CN105939503A - Multi-mode microphone - Google Patents
Multi-mode microphone Download PDFInfo
- Publication number
- CN105939503A CN105939503A CN201610405854.7A CN201610405854A CN105939503A CN 105939503 A CN105939503 A CN 105939503A CN 201610405854 A CN201610405854 A CN 201610405854A CN 105939503 A CN105939503 A CN 105939503A
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- signal
- regulation
- microphone
- frequency
- circuit
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- 230000004044 response Effects 0.000 claims abstract description 40
- 230000035945 sensitivity Effects 0.000 claims abstract description 12
- 230000003321 amplification Effects 0.000 claims description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000005236 sound signal Effects 0.000 abstract description 3
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- 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
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention relates to a microphone, and in particular relates to a multi-mode microphone. According to the multi-mode microphone disclosed by the invention, a sound signal acquired in a sensing environment of a sound sensor is induced; an adjusting signal is output through an adjusting module; the adjusting signal is capable of adjusting and determining the sensitivity and the frequency response range of the acquired sound signal; and thus, sound output by the microphone can be well adaptive to the sensing environment.
Description
Technical field
The present invention relates to a kind of mike, particularly relate to a kind of multimode microphone.
Background technology
Owing to the environment of mike radio reception is different, needs and the model of frequency response to acoustic gain
It is different for enclosing, and existing mike reply varying environment mainly carries out merit by clock signal
The regulation of consumption, but the change adapting to environment that clock signal can not be real-time, user is for Mike
The reception of sound of the wind sound is poor.
Summary of the invention
The problem existed for prior art, now provides a kind of multimode microphone.
Concrete technical scheme is as follows:
A kind of multimode microphone, including:
Sound transducer, in order to gather and to export acoustical signal；
Regulation circuit, is connected with described sound transducer, in order to export according to described acoustical signal
One regulation signal；
Amplifying circuit, is connected, in order to root with described sound transducer, described regulation circuit respectively
According to described regulation signal, described acoustical signal is amplified, output one amplification signal；
Frequency response analyzer, is connected with described amplifying circuit, described regulation circuit respectively, uses
To receive described amplification signal, and according to described regulation Signal Regulation, amplify the frequency of signal
Response range, exports an analogue signal.
Preferably, also include
Change-over circuit, is connected with described frequency response analyzer, described in order to receive and to change
Analogue signal.
Preferably, described change-over circuit is analog to digital conversion circuit.
Preferably, described amplifying circuit includes operational amplifier.
Preferably, during described frequency response analyzer is integrated in an equalizer.
Preferably, during described frequency response analyzer is integrated in a wave filter.
Preferably, the Hz-KHz of described frequency response analyzer regulation is 200Hz-2.5KHz.
Preferably, the Hz-KHz of described frequency response analyzer regulation is 200Hz-7.5KHz.
Preferably, the sensitivity of described amplification signal is-22dBFS～-18dBFS.
Preferably, the sensitivity of described amplification signal is-36dBFS.
Technique scheme provides the benefit that:
Technique scheme can be by the sound gathered in the sensed environmental to sound transducer
Signal senses, and by an adjustment module output one regulation signal, this regulation signal can be to adopting
Sensitivity and the Hz-KHz of the acoustical signal of collection are adjusted, determine, so that mike
The sound of output can preferably adapt to sensed environmental.
Accompanying drawing explanation
Fig. 1-Fig. 2 is the schematic diagram of the embodiment of a kind of multimode microphone of the present invention.
Detailed description of the invention
It should be noted that in the case of not conflicting, following technical proposals, technical characteristic it
Between can be mutually combined.
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is further described:
Present embodiments provide a kind of multimode microphone, as it is shown in figure 1, include:
Sound transducer, in order to gather and to export acoustical signal；
Regulation circuit, is connected with described sound transducer, in order to export according to described acoustical signal
One regulation signal；
Amplifying circuit, is connected, in order to root with described sound transducer, described regulation circuit respectively
According to described regulation signal, described acoustical signal is amplified, output one amplification signal；
Frequency response analyzer, is connected with described amplifying circuit, described regulation circuit respectively, uses
To receive described amplification signal, and according to described regulation Signal Regulation, amplify the frequency of signal
Response range, exports an analogue signal.
In the present embodiment, what adjustment module can be real-time believes according to acoustical signal output one regulation
Number, the most real-time is adjusted acoustical signal, and the multiple amplifying acoustical signal is adjusted
I.e. regulate the gain of sound so that the sensitivity of acoustical signal more can adapt to the change of sensed environmental
Change, additionally can be according to the scope of regulation Signal Regulation frequency response, it is achieved that for difference
The sensed environmental different power consumption of output, it is achieved that the multi-mode of mike.
