CN103974179A - microphone correction method - Google Patents
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- CN103974179A CN103974179A CN201310744322.2A CN201310744322A CN103974179A CN 103974179 A CN103974179 A CN 103974179A CN 201310744322 A CN201310744322 A CN 201310744322A CN 103974179 A CN103974179 A CN 103974179A
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- 238000012360 testing method Methods 0.000 claims abstract description 132
- 230000035945 sensitivity Effects 0.000 claims abstract description 76
- 230000001915 proofreading effect Effects 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
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Abstract
The invention discloses a microphone correction method, which comprises the following steps: firstly, measuring the standard sensitivity of a sample microphone on a standard test sound source under different frequencies; the method comprises the steps of placing the sample microphone at a first position of a microphone testing system, measuring a first position sensitivity of the sample microphone at the first position when a testing sound source of the microphone testing system outputs a first signal from the first position, and correcting a sound pressure when the testing sound source outputs the first signal into the sound pressure of the standard testing sound source according to the standard sensitivity and the first position sensitivity.
Description
Technical field
The present invention is about a kind of microphone correction method, particularly about a kind of microphone correction method of proofreading and correct a large amount of microphones to be measured of testing.
Background technology
Microphone is a kind of radio equipment, its range of application is very extensive, in the various electronic installations of mobile phone, panel computer and notebook computer, all there is setting, in the universal society of running gear such as mobile phone now, the demand of microphone also with time cumulative, and in response to user's demand, the output of microphone promotes, volume miniaturization and quality requirements, all required elementary objects of reaching of industry for this reason.
Fraction defective when reducing microphone shipment, directly every master data of test microphone, to determine that the microphone that assembles can normal operation, and the Quality Detection of microphone before dispatching from the factory, the also raising thereupon gradually in response to consumer's quality.
Existing microphone correction method, first use a standard source of sound to send the voice signal of fixed frequency (1kHz) and fixing sound press (94dBSPL), measure a sensitivity by a standard microphone, the output sound press of the sensitivity correction standard testing source of sound of standard microphone accordingly again, and calibration standard test tone comes from the frequency response of different frequency, then the voice signal being provided by standard testing source of sound, the sensitivity of measuring sample microphone.While testing microphone to be measured, microphone to be measured is put into test environment one by one and measure its sensitivity, then compare with the sensitivity of sample microphone, as the reference frame of follow-up correction.
For coordinating huge market demand, industry there's no one who doesn't or isn't improving yield is required to accord with, but above-mentioned existing microphone method only can be delivered to one by one the high laboratory of cost by a large amount of microphones to be measured and detects, no matter be that trust laboratory is tested or manufacturer arranges laboratory voluntarily, both prices are all very high, and owing to only can test for single microphone to be measured at every turn, make correct detection very time-consuming, be unfavorable for the volume production efficiency of microphone.
Based on above-mentioned, the microphone correction method of testing that provides a kind of test that can enhance productivity simultaneously and reduce microphone to be measured to proofread and correct cost, just industry is needed badly for this reason.
Summary of the invention
An object of the present invention is to provide a kind of microphone correction method simple and easy, quick and with low cost, the correction test of microphone to be measured can a batch property be completed, and need not test and proofread and correct individually one by one in laboratory, and then promote production efficiency and the test correction cost of microphone.
For reaching above-mentioned purpose and other objects, microphone correction method of the present invention, comprises: first measure a sample microphone in the normal sensibility of a standard testing source of sound under different frequency; This sample microphone is placed in to a primary importance of a microphone test macro, one test tone of this microphone test macro comes from this primary importance while exporting a first signal, measure this sample microphone in a primary importance sensitivity of this primary importance, and according to this normal sensibility and this primary importance sensitivity, and sound press when this test source of sound is exported to this first signal is proofreaied and correct the sound press for this standard testing source of sound; Use this test source of sound after proofreading and correct to export this first signal, measure this sample microphone in a second place sensitivity of a second place; And relatively this normal sensibility and this second place sensitivity with a second place offset that must this first signal.
