CN117939371B - Pneumatic high-pitch middle magnetic optimization method, system, equipment and storage medium - Google Patents
Pneumatic high-pitch middle magnetic optimization method, system, equipment and storage medium Download PDFInfo
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Abstract
The application relates to the technical field of speakers, and provides a pneumatic high-pitch middle magnetic optimization method, a system, equipment and a storage medium, which are applied to a pneumatic high-pitch unit, wherein the pneumatic high-pitch unit comprises: the method comprises the steps of: acquiring a finite element model of a pneumatic high-pitch unit; inputting a preset excitation signal to enable the finite element model to output a preset sound wave signal, calculating an ideal energy diagram of the pneumatic vibrating diaphragm according to the preset sound wave signal and an energy distribution algorithm, determining an actual energy diagram of the pneumatic vibrating diaphragm according to the preset excitation signal and the finite element model, and determining an energy optimization diagram according to the ideal energy diagram and the excitation energy diagram; and adjusting the pneumatic vibrating diaphragm according to the energy optimization diagram, a first relation table and a second relation table, wherein the first relation table is obtained according to the relation between the layout parameters of the pneumatic vibrating diaphragm and the energy distribution, and the second relation table is obtained according to the relation between the layout parameters of the pneumatic vibrating diaphragm and the frequency response distribution.
Description
Technical Field
The application relates to the technical field of speakers, in particular to a pneumatic treble middle magnetic optimization method, a pneumatic treble middle magnetic optimization system, pneumatic treble middle magnetic optimization equipment and a storage medium.
Background
With the development of technology, a sound box system can output sound through various kinds of high-pitched units, such as a dome high-pitched unit, a horn high-pitched unit, a flat high-pitched unit, and a pneumatic high-pitched unit. Wherein the pneumatic high pitch is one of the high pitch units, which generates sound by using a current varying on the pneumatic diaphragm member in cooperation with the magnetic member. Because of the inherent advantages of the structure, the pneumatic high-pitch unit often has higher high-pitch sensitivity and wider frequency bandwidth, better sound fidelity effect and richer higher harmonic wave performance. With the appearance of new materials, more choices are provided for upgrading the pneumatic vibrating diaphragm, however, the replacement of the materials of the pneumatic vibrating diaphragm means that the original layout scheme of the pneumatic high-pitched unit needs to be improved so as to optimize the matching degree of the magnetic space of the pneumatic vibrating diaphragm and the pneumatic high-pitched unit of the new materials, and based on the existing simulation method, a simulation engineer needs to try and regulate the education once and again, and the regulation process is long and complicated.
Disclosure of Invention
The application provides a pneumatic high-pitch middle magnetic optimization method, a system, equipment and a storage medium, which are used for reducing the time required for simulating a pneumatic high-pitch unit and improving the efficiency of a simulation process.
In a first aspect, an embodiment of the present application provides a pneumatic treble intermediate magnetic optimization method applied to a pneumatic treble unit, where the pneumatic treble unit includes: the magnetic piece, pneumatic vibrating diaphragm piece and sound cavity piece, the magnetic piece with pneumatic vibrating diaphragm piece all install in on the sound cavity piece, the method includes:
Obtaining a finite element model of the pneumatic high-pitched unit, wherein the finite element model is obtained by modeling according to layout parameters of the magnetic part, the pneumatic vibrating diaphragm part and the sound cavity part;
inputting a preset excitation signal to enable the finite element model to output a preset sound wave signal, calculating an ideal energy diagram on the pneumatic diaphragm according to the preset sound wave signal and a preset energy distribution algorithm, determining an actual energy diagram on the pneumatic diaphragm according to the preset excitation signal and the finite element model of the pneumatic high-pitched unit, and determining an energy optimization diagram according to the ideal energy diagram and the actual energy diagram;
Acquiring a preset first relation table and a preset second relation table, wherein the first relation table is obtained according to the relation between the layout parameters and the energy distribution of the pneumatic vibrating diaphragm, and the second relation table is obtained according to the relation between the layout parameters and the frequency response distribution of the pneumatic vibrating diaphragm;
Determining target layout parameters of the pneumatic diaphragm according to the energy optimization diagram, the first relation table and the second relation table;
And adjusting the pneumatic vibrating diaphragm piece according to the target layout parameters so as to optimize the middle magnetism of the pneumatic high-pitch unit.