Frequency response analyzer in the present embodiment can use existing regulating frequency to respond model
The method enclosed, as long as the technical scheme being capable of regulating frequency response all can apply to this
In embodiment.
When frequency response refers to be connected one with system with the audio signal of constant voltage output,
The acoustic pressure that audio amplifier produces occurs with the change of frequency to increase or decay, phase place occurs with frequency
The phenomenon of change, this acoustic pressure and phase place are referred to as frequency and ring with the variation relation being associated of frequency
Should.Also refer to the frequency range that sound system can be reset in the range of amplitude allows, and
The variable quantity of signal is referred to as frequency response in this range, is also frequency characteristic.At specified frequency
In the range of rate, the ratio of the maxima and minima of output voltage amplitude, comes with decibels (dB)
Represent its unevenness.Frequency response typically refers to system in quality of power supply concept or metering passes
The impedance of sensor is with the change of frequency.
The system steady-state response characteristic to sinusoidal signal.Stable state is that the motion of system is in transient process
State after end.The frequency response of system is made up of amplitude-frequency characteristic and phase-frequency characteristic.Amplitude-frequency is special
Property represent that the increase and decrease of gain is with the relation of signal frequency；Phase-frequency characteristic represents under unlike signal frequency
Phase distortion relation.System reproduction signal can be evaluated more intuitively according to frequency response
Ability and the characteristic crossing noise filtering.In control theory, can be more convenient according to frequency response
Stability and other kinetic characteristics of system are analyzed on ground.The concept of frequency response is in system designs
The most critically important.The correcting unit introducing appropriate format can adjust the characteristic of frequency response, make be
The performance of system is improved.Set up the analysis on the basis of frequency response and method for designing, be referred to as
Frequency response method.
In one preferred embodiment of the present invention, as in figure 2 it is shown, also include
Change-over circuit, is connected with described frequency response analyzer, described in order to receive and to change
Analogue signal.
In one preferred embodiment of the present invention, described change-over circuit is analog to digital conversion circuit.
In one preferred embodiment of the present invention, described amplifying circuit includes operational amplifier.
In one preferred embodiment of the present invention, described frequency response analyzer is integrated in an equilibrium
In device.
In one preferred embodiment of the present invention, described frequency response analyzer is integrated in a filtering
In device.
In one preferred embodiment of the present invention, the frequency response model of described frequency response analyzer regulation
Enclose for 200Hz-2.5KHz.
In one preferred embodiment of the present invention, the frequency response model of described frequency response analyzer regulation
Enclose for 200Hz-7.5KHz.
In one preferred embodiment of the present invention, the sensitivity of described amplification signal is
-22dBFS～-18dBFS.
In one preferred embodiment of the present invention, the sensitivity of described amplification signal is-36dBFS.
In above-described embodiment, such as, if in relatively quiet environment, acoustical signal
Sensitivity and Hz-KHz can carry out adaptive adjustment according to quiet environment, the most permissible
Reduce the gain of acoustical signal, thus reduce the power consumption of mike, then convert analog signals into
Digital signal export, the mike of above-described embodiment be one realize mobilism frequency response management and
The multi-mode digital mike of sensitivity management.
To sum up, technique scheme can be by collection in the sensed environmental to sound transducer
Acoustical signal senses, and by an adjustment module output one regulation signal, this regulation signal can
Sensitivity and Hz-KHz to the acoustical signal gathered are adjusted, determine, so that wheat
The sound of gram wind output can preferably adapt to sensed environmental.
By explanation and accompanying drawing, give typical case's enforcement of the ad hoc structure of detailed description of the invention
Example, based on present invention spirit, also can make other conversion.Although foregoing invention proposes existing
Preferred embodiment, but, these contents be not intended as limitation.
For a person skilled in the art, after reading described above, various changes and modifications
Will be apparent to undoubtedly.Therefore, appending claims should be regarded as and contains the true of the present invention
Sincere figure and whole variations and modifications of scope.In Claims scope any and all etc.
The scope of valency and content, be all considered as still belonging to the intent and scope of the invention.
Claims (10)
1. a multimode microphone, it is characterised in that including:
Sound transducer, in order to gather and to export acoustical signal；
Regulation circuit, is connected with described sound transducer, in order to export according to described acoustical signal
One regulation signal；
Amplifying circuit, is connected, in order to root with described sound transducer, described regulation circuit respectively
According to described regulation signal, described acoustical signal is amplified, output one amplification signal；
Frequency response analyzer, is connected with described amplifying circuit, described regulation circuit respectively, uses
To receive described amplification signal, and according to described regulation Signal Regulation, amplify the frequency of signal
Response range, exports an analogue signal.
Multimode microphone the most according to claim 1, it is characterised in that also include
Change-over circuit, is connected with described frequency response analyzer, described in order to receive and to change
Analogue signal.