Another microphone correction method of the present invention, comprises: first measure a sample microphone in the normal sensibility of a standard testing source of sound under different frequency; This sample microphone is placed in to a primary importance of a microphone test macro, one test tone of this microphone test macro comes from this primary importance while exporting a first signal, measure this sample microphone in a primary importance sensitivity of this primary importance, and according to this normal sensibility and this primary importance sensitivity, and sound press when this test source of sound is exported to this first signal is proofreaied and correct the sound press for this standard testing source of sound; Use this test source of sound after proofreading and correct to export this first signal, utilize multiple these sample microphones to be placed in multiple positions of a microphone test macro simultaneously, measure those sample microphones in the sensitivity of those positions, wherein this primary importance is all not identical with those positions; And relatively the sensitivity of this normal sensibility and those positions with the offset of those positions that must this first signal.
For allow above-mentioned purpose, technical characterictic and advantage more the personage of this area know and apply, be below described in detail with several preferred embodiments of the present invention and accompanying drawing.
Brief description of the drawings
The microphone correction method flow diagram that Figure 1A to Fig. 1 D, Fig. 4 A to Fig. 4 C are the embodiment of the present invention; And
Fig. 2 A to Fig. 3 B uses the microphone test macro of microphone correction method of the present invention that schematic diagram is set.
Wherein, description of reference numerals is as follows:
201: standard source of sound
203: standard microphone
205: standard testing source of sound
207: sample microphone
209: test source of sound
211: microphone arranges platform
31,32,33,34,35,36,37: primary importance, the second place, the 3rd position, the 4th position, the 5th position, the 6th position, the 7th position
Embodiment
Below will explain content of the present invention by embodiment, but, be only explaination technology contents of the present invention and object effect thereof about the explanation in embodiment, but not in order to direct restriction the present invention.Palpus expositor, in following examples and diagram, has omitted and has not illustrated with the non-directly related element of the present invention; And in diagram the size of each element and relative position relation only in order to signal to understand, non-in order to limit enforcement ratio and size.
One embodiment of the invention are a kind of microphone correction method, and its flow chart is as shown in Figure 1A to Fig. 1 C.The microphone correction method of the present embodiment is applied in a microphone test macro.
As arranging as shown in schematic diagram of Fig. 2 A to Fig. 3 B, aforementioned microphone test macro comprises: a standard source of sound 201, a standard microphone 203, a standard testing source of sound 205, a sample microphone 207, a test source of sound 209, a microphone arrange platform 211, this microphone arranges platform 211 and has multiple setting positions 31～37, the setting position of the present embodiment has seven, that is middle primary importance 31 and be positioned at the second place 32, the 3rd position 33, the 4th position 34, the 5th position 35, the 6th position 36, the 7th position 37 of dual-side.In the present embodiment, standard testing source of sound 205 and test source of sound 209 can be an artificial mouth, full-range loudspeaker or sounding loudspeaker etc. any.
As shown in Figure 1A to Fig. 1 C, the microphone correction method of the present embodiment, its detailed process step is as follows:
Step 100, please also refer to Fig. 2 A to Fig. 2 B, and standard source of sound 201 can send fixed frequency and fixing sound press, for example, sending sound press is 94dBSPL, the signal that frequency is 1000Hz, utilize a standard microphone 203 to measure this standard source of sound 201, to obtain a reference sensitivity of standard microphone 203.Then, use the sound press of the reference sensitivity calibration standard test source of sound 205 of this standard microphone 203; In detail, when the sound press of standard testing source of sound 205 provides a voice signal, after standard microphone 203 receives, one off-gauge sensitivity can be provided, now adjust the output sound press of standard testing source of sound 205, taking the reference sensitivity of standard microphone 203 as foundation, calibration standard test source of sound 205 by this.
Step 101, please also refer to Fig. 2 C, in a standard test environment, the voice signal of different frequency is first provided with standard testing source of sound 205, and measure a sample microphone 207 and receive after the voice signal of different frequency, gained is corresponding to several normal sensibilities of different frequency, sample microphone 207 herein that is the standard sample being commonly called as (golden sample).Standard test environment is that an anechoic chamber, a nothing are rung case or a sound proof box, but be not limited to this.
