CN116528138B - Test method and system for acoustic TS parameters - Google Patents
Test method and system for acoustic TS parameters Download PDFInfo
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- CN116528138B CN116528138B CN202310790038.2A CN202310790038A CN116528138B CN 116528138 B CN116528138 B CN 116528138B CN 202310790038 A CN202310790038 A CN 202310790038A CN 116528138 B CN116528138 B CN 116528138B
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- 238000010998 test method Methods 0.000 title claims abstract description 6
- 238000012360 testing method Methods 0.000 claims abstract description 92
- 239000000178 monomer Substances 0.000 claims abstract description 47
- 238000013507 mapping Methods 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 17
- 230000008859 change Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 description 15
- 238000012545 processing Methods 0.000 description 4
- 238000013142 basic testing Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- H04R29/00—Monitoring arrangements; Testing arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
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- Acoustics & Sound (AREA)
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The application particularly relates to a test method and a test system for acoustic TS parameters, wherein the method comprises the following steps: firstly, selecting an acoustic monomer with standard TS parameters, and then testing the resonant frequency f1 to define a reference resonant frequency; and then, testing the reference resonant frequency regularly before testing, checking and updating the volume parameters of the equivalent vibration area and the front cavity according to the mapping relation between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity and the reference resonant frequency tested regularly, and then jointly calculating the acoustic T/S parameter by means of the detected and updated equivalent vibration area and the volume parameters of the front cavity, the frequency parameter and the impedance parameter of the tested acoustic monomer when the front cavity is not sealed and the tested resonant frequency after the front cavity is sealed.
Description
Technical Field
The application belongs to the field of sound control, and particularly relates to a method and a system for testing TS parameters of sound.
Background
In the related art, the TS parameter test of the sound box needs to test many data items, and a deviation of the test of any data item has a great influence on the total test. In particular, it is relevant to determine some basic electric signals or frequency values, and because the basic test parameters need to be used multiple times in calculating the TS parameters, errors occur in some basic parameters, which have a great influence on the result.
In the related prior art, basic parameters are measured first in a test, and then corresponding TS parameters are calculated according to a standard formula of acoustic system equipment. The problem with this type of technique is that the equivalent vibration area and the volume of the front cavity are generally not easily obtained by means of a test, but are input by means of a constant value. I.e. the equivalent vibration area and the front cavity volume are fixed in the test. However, in practical testing, because the testing equipment is slightly changed in use and the testing conditions are different, the equivalent vibration area and the front cavity volume are not generally fixed, and the equivalent vibration area and the front cavity volume are processed by constant values in this way, the parameter testing error can be kept small in a short period of time. However, in long-term use, the actual test values deviate, even with very large errors, which are not well-resolved in the prior art.
Disclosure of Invention
The application aims to provide a method and a system for testing acoustic TS parameters, so as to solve the problems in the background art.
In order to solve the technical problems, the application provides the following technical scheme:
firstly, selecting an acoustic monomer with a standard TS parameter, then testing the resonance frequency f1 of the acoustic monomer with the standard TS parameter after the front cavity is sealed, and defining the test resonance frequency f1 of the acoustic monomer with the standard TS parameter after the front cavity is sealed as a reference resonance frequency; and then, regularly testing the reference resonant frequency before testing, wherein the equivalent vibration area and the volume parameter of the front cavity are initially set in the testing process, the frequency parameter and the impedance parameter of the tested sound monomer when the front cavity is not sealed are tested, then the resonant frequency of the tested sound monomer is tested after the front cavity is sealed, the volume parameter of the equivalent vibration area and the front cavity is checked and updated according to the mapping relation between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity and the reference resonant frequency tested regularly, and then the sound T/S parameter is jointly calculated by the tested sound monomer after the front cavity is sealed and the volume parameter of the front cavity, the frequency parameter and the impedance parameter of the tested sound monomer after the detection and updating.
Further, the reference resonant frequency is tested periodically, wherein each test of the reference resonant frequency comprises continuously testing the resonant frequency for a plurality of times in a fixed time period after the front cavity is sealed by an acoustic monomer with standard TS parameters to obtain a time sequence value of a plurality of resonant frequencies, fitting a change function of the resonant frequency through the time sequence values of the plurality of resonant frequencies, calculating the integral quantity of the change function in the fixed time period, and taking the integral quantity as a test result.
Further, the mapping relation between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity is established through statistical data, specifically, the mapping relation between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity is established through statistical data, namely, each test of the reference resonant frequency comprises the steps of continuously testing the resonant frequency for a plurality of times in a fixed time period after the front cavity is sealed by an acoustic monomer with standard TS parameters to obtain time sequence values of a plurality of resonant frequencies, fitting a change function of the resonant frequency through the time sequence values of the plurality of resonant frequencies, and calculating the integral of the change function in the fixed time period, wherein the mapping relation between the integral and the equivalent vibration area or the volume of the front cavity is the mapping relation between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity.
