CN109379669A - Production method, device and the computer readable storage medium of closed speaker - Google Patents
Production method, device and the computer readable storage medium of closed speaker Download PDFInfo
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- CN109379669A CN109379669A CN201811259891.7A CN201811259891A CN109379669A CN 109379669 A CN109379669 A CN 109379669A CN 201811259891 A CN201811259891 A CN 201811259891A CN 109379669 A CN109379669 A CN 109379669A
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- 238000004590 computer program Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The present embodiments relate to stereo set technical fields, disclose production method, device and the computer readable storage medium of a kind of closed speaker.The production method of closed speaker includes: to obtain the fisrt feature parameter of the expectation audio performance for characterizing loudspeaker；The specification of loudspeaker is determined according to fisrt feature parameter；Simulation analysis is carried out to loudspeaker, obtains the multiple volumes for the shell that loudspeaker can be made to meet desired design performance, and chooses net volume of the minimum volume as shell in multiple volumes；Shell is designed according to net volume, simulation analysis is carried out to closed speaker, adjustment shell net volume meets the first preset requirement up to the audio performance of closed speaker, records current volume and makes volume as first shell；Loudspeaker after being determined according to first shell production volume and specification makes closed speaker.It is small in size while production method, device and the storage medium of closed speaker provided by the invention can satisfy speaker low frequency performance.
Description
Technical field
The present embodiments relate to stereo set technical field, in particular to a kind of production method of closed speaker, dress
It sets and computer readable storage medium.
Background technique
Terminal of the speaker as entire sound system, effect is audio electric energy to be converted into corresponding sound energy, and it
It is radiated space to go, popular saying, which just refers to, carries power amplifier in speaker host cabinet or subwoofer cabinet, believe audio
It number amplifies and sound to be played back out by speaker itself after processing, its sound is made to become larger.Speaker is extremely important group of sound system
At part, because it is responsible for and electric signal is transformed into acoustical signal directly listens to this key task for the ear of people.It is existing
Speaker in technology can be divided into Whole frequency band speaker, woofer and super-bass loudspeaker box.So-called Whole frequency band speaker refer to can cover it is low
Frequently, the sound equipment of intermediate frequency and high-frequency range playback.The lower frequency limit of Whole frequency band speaker is generally 30Hz-60Hz, and upper limiting frequency is
15KHz-20KHz.Playback only can be undertaken completely with a pair of or two pairs of Whole frequency band speakers in general middle-size and small-size sound system
Task.Woofer and super-bass loudspeaker box are usually to be used to supplement the low frequency of Whole frequency band speaker and the dedicated tone of ultralow frequency playback
Case.This kind of speaker is commonly used in large and medium-sized sound system, to reinforce the dynamics and shock sense of low frequency playback.In use, big
Mostly after an electronic frequency divider (acoustic splitter) divides, low frequency signal is sent into a special bass power amplifier, then push low
Sound or super-bass loudspeaker box.
At least there are the following problems in the prior art for inventor's discovery: since low-frequency minimum is got in closed speaker system
Low, the bigger therefore common subwoofer of required speaker volume/woofer volume is generally larger, and small speaker does not have low frequency.
Summary of the invention
A kind of production method for being designed to provide closed speaker of embodiment of the present invention, device and computer-readable
Storage medium, it is small in size while can satisfy speaker low frequency performance.
In order to solve the above technical problems, embodiments of the present invention provide a method the production side of closed speaker
Method includes shell and the closed speaker for being set to the intracorporal loudspeaker of the shell for making, comprising: obtain for characterizing
State the fisrt feature parameter of the expectation audio performance of loudspeaker；The rule of the loudspeaker are determined according to the fisrt feature parameter
Lattice；The loudspeaker after determining to specification carries out simulation analysis, and acquisition can make the loudspeaker meet the desired design
Multiple volumes of the shell of performance, and net volume of the minimum volume as the shell is chosen in the multiple volume；
The shell is designed according to the net volume, and according to the loudspeaker of the specification after determining and the shell with the net volume
The closed speaker is designed, simulation analysis is carried out to the closed speaker, adjusts the net volume of the shell until described
The audio performance of closed speaker meets the first preset requirement, records current volume and as the closed speaker
First shell makes volume；Loudspeaker production after being determined according to first shell production volume and specification is described closed
Formula speaker.