Step 103, please also refer to Fig. 3 A, sample microphone 207 is arranged to microphone in microphone test macro and arranges the primary importance 31 of platform 211, make the test source of sound 209 of microphone test macro export a first signal, then measure sample microphone 207 in a primary importance sensitivity of primary importance 31 these first signals of reception, the sample microphone 207 that is now arranged at primary importance 31 can receive the sound press that this first signal transmits, again taking primary importance sensitivity and normal sensibility as criterion, and the output sound press of test source of sound 209 is proofreaied and correct to the standard sound press for standard testing source of sound 205.Wherein, first signal has a first frequency, and normal sensibility herein that is standard testing source of sound 205 be while providing the voice signal of first frequency, and sample microphone 207 receives the normal sensibility of gained.
Step 105, please also refer to Fig. 3 B, sample microphone 207 is arranged to a second place 32, the test source of sound 209 re-using after previous step is proofreaied and correct is exported first signal, measure sample microphone 207 and receive after this first signal, the second place sensitivity that generation is relevant to the second place 32.
Step 107, relatively this normal sensibility and this second place sensitivity are with a second place offset that must this first signal.
Step 109, sample microphone 207 is arranged to one the 3rd position 33, the test source of sound 209 re-using after step 103 is proofreaied and correct is exported first signal, measures sample microphone 207 and receives after this first signal, one the 3rd position-sensitivity that generation is relevant to the 3rd position 33; Relatively this normal sensibility and the 3rd position-sensitivity are with one the 3rd position compensation value that must this first signal.
Step 111, sample microphone 207 is arranged to one the 4th position 34, the test source of sound 209 re-using after step 103 is proofreaied and correct is exported first signal, measures sample microphone 207 and receives after this first signal, one the 4th position-sensitivity that generation is relevant to the 4th position 34; Relatively this normal sensibility and the 4th position-sensitivity are with one the 4th position compensation value that must this first signal.
Step 113, sample microphone 207 is arranged to one the 5th position 35, the test source of sound 209 re-using after step 103 is proofreaied and correct is exported first signal, measures sample microphone 207 and receives after this first signal, one the 5th position-sensitivity that generation is relevant to the 5th position 35; Relatively this normal sensibility and the 5th position-sensitivity are with one the 5th position compensation value that must this first signal.
Step 115, sample microphone 207 is arranged to one the 6th position 36, the test source of sound 209 re-using after step 103 is proofreaied and correct is exported first signal, measures sample microphone 207 and receives after this first signal, one the 6th position-sensitivity that generation is relevant to the 6th position 36; Relatively this normal sensibility and the 6th position-sensitivity are with one the 6th position compensation value that must this first signal.
Step 117, sample microphone 207 is arranged to one the 7th position 37, the test source of sound 209 re-using after step 103 is proofreaied and correct is exported first signal, measures sample microphone and receives after this first signal, one the 7th position-sensitivity that generation is relevant to the 7th position 37; Relatively this normal sensibility and the 7th position-sensitivity are with one the 7th position compensation value that must this first signal.
As shown in Figure 1 C, following steps 121 to step 127 receives when different frequency signals for providing, the difference of microphone to be measured required adjustment in proofreading and correct test, the visual aligning step of following step or demand and adjust and carry out order, and carry out after step 103, or after any one, carry out in step 107 to step 117.
Step 121, sample microphone 207 is arranged to primary importance, the test source of sound 209 re-using after step 103 is proofreaied and correct is exported a secondary signal, measures sample microphone 207 and receives after this secondary signal, in 31 generations of primary importance primary importance sensitivity relevant to secondary signal.Wherein, secondary signal has a second frequency, and second frequency is different from first frequency.Should be noted that, primary importance sensitivity is herein relevant to secondary signal, is different from the primary importance sensitivity relevant to first signal of step 103.