Further, according to the mapping relation between the reference resonance frequency and the equivalent vibration area amount or the volume amount of the front cavity and the reference resonance frequency which is tested regularly, checking and updating the volume parameters of the equivalent vibration area and the front cavity, specifically, firstly, testing the reference resonance frequency, namely, continuously testing the resonance frequency for a plurality of times in a fixed time period after the front cavity is sealed by using an acoustic monomer with a standard TS parameter to obtain a plurality of time sequence values of the resonance frequency, fitting a change function of the resonance frequency through the time sequence values of the plurality of resonance frequencies, calculating the integral amount of the change function in the fixed time period, and then comparing whether the integral amount corresponds to the integral amount corresponding to the equivalent vibration area amount or the volume amount parameter of the front cavity which is initially set in the mapping relation, and if the integral amount corresponds, checking is passed, and the equivalent vibration area or the volume parameter of the front cavity does not need to be modified; otherwise, the equivalent vibration area or the volume parameter of the front cavity is correspondingly modified according to the integral quantity and the difference value of the integral quantity corresponding to the preset equivalent vibration area or the volume parameter of the front cavity in the mapping relation.
The system for testing the acoustic TS parameters comprises test fixing equipment, test electric equipment and an upper computer, wherein the upper computer is electrically connected with the test electric equipment and is used for acquiring the test parameters and analyzing and processing data.
Further, the analysis processing of the data by the upper computer comprises the steps of establishing a mapping relation between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity through statistical data, checking and updating the volume parameters of the equivalent vibration area and the front cavity according to the mapping relation between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity and the reference resonant frequency tested regularly, and calculating the acoustic TS parameters by means of the detected and updated volume parameters of the equivalent vibration area and the front cavity, the frequency parameters and the impedance parameters of the measured acoustic monomer when the front cavity is not sealed and the measured resonant frequency of the measured acoustic monomer after the front cavity is sealed.
Advantageous effects
The application can realize the dynamic modification of the equivalent vibration area or the volume parameter of the front cavity, and calculates the acoustic TS parameter by means of the latest parameter, thereby solving the problem of 'input through a constant value' in the prior art and improving the accuracy of parameter calculation.
Drawings
Fig. 1 is a flowchart of a method for testing acoustic TS parameters according to the present application.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the acoustic TS parameter test in the prior art, the equivalent vibration area and the volume of the front cavity are generally not easy to obtain in a test mode, but are input by a constant value, but in the actual test, because the test equipment can be slightly changed in the use process, and the test conditions are different, the equivalent vibration area and the volume of the front cavity are generally not fixed, and the equivalent vibration area and the volume of the front cavity are processed by the constant value, the parameter test error can be kept small in a short period, but the actual test value can deviate from even very large error in long-term application, therefore, in the implementation, the application discloses a test method of acoustic TS parameters, which comprises the steps of constructing basic test equipment, namely test fixing equipment and test electric equipment, firstly selecting an acoustic monomer with standard TS parameters, then testing the resonance frequency f1 of the acoustic monomer with the standard TS parameters after the front cavity is sealed, and defining the acoustic monomer with the standard TS parameters as a reference resonance frequency after the front cavity is sealed; the mapping relation between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity is established through statistical data, specifically, the mapping relation between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity is established through statistical data, namely, each test of the reference resonant frequency comprises the steps of continuously testing the resonant frequency for a plurality of times in a fixed time period after the front cavity is sealed by an acoustic monomer with standard TS parameters to obtain time sequence values of a plurality of resonant frequencies, fitting a change function of the resonant frequency through the time sequence values of the plurality of resonant frequencies, calculating the integral quantity of the change function in the fixed time period, the mapping relation between the integral quantity and the equivalent vibration area quantity or the volume quantity of the front cavity is that the mapping relation between the integral quantity and the equivalent vibration area quantity or the volume quantity of the front cavity in a fixed time length of the reference resonant frequency; the method comprises the steps of firstly, setting equivalent vibration area and volume parameters of a front cavity at first in a test process, testing frequency parameters and impedance parameters of the tested sound monomer when the front cavity is not sealed, then testing the resonance frequency of the tested sound monomer after the front cavity is sealed, checking and updating the volume parameters of the equivalent vibration area and the front cavity according to the mapping relation between the reference resonance frequency and the equivalent vibration area or the volume parameters of the front cavity, firstly, performing the test of the reference resonance frequency, namely, obtaining the time sequence values of the multiple resonance frequencies at the constant resonance frequency after the front cavity is sealed by the sound monomer with the standard TS parameter, and then, if the volume parameters of the equivalent vibration area or the volume parameters of the front cavity are not compared by the mapping relation between the equivalent vibration area or the volume parameters of the front cavity, and the volume parameters of the equivalent vibration area or the front cavity are not compared according to the mapping relation between the equivalent vibration area or the volume parameters of the equivalent vibration area required to be tested; otherwise, the equivalent vibration area or the volume parameter of the front cavity is correspondingly modified according to the difference value of the integral quantity corresponding to the equivalent vibration area or the volume parameter of the front cavity which is preset in the integral quantity and the mapping relation, and then the acoustic TS parameter is calculated together by means of the detected and updated equivalent vibration area, the volume parameter of the front cavity, the frequency parameter and the impedance parameter of the measured acoustic monomer when the front cavity is not sealed, and the measured resonance frequency of the measured acoustic monomer after the front cavity is sealed, and can be calculated according to the standard formula of the conventional acoustic system equipment without repeated description.