The present invention also provides a kind of producing devices of closed speaker, comprising: at least one processor；And with institute
State the memory of at least one processor communication connection；Wherein, be stored with can be by least one described processor for the memory
The instruction of execution, described instruction are executed by least one described processor, so that at least one described processor is able to carry out
The production method for the closed speaker stated.
The present invention also provides a kind of computer readable storage mediums, are stored with computer program, the computer program
The production method of above-mentioned closed speaker is realized when being executed by processor.
Embodiments of the present invention are in terms of existing technologies, audio property for characterizing the expectation of loudspeaker by obtaining
The fisrt feature parameter of energy, the specification of loudspeaker is determined further according to fisrt feature parameter, so that the loudspeaker finally made
Audio performance can satisfy the demand of closed speaker；Loudspeaker after determining again to specification carries out simulation analysis, obtains energy
So that loudspeaker is met multiple volumes of the shell of desired design performance, and chooses minimum volume as shell in multiple volumes
Net volume, enable the closed speaker finally made lower casing the desired design performance for meeting loudspeaker the case where
The volume of body is small as far as possible；Shell is finally designed according to net volume, and according to the loudspeaker after specification determination and has this net
The closed speaker of the housing design of volume carries out simulation analysis to closed speaker, adjusts the net volume of shell until closed
The audio performance of speaker meets the first preset requirement, records current volume and the first shell system as closed speaker
Make volume.Loudspeaker after being determined according to first shell production volume and specification makes closed speaker, so that closed speaker
Audio performance the net volume of shell is constantly adjusted via simulation analysis after can satisfy the first preset requirement, and due to being to most
What the shell of small size was adjusted, thus while so that the closed speaker finally made is can satisfy low frequency performance,
It is small in size, avoid that " low-frequency minimum is lower in closed speaker system, and required speaker volume is bigger, therefore common ultralow
Sound/woofer volume is generally larger, and small speaker does not have low frequency " the case where generation.
In addition, described carry out simulation analysis to the closed speaker, the net volume of the shell is adjusted until described close
The audio performance of enclosed speaker meets the first preset requirement, specifically includes: carrying out finite element analysis to the closed speaker, presses
Fixed dimension ratio adjusts the net volume of the shell until the audio performance of the closed speaker meets the first preset requirement.
In addition, it is described finite element analysis is carried out to the closed speaker before, further includes: obtain described for characterizing
The second feature parameter of the audio performance of closed speaker；It is described in fixed dimension ratio adjust the shell net volume until
The audio performance of the closed speaker meets the first preset requirement, specifically includes: adjusting the shell in fixed dimension ratio
Net volume, until the difference of effective work audio frequency parameter of the second feature parameter and the closed speaker is in default model
It encloses outer.
In addition, it is described record current volume and as the first shell of the closed speaker production volume it
Afterwards, further includes: make the shell with first shell production volume；By the compression acoustical cotton with preset vol fill to
In the shell.By filling the compression acoustical cotton with preset vol in the shell, sound is reduced inside speaker
Transmission speed achievees the effect that promote equivalent volume.
In addition, it is described the compression acoustical cotton with preset vol is filled to the shell after, further includes: to institute
It states closed speaker and carries out simulation analysis, adjust sound of the size up to the closed speaker of the first shell production volume
Frequency performance meets the second preset requirement, records current volume and makes as the second shell of the closed speaker and holds
Product；The loudspeaker after being determined according to second shell production volume and specification makes the closed speaker.By
Filling has the compression acoustical cotton of preset vol and then secondary carries out simulation analysis simultaneously to the closed speaker in the shell
It obtains second shell and makes volume, while so that the closed speaker being finally made can satisfy low frequency performance, volume is into one
The diminution of step.
In addition, described described close according to the loudspeaker production of second shell production volume and specification after determining
After enclosed speaker, further includes: obtain the frequency response curve of the closed speaker；It is obtained according to the frequency response curve described closed
The Hz-KHz to be supplemented of formula speaker；Pass through Hz-KHz to be compensated described in Digital Signal Processing and power amplifier compensation.It is logical
It crosses Digital Signal Processing and gain compensation and cooperates power amplifier, the closed speaker being finally made is obtained flat
And the acoustics that low-frequency minimum is extremely low.