Step 123, the sound press by the test source of sound 209 of microphone test macro in the time that primary importance 31 is exported secondary signal is proofreaied and correct the sound press for this standard testing source of sound 205.
Step 125, is used the test source of sound 209 after proofreading and correct to export secondary signal, measures sample microphone 207 in the second place sensitivity of the second place 32.Should be noted that, second place sensitivity is herein relevant to secondary signal, is different from the second place sensitivity relevant to first signal of step 105.
Step 127, standard of comparison sensitivity and second place sensitivity are to obtain a second place offset of a secondary signal.Illustrate, second place offset is herein relevant to secondary signal, is different from the second place offset relevant to first signal of step 107.
It should be noted that, above-mentioned steps is only for test has the secondary signal of second frequency in the offset of the second place, but because microphone to be measured must all have been proofreaied and correct in particular frequency range and all test positions, therefore still need, sample microphone is proofreaied and correct to test with the signal of other frequencies in all positions, therefore belong to those skilled in the art of the present technique and can not spread to person easily, therefore separately do not repeat herein.
Again, as shown in Fig. 1 D, following steps 131 receive when different frequency signals to provide for another kind of mode to step 137, the difference of microphone to be measured required adjustment in proofreading and correct test, the visual aligning step of following step or demand and adjust and carry out order, and carry out after step 103, or after any one, carry out in step 107 to step 117.
Step 131, sample microphone 207 is arranged to primary importance, the test source of sound 209 re-using after step 103 is proofreaied and correct is exported a secondary signal, measures sample microphone 207 and receives after this secondary signal, in 31 generations of primary importance primary importance sensitivity relevant to secondary signal.Wherein, secondary signal has a second frequency, and second frequency is different from first frequency.Should be noted that, primary importance sensitivity is herein relevant to secondary signal, is different from the primary importance sensitivity relevant to first signal of step 103.
Step 133, relatively this normal sensibility and this primary importance sensitivity are with a primary importance offset that must this secondary signal.
Step 135, the secondary signal that uses aforementioned test source of sound 209 to export, measures sample microphone 207 in the second place sensitivity of the second place 32.Should be noted that, second place sensitivity is herein relevant to secondary signal, is different from the second place sensitivity relevant to first signal of step 105.
Step 137, standard of comparison sensitivity and second place sensitivity are to obtain a second place offset of a secondary signal.Illustrate, second place offset is herein relevant to secondary signal, is different from the second place offset relevant to first signal of step 107.
Similarly, above-mentioned steps is only for test has the secondary signal of second frequency in the offset of the second place, but because microphone to be measured must all have been proofreaied and correct in particular frequency range and all test positions, therefore still need, sample microphone is proofreaied and correct to test with the signal of other frequencies in all positions, therefore belong to those skilled in the art of the present technique and can not spread to person easily, therefore separately do not repeat herein.In addition, the different operating (step 123 and step 133) when step 121 to step 127 and step 131 to the Main Differences of two kinds of modes of step 137 is primary importance output secondary signal, the former directly proofreaies and correct sound press, and latter utilizes offset to proofread and correct.
In addition, microphone correction method of the present invention also can all arrange sample microphone 207 in primary importance 31 to the 7th position 37, that is seven sample microphones 207 are set, use the normal sensibility obtaining corresponding to the sample microphone 207 of diverse location, then use simultaneously and test and obtain each position sensitivity compensation value.
In detail, please refer to Fig. 4 A, it changes execution the following step into after above-mentioned steps 103:
Step 305, other six sample microphones 207 are also arranged to the second place 32 to the 7th position 37 simultaneously, the test source of sound 209 re-using after correction is exported first signal, measure these sample microphones 207 and receive after this first signal, a second place sensitivity, one the 3rd position-sensitivity, one the 4th position-sensitivity, one the 5th position-sensitivity, one the 6th position-sensitivity, one the 7th position-sensitivity that generation is relevant to the 7th position 37 to the second place 32; Wherein, primary importance 31 is all not identical to the 7th position 37.