In a second aspect, an embodiment of the present application provides a pneumatic treble intermediate magnetic optimization system applied to a pneumatic treble unit, the pneumatic treble unit comprising: magnetism spare, pneumatic type vibrating diaphragm spare and sound cavity spare, magnetism spare with pneumatic type vibrating diaphragm spare all install in on the sound cavity spare, magnetism optimizing system includes in the middle of the pneumatic high pitch: the system comprises a model loading module, an energy calculating module, a parameter importing module, a parameter calculating module and a parameter generating module;
The model loading module is used for acquiring a finite element model of the pneumatic high-pitched unit, wherein the finite element model is obtained by modeling according to the layout parameters of the magnetic piece, the layout parameters of the pneumatic vibrating diaphragm piece and the layout parameters of the sound cavity piece;
The energy calculation module is used for inputting a preset excitation signal so that the finite element model outputs a preset sound wave signal, calculating an ideal energy diagram on the pneumatic vibrating diaphragm according to the preset sound wave signal and a preset energy distribution algorithm, determining an actual energy diagram on the pneumatic vibrating diaphragm according to the preset excitation signal and the pneumatic high-pitched unit, and determining an energy optimization diagram according to the ideal energy diagram and the actual energy diagram;
The parameter importing module is used for acquiring a preset first relation table and a preset second relation table, wherein the first relation table is obtained according to the relation between the layout parameters and the energy distribution of the pneumatic vibrating diaphragm piece, and the second relation table is obtained according to the relation between the layout parameters and the frequency response distribution of the pneumatic vibrating diaphragm piece;
the parameter calculation module is used for determining target layout parameters of the pneumatic diaphragm piece according to the energy optimization diagram, the first relation table and the second relation table;
And the parameter generation module is used for adjusting the pneumatic vibrating diaphragm piece according to the target layout parameters so as to optimize the middle magnetism of the pneumatic high-pitch unit.
In a third aspect, embodiments of the present application provide a computer device comprising a memory and a processor;
The memory is used for storing a computer program;
The processor is configured to execute the computer program and implement the pneumatic treble intermediate magnetic optimization method according to any one of the embodiments of the present application when the computer program is executed.
In a fourth aspect, embodiments of the present application provide a computer readable storage medium storing a computer program, which when executed by a processor causes the processor to implement a pneumatic treble intermediate magnetic optimization method according to any of the embodiments of the present application.
The embodiment of the application provides a pneumatic high-pitch middle magnetic optimization method which is applied to a pneumatic high-pitch unit, wherein the pneumatic high-pitch unit comprises the following components: the magnetic part, the pneumatic vibrating diaphragm part and the sound cavity part are arranged on the sound cavity part, and the method comprises the following steps: the method comprises the steps of obtaining a finite element model of a pneumatic high-pitched unit, wherein the finite element model is obtained by modeling according to layout parameters of a magnetic part, layout parameters of a pneumatic vibrating diaphragm part and layout parameters of a sound cavity part; inputting a preset excitation signal to enable the finite element model to output a preset sound wave signal, calculating an ideal energy diagram on the pneumatic vibrating diaphragm according to the preset sound wave signal and a preset energy distribution algorithm, determining an actual energy diagram on the pneumatic vibrating diaphragm according to the preset excitation signal and the finite element model of the pneumatic high-pitched unit, and determining an energy optimization diagram according to the ideal energy diagram and the actual energy diagram; acquiring a preset first relation table and a preset second relation table, wherein the first relation table is obtained according to the relation between the layout parameters and the energy distribution of the pneumatic vibrating diaphragm, and the second relation table is obtained according to the relation between the layout parameters and the frequency response distribution of the pneumatic vibrating diaphragm; determining target layout parameters of the pneumatic diaphragm piece according to the energy optimization diagram, the first relation table and the second relation table; and adjusting the pneumatic vibrating diaphragm piece according to the target layout parameters so as to optimize the middle magnetism of the pneumatic high-pitch unit.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a pneumatic treble unit according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of a pneumatic treble intermediate magnetic optimization method provided by an embodiment of the application;
fig. 3 is a schematic block diagram of a pneumatic treble intermediate magnetic optimization system provided by an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The flow diagrams depicted in the figures are merely illustrative and not necessarily all of the elements and operations/steps are included or performed in the order described. For example, some operations/steps may be further divided, combined, or partially combined, so that the order of actual execution may be changed according to actual situations.