In addition, the fisrt feature parameter, specifically includes: the audio frequency of the resonance frequency of the loudspeaker, loudspeaker unit
Equivalent volume, electrical quality factor value, mechanical quality factor value, maximum power volume determined by the heat-sinking capability of loudspeaker unit
The volume that definite value and vibrating diaphragm are pushed in peak swing.
In addition, the specification for determining the loudspeaker according to the fisrt feature parameter, specifically includes: according to described
One characteristic parameter obtains the type selecting range of the loudspeaker；Acoustic pressure is exported described according to the default complete machine of the closed speaker
The loudspeaker of longest stroke specification is chosen within the scope of type selecting.
Detailed description of the invention
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not constituted to embodiment, the element in attached drawing with same reference numbers label are expressed as similar element, remove
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 is the flow chart of the production method for the closed speaker that first embodiment provides according to the present invention；
Fig. 2 is the cross-sectional view for the closed speaker that first embodiment provides according to the present invention；
Fig. 3 is the flow chart of the production method for the closed speaker that second embodiment provides according to the present invention；
Fig. 4 is the cross-sectional view for the closed speaker that second embodiment provides according to the present invention；
Fig. 5 is the flow chart of the production method for the closed speaker that third embodiment provides according to the present invention；
Fig. 6 is the structural schematic diagram of the producing device for the closed speaker that the 4th embodiment provides according to the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Each embodiment be explained in detail.However, it will be understood by those skilled in the art that in each embodiment party of the present invention
In formula, many technical details are proposed in order to make reader more fully understand the present invention.But even if without these technical details
And various changes and modifications based on the following respective embodiments, claimed technical solution of the invention also may be implemented.
The first embodiment of the present invention is related to a kind of production method of closed speaker, detailed process is as shown in Figure 1, packet
It includes:
S101: the fisrt feature parameter of the expectation audio performance for characterizing loudspeaker is obtained.
About step S101, specifically, the fisrt feature parameter is T/S parameter, is specifically included: the loudspeaker
Resonance frequency (FS), the equivalent volume (VAS) of audio frequency of loudspeaker unit, electrical quality factor value (QES), mechanical quality factor
Maximum power rating (Pe) determined by value (QMS), the heat-sinking capability of loudspeaker unit and vibrating diaphragm are pushed away in peak swing
Dynamic volume (Vd).
S102: the specification of loudspeaker is determined according to fisrt feature parameter.
About step S102, specifically, the specification of the loudspeaker is determined according to the fisrt feature parameter, it is specific to wrap
It includes: obtaining the type selecting range of the loudspeaker according to the fisrt feature parameter；According to the default complete machine of the closed speaker
Output acoustic pressure chooses the loudspeaker of longest stroke specification within the scope of the type selecting.It is understood that quasi- select loudspeaker VAS
(equivalent volume)≤target volume；Such as target volume 1L (liter), the VAS of loudspeaker will be selected less than 1L, such as 0.5L.It is defeated
Out acoustic pressure it is bigger it is (more loud) need to select the longer loudspeaker of stroke, output acoustic pressure is directly proportional to stroke.It should be noted that
Also ventional loudspeakers/loudspeaker/full frequency speaker can be used to substitute long stroke loudspeaker.
S103: the loudspeaker after determining to specification carries out simulation analysis, and acquisition can make loudspeaker meet desired design
Multiple volumes of the shell of energy, and net volume of the minimum volume as shell is chosen in multiple volumes.
About step S103, specifically, the simulation analysis used in present embodiment is for the analysis of FAE software, i.e., limited
Meta analysis.Finite element analysis is solved again after replacing challenge with better simply problem.It is regarded as domain is solved by many
The referred to as small interconnection subdomain composition of finite element, assumes suitable (better simply) approximate solution to each unit, then pushes away
Lead solve this domain it is total meet condition (equilibrium condition of such as structure), to obtain the solution of problem.Because practical problem by compared with
Simple question is replaced, so this solution not instead of Exact Solutions, approximate solution.Since most of practical problems are difficult to obtain standard
Really solution, and not only computational accuracy is high for finite element, but also adapts to various complicated shapes, thus become effective project analysis
Means.It should be noted that can be used in present embodiment artificial calculating/Excel table/table look-up/apply calculation formula
Method substitutes FAE (finite element analysis).