The application can realize the dynamic modification of equivalent vibration area or the volume parameter of the front cavity, and calculate the acoustic TS parameter by means of the latest parameter, thereby solving the problem of 'input through constant value' in the prior art and improving the accuracy of parameter calculation.
In the embodiment to be protected, as shown in fig. 1, the application discloses a method for testing acoustic TS parameters, which comprises the steps of firstly selecting an acoustic monomer with standard TS parameters, then testing the resonance frequency f1 of the acoustic monomer with standard TS parameters after sealing the front cavity, and defining the resonance frequency f1 of the acoustic monomer with standard TS parameters after sealing the front cavity as a reference resonance frequency; and then, regularly testing the reference resonant frequency before testing, wherein the equivalent vibration area and the volume parameter of the front cavity are initially set in the testing process, the frequency parameter and the impedance parameter of the tested sound monomer when the front cavity is not sealed are tested, then the resonant frequency of the tested sound monomer is tested after the front cavity is sealed, the volume parameter of the equivalent vibration area and the front cavity is checked and updated according to the mapping relation between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity and the reference resonant frequency tested regularly, and then the sound TS parameter is jointly calculated by the equivalent vibration area and the volume parameter of the front cavity after the detection and updating, the frequency parameter and the impedance parameter of the tested sound monomer when the front cavity is not sealed and the tested resonant frequency of the tested sound monomer after the front cavity is sealed.
The reference resonant frequency is preferably tested periodically, wherein each test of the reference resonant frequency comprises continuously testing the resonant frequency for a plurality of times for a fixed period of time after the front cavity is sealed by an acoustic monomer with standard TS parameters to obtain a time sequence value of a plurality of resonant frequencies, fitting a change function of the resonant frequencies through the time sequence values of the plurality of resonant frequencies, calculating the integral quantity of the change function for the fixed period of time, and taking the integral quantity as a test result.
The method comprises the steps of establishing a mapping relation between a reference resonant frequency and an equivalent vibration area or a front cavity volume through statistical data, and specifically comprises the steps of establishing a mapping relation between the reference resonant frequency and the equivalent vibration area or the front cavity volume through statistical data, namely, each test of the reference resonant frequency comprises the steps of continuously testing the resonant frequency for a plurality of times in a fixed time period after a sound monomer with standard TS parameters is sealed in the front cavity, obtaining a time sequence value of a plurality of resonant frequencies, fitting a change function of the resonant frequency through the time sequence value of the plurality of resonant frequencies, and calculating the integral of the change function in the fixed time period, wherein the mapping relation between the integral and the equivalent vibration area or the front cavity volume is the mapping relation between the reference resonant frequency and the equivalent vibration area or the front cavity volume in the fixed time period.
The method comprises the steps of firstly testing the reference resonance frequency, namely obtaining time sequence values of a plurality of resonance frequencies by continuously testing the resonance frequency for a plurality of times in a fixed time period after sealing the front cavity by using an acoustic monomer with a standard TS parameter, fitting a change function of the resonance frequency through the time sequence values of the plurality of resonance frequencies, calculating the integral quantity of the change function in the fixed time period, and then comparing whether the integral quantity corresponds to the integral quantity corresponding to the equivalent vibration area quantity or the front cavity volume parameter which is originally set in the mapping relation, and if so, the test is passed without modifying the equivalent vibration area or the front cavity volume parameter; otherwise, the equivalent vibration area or the volume parameter of the front cavity is correspondingly modified according to the integral quantity and the difference value of the integral quantity corresponding to the preset equivalent vibration area or the volume parameter of the front cavity in the mapping relation.
In addition, in order to realize the test method of the acoustic TS parameter, the application also discloses a test system of the acoustic TS parameter, which comprises test fixing equipment and test electric equipment, wherein the test fixing equipment is used for fixing the acoustic monomer and sealing the front cavity, the test electric equipment is used for testing the electric parameter of the acoustic monomer, the test fixing equipment and the test electric equipment are specific to the existing equipment and are not repeated, and in addition, the test system of the acoustic TS parameter also comprises an upper computer, and the upper computer is electrically connected with the test electric equipment and is used for acquiring the test parameter and analyzing and processing the data.