It is also to be understood that the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Referring to fig. 1, fig. 1 shows a schematic structure of a pneumatic treble unit according to an embodiment of the application. As shown in fig. 1, the pneumatic treble unit 100 includes: the magnetic part 11, the pneumatic vibrating diaphragm part 12 and the acoustic cavity part 13 are arranged on the acoustic cavity part 13, and the magnetic part 11 and the pneumatic vibrating diaphragm part 12 are arranged on the acoustic cavity part 13. Wherein the magnetic member 11 provides a magnetic field, the magnetic member 11 may be a magnetic material with a high magnetic flux density, such as neodymium iron boron, so that the magnetic field strength can be increased, the volume of the pneumatic tweeter unit 100 can be reduced, and a larger driving force can be provided to the pneumatic diaphragm member 12, thereby improving the high frequency response and output capability of the pneumatic diaphragm member 12. The pneumatic diaphragm 12 is provided with a signal wire, and the signal wire is used for transmitting a driving signal to drive the pneumatic diaphragm 12 to deform in a magnetic field, so that the pneumatic diaphragm 12 is driven to emit an acoustic signal. The sound cavity member 13 is used for fixing the magnetic member 11 and the pneumatic diaphragm member 12, and the sound cavity member 13 is also used for teaching the sound wave signal emitted by the pneumatic diaphragm member 12 so as to make the sound wave signal more pleasant to hear.
When new materials and new technologies are present, the pneumatic tweeter unit 100 is often required to be upgraded accordingly to output more beautiful sounds.
Referring to fig. 2, fig. 2 is a schematic flow chart of a pneumatic treble middle magnetic optimization method according to an embodiment of the application. The pneumatic treble middle magnetic optimization method shown in fig. 2, which is applied to the pneumatic treble unit 100 shown in fig. 1, comprises the following specific steps: S101-S105.
S101, acquiring a finite element model of the pneumatic high-pitched unit, wherein the finite element model is obtained by modeling according to layout parameters of the magnetic piece, layout parameters of the pneumatic vibrating diaphragm piece and layout parameters of the sound cavity piece.
For example, before the finite element model of the pneumatic high-pitch unit is obtained, the pneumatic high-pitch unit is modeled by finite element modeling software, such as COMSOL Multiphysics software, and parameters required for modeling are layout parameters of the magnetic part, layout parameters of the pneumatic diaphragm part and layout parameters of the sound cavity part. Layout parameters of the magnetic element include: the structural parameters of the magnetic part and the electromagnetic parameters of the magnetic part include: the appearance structure of magnet, the structure of yoke and air gap structure, the electromagnetic parameters of magnetic part include: magnetization, magnetic flux density, and magnetization curve. And simulating according to the structural parameters of the magnetic piece and the electromagnetic parameters of the magnetic piece to obtain a simulated magnetic field of the magnetic piece. Layout parameters of the pneumatic vibrating diaphragm piece include: vibration mechanical parameters of the vibrating diaphragm, appearance structure of the vibrating diaphragm and layout parameters of signal wires. According to layout parameters of the pneumatic vibrating diaphragm, and by combining with the simulated magnetic field of the magnetic piece, the vibration mode of the simulated pneumatic vibrating diaphragm driven by the audio signal is obtained, so that the vibration mode and displacement response of the pneumatic vibrating diaphragm under the audio signals with different frequencies are calculated, and then the sound wave signal output of the simulated pneumatic vibrating diaphragm is obtained. Layout parameters of the sound cavity piece include: and according to the acoustic parameters of the appearance structure of the sound cavity piece and the material of the sound cavity piece, and the acoustic signal output of the pneumatic diaphragm piece, running simulation software, solving a pressure fluctuation equation (such as a Helmholtz equation), and calculating to obtain sound pressure, sound velocity, sound intensity distribution and frequency domain response of each point in the sound cavity piece.
Through the process, the finite element model of the pneumatic high-pitch unit is established according to the parameters of each component of the pneumatic high-pitch unit, data support is provided for the improvement of the pneumatic high-pitch unit on the basis, and unnecessary physical experiment necessity is reduced in the process of carrying out hardware upgrading on the pneumatic high-pitch unit, so that the simulation efficiency is improved, and the simulation cost is saved.
