult to achieve symmetrical placement of passive radiators .

Method used

By establishing a model to process the initial angle relationship and initial assembly data of each assembly surface of the passive radiator, the final angle relationship and final area data of different assembly surfaces are obtained. The specifications of the passive radiator are selected based on these data and the selection is adjusted. Meets the resonant frequency requirements of irregular sound cavity.

Benefits of technology

Without losing the volume of the sound cavity, the low-frequency jitter in the cavity is minimized, and the need to improve the sound quality and prevent the whole machine from vibrating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application discloses a low-frequency enhancement design method, storage medium and device for an irregular sound cavity. The low-frequency enhancement design method for an irregular sound cavity of the present application processes the initial angle relationship and initial assembly data of each assembly surface of the passive radiator by establishing a model to obtain the final angle relationship and final area data of different assembly surfaces, obtains the assembly quality data of the passive radiator according to the final angle relationship and final area data, selects the specifications of the multiple passive radiators according to the final angle relationship, final area data and assembly quality data of the passive radiator, and then adjusts the selection specifications of the passive radiator according to whether the resonant frequency of the irregular sound cavity meets the requirements. The present application can minimize the low-frequency jitter of the cavity without losing the volume of the sound cavity, and can simultaneously meet the needs of improving the low-frequency sound quality and preventing the vibration of the whole machine. The design idea is simple and efficient.
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Description

Technical Field

[0001] The present invention mainly relates to the field of audio technology, and in particular to a low-frequency enhancement design method, storage medium and device for an irregular sound cavity. Background Art

[0002] In the prior art, when designing the cabinet of a speaker, in order to improve the low-frequency performance of the speaker, a bass reflex tube (Port) or a passive radiator (PR) design is added. For consumer electronic products, in order to obtain better low-frequency performance in a smaller volume, a passive radiator design is often adopted. However, the vibration amplitude of the passive radiator at low frequency is large, which will cause the low-frequency vibration of the speaker. In order to offset this vibration, passive radiators often appear in pairs and are placed symmetrically to offset the forces generated by each other. However, when designing an embedded speaker, the shape of the sound cavity is often irregular, and it is difficult to achieve symmetrical placement of the passive radiator. The current solution is generally to hollow out two assembly surfaces on the sound cavity on which the passive radiator can be symmetrically assembled. The defect of such a design is that it will cause a loss of sound cavity volume, thereby affecting the low-frequency performance, which is contrary to the original intention of the design.

[0003] Therefore, how to design a low-frequency enhancement method for irregular sound cavities is a technical problem to be solved. Summary of the invention

[0004] Based on this, it is necessary to provide a projection color adaptive correction method, device, storage medium and equipment to address the existing problems.

[0005] In a first aspect, an embodiment of the present application provides a method for designing low-frequency enhancement of a regular sound cavity, wherein the irregular sound cavity includes a loudspeaker and a plurality of passive radiators, and the method includes the following steps:

[0006] According to the overall structure of the irregular sound cavity, the sound cavity volume of the irregular sound cavity is obtained;

[0007] Selecting the loudspeaker according to the sound cavity volume of the irregular sound cavity;

[0008] According to the overall structure of the irregular sound cavity and the volume of the sound cavity, the initial assembly data of the plurality of passive radiators is determined, wherein the initial assembly data includes the total number of assembly surfaces of the irregular sound cavity. , initial assembly area data, the initial assembly area data including the initial assembly area corresponding to each assembly surface , … and the total initial assembly area ;

[0009] Determining whether the initial assembly data meets a first preset condition;

[0010] In response to the initial assembly data satisfying a first preset condition, mechanically processing and analyzing the initial assembly data to obtain first assembly data;

[0011] Obtaining, according to the first assembly data, a total assembly quality of the plurality of passive radiators;

[0012] According to the first assembly data and the total assembly quality, assembly quality data of the plurality of passive radiators is obtained, wherein the assembly quality data includes the assembly quality of each passive radiator. , … ;

[0013] selecting specifications of the plurality of passive radiators according to the first assembly data and the assembly quality data;

[0014] Determining whether the current resonance frequency of the irregular sound cavity meets a second preset condition;

[0015] In response to the current resonance frequency satisfying the second preset condition, the design of the irregular sound cavity is completed; otherwise, the above steps are repeated.

