CN108184180A - A kind of full range sound collector - Google Patents
A kind of full range sound collector Download PDFInfo
- Publication number
- CN108184180A CN108184180A CN201810253787.0A CN201810253787A CN108184180A CN 108184180 A CN108184180 A CN 108184180A CN 201810253787 A CN201810253787 A CN 201810253787A CN 108184180 A CN108184180 A CN 108184180A
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- China
- Prior art keywords
- microphone
- cambered surface
- fixed
- sound
- surface reflector
- Prior art date
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- 230000000694 effects Effects 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 241000209140 Triticum Species 0.000 claims 1
- 235000021307 Triticum Nutrition 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 238000003786 synthesis reaction Methods 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
- H04R1/083—Special constructions of mouthpieces
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The present invention provides a kind of full range sound collector, cambered surface reflector, fixed dynamic mount, the first microphone, second microphone and frequency dividing synthesizer including being used to reflect sound, cambered surface reflector is fixed on fixed frame, first microphone is fixed on the fixation dynamic mount at fixed frame center, the radio reception of first microphone is facing towards on the inside of cambered surface, the first microphone and second microphone is electrically connected in frequency dividing synthesizer on fixed frame, and second microphone passes through the radio reception face of cambered surface reflector and second microphone to be located at the apex on the inside of cambered surface reflector.The present invention receives sound using cambered surface using sound reflection and diffraction principle and reflects, by the radio reception of the first microphone facing towards cambered surface concave internal, and pass through the radio reception face for being set to the second microphone on the inside of cambered surface vertex, low-frequency sound is acquired, then the first microphone and the sound of second microphone acquisition are synthesized by dividing synthesizer, realize the sound collection of full frequency band.
Description
Technical field
The invention belongs to acoustic applications technical field, more particularly to a kind of full range sound collector.
Background technology
The soluble problem of technology of directional reception sound is：Filter acoustical signal in non-reception range, environmental noise
Deng into microphone；Part research staff wishes to enhance the performance that hearing aid class acoustic equipment receives acoustical signal.However direct sound
Acquisition technique exploitation is less, and in terms of noise reduction, earphone noise reduction is in the majority.
Chinese patent application：201710828743.1 a kind of MEMS condenser microphone and acoustic equipment, provide one kind
Cambered surface receives the acoustic equipment of signal, and the cambered surface reflection microphone system for being currently used for remote pickup is all in cambered surface reflector
Reflector focus position place a sound pick-up, though this can achieve the effect that remote pickup, the voice signal received
In low frequency part be extremely faint, make entire voice signal frequency range imperfect, bass wretched insufficiency, to people distortion sense
Feel.
In conclusion the problem of how efficiently solving acquisition full range sound, is that current those skilled in the art are badly in need of solution
Certainly the problem of.
Invention content
In acoustic applications technical field, low-frequency sound cannot be but acquired for cambered surface reflection acquisition sound currently on the market
The problem of, the present invention provide it is a kind of not only can noise reduction, but also senior middle school's low-frequency sound can be acquired, durable technical solution simple in structure.
In order to achieve the above object, the technical scheme is that：
A kind of full range sound collector, including being used to reflecting the cambered surface reflector of sound, fixed dynamic mount, the first microphone, the
Two microphones and frequency dividing synthesizer, cambered surface reflector are fixed on fixed frame, and the first microphone is fixed on positioned at fixed frame center
On the fixation dynamic mount at place, the radio reception of the first microphone is facing towards cambered surface inside, the frequency dividing synthesizer difference on fixed frame
The first microphone and second microphone are electrically connected, second microphone passes through the radio reception face of cambered surface reflector and second microphone
Apex on the inside of cambered surface reflector.
Preferably, the first microphone is movably fixed to by elastic webbing on fixed dynamic mount, preferably rubber band.
Preferably, fixed frame is equipped with second microphone fixing device to cambered surface reflector inside.
Preferably, fixed frame includes fixed arc and 2-5 fixed bearing, and fixed bearing is by fixing the outside emitting shape of dynamic mount
The fixed arc of connection.
Preferably, the concave surface of cambered surface reflector is pasted with enhancing reflecting layer.