S102, inputting a preset excitation signal to enable the finite element model to output a preset sound wave signal, calculating an ideal energy diagram on the pneumatic diaphragm according to the preset sound wave signal and a preset energy distribution algorithm, determining an actual energy diagram on the pneumatic diaphragm according to the preset excitation signal and the finite element model of the pneumatic high-pitched unit, and determining an energy optimization diagram according to the ideal energy diagram and the actual energy diagram.
For example, in calculating the energy distribution on the pneumatic diaphragm element, it is common practice to simulate by a linear equation algorithm, such as wave equation or helmholtz equation, but the pneumatic diaphragm element is driven by a high-power audio signal, and the nonlinear phenomenon caused by the high amplitude needs to be considered. The preset energy distribution algorithm comprises a linear equation algorithm and a nonlinear equation algorithm, wherein the nonlinear equation algorithm is WESTERVELT equation algorithm. The WESTERVELT equation algorithm is used for researching nonlinear phenomenon in the large-amplitude sound wave propagation process, and is mainly used for simulating energy distribution of the pneumatic vibrating diaphragm piece under the drive of a high-power audio signal. The main formula of WESTERVELT equation algorithm is:
Wherein, Is the Laplace operator,/>Is thermodynamic pressure,/>Is linear sound velocity,/>Is the elastic modulus of the material,/>Is the viscosity coefficient,/>Representing degrees of freedom,/>Is heat capacity,/>Is/>Viscosity coefficient in one degree of freedom,/>Is the sound velocity influence coefficient.
And according to a preset energy distribution algorithm and a preset sound wave signal, reversely pushing the energy distribution on the pneumatic vibrating diaphragm piece to obtain an ideal energy diagram on the pneumatic vibrating diaphragm piece. And simultaneously, inputting a preset excitation signal to the finite element model of the pneumatic high-pitch unit so that the finite element model outputs a preset sound wave signal, and in the process, simulation software outputs an actual energy diagram on the pneumatic diaphragm. And according to the difference between the ideal energy diagram and the actual energy diagram, obtaining the region on the pneumatic diaphragm piece, which needs to be subjected to energy optimization.
In the conventional teaching process, engineers are required to adjust parameters one by one, and the teaching result is judged according to personal experience, and through the process, the energy distribution area required to be optimized is obtained through back-pushing, so that the teaching efficiency is improved, and the influence of excessive personal factors in the teaching process is avoided.
In some embodiments, the preset acoustic wave signal forms a reflected acoustic wave signal in the acoustic cavity member, and the actual energy map on the pneumatic diaphragm member is determined according to the preset excitation signal and the pneumatic high-pitch unit, and the specific steps include: determining an excitation energy diagram on the pneumatic diaphragm piece according to a preset excitation signal and the pneumatic high-pitched unit; determining a reflected energy diagram on the pneumatic diaphragm piece according to the reflected sound wave signal and the pneumatic high-pitched unit; and superposing the excitation energy diagram and the reflection energy diagram to obtain an actual energy diagram.
The energy distribution on the pneumatic diaphragm element includes not only the energy distribution caused by the acoustic wave signal generated by the pneumatic diaphragm element, but also the energy distribution transmitted by the reflected acoustic wave signal of the acoustic wave signal in the acoustic cavity element, and the extra energy also causes the pneumatic diaphragm element to overload. Therefore, in the process of calculating the actual energy map, the influence of the reflected sound wave signal needs to be considered, so that the accuracy of the actual energy map can be improved, and the accuracy of the simulation process of the pneumatic tweeter can be improved.
In some embodiments, the exterior of the pneumatic high-pitch unit further includes other sound generating units, the other sound generating units output interfering sound wave signals to the pneumatic high-pitch unit, and the specific steps further include: determining an excitation energy diagram on the pneumatic diaphragm piece according to a preset excitation signal and the pneumatic high-pitched unit; determining an interference energy diagram on the pneumatic diaphragm according to the reflected sound wave signal, the interference sound wave signal and the pneumatic high-pitched unit; and superposing the excitation energy diagram and the interference energy diagram to obtain an actual energy diagram.