Multimode microphone the most according to claim 2, it is characterised in that described turn
Changing circuit is analog to digital conversion circuit.
Multimode microphone the most according to claim 1, it is characterised in that described in put
Big circuit includes operational amplifier.
Multimode microphone the most according to claim 1, it is characterised in that described frequency
Rate response analyzer is integrated in an equalizer.
Multimode microphone the most according to claim 1, it is characterised in that described frequency
Rate response analyzer is integrated in a wave filter.
Multimode microphone the most according to claim 1, it is characterised in that described frequency
The Hz-KHz of rate response analyzer regulation is 200Hz-2.5KHz.
Multimode microphone the most according to claim 1, it is characterised in that described frequency
The Hz-KHz of rate response analyzer regulation is 200Hz-7.5KHz.
Multimode microphone the most according to claim 1, it is characterised in that described in put
The sensitivity of big signal is-22dBFS～-18dBFS.
Multimode microphone the most according to claim 1, it is characterised in that described in put
The sensitivity of big signal is-36dBFS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610405854.7A CN105939503B (en) | 2016-06-08 | 2016-06-08 | Multi-mode microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610405854.7A CN105939503B (en) | 2016-06-08 | 2016-06-08 | Multi-mode microphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105939503A true CN105939503A (en) | 2016-09-14 |
| CN105939503B CN105939503B (en) | 2024-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610405854.7A Active CN105939503B (en) | 2016-06-08 | 2016-06-08 | Multi-mode microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105939503B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109246523A (en) * | 2018-08-02 | 2019-01-18 | 美律电子(深圳)有限公司 | Earphone |
Citations (8)
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|---|---|---|---|---|
| US20110081030A1 (en) * | 2009-10-02 | 2011-04-07 | Kun-Tien Chiang | Personal transmitter for a microphone |
| CN201805538U (en) * | 2010-09-10 | 2011-04-20 | 康佳集团股份有限公司 | Circuit for improving play sound articulation according to ambient sound, and device thereof |
| JP2014086847A (en) * | 2012-10-23 | 2014-05-12 | Toshiba Corp | Acoustic processing device, electronic apparatus, and acoustic processing method |
| CN103873625A (en) * | 2014-03-31 | 2014-06-18 | 深圳市中兴移动通信有限公司 | Method and device for increasing volume of received voice and mobile terminal |
| CN104780259A (en) * | 2014-01-14 | 2015-07-15 | 深圳富泰宏精密工业有限公司 | Automatic adjustment system and method for call voice quality |
| US20150281834A1 (en) * | 2014-03-28 | 2015-10-01 | Funai Electric Co., Ltd. | Microphone device and microphone unit |
| CN205123952U (en) * | 2015-10-23 | 2016-03-30 | 钰太芯微电子科技（上海）有限公司 | Regulating circuit and microphone based on microphone |
| CN205883501U (en) * | 2016-06-08 | 2017-01-11 | 钰太芯微电子科技（上海）有限公司 | Multi -mode microphone |
-
2016
- 2016-06-08 CN CN201610405854.7A patent/CN105939503B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110081030A1 (en) * | 2009-10-02 | 2011-04-07 | Kun-Tien Chiang | Personal transmitter for a microphone |
| CN201805538U (en) * | 2010-09-10 | 2011-04-20 | 康佳集团股份有限公司 | Circuit for improving play sound articulation according to ambient sound, and device thereof |
| JP2014086847A (en) * | 2012-10-23 | 2014-05-12 | Toshiba Corp | Acoustic processing device, electronic apparatus, and acoustic processing method |
| CN104780259A (en) * | 2014-01-14 | 2015-07-15 | 深圳富泰宏精密工业有限公司 | Automatic adjustment system and method for call voice quality |
| US20150281834A1 (en) * | 2014-03-28 | 2015-10-01 | Funai Electric Co., Ltd. | Microphone device and microphone unit |
| CN103873625A (en) * | 2014-03-31 | 2014-06-18 | 深圳市中兴移动通信有限公司 | Method and device for increasing volume of received voice and mobile terminal |
| CN205123952U (en) * | 2015-10-23 | 2016-03-30 | 钰太芯微电子科技（上海）有限公司 | Regulating circuit and microphone based on microphone |
| CN205883501U (en) * | 2016-06-08 | 2017-01-11 | 钰太芯微电子科技（上海）有限公司 | Multi -mode microphone |
Non-Patent Citations (1)
| Title |
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| 蔡秋霞: "微腔光声探测技术及其成像方法", 《光学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109246523A (en) * | 2018-08-02 | 2019-01-18 | 美律电子(深圳)有限公司 | Earphone |
| CN109246523B (en) * | 2018-08-02 | 2020-11-06 | 美律电子(深圳)有限公司 | Earphone set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105939503B (en) | 2024-01-16 |
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