Step 307, relatively this normal sensibility and this second place sensitivity to the 7th position-sensitivity to obtain respectively a second place offset, one the 3rd position compensation value, one the 4th position compensation value, one the 5th position compensation value, one the 6th position compensation value, one the 7th position compensation value of this first signal.
Compare down with the flow process of Fig. 2 A to Fig. 2 B, said method only needs to perform step 100, step 101, step 103, step 305 and step 307.
And for example, shown in Fig. 4 B, Fig. 4 C, it is respectively provides while receiving different frequency signals, two kinds of flow and methods of microphone to be measured difference of required adjustment in proofreading and correct test.Step shown in this two figure can be adjusted and carry out order according to step demand equally, carries out, or after any one, carry out in step 107 to step 117 after step 103.
As shown in Figure 4 B, step 401, is arranged at primary importance by sample microphone 207, uses the test source of sound 209 after proofreading and correct to export a secondary signal, measure sample microphone and receive after this secondary signal, in 31 generations of primary importance primary importance sensitivity relevant to secondary signal.
Step 403, the sound press by the test source of sound 209 of microphone test macro in the time that primary importance 31 is exported secondary signal is proofreaied and correct the sound press for standard testing source of sound 205.
Step 405, other six sample microphones 207 are also arranged to the second place 32 to the 7th position 37 simultaneously, use the test source of sound 209 after proofreading and correct to export secondary signal, measure those sample microphones 207 simultaneously and receive after this secondary signal, a second place sensitivity, one the 3rd position-sensitivity, one the 4th position-sensitivity, one the 5th position-sensitivity, one the 6th position-sensitivity, one the 7th position-sensitivity that generation is relevant to the 7th position 37 to the second place 32.
Step 407, relatively this normal sensibility and this second place sensitivity to the 7th position-sensitivity to obtain respectively a second place offset, one the 3rd position compensation value, one the 4th position compensation value, one the 5th position compensation value, one the 6th position compensation value, one the 7th position compensation value of this secondary signal.
Another way as shown in Figure 4 C, step 411, sample microphone 207 is arranged to primary importance, after using correction, d test source of sound 209 is exported a secondary signal, measure sample microphone and receive after this secondary signal, in 31 generations of primary importance primary importance sensitivity relevant to secondary signal.
Step 413, standard of comparison sensitivity and primary importance sensitivity, to obtain the primary importance offset relevant to secondary signal.
Step 415, other six sample microphones 207 are also arranged to the second place 32 to the 7th position 37 simultaneously, use the test source of sound 209 after proofreading and correct to export secondary signal, measure those sample microphones 207 simultaneously and receive after this secondary signal, a second place sensitivity, one the 3rd position-sensitivity, one the 4th position-sensitivity, one the 5th position-sensitivity, one the 6th position-sensitivity, one the 7th position-sensitivity that generation is relevant to the 7th position 37 to the second place 32.
Step 417, relatively this normal sensibility and this second place sensitivity are to the 7th position-sensitivity, and with reference to the primary importance offset of this secondary signal, to obtain respectively a second place offset, one the 3rd position compensation value, one the 4th position compensation value, one the 5th position compensation value, one the 6th position compensation value, one the 7th position compensation value of this secondary signal.
Execute after the step of above-mentioned microphone correction method, just can by the microphone to be measured of wish test be arranged at above-mentioned seven positions, and according to each position compensation value of abovementioned steps gained different frequency signals, use and proofread and correct test setting in the microphone to be measured of diverse location, promote and proofread and correct testing efficiency, and then reduce and proofread and correct testing cost.Should be noted that, seven above-mentioned positions are only for illustrating, and those skilled in the art can spread to method of testing and the arrangements of components of the test position of other quantity easily.
Because existing microphone test correction all need be carried out in laboratory, therefore test correction expense high, if not microphone to be measured is delivered to laboratory and is entrusted and undertaken by other people, the high laboratory of price just must be set voluntarily, the testing cost that both spend all incurs a considerable or great expense, in the time of palpus volume production microphone, just can produce the difficulty of cost, professional degree and enforceability.