The interference source on the pneumatic diaphragm component not only comprises the reflected sound wave signals of the sound wave signals in the sound cavity component, but also comprises other sound generating units for outputting the interference sound wave signals to the pneumatic high-pitch unit. In designing the pneumatic treble unit, it is necessary to consider the position of the pneumatic treble unit in the sound image system and calculate the influence of other sound producing units at other positions. After the other sound generating units output sound wave signals to the sound cavity piece, the sound wave signals which cannot be filtered by the sound cavity piece are used as interference sound wave signals, and when the pneumatic high-pitch unit simulates, an interference source is added in the finite element model so as to generate the interference sound wave signals. Therefore, the influence of the reflected sound wave signal and the interfering sound wave signal needs to be taken into account in the calculation of the actual energy map. Thus, the accuracy of the actual energy distribution diagram can be improved, and the accuracy of the simulation process of the pneumatic tweeter can be improved.
In some embodiments, determining an energy optimization map from the ideal energy map and the actual energy map includes: acquiring a preset hue energy table, wherein the hue energy table comprises corresponding relations of different energy values and various hues; dividing an ideal energy diagram into a plurality of first energy blocks according to a preset grid dividing line, and dividing an actual energy diagram into a plurality of second energy blocks, wherein the first energy blocks and the second energy blocks are in one-to-one correspondence; acquiring a filling proportion of each hue in the first energy block, and calculating a first energy mean value of the first energy block according to the filling proportion and an energy value corresponding to each hue in the first energy block in a hue energy table; acquiring the filling proportion of each hue in the second energy block, and calculating a second energy mean value of the second energy block according to the filling proportion and the corresponding energy value of each hue in the second energy block in a hue energy table, so as to obtain a difference energy value according to the first energy mean value and the second energy mean value; and matching a target hue from the hue energy table according to the energy value of the difference, wherein the target hue is one of a plurality of color phases, and splicing the target hue to obtain the energy optimization graph.
For example, before simulation, hues corresponding to different energy values are defined, for example, the hues comprise red, orange, yellow, green, blue and purple, the larger the energy value is, the more front the corresponding color is, and a hue energy table is generated according to the corresponding relation between the energy value and the hues.
The denser the preset grid dividing lines are, the more energy blocks are obtained after the energy map is divided, and the more accurate the comparison result is.
The first energy block and the second energy block may further comprise a plurality of hues, and each hue is filled in a different proportion. When the first energy mean value is calculated, the filling proportion of the hue is used as a calculated weight value, the product of each weight value and the corresponding energy value is calculated, and then the products are accumulated to obtain the first energy mean value, wherein the first energy mean value represents the energy distribution condition in the first energy block. Similarly, the second energy mean value is calculated in the same manner. Thus, the accuracy of the comparison process of the first energy block and the second energy block can be improved.
When the first energy block and the filling proportion of each hue in the first energy block are obtained, segmentation and statistics can be carried out through a trained neural network model.
Through the above process, a method for calculating the energy distribution difference in different images is provided, so that the energy distribution difference in an ideal energy map and an actual energy map can be compared, and an energy optimization map can be determined.
S103, acquiring a preset first relation table and a preset second relation table, wherein the first relation table is obtained according to the relation between the layout parameters and the energy distribution of the pneumatic vibrating diaphragm, and the second relation table is obtained according to the relation between the layout parameters and the frequency response distribution of the pneumatic vibrating diaphragm.
In COMSOL Multiphysics software, a finite element model of the pneumatic diaphragm is built according to layout parameters of the pneumatic diaphragm, a preset acoustic signal is generated by the pneumatic diaphragm, the layout parameters of the pneumatic diaphragm, for example, the thickness of the pneumatic diaphragm and the distribution of signal wires on the pneumatic diaphragm are adjusted based on a preset energy distribution algorithm, a corresponding energy distribution value is obtained, and a first relation table is generated according to the layout parameters of the pneumatic diaphragm and the corresponding energy distribution value. In addition, based on the finite element model of the pneumatic vibrating diaphragm, the influence of the layout parameters of the pneumatic vibrating diaphragm on the frequency response distribution is also required to be considered, the layout parameters of the pneumatic vibrating diaphragm are adjusted to obtain corresponding frequency response distribution values, and a second relation table is generated according to the layout parameters of the pneumatic vibrating diaphragm and the corresponding frequency response distribution values. If the layout parameters of one pneumatic vibrating diaphragm piece are adjusted to optimize the energy distribution, but the frequency response distribution is excessively negatively affected, the value is discarded, and the layout parameters of the other pneumatic vibrating diaphragm piece are determined again. Thus, the sounding distortion of the pneumatic high-pitch unit can be reduced, and the sound performance of the pneumatic high-pitch unit can be optimized.
S104, determining target layout parameters of the pneumatic diaphragm piece according to the energy optimization diagram, the first relation table and the second relation table.