[0016] Preferably, the speaker is selected according to the sound cavity volume of the irregular sound cavity, including:

[0017] Select the speaker using formula (1) and formula (2);

[0018] Among them, formula (1) is expressed as:

[0019] ;

[0020] Among them, formula (2) is expressed as:

[0021] ;

[0022] in, is the volume of the irregular sound cavity, is the acoustic compliance equivalent volume of the loudspeaker, Design threshold , is the quality factor of the speaker.

[0023] Preferably, the first preset condition is expressed by the following formula (3):

[0024] ;

[0025] in, is the installation area of ​​the speaker, .

[0026] Preferably, mechanical processing and analysis are performed on the initial assembly data to obtain first assembly data, including:

[0027] Performing force analysis on all assembly surfaces of the plurality of passive radiators to determine a counteracting force surface, a counteracting resultant force surface, and angle data, wherein the angle data includes the angle of each counteracting force surface relative to the counteracting resultant force surface. , … ;

[0028] The angle data is processed according to formula (4) to obtain first assembly area data, which includes the middle assembly area of ​​each offset force surface: , … and the intermediate assembly area of ​​the offset force surface ;

[0029] Processing the first assembly area data according to formula (5) to obtain equivalent compliances of the plurality of passive radiators;

[0030] The first assembly area data and the equivalent compliances of the plurality of passive radiators constitute the first assembly data;

[0031] Among them, formula (4) is expressed as:

[0032] ;

[0033] in, is a constant greater than zero; formula (5) is expressed as:

[0034] ;

[0035] in, , … is the initial assembly area of ​​each offsetting force surface, is the equivalent compliance of the passive radiator, is the compliance of the speaker suspension structure, is the maximum compliance of the passive radiator, and the angle is obtained according to the following formula (6): The maximum value of:

[0036] ;

[0037] Among them, the middle assembly area of ​​the offset force surface It is expressed by the following formula (7):

[0038] .

[0039] Preferably, the overall assembly quality It is expressed by the following formula (8):

[0040] ;

[0041] in, is the air density, is the speed of sound in air, It is the initial resonant frequency when only the speaker is installed in the irregular sound cavity.

[0042] Preferably, the assembly quality of each passive radiator is , … It is expressed by the following formula (9):

[0043] .

[0044] Preferably, the second preset condition is expressed by the following formula (10):

[0045] ;

[0046] in, is the current resonant frequency of the irregular sound cavity, is the resonant frequency of the speaker.

[0047] In a second aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program is used to execute the above-mentioned method steps.

[0048] In a third aspect, an embodiment of the present application provides an electronic device, the electronic device comprising:

[0049] processor;

[0050] a memory for storing instructions executable by the processor;

[0051] The processor is used to read the executable instructions from the memory and execute the executable instructions to implement the above method steps.

[0052] Compared with the prior art, the present invention has the following beneficial effects: the irregular sound cavity low-frequency enhancement design method of the present application, through establishing a model to process the initial angle relationship and initial assembly data of each assembly surface of the passive radiator to obtain the final angle relationship and final area data of different assembly surfaces, obtains the assembly quality data of the passive radiator according to the final angle relationship and the final area data, selects the specifications of the multiple passive radiators according to the final angle relationship, final area data and assembly quality data of the passive radiator, and then adjusts the selection specifications of the passive radiator according to whether the resonant frequency of the irregular sound cavity meets the requirements. The present application can minimize the low-frequency jitter of the cavity without losing the volume of the sound cavity, and can simultaneously meet the needs of improving the low-frequency sound quality and preventing the vibration of the whole machine. The design idea is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] By referring to the following drawings, the exemplary embodiments of the present invention can be more completely understood. The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present invention and do not constitute a limitation of the present invention. In the drawings, the same reference numerals generally represent the same parts or steps.

[0054] Figure 1 A flowchart of a low-frequency enhancement design method for an irregular sound cavity provided according to an exemplary embodiment of the present application;

[0055] Figure 2 A schematic diagram of force analysis of an irregular sound cavity provided according to an exemplary embodiment of the present application;

[0056] Figure 3 A low-frequency cutoff frequency curve diagram of an irregular sound cavity provided by an exemplary embodiment of the present application is shown;

[0057] Figure 4 A schematic diagram of an electronic device provided by an exemplary embodiment of the present application is shown;

[0058] Figure 5 A schematic diagram of a computer-readable medium provided by an exemplary embodiment of the present application is shown. DETAILED DESCRIPTION

[0059] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0060] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0061] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0063] Example 1

[0064] An embodiment of the present application provides a low-frequency enhancement design method for an irregular sound cavity, which is described below in conjunction with the accompanying drawings.