The beneficial effects of the invention are as follows：
The present invention receives sound using cambered surface using sound reflection principle and reflects, by the first microphone by cleverly conceiving
Radio reception facing towards cambered surface concave internal, greatly reduce the interference of noise, improve the collection intensity to target sound, and
And low-frequency sound is adopted by being set to the radio reception face of the second microphone on the inside of cambered surface vertex using sound diffraction principle
Collection, the sound that then the first microphone and second microphone acquire are synthesized by dividing synthesizer, realize full frequency band
Sound collection.
2. the present invention can be reduced the requirement to cambered surface material sound reflection performance, be improved sound using enhancing reflecting layer
Reflecting effect, reduce the material cost of equipment.
Description of the drawings
Fig. 1 is 1 agent structure schematic diagram of embodiment；
Fig. 2 is 1 side elevational cross-section of embodiment and sound reflection effect diagram.
In figure：1st, cambered surface reflector；2nd, fixed dynamic mount；3rd, the first microphone；4th, second microphone；5th, frequency dividing synthesis
Device；6th, fixed frame；7th, rubber band；8th, second microphone fixing device；9th, fixed arc；10th, fixed bearing；F1 is cambered surface reflector
Medium-high frequency sound reflection focus；F2 is cambered surface reflector culminating point.
Specific embodiment
A kind of embodiment further illustrated the present invention with reference to the accompanying drawings.
Embodiment 1, with reference to figure 1 and Fig. 2：
A kind of full range sound collector, including be used to reflecting the cambered surface reflector 1 of sound, fixed dynamic mount 2, the first microphone 3,
Second microphone 4 and frequency dividing synthesizer 5, cambered surface reflector 1 are fixed on fixed frame 6, and the first microphone 3 is fixed on positioned at fixation
On fixation dynamic mount 2 at 6 center of frame, the radio reception of the first microphone 3 is facing towards cambered surface inside, the frequency dividing on fixed frame 6
Synthesizer 5 is electrically connected the first microphone 3 and second microphone 4, and second microphone 4 passes through cambered surface reflector 1 and the
The radio reception face of two microphones is located at the apex of 1 inside of cambered surface reflector.
First microphone is movably fixed to by rubber band 7 on fixed dynamic mount 2.Fixed frame 6 is to the inside of cambered surface reflector 1
Equipped with second microphone fixing device 8.Fixed frame 6 includes fixed arc and 3 fixed bearings 10, and fixed bearing 10 is by fixed damping
The fixed arc 9 of 2 outside emitting shape of frame connection.
The principle of the present invention is：
1）Fixed dynamic mount is by the way that in screw connection to cambered surface reflector, the first microphone is fixed on by the elastic on dynamic mount
On dynamic mount,（First microphone detachable）, microphone body head is inside, and it is anti-that internal microphone is in cambered surface cover
Penetrate focal position, cambered surface cover to the voice signal in direction, according to the cambered surface reflection characteristic of sound, by cambered surface cover reflecting focal
Microphone position in cambered surface reflector reflector focus F1 positions, microphone pick sound, the pickup mistake of the first microphone of completion
Journey；
2）Second microphone is fixed on cambered surface reflector cambered surface center position, pickup head by second microphone fixing device
To cambered surface cover opening direction, cambered surface cover institute, because of acoustic wave diffraction characteristic, prolongs cambered surface cover inner arc to low frequency signal in the voice signal of direction
Face converges at cambered surface reflector culminating point F2, and at this, point acquires sound to second microphone, completes the pickup mistake of second microphone
Journey；
3）The voice signal that first microphone and second microphone are picked up is transmitted to frequency dividing synthesizer by electric wire, to two groups of signals into
Row merges, more than, that is, it realizes and pickup is oriented to the full frequency band of cambered surface cover opening direction voice signal.The design can guarantee sound
Sound signal can guarantee the complete pickup to required direction audio signal in a certain range of directional reception.
The above is not intended to limit the scope of the present invention, and all technical spirits according to the present invention are to above
Any modification, equivalent variations and the modification that embodiment is made, in the range of still falling within technical scheme of the present invention.
Claims (5)
1. a kind of full range sound collector, it is characterised in that：Including be used to reflecting the cambered surface reflector of sound, fixed dynamic mount,
First microphone, second microphone and frequency dividing synthesizer, cambered surface reflector are fixed on fixed frame, and the first microphone is fixed in place
On fixation dynamic mount at fixed frame center, the radio reception of the first microphone is facing towards cambered surface inside, point on fixed frame
The first microphone and second microphone is electrically connected in frequency synthesizer, and second microphone passes through cambered surface reflector and the second wheat
The radio reception face of gram wind is located at the apex on the inside of cambered surface reflector.