Microphone correction method provided by the present invention, not only without carry out microphone test to be measured in laboratory, more can test several microphones to be measured by single test source of sound, each position compensation value providing by microphone correction method, just can reach the effect detecting one by one simultaneously.Therefore, microphone correction method of the present invention can significantly reduce the follow-up correction testing cost while producing microphone, more can simplify complicated correction testing procedure, improves productive rate and more improves production firm's competitiveness.
The present invention discloses with preferred embodiment hereinbefore, so it will be understood by those skilled in the art that this embodiment is only for describing the present invention, and should not be read as and limit the scope of the invention.It should be noted, such as, with variation and the displacement of this embodiment equivalence, all should be made as and be covered by category of the present invention.Therefore, protection scope of the present invention when with apply for a patent claim scope the person of being defined be as the criterion.
Claims (15)
1. a microphone correction method, comprises:
First measure a sample microphone in the normal sensibility of a standard testing source of sound under different frequency;
This sample microphone is placed in to a primary importance of a microphone test macro, one test tone of this microphone test macro comes from this primary importance while exporting a first signal, measure this sample microphone in a primary importance sensitivity of this primary importance, and according to this normal sensibility and this primary importance sensitivity, and sound press when this test source of sound is exported to this first signal is proofreaied and correct the sound press for this standard testing source of sound.
2. microphone correction method as claimed in claim 1, also comprises:
Use this test source of sound after proofreading and correct to export this first signal, measure this sample microphone in a second place sensitivity of a second place; And
Relatively this normal sensibility and this second place sensitivity are to obtain a second place offset of this first signal.
3. microphone correction method as claimed in claim 1, also comprises:
This sample microphone is placed in to this primary importance, and this test tone comes from this primary importance while exporting a secondary signal, measures this sample microphone in this primary importance sensitivity of this primary importance; And
According to this normal sensibility and this primary importance sensitivity, this test source of sound is exported to the sound press of this secondary signal and proofreaied and correct the sound press for this standard testing source of sound.
4. microphone correction method as claimed in claim 1, also comprises:
This sample microphone is placed in to this primary importance, and this test tone comes from this primary importance while exporting a secondary signal, measures this sample microphone in this primary importance sensitivity of this primary importance; And
Relatively this normal sensibility and this primary importance sensitivity are with a primary importance offset that must this secondary signal.
5. microphone correction method as claimed in claim 3, also comprises:
Use this test source of sound to export this secondary signal, measure this sample microphone in this second place sensitivity of this second place; And
Relatively this normal sensibility and this second place sensitivity are to obtain a second place offset of a secondary signal.
6. microphone correction method as claimed in claim 4, also comprises:
Use this test source of sound to export this secondary signal, measure this sample microphone in this second place sensitivity of this second place; And
Relatively this normal sensibility and this second place sensitivity are to obtain a second place offset of a secondary signal.
7. as the microphone correction method of claim, wherein this primary importance is a centre position, and this second place is a lateral location.
8. as the microphone correction method of claim, this first signal has a first frequency, and wherein this first frequency is 1000Hz.
9. as the microphone correction method of claim 3 or 4, this secondary signal has a second frequency.
10. microphone correction method as claimed in claim 1, also comprise and measure a sample microphone before the step of the normal sensibility of a standard testing source of sound under different frequency, use a standard source of sound to proofread and correct a standard microphone, recycle this standard microphone and proofread and correct this standard testing source of sound, wherein this standard source of sound can send fixed frequency and fixing sound press.
11. microphone correction methods as claimed in claim 7, are wherein used a standard testing source of sound to test this sample microphone, carry out in a standard test environment with this step of this normal sensibility of obtaining this sample microphone.
12. microphone correction methods as claimed in claim 9, wherein this standard test environment is that an anechoic chamber, is without ringing case or a sound proof box.