[0065] Reference Figure 1 , which shows a low-frequency enhancement design method for an irregular sound cavity provided by some embodiments of the present application, and the method may include the following steps:

[0066] S101: Obtaining a sound cavity volume of the irregular sound cavity according to the overall structure of the irregular sound cavity;

[0067] Specifically, according to the overall structure of the sound cavity, the volume of the sound cavity is obtained by a volume calculation method. The volume calculation method is a prior art and will not be described in detail herein.

[0068] S102: selecting a loudspeaker according to the volume of the irregular sound cavity;

[0069] Specifically, confirm the speaker unit that is suitable for the cavity, and select the speaker by using formula (1) and formula (2);

[0070] Among them, formula (1) is expressed as:

[0071] ;

[0072] Among them, formula (2) is expressed as:

[0073] ;

[0074] in, is the volume of the irregular cavity, is the acoustic compliance equivalent volume of the loudspeaker, Design threshold , The quality factor of the speaker. Specifically, since the low-frequency attenuation frequency of small-sized speaker units is higher, the Q value has a greater impact on the low-frequency sound performance. When selecting the unit of the passive radiator, you should try to avoid selecting The low-frequency response of the speaker selected by condition 2 is relatively flat, thus avoiding the high Q value peak.

[0075] S103: Determine initial assembly data of multiple passive radiators based on the overall structure and volume of the irregular sound cavity, the initial assembly data including the total number of assembly surfaces of the irregular sound cavity , initial assembly area data, the initial assembly area data includes the initial assembly area corresponding to each assembly surface , , and the total initial assembly area ;

[0076] Specifically, the area data of the initial assembly is calculated according to the setting principle of the sound cavity, which is the existing technology and will not be described in detail here.

[0077] Reference Figure 2 In this example, S1 and S2 are the force-offsetting surfaces. The rule for defining this type of surface is that after force analysis, there are forces that can offset each other in a certain direction, that is, the two forces F11 and F21 can offset each other, that is, F11=-F12; the remaining F12 and F22 are forces that cannot be offset by themselves on the force-offsetting surface, so the force generated by the resultant force surface needs to be offset, so F3=-(F12+F22); this relationship gives two relationship equations for calculating the PR area. This embodiment is only illustrated with three passive radiators.

[0078] S104: Determine whether the initial assembly data meets a first preset condition;

[0079] Specifically, to ensure low-frequency performance, the total area of ​​the passive radiator should be more than twice the area of ​​the speaker unit during design. That is, the first preset condition is expressed by the following formula (3):

[0080] ;

[0081] in, is the effective installation area of ​​the speaker, .

[0082] S105: In response to the initial assembly data satisfying the first preset condition, mechanically processing and analyzing the initial assembly data to obtain first assembly data;

[0083] Specifically, step S105 includes:

[0084] S1051: Perform force analysis on all assembly surfaces of multiple passive radiators to determine the offset force surface, the offset resultant force surface and angle data. The angle data includes the angle of each offset force surface relative to the offset resultant force surface. , ;

[0085] S1052: Process the angle data according to formula (4) to obtain first assembly area data, which includes the middle assembly area of ​​each offset force surface. , and the intermediate assembly area of ​​the offset force surface ;

[0086] S1053: Processing the first assembly area data according to formula (5) to obtain equivalent compliances of multiple passive radiators;

[0087] S10514: The first assembly area data and the equivalent compliances of the plurality of passive radiators constitute the first assembly data.

[0088] In this embodiment, refer to Figure 2 , there are three passive radiators in the sound cavity. Due to the principle of the same internal pressure, formula (4) is expressed as:

[0089] ;

[0090] in, is a constant greater than or equal to 0, and its value can be adjusted based on the actual assembly area of ​​the sound cavity;

[0091] Among them, formula (5) is expressed as:

[0092] ;

[0093] in, is the equivalent compliance of a single passive radiator, is the compliance of the speaker suspension structure, is the maximum compliance of the passive radiator, which can be obtained according to the following formula (6): , get the middle assembly area , :

[0094] ;

[0095] The middle assembly area of ​​the offset force surface It is expressed by the following formula (7):

[0096] .

[0097] The function of the offsetting resultant force surface is to offset the resultant force generated by the remaining assembly surfaces PR without introducing forces in other directions.