S104: shell is designed according to net volume, and according to the loudspeaker after specification determination and with the shell of the net volume
Closed speaker is designed, simulation analysis is carried out to closed speaker, adjusts audio of the net volume up to closed speaker of shell
Performance meets the first preset requirement, records current volume and makes volume as the first shell of closed speaker.
It is specifically, described that simulation analysis is carried out to the closed speaker about step S104, adjust the shell
Net volume meets the first preset requirement up to the audio performance of the closed speaker, specifically includes: to the closed speaker
Finite element analysis is carried out, audio performance of the net volume up to the closed speaker of the shell is adjusted in fixed dimension ratio
Meet the first preset requirement.It is noted that in the present embodiment, carrying out finite element to the closed speaker described
Before analysis, further includes: obtain the second feature parameter for characterizing the audio performance of the closed speaker；Described press is fixed
Dimension scale adjusts the net volume of the shell until the audio performance of the closed speaker meets the first preset requirement, specifically
It include: the net volume that the shell is adjusted in fixed dimension ratio, until the second feature parameter and the closed speaker
Effective work audio frequency parameter difference outside preset range.It is understood that the second feature parameter in present embodiment
For the intrinsic cavity of closed speaker, the difference of effective work audio frequency parameter of the second feature parameter and the closed speaker
Different is specially effective working frequency range of first resonance far from closed speaker outside preset range.
S105: the loudspeaker after being determined according to first shell production volume and specification makes closed speaker.
About step S105, specifically, as shown in Fig. 2, the closed speaker being arranged such just can meet low frequency
While the demand of energy, small volume.
Embodiments of the present invention are in terms of existing technologies, audio property for characterizing the expectation of loudspeaker by obtaining
The fisrt feature parameter of energy, the specification of loudspeaker is determined further according to fisrt feature parameter, so that the loudspeaker finally made
Audio performance can satisfy the demand of closed speaker；Loudspeaker after determining again to specification carries out simulation analysis, obtains energy
So that loudspeaker is met multiple volumes of the shell of desired design performance, and chooses minimum volume as shell in multiple volumes
Net volume, enable the closed speaker finally made lower casing the desired design performance for meeting loudspeaker the case where
The volume of body is small as far as possible；Shell is finally designed according to net volume, and according to the loudspeaker after specification determination and has this net
The closed speaker of the housing design of volume carries out simulation analysis to closed speaker, adjusts the net volume of shell until closed
The audio performance of speaker meets the first preset requirement, records current volume and the first shell system as closed speaker
Make volume, the loudspeaker after determining according to first shell production volume and specification makes closed speaker, so that closed speaker
Audio performance the net volume of shell is constantly adjusted via simulation analysis after can satisfy the first preset requirement, and due to being to most
What the shell of small size was adjusted, thus while so that the closed speaker finally made is can satisfy low frequency performance,
It is small in size, avoid that " low-frequency minimum is lower in closed speaker system, and required speaker volume is bigger, therefore common ultralow
Sound/woofer volume is generally larger, and small speaker does not have low frequency " the case where generation.
Second embodiment of the present invention is related to a kind of production method of closed speaker, and second embodiment is first
Further improvement has been done on the basis of embodiment, has specifically been theed improvement is that: in this second embodiment, in the record
Current volume and after making volume as the first shell of the closed speaker, further includes: production has described
The shell of first shell production volume；Compression acoustical cotton with preset vol is filled to the shell.To have described
After the compression acoustical cotton of preset vol is filled to the shell, further includes: simulation analysis is carried out to the closed speaker,
The size of the first shell production volume is adjusted until the audio performance of the closed speaker meets the second preset requirement, note
It records current volume and makes volume as the second shell of the closed speaker；It is made and is held according to the second shell
The loudspeaker after long-pending and specification determines makes the closed speaker.There is preset vol by filling in the shell
Compression acoustical cotton, reduce transmission speed of the sound inside speaker, achieve the effect that promote equivalent volume；By in the shell
Filling in vivo has the compression acoustical cotton of preset vol and then secondary carry out simulation analysis to the closed speaker and obtain the
Two shells make volume, and while so that the closed speaker being finally made can satisfy low frequency performance, volume further contracts
It is small.