The method comprises the steps of determining a region to be optimized on a pneumatic diaphragm piece according to an energy optimization diagram, obtaining corresponding layout parameters to be optimized from a first relation table according to energy distribution values to be optimized of the region and the energy distribution values to be optimized. And then, according to the second relation table and the layout parameters to be optimized, determining the frequency response distribution corresponding to the layout parameters to be optimized, and after confirming that the frequency response distribution corresponding to the layout parameters to be optimized is smaller than a preset frequency response distribution threshold, determining the target layout parameters of the pneumatic vibrating diaphragm piece of the layout parameters to be optimized.
In some embodiments, the pneumatic diaphragm member is provided with a signal wire, and layout parameters of the pneumatic diaphragm member include: signal conductor density.
In some embodiments, the pneumatic diaphragm assembly is divided into a plurality of layout areas, and the determining the target layout parameters of the pneumatic diaphragm assembly according to the energy optimization graph, the first relationship table and the second relationship table includes: determining an energy optimization interval of each layout area according to the energy optimization graph; according to the energy average value of the energy optimization interval corresponding to the layout area, and combining the first relation table and the second relation table to obtain the adjustment parameters of the pneumatic vibrating diaphragm; and obtaining target layout parameters according to the adjustment parameters and the layout parameters of the pneumatic vibrating diaphragm piece.
Through carrying out the subregion to pneumatic type vibrating diaphragm spare, in the in-process of optimizing, regard each region as minimum optimizing unit to reduce the optimizing point on the pneumatic type vibrating diaphragm spare, reduce the processing degree of difficulty of pneumatic type vibrating diaphragm spare after optimizing.
S105, adjusting the pneumatic vibrating diaphragm according to the target layout parameters so as to optimize the middle magnetism of the pneumatic high-pitch unit.
And adjusting the layout parameters of the original pneumatic vibrating diaphragm according to the target layout parameters to obtain optimized layout parameters, and processing the pneumatic vibrating diaphragm according to the optimized layout parameters so as to optimize the middle magnetism of the pneumatic high-pitch unit.
By the method, the finite element model of the pneumatic high-pitched unit is constructed, the actual energy diagram and the ideal energy diagram of the pneumatic vibrating diaphragm are obtained through simulation on the finite element model, the improvement required by the actual energy diagram of the pneumatic vibrating diaphragm to reach the ideal energy diagram is reversely pushed, the energy optimization diagram is output, the target layout parameters of the pneumatic vibrating diaphragm can be obtained according to the energy optimization diagram and the first relation table and the second relation table of the pneumatic vibrating diaphragm which are constructed in advance, and the pneumatic vibrating diaphragm is adjusted.
Referring to fig. 3, fig. 3 is a schematic block diagram of a pneumatic treble intermediate magnetic optimization system 300 for performing the pneumatic treble intermediate magnetic optimization method described above according to an embodiment of the present application. The pneumatic high-pitch middle magnetic optimization system can be configured in a server or terminal equipment and is applied to a pneumatic high-pitch unit, and the pneumatic high-pitch unit comprises: the magnetic part, the pneumatic vibrating diaphragm part and the sound cavity part are arranged on the sound cavity part.
The server may be an independent server, may be a server cluster, or may be a cloud server that provides cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, a content delivery network (Content Delivery Network, CDN), and basic cloud computing services such as big data and an artificial intelligence platform. The terminal device can be an electronic device such as a mobile phone, a tablet computer, a notebook computer, a desktop computer, a user digital assistant, a wearable device and the like.
As shown in fig. 3, the pneumatic treble intermediate magnetic optimization system 300 includes: a model loading module 301, an energy calculation module 302, a parameter importing module 303, a parameter calculation module 304 and a parameter generating module 305.
The model loading module 301 is configured to obtain a finite element model of the pneumatic treble unit, where the finite element model is obtained by modeling according to a layout parameter of the magnetic component, a layout parameter of the pneumatic diaphragm component, and a layout parameter of the acoustic cavity component.
The energy calculation module 302 is configured to input a preset excitation signal, so that the finite element model outputs a preset acoustic signal, calculate an ideal energy map on the pneumatic diaphragm according to the preset acoustic signal and a preset energy distribution algorithm, determine an actual energy map on the pneumatic diaphragm according to the preset excitation signal and the finite element model of the pneumatic treble unit, and determine an energy optimization map according to the ideal energy map and the actual energy map.