[0098] S106: Obtaining overall assembly quality of the plurality of passive radiators according to the first assembly data;

[0099] Specifically, the overall assembly quality It is expressed by the following formula (8):

[0100] ;

[0101] in, is the air density, is the speed of sound in air, It is the initial resonant frequency when only the speaker is installed in the irregular sound cavity.

[0102] Specifically, Cmpr It refers to the compliance of PR. The larger the value, the softer the PR. However, rubber materials cannot be made infinitely soft. In order to ensure the distortion performance under high power, 1000 is set as the critical value. Cmprt It is used to obtain the compliance value of the total mass of PR later. When each PR works, it is equivalent to a parallel state. Therefore, the total compliance is the result of the parallel connection of the compliances of each PR. Since the compliances of each PR are the same, the total compliance Cmprt=Cmpr / n , in this embodiment, n=3.

[0103] S107: According to the first assembly data and the total assembly quality, obtain assembly quality data of the plurality of passive radiators, the assembly quality data including the assembly quality of each passive radiator , , ;

[0104] Specifically, the assembly quality of each passive radiator , … It is expressed by the following formula (9):

[0105] .

[0106] S108: selecting specifications of a plurality of passive radiators according to the first assembly data and the assembly quality data;

[0107] Specifically, after obtaining the assembly quality and the corresponding assembly area of ​​each passive radiator, a passive radiator with appropriate specification parameters is selected.

[0108] S109: Determine whether the current resonance frequency of the irregular sound cavity meets a second preset condition;

[0109] Specifically, the second preset condition is expressed by the following formula (10):

[0110] ;

[0111] Specifically, is the resonant frequency of the irregular sound cavity containing a loudspeaker and multiple passive radiators, where is the resonant frequency of the loudspeaker; in a preferred embodiment, Can be times of measurement, that is, taking consecutive measurements within the interval represented by formula (10) times the value to obtain a mean value.

[0112] S110: In response to the resonance frequency satisfying the second preset condition, the design of the irregular sound cavity is completed; otherwise, the above steps are repeated.

[0113] Compared with the prior art, the present invention has the following beneficial effects: the irregular sound cavity low-frequency enhancement design method of the present application, through establishing a model to process the initial angle relationship and initial assembly data of each assembly surface of the passive radiator to obtain the final angle relationship and final area data of different assembly surfaces, obtains the assembly quality data of the passive radiator according to the final angle relationship and the final area data, selects the specifications of the multiple passive radiators according to the final angle relationship, final area data and assembly quality data of the passive radiator, and then adjusts the selection specifications of the passive radiator according to whether the resonant frequency of the irregular sound cavity meets the requirements. The present application can minimize the low-frequency jitter of the cavity without losing the volume of the sound cavity, and can simultaneously meet the needs of improving the low-frequency sound quality and preventing the vibration of the whole machine. The design idea is simple and efficient.

[0114] Example 2

[0115] An embodiment of the present application also provides an electronic device corresponding to the method provided in the aforementioned embodiment. The electronic device may be an electronic device used for a server, such as a server, including an independent server and a distributed server cluster, etc., to execute the above method; the electronic device may also be an electronic device used for a client, such as a mobile phone, a laptop computer, a tablet computer, a desktop computer, etc., to execute the above method.

[0116] Please refer to Figure 4 , which shows a schematic diagram of an electronic device provided by some embodiments of the present application. Figure 4 As shown, the electronic device 40 includes: a processor 400, a memory 401, a bus 402 and a communication interface 403, and the processor 400, the communication interface 403 and the memory 401 are connected via the bus 402; the memory 401 stores a computer program that can be run on the processor 400, and the processor 400 executes the aforementioned method of the present application when running the computer program.

[0117] The memory 401 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk memory. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 403 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used.

[0118] The bus 402 may be an ISA bus, a PCI bus, or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory 401 is used to store programs, and the processor 400 executes the programs after receiving execution instructions. The method disclosed in any implementation of the above-mentioned embodiment of the present application may be applied to the processor 400, or implemented by the processor 400.

[0119] The processor 400 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 400. The above processor 400 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a readily available programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application can be directly embodied as a hardware decoding processor to be executed, or the hardware and software modules in the decoding processor can be executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 401, and the processor 400 reads the information in the memory 401 and completes the steps of the above method in combination with its hardware.

[0120] The electronic device provided in the embodiment of the present application and the method provided in the embodiment of the present application are based on the same inventive concept and have the same beneficial effects as the method adopted, operated or implemented by them.