The detailed process of present embodiment is as shown in Figure 3, comprising the following steps:
S201: the fisrt feature parameter of the expectation audio performance for characterizing loudspeaker is obtained.
S202: the specification of loudspeaker is determined according to fisrt feature parameter.
S203: the loudspeaker after determining to specification carries out simulation analysis, and acquisition can make loudspeaker meet desired design
Multiple volumes of the shell of energy, and net volume of the minimum volume as shell is chosen in multiple volumes.
S204: shell is designed according to net volume, and according to the loudspeaker after specification determination and with the shell of the net volume
Closed speaker is designed, simulation analysis is carried out to closed speaker, adjusts audio of the net volume up to closed speaker of shell
Performance meets the first preset requirement, records current volume and makes volume as the first shell of closed speaker.
Step S201 to step S204 in the present embodiment and step S101 of first embodiment is to step S104 class
Seemingly, in order to avoid repeating, details are not described herein again.
S205: the shell with first shell production volume is made, the compression acoustical cotton with preset vol is filled out
It is charged in shell.
About step S205, specifically, by filling the compression acoustical cotton with preset vol, drop in the shell
Transmission speed of the sound inside speaker in a low voice achievees the effect that promote equivalent volume.Acoustical cotton is a kind of manmade inorganic fibre.It adopts
It is primary raw material with natural crystals such as quartz sand, lime stone, dolomites, the industrial chemicals such as some soda ash, borax is cooperated to be melt into glass
Glass.Under melting state, cotton-shaped fine fibre is got rid of by external force blowing produced, is crossings on different level between fiber and fiber, twines mutually
Around, showing many tiny gaps together.It is understood that other hollow/hairs can also be used in present embodiment
Bubble/fiber material substitutes described acoustical cotton, and low-density/middle density/high density/can be used and do not compress/sound-absorbing material
Compression acoustical cotton is substituted, preset vol can be arranged according to actual needs, i.e. compression acoustical cotton is not limited to 100% filling institute
Shell is stated, 99.99%/99.9%/99% equal different proportions also can be used and filled up to substitute 100% shell.
S206: simulation analysis is carried out to closed speaker, the size of adjustment first shell production volume is until closed sound
The audio performance of case meets the second preset requirement, records current volume and makes as the second shell of closed speaker
Volume.
S207: the loudspeaker after being determined according to second shell production volume and specification makes closed speaker.
About step S207, specifically, as shown in figure 4, the closed speaker being finally made can satisfy low frequency performance
While, volume further reduces.
Embodiments of the present invention are in terms of existing technologies, audio property for characterizing the expectation of loudspeaker by obtaining
The fisrt feature parameter of energy, the specification of loudspeaker is determined further according to fisrt feature parameter, so that the loudspeaker finally made
Audio performance can satisfy the demand of closed speaker；Loudspeaker after determining again to specification carries out simulation analysis, obtains energy
So that loudspeaker is met multiple volumes of the shell of desired design performance, and chooses minimum volume as shell in multiple volumes
Net volume, enable the closed speaker finally made lower casing the desired design performance for meeting loudspeaker the case where
The volume of body is small as far as possible；Shell is finally designed according to net volume, and according to the loudspeaker after specification determination and has this net
The closed speaker of the housing design of volume carries out simulation analysis to closed speaker, adjusts the net volume of shell until closed
The audio performance of speaker meets the first preset requirement, records current volume and the first shell system as closed speaker
Make volume, the loudspeaker after determining according to first shell production volume and specification makes closed speaker, so that closed speaker
Audio performance the net volume of shell is constantly adjusted via simulation analysis after can satisfy the first preset requirement, and due to being to most
What the shell of small size was adjusted, thus while so that the closed speaker finally made is can satisfy low frequency performance,
It is small in size, avoid that " low-frequency minimum is lower in closed speaker system, and required speaker volume is bigger, therefore common ultralow
Sound/woofer volume is generally larger, and small speaker does not have low frequency " the case where generation.