The analysis processing of the upper computer on the data comprises the steps of establishing a mapping relation between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity through statistical data, checking and updating the volume parameters of the equivalent vibration area and the front cavity according to the mapping relation between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity and the reference resonant frequency tested regularly, and calculating sound TS parameters by means of the detected and updated volume parameters of the equivalent vibration area and the front cavity, the frequency parameters and the impedance parameters of the tested sound monomer when the front cavity is not sealed and the tested resonance frequency of the tested sound monomer after the front cavity is sealed.
The program code for the functions of the upper computer of the present application is stored on a machine readable medium, which can be a tangible medium that can contain, or store the program for use by or in connection with the instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. To provide for interaction with a user, the host computer described herein may be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
It will be appreciated by those skilled in the art that the present application can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are illustrative in all respects, and not exclusive. All changes that come within the scope of the application or equivalents thereto are intended to be embraced therein.
Claims (4)
1. The test method for acoustic TS parameters is characterized in that an acoustic monomer with standard TS parameters is selected, then the acoustic monomer with the standard TS parameters is subjected to front cavity sealing and then the resonance frequency f1 is tested, the acoustic monomer with the standard TS parameters is defined as a reference resonance frequency, and the mapping relation between the reference resonance frequency and the equivalent vibration area or the volume of the front cavity is established through statistical data; and then, regularly testing the reference resonant frequency before testing, wherein the equivalent vibration area and the volume parameter of the front cavity are initially set in the testing process, the frequency parameter and the impedance parameter of the tested sound monomer when the front cavity is not sealed are tested, then the resonant frequency of the tested sound monomer is tested after the front cavity is sealed, the volume parameter of the equivalent vibration area and the front cavity is checked and updated according to the mapping relation between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity and the reference resonant frequency tested regularly, and then the sound TS parameter is jointly calculated by the equivalent vibration area and the volume parameter of the front cavity after the detection and updating, the frequency parameter and the impedance parameter of the tested sound monomer when the front cavity is not sealed and the tested resonant frequency of the tested sound monomer after the front cavity is sealed.
2. The method for testing acoustic TS parameters according to claim 1, wherein the testing of the reference resonant frequency is performed periodically, wherein each test of the reference resonant frequency includes continuously testing the resonant frequency for a fixed period of time after the front cavity is sealed with an acoustic monomer having a standard TS parameter a plurality of times to obtain time-series values of a plurality of resonant frequencies, fitting a variation function of the resonant frequency by the time-series values of the plurality of resonant frequencies, and calculating an integral amount of the variation function for the fixed period of time, with the integral amount as a test result.
3. The method for testing acoustic TS parameters according to claim 1, wherein the mapping relationship between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity is established by statistical data, specifically comprising establishing a mapping relationship between the reference resonant frequency and the equivalent vibration area or the volume of the front cavity by statistical data, that is, each test of the reference resonant frequency includes continuously testing the resonant frequency for a plurality of times for a fixed period after the front cavity is sealed with an acoustic monomer having the standard TS parameter to obtain time-series values of a plurality of resonant frequencies, fitting a variation function of the resonant frequency by the time-series values of the plurality of resonant frequencies, and calculating the mapping relationship between the integral quantity and the equivalent vibration area or the volume of the front cavity for the fixed period, that is, the mapping relationship between the integral quantity and the equivalent vibration area or the volume of the front cavity for the reference resonant frequency.
4. The method for testing acoustic TS parameters according to claim 1, wherein the testing of the reference resonant frequency is performed first according to a mapping relation between the reference resonant frequency and an equivalent vibration area amount or a volume amount of the front cavity and a reference resonant frequency tested periodically, and the testing of the reference resonant frequency is performed first, including continuously testing the resonant frequency for a plurality of times for a fixed period of time after sealing the front cavity with an acoustic monomer having a standard TS parameter to obtain a time series value of a plurality of resonant frequencies, fitting a change function of the resonant frequency by the time series value of the plurality of resonant frequencies, calculating an integral amount of the change function for the fixed period of time, and then comparing whether the integral amount corresponds to an equivalent vibration area amount originally set in the mapping relation or an integral amount corresponding to the volume amount parameter of the front cavity, and if the integral amount corresponds, the testing is passed, without modifying the equivalent vibration area or the volume parameter of the front cavity; otherwise, the equivalent vibration area or the volume parameter of the front cavity is correspondingly modified according to the integral quantity and the difference value of the integral quantity corresponding to the preset equivalent vibration area or the volume parameter of the front cavity in the mapping relation.
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