The parameter importing module 303 is configured to obtain a preset first relationship table and a preset second relationship table, where the first relationship table is obtained according to a relationship between a layout parameter and energy distribution of the pneumatic diaphragm, and the second relationship table is obtained according to a relationship between a layout parameter and frequency response distribution of the pneumatic diaphragm.
And the parameter calculation module 304 is configured to determine a target layout parameter of the pneumatic diaphragm according to the energy optimization graph, the first relationship table and the second relationship table.
The parameter generating module 305 is configured to adjust the pneumatic diaphragm according to the target layout parameter, so as to optimize the middle magnetism of the pneumatic high pitch unit.
The embodiment of the application provides computer equipment, which comprises a memory and a processor; the memory is used for storing a computer program; a processor for executing the computer program and for implementing the pneumatic treble intermediate magnetic optimization method according to any of the embodiments of the application when the computer program is executed.
The embodiment of the application provides a computer readable storage medium, and the computer readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor realizes the pneumatic high-pitch middle magnetic optimization method according to any one of the embodiments of the application.
While the application has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (9)
1. A pneumatic treble intermediate magnetic optimization method, characterized by being applied to a pneumatic treble unit, the pneumatic treble unit comprising: the magnetic piece, pneumatic vibrating diaphragm piece and sound cavity piece, the magnetic piece with pneumatic vibrating diaphragm piece all install in on the sound cavity piece, the method includes:
Obtaining a finite element model of the pneumatic high-pitched unit, wherein the finite element model is obtained by modeling according to layout parameters of the magnetic part, the pneumatic vibrating diaphragm part and the sound cavity part;
inputting a preset excitation signal to enable the finite element model to output a preset sound wave signal, calculating an ideal energy diagram on the pneumatic diaphragm according to the preset sound wave signal and a preset energy distribution algorithm, determining an actual energy diagram on the pneumatic diaphragm according to the preset excitation signal and the finite element model of the pneumatic high-pitched unit, and determining an energy optimization diagram according to the ideal energy diagram and the actual energy diagram;
Acquiring a preset first relation table and a preset second relation table, wherein the first relation table is obtained according to the relation between the layout parameters and the energy distribution of the pneumatic vibrating diaphragm, and the second relation table is obtained according to the relation between the layout parameters and the frequency response distribution of the pneumatic vibrating diaphragm;
Determining target layout parameters of the pneumatic diaphragm according to the energy optimization diagram, the first relation table and the second relation table;
And adjusting the pneumatic vibrating diaphragm piece according to the target layout parameters so as to optimize the middle magnetism of the pneumatic high-pitch unit.
2. The pneumatic treble intermediate magnetic optimization method of claim 1, wherein the preset acoustic wave signal forms a reflected acoustic wave signal in the acoustic cavity member, and wherein determining the actual energy pattern on the pneumatic diaphragm member based on the preset excitation signal and the pneumatic treble unit comprises:
determining an excitation energy diagram on the pneumatic diaphragm piece according to the preset excitation signal and the pneumatic high-pitched unit;
Determining a reflected energy diagram on the pneumatic diaphragm according to the reflected sound wave signal and the pneumatic high-pitched unit;
and superposing the excitation energy diagram and the reflection energy diagram to obtain the actual energy diagram.
3. The pneumatic treble intermediate magnetic optimization method of claim 2, wherein the exterior of the pneumatic treble unit further comprises other sound generating units, the other sound generating units outputting interfering sound wave signals to the pneumatic treble unit, the determining the actual energy map on the pneumatic diaphragm member according to the preset excitation signal and the pneumatic treble unit further comprising:
determining an excitation energy diagram on the pneumatic diaphragm piece according to the preset excitation signal and the pneumatic high-pitched unit;
determining an interference energy diagram on the pneumatic diaphragm according to the reflected sound wave signal, the interference sound wave signal and the pneumatic high-pitched unit;
And superposing the excitation energy diagram and the interference energy diagram to obtain the actual energy diagram.
4. The pneumatic treble intermediate magnetic optimization method of claim 1, wherein the pneumatic diaphragm member is divided into a plurality of layout areas, and the determining the target layout parameters of the pneumatic diaphragm member according to the energy optimization graph, the first relationship table, and the second relationship table comprises:
determining an energy optimization interval of each layout area according to the energy optimization graph;
according to the energy average value of the energy optimization interval corresponding to the layout area, and combining the first relation table and the second relation table to obtain the adjustment parameters of the pneumatic diaphragm;
and obtaining the target layout parameters according to the adjustment parameters and the layout parameters of the pneumatic vibrating diaphragm.