Third embodiment of the present invention is related to a kind of production method of closed speaker, and third embodiment is second
Further improvement has been done on the basis of embodiment, has specifically been theed improvement is that: in the third embodiment, in the basis
The loudspeaker after the second shell production volume and specification are determining makes after the closed speaker, further includes: obtains
Take the frequency response curve of the closed speaker；The frequency response model to be supplemented of the closed speaker is obtained according to the frequency response curve
It encloses；Pass through Hz-KHz to be compensated described in Digital Signal Processing and power amplifier compensation.Pass through Digital Signal Processing and gain
Power amplifier is compensated and cooperated, the closed speaker being finally made is enabled to obtain flat and extremely low low-frequency minimum sound equipment
Effect.
The detailed process of present embodiment is as shown in Figure 5, comprising the following steps:
S301: the fisrt feature parameter of the expectation audio performance for characterizing loudspeaker is obtained.
S302: the specification of loudspeaker is determined according to fisrt feature parameter.
S303: the loudspeaker after determining to specification carries out simulation analysis, and acquisition can make loudspeaker meet desired design
Multiple volumes of the shell of energy, and net volume of the minimum volume as shell is chosen in multiple volumes.
S304: shell is designed according to net volume, and according to the loudspeaker after specification determination and with the shell of the net volume
Closed speaker is designed, simulation analysis is carried out to closed speaker, adjusts audio of the net volume up to closed speaker of shell
Performance meets the first preset requirement, records current volume and makes volume as the first shell of closed speaker.
S305: the shell with first shell production volume is made, the compression acoustical cotton with preset vol is filled out
It is charged in shell.
S306: simulation analysis is carried out to closed speaker, the size of adjustment first shell production volume is until closed sound
The audio performance of case meets the second preset requirement, records current volume and makes as the second shell of closed speaker
Volume.
S307: the loudspeaker after being determined according to second shell production volume and specification makes closed speaker.
Step S301 to step S307 in the present embodiment and step S201 of first embodiment is to step S207 class
Seemingly, in order to avoid repeating, details are not described herein again.
S308: obtaining the frequency response curve of closed speaker, and according to frequency response curve obtain closed speaker wait supplement frequency
Ring range.
About step S308, specifically, according to the frequency response curve that anechoic room is surveyed, the selected Hz-KHz required supplementation with
(low frequency).
S309: pass through Digital Signal Processing and power amplifier compensation Hz-KHz to be compensated.
About step S309, specifically, by Digital Signal Processing and gain compensation, power amplifier compensation is cooperated to wait for
Hz-KHz is compensated, flat and extremely low low-frequency minimum acoustics is finally obtained.Digital Signal Processing is will to simulate letter
Breath (such as sound, video and picture) is converted to the technology of digital information.DSP (Digital Signal Processing) is commonly referred to as executing these
The chip or processor of function.They may be also used for handling this information then using it as analog information output.In broad terms,
Digital Signal Processing refers to the application realization technology of digital signal processing theory, it is with digital signal processing theory, hardware
It based on technology, software technology and forms, studies digital signal processing algorithm and its implementation.
In order to make it easy to understand, the production method of speaker closed in present embodiment is described in detail below:
1, suitable loudspeaker T/S parameter (loudspeaker parameters) is selected, lesser speaker volume is obtained；
2, it is analyzed using FAE software, calculates the high cavity of rigidity, reduce the standing wave inside speaker, and retain timber
Damping characteristic；
3, it by the sound-absorbing material of compression, and strictly seals, reduces transmission speed of the sound inside speaker, reach promotion
Equivalent volume；
4, frequency range and gain ranging are compensated using high-speed dsp, driving power amplifier utilizes the resonance frequency of loudspeaker
The energy output of frequency range, expands the low frequency response of speaker near rate.