13. 1 kinds of microphone correction methods, comprise:
First measure a sample microphone in the normal sensibility of a standard testing source of sound under different frequency;
This sample microphone is placed in to a primary importance of a microphone test macro, one test tone of this microphone test macro comes from this primary importance while exporting a first signal, measure this sample microphone in a primary importance sensitivity of this primary importance, and according to this normal sensibility and this primary importance sensitivity, and sound press when this test source of sound is exported to this first signal is proofreaied and correct the sound press for this standard testing source of sound;
Use this test source of sound after proofreading and correct to export this first signal, utilize multiple these sample microphones to be placed in multiple positions of a microphone test macro simultaneously, measure multiple these sample microphones in the sensitivity of the plurality of position, wherein this primary importance is all not identical with the plurality of position; And
Relatively the sensitivity of this normal sensibility and the plurality of position is with the offset of the plurality of position that must this first signal.
14. as the microphone correction method of claim 13, also comprises:
This test source of sound is exported a secondary signal, measures this sample microphone in this primary importance sensitivity of this primary importance;
Sound press when this test tone of this microphone test macro is come to this primary importance and exports this secondary signal is proofreaied and correct the sound press for this standard testing source of sound;
Use this test source of sound after proofreading and correct to export this secondary signal, measure the plurality of sample microphone in the sensitivity of the plurality of position simultaneously; And
Relatively the sensitivity of this normal sensibility and the plurality of position with the offset of the plurality of position of a secondary signal.
15. as the microphone correction method of claim 13, also comprises:
This test source of sound is exported a secondary signal, measures this sample microphone in this primary importance sensitivity of this primary importance;
Relatively this normal sensibility and this primary importance sensitivity are with primary importance offset that must this secondary signal;
Use this test source of sound to export this secondary signal, measure the plurality of sample microphone in the sensitivity of the plurality of position simultaneously; And
Relatively the sensitivity of this normal sensibility and the plurality of position with the offset of the plurality of position of a secondary signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| TW102103379 | 2013-01-29 | ||
| TW102103379A TWI429298B (en) | 2013-01-29 | 2013-01-29 | Microphone calibration method |
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| CN103974179A true CN103974179A (en) | 2014-08-06 |
| CN103974179B CN103974179B (en) | 2017-11-28 |
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| CN201310744322.2A Expired - Fee Related CN103974179B (en) | 2013-01-29 | 2013-12-24 | Microphone correction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI651004B (en) * | 2017-08-02 | 2019-02-11 | 百辰光電股份有限公司 | Microphone testing equipment and method thereof |
| CN109391893A (en) * | 2017-08-10 | 2019-02-26 | 百辰光电股份有限公司 | Microphone test equipment and its method |
| CN114449434A (en) * | 2022-04-07 | 2022-05-06 | 荣耀终端有限公司 | Microphone calibration method and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9813830B2 (en) * | 2014-06-03 | 2017-11-07 | Intel Corporation | Automated equalization of microphones |
| TWI612821B (en) * | 2016-06-22 | 2018-01-21 | 宏相科技股份有限公司 | Automated microphone calibration systems |
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| CN101986723A (en) * | 2010-11-01 | 2011-03-16 | 瑞声声学科技(深圳)有限公司 | Test system and test method for pressure gradient microphone |
| CN102811411A (en) * | 2011-05-11 | 2012-12-05 | 英飞凌科技股份有限公司 | Microphone arrangement |
| CN102711029A (en) * | 2012-01-09 | 2012-10-03 | 瑞声声学科技(深圳)有限公司 | Testing method of intrinsic noise voltage of microphone and testing device of testing method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI651004B (en) * | 2017-08-02 | 2019-02-11 | 百辰光電股份有限公司 | Microphone testing equipment and method thereof |
| CN109391893A (en) * | 2017-08-10 | 2019-02-26 | 百辰光电股份有限公司 | Microphone test equipment and its method |
| CN114449434A (en) * | 2022-04-07 | 2022-05-06 | 荣耀终端有限公司 | Microphone calibration method and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201347566A (en) | 2013-11-16 |
| TWI429298B (en) | 2014-03-01 |
| CN103974179B (en) | 2017-11-28 |
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