5. The pneumatic high pitch intermediate magnetic optimization method according to claim 1, wherein the pneumatic diaphragm member is provided with a signal wire, and layout parameters of the pneumatic diaphragm member include: signal conductor density.
6. The pneumatic treble intermediate magnetic optimization method of claim 1, wherein said determining an energy optimization map from said ideal energy map and said actual energy map comprises:
Acquiring a preset hue energy table, wherein the hue energy table comprises corresponding relations between different energy values and various hues;
dividing the ideal energy diagram into a plurality of first energy blocks and dividing the actual energy diagram into a plurality of second energy blocks according to a preset grid dividing line, wherein the first energy blocks and the second energy blocks are in one-to-one correspondence;
Acquiring a filling proportion of each hue in the first energy block, and calculating a first energy mean value of the first energy block according to the filling proportion and an energy value corresponding to each hue in the first energy block in the hue energy table;
Acquiring a filling proportion of each hue in the second energy block, and calculating a second energy mean value of the second energy block according to the filling proportion and an energy value corresponding to each hue in the second energy block in the hue energy table;
Obtaining a difference energy value according to the first energy mean value and the second energy mean value;
And matching a target hue from the hue energy table according to the energy value of the difference, wherein the target hue is one of a plurality of hues, and splicing the target hues to obtain the energy optimization graph.
7. A pneumatic treble intermediate magnetic optimization system, characterized by being applied to a pneumatic treble unit comprising: magnetism spare, pneumatic type vibrating diaphragm spare and sound cavity spare, magnetism spare with pneumatic type vibrating diaphragm spare all install in on the sound cavity spare, magnetism optimizing system includes in the middle of the pneumatic high pitch:
The model loading module is used for acquiring a finite element model of the pneumatic high-pitched unit, wherein the finite element model is obtained by modeling according to the layout parameters of the magnetic piece, the layout parameters of the pneumatic vibrating diaphragm piece and the layout parameters of the sound cavity piece;
The energy calculation module is used for inputting a preset excitation signal so that the finite element model outputs a preset sound wave signal, calculating an ideal energy diagram on the pneumatic vibrating diaphragm according to the preset sound wave signal and a preset energy distribution algorithm, determining an actual energy diagram on the pneumatic vibrating diaphragm according to the preset excitation signal and the finite element model of the pneumatic high-pitched unit, and determining an energy optimization diagram according to the ideal energy diagram and the actual energy diagram;
The parameter importing module is used for acquiring a preset first relation table and a preset second relation table, wherein the first relation table is obtained according to the relation between the layout parameters and the energy distribution of the pneumatic vibrating diaphragm piece, and the second relation table is obtained according to the relation between the layout parameters and the frequency response distribution of the pneumatic vibrating diaphragm piece;
the parameter calculation module is used for determining target layout parameters of the pneumatic diaphragm piece according to the energy optimization diagram, the first relation table and the second relation table;
And the parameter generation module is used for adjusting the pneumatic vibrating diaphragm piece according to the target layout parameters so as to optimize the middle magnetism of the pneumatic high-pitch unit.
8. A computer device, the computer device comprising a memory and a processor;
The memory is used for storing a computer program;
The processor is configured to execute the computer program and to implement the pneumatic treble intermediate magnetic optimization method according to any one of claims 1 to 6 when the computer program is executed.
9. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when executed by a processor, causes the processor to implement the pneumatic treble intermediate magnetic optimization method according to any one of claims 1 to 6.
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| CN205273296U (en) * | 2015-12-24 | 2016-06-01 | 重庆长安汽车股份有限公司 | Car loudspeaker installing support |
| CN117520828A (en) * | 2024-01-05 | 2024-02-06 | 深圳瑞利声学技术股份有限公司 | Audio processing method, device, equipment and storage medium |
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| CN205273296U (en) * | 2015-12-24 | 2016-06-01 | 重庆长安汽车股份有限公司 | Car loudspeaker installing support |
| CN117520828A (en) * | 2024-01-05 | 2024-02-06 | 深圳瑞利声学技术股份有限公司 | Audio processing method, device, equipment and storage medium |
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