Embodiments of the present invention are in terms of existing technologies, audio property for characterizing the expectation of loudspeaker by obtaining
The fisrt feature parameter of energy, the specification of loudspeaker is determined further according to fisrt feature parameter, so that the loudspeaker finally made
Audio performance can satisfy the demand of closed speaker；Loudspeaker after determining again to specification carries out simulation analysis, obtains energy
So that loudspeaker is met multiple volumes of the shell of desired design performance, and chooses minimum volume as shell in multiple volumes
Net volume, enable the closed speaker finally made lower casing the desired design performance for meeting loudspeaker the case where
The volume of body is small as far as possible；Shell is finally designed according to net volume, and according to the loudspeaker after specification determination and has this net
The closed speaker of the housing design of volume carries out simulation analysis to closed speaker, adjusts the net volume of shell until closed
The audio performance of speaker meets the first preset requirement, records current volume and the first shell system as closed speaker
Make volume, the loudspeaker after determining according to first shell production volume and specification makes closed speaker, so that closed speaker
Audio performance the net volume of shell is constantly adjusted via simulation analysis after can satisfy the first preset requirement, and due to being to most
What the shell of small size was adjusted, thus while so that the closed speaker finally made is can satisfy low frequency performance,
It is small in size, avoid that " low-frequency minimum is lower in closed speaker system, and required speaker volume is bigger, therefore common ultralow
Sound/woofer volume is generally larger, and small speaker does not have low frequency " the case where generation.
Four embodiment of the invention is related to a kind of producing device of closed speaker, as shown in Figure 6, comprising:
At least one processor 401；And
With the memory 402 of at least one processor 401 communication connection；Wherein,
Memory 402 is stored with the instruction that can be executed by least one processor 401, instructs by least one processor
401 execute, so that the production method that at least one processor 401 is able to carry out above-mentioned closed speaker.
Wherein, memory 402 is connected with processor 401 using bus mode, and bus may include any number of interconnection
Bus and bridge, bus is by one or more processors 401 together with the various circuit connections of memory 402.Bus may be used also
With by such as peripheral equipment, voltage-stablizer, together with various other circuit connections of management circuit or the like, these are all
It is known in the art, therefore, it will not be further described herein.Bus interface provides between bus and transceiver
Interface.Transceiver can be an element, be also possible to multiple element, such as multiple receivers and transmitter, provide for
The unit communicated on transmission medium with various other devices.The data handled through processor 401 pass through antenna on the radio medium
It is transmitted, further, antenna also receives data and transfers data to processor 401.
Processor 401 is responsible for management bus and common processing, can also provide various functions, including timing, periphery connects
Mouthful, voltage adjusting, power management and other control functions.And memory 402 can be used for storage processor 401 and execute
Used data when operation.
Fifth embodiment of the invention is related to a kind of computer readable storage medium, is stored with computer program.Computer
Above method embodiment is realized when program is executed by processor.
That is, it will be understood by those skilled in the art that implement the method for the above embodiments be can be with
Relevant hardware is instructed to complete by program, which is stored in a storage medium, including some instructions are to make
It obtains an equipment (can be single-chip microcontroller, chip etc.) or processor (processor) executes side described in each embodiment of the application
The all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (10)
1. a kind of production method of closed speaker, for making including shell and being set to the close of the intracorporal loudspeaker of the shell
Enclosed speaker, which is characterized in that the production method of the closed speaker includes:
Obtain the fisrt feature parameter of the expectation audio performance for characterizing the loudspeaker；
The specification of the loudspeaker is determined according to the fisrt feature parameter；
The loudspeaker after determining to specification carries out simulation analysis, and acquisition can make the loudspeaker meet the desired design
Multiple volumes of the shell of performance, and net volume of the minimum volume as the shell is chosen in the multiple volume；
The shell is designed according to the net volume, and according to the loudspeaker after specification determination and with the net volume
Closed speaker described in housing design carries out simulation analysis to the closed speaker, adjust the net volume of the shell until
The audio performance of the closed speaker meets the first preset requirement, records current volume and as the closed sound
The first shell of case makes volume；
The loudspeaker after being determined according to first shell production volume and specification makes the closed speaker.