[0121] Example 3

[0122] The present application also provides a computer-readable medium corresponding to the method provided in the above embodiment. Figure 5 The computer-readable storage medium shown is a CD 50 on which a computer program (ie, a program product) is stored. When the computer program is run by a processor, the aforementioned method will be executed.

[0123] It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical or magnetic storage media, which are not listed here one by one.

[0124] It should be noted that the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of a code contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of the boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0125] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0126] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0127] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0128] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0129] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program codes.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application.

Claims

1. A method for designing low-frequency enhancement of an irregular sound cavity, wherein the irregular sound cavity comprises a loudspeaker and a plurality of passive radiators, characterized in that: The method comprises the following steps: According to the overall structure of the irregular sound cavity, the sound cavity volume of the irregular sound cavity is obtained; Selecting the loudspeaker according to the sound cavity volume of the irregular sound cavity; According to the overall structure of the irregular sound cavity and the volume of the sound cavity, the initial assembly data of the plurality of passive radiators is determined, wherein the initial assembly data includes the total number of assembly surfaces of the irregular sound cavity. , initial assembly area data, the initial assembly area data including the initial assembly area corresponding to each assembly surface , … and the total initial assembly area ; Determining whether the initial assembly data meets a first preset condition; In response to the initial assembly data satisfying a first preset condition, mechanically processing and analyzing the initial assembly data to obtain first assembly data; Obtaining, according to the first assembly data, a total assembly quality of the plurality of passive radiators; According to the first assembly data and the total assembly quality, assembly quality data of the plurality of passive radiators is obtained, wherein the assembly quality data includes the assembly quality of each passive radiator. , … ; selecting specifications of the plurality of passive radiators according to the first assembly data and the assembly quality data; Determining whether the current resonance frequency of the irregular sound cavity meets a second preset condition; In response to the current resonance frequency satisfying a second preset condition, completing the design of the irregular sound cavity; Otherwise, repeat the above steps; The step of mechanically processing and analyzing the initial assembly data to obtain first assembly data includes: Performing force analysis on all assembly surfaces of the plurality of passive radiators to determine a counteracting force surface, a counteracting resultant force surface, and angle data, wherein the angle data includes the angle of each counteracting force surface relative to the counteracting resultant force surface. , … ; The angle data is processed according to formula (4) to obtain first assembly area data, which includes the middle assembly area of ​​each offset force surface: , … and the intermediate assembly area of ​​the offset force surface ; Processing the first assembly area data according to formula (5) to obtain equivalent compliances of the plurality of passive radiators; The first assembly area data and the equivalent compliances of the plurality of passive radiators constitute the first assembly data; Among them, formula (4) is expressed as: (4); Among them, formula (5) is expressed as: (5); in, is the installation area of ​​the speaker, is a constant greater than zero; is the equivalent compliance of the passive radiator, is the compliance of the speaker suspension structure, is the maximum compliance of the passive radiator, and the maximum value of the angle is obtained according to the following formula (6): : (6); Among them, the middle assembly area of ​​the offset force surface It is expressed by the following formula (7): (7)。 2. The method according to claim 1, characterized in that The speaker is selected according to the sound cavity volume of the irregular sound cavity, comprising: Select the speaker using formula (1) and formula (2); Among them, formula (1) is expressed as: (1); Among them, formula (2) is expressed as: (2); in, is the volume of the irregular sound cavity, is the acoustic compliance equivalent volume of the loudspeaker, Design threshold , is the quality factor of the speaker.

3. The method according to claim 2, characterized in that The first preset condition is expressed by the following formula (3): (3); in, .

4. The method according to claim 3, characterized in that: Overall assembly quality It is expressed by the following formula (8): (8); in, is the air density, is the speed of sound in air, It is the initial resonant frequency when only the speaker is installed in the irregular sound cavity.

5. The method according to claim 4, characterized in that Assembly quality of each passive radiator , … It is expressed by the following formula (9): (9)。 6. The method according to claim 5, characterized in that The second preset condition is expressed by the following formula (10): (10); in, is the current resonant frequency of the irregular sound cavity, is the resonant frequency of the speaker.

7. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program is used to execute the method according to any one of claims 1 to 6.

8. An electronic device, characterized in that: The electronic device comprises: processor; a memory for storing instructions executable by the processor; The processor is configured to read the executable instructions from the memory and execute the executable instructions to implement the method according to any one of claims 1 to 6.

Citation Information

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