2. the production method of closed speaker according to claim 1, which is characterized in that described to the closed speaker
Simulation analysis is carried out, adjusts the net volume of the shell until the audio performance satisfaction first of the closed speaker is preset and wanted
It asks, specifically includes:
Finite element analysis is carried out to the closed speaker, adjusts the net volume of the shell until described in fixed dimension ratio
The audio performance of closed speaker meets the first preset requirement.
3. the production method of closed speaker according to claim 2, which is characterized in that described to the closed sound
Case carries out before finite element analysis, further includes:
Obtain the second feature parameter for characterizing the audio performance of the closed speaker；
It is described to adjust the net volume of the shell until the audio performance of the closed speaker meets the in fixed dimension ratio
One preset requirement, specifically includes:
The net volume of the shell is adjusted in fixed dimension ratio, until the second feature parameter and the closed speaker
Effectively the difference of work audio frequency parameter is outside preset range.
4. the production method of closed speaker according to claim 1, which is characterized in that record current volume described
And as the first shell of the closed speaker make volume after, further includes:
Make the shell with first shell production volume；
Compression acoustical cotton with preset vol is filled to the shell.
5. the production method of closed speaker according to claim 4, which is characterized in that will have preset vol described
Compression acoustical cotton fill to the shell after, further includes:
Simulation analysis is carried out to the closed speaker, adjusts the size of the first shell production volume until described closed
The audio performance of speaker meets the second preset requirement, records current volume and as the second shell of the closed speaker
System makees volume；
The loudspeaker after being determined according to second shell production volume and specification makes the closed speaker.
6. the production method of closed speaker according to claim 5, which is characterized in that described according to the second shell
The loudspeaker that system makees after volume and specification determination makes after the closed speaker, further includes:
Obtain the frequency response curve of the closed speaker；
The Hz-KHz to be supplemented of the closed speaker is obtained according to the frequency response curve；
Pass through Hz-KHz to be compensated described in Digital Signal Processing and power amplifier compensation.
7. the production method of closed speaker according to claim 1, which is characterized in that the fisrt feature parameter, tool
Body includes:
The resonance frequency of the loudspeaker, the equivalent volume of the audio frequency of loudspeaker unit, electrical quality factor value, mechanical quality factor
The volume that maximum power rating determined by value, the heat-sinking capability of loudspeaker unit and vibrating diaphragm are pushed in peak swing.
8. the production method of closed speaker according to claim 1, which is characterized in that described according to the fisrt feature
Parameter determines the specification of the loudspeaker, specifically includes:
The type selecting range of the loudspeaker is obtained according to the fisrt feature parameter；
Acoustic pressure is exported according to the default complete machine of the closed speaker, and raising for longest stroke specification is chosen within the scope of the type selecting
Sound device.
9. a kind of producing device of closed speaker characterized by comprising
At least one processor；And
The memory being connect at least one described processor communication；Wherein,
The memory is stored with the instruction that can be executed by least one described processor, and described instruction is by described at least one
It manages device to execute, so that at least one described processor is able to carry out such as the closed speaker as described in any in claim 1 to 8
Production method.
10. a kind of computer readable storage medium, is stored with computer program, which is characterized in that the computer program is located
The production method that reason device realizes closed speaker described in any item of the claim 1 to 8 when executing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811259891.7A CN109379669A (en) | 2018-10-26 | 2018-10-26 | Production method, device and the computer readable storage medium of closed speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811259891.7A CN109379669A (en) | 2018-10-26 | 2018-10-26 | Production method, device and the computer readable storage medium of closed speaker |
Publications (1)
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| CN109379669A true CN109379669A (en) | 2019-02-22 |
Family
ID=65389977
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811259891.7A Pending CN109379669A (en) | 2018-10-26 | 2018-10-26 | Production method, device and the computer readable storage medium of closed speaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111479208A (en) * | 2020-04-17 | 2020-07-31 | 北京百度网讯科技有限公司 | Sound cavity testing system, method, device and readable storage medium |
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| CN1481195A (en) * | 2003-07-17 | 2004-03-10 | 杨如辉 | Piston type sound box |
| JP2008252908A (en) * | 2004-09-27 | 2008-10-16 | Matsushita Electric Ind Co Ltd | Speaker system |
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