2. full range sound collector according to claim 1, it is characterised in that：First microphone is consolidated by elastic webbing activity
It is scheduled on fixed dynamic mount.
3. full range sound collector according to claim 1, it is characterised in that：Fixed frame is equipped with to cambered surface reflector inside
Second microphone fixing device.
4. full range sound collector according to claim 1, it is characterised in that：Fixed frame includes fixed arc and 2-5 items are consolidated
Fixed bearing, fixed bearing is by fixing the outside fixed arc of emitting shape connection of dynamic mount.
5. full range sound collector according to claim 1, it is characterised in that：The concave surface of cambered surface reflector is pasted with enhancing
Reflecting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810253787.0A CN108184180A (en) | 2018-03-26 | 2018-03-26 | A kind of full range sound collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810253787.0A CN108184180A (en) | 2018-03-26 | 2018-03-26 | A kind of full range sound collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108184180A true CN108184180A (en) | 2018-06-19 |
Family
ID=62553809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810253787.0A Pending CN108184180A (en) | 2018-03-26 | 2018-03-26 | A kind of full range sound collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108184180A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108937953A (en) * | 2018-09-21 | 2018-12-07 | 佛山市威耳听力技术有限公司 | Adjustable ear-shield type hearing test device |
| CN114501283A (en) * | 2022-04-15 | 2022-05-13 | 南京天悦电子科技有限公司 | Low-complexity double-microphone directional sound pickup method for digital hearing aid |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07210180A (en) * | 1994-01-12 | 1995-08-11 | Sony Corp | Sound collecting microphone |
| JPH10224882A (en) * | 1997-02-05 | 1998-08-21 | Nippon Hoso Kyokai <Nhk> | Hybrid parabolic sound collector |
| JP2000278783A (en) * | 1999-03-26 | 2000-10-06 | Nippon Hoso Kyokai <Nhk> | Broadband directivity microphone |
| JP2006108986A (en) * | 2004-10-04 | 2006-04-20 | Glory Ltd | Sound collecting device |
| CN101140354A (en) * | 2006-09-04 | 2008-03-12 | 重庆融海超声医学工程研究中心有限公司 | Resonant vibration type supersonic transducer |
| CN101331793A (en) * | 2005-12-19 | 2008-12-24 | 雅马哈株式会社 | Sound emission and collection device |
| JP2014187685A (en) * | 2013-01-24 | 2014-10-02 | Nippon Telegr & Teleph Corp <Ntt> | Sound pickup device |
| US20150350768A1 (en) * | 2014-05-30 | 2015-12-03 | Paul D. Terpstra | Camera-Mountable Acoustic Collection Assembly |
| CN208273182U (en) * | 2018-03-26 | 2018-12-21 | 东莞市哲巫本计文化传播有限公司 | A kind of full range sound collector |
-
2018
- 2018-03-26 CN CN201810253787.0A patent/CN108184180A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07210180A (en) * | 1994-01-12 | 1995-08-11 | Sony Corp | Sound collecting microphone |
| JPH10224882A (en) * | 1997-02-05 | 1998-08-21 | Nippon Hoso Kyokai <Nhk> | Hybrid parabolic sound collector |
| JP2000278783A (en) * | 1999-03-26 | 2000-10-06 | Nippon Hoso Kyokai <Nhk> | Broadband directivity microphone |
| JP2006108986A (en) * | 2004-10-04 | 2006-04-20 | Glory Ltd | Sound collecting device |
| CN101331793A (en) * | 2005-12-19 | 2008-12-24 | 雅马哈株式会社 | Sound emission and collection device |
| CN101140354A (en) * | 2006-09-04 | 2008-03-12 | 重庆融海超声医学工程研究中心有限公司 | Resonant vibration type supersonic transducer |
| JP2014187685A (en) * | 2013-01-24 | 2014-10-02 | Nippon Telegr & Teleph Corp <Ntt> | Sound pickup device |
| US20150350768A1 (en) * | 2014-05-30 | 2015-12-03 | Paul D. Terpstra | Camera-Mountable Acoustic Collection Assembly |
| CN208273182U (en) * | 2018-03-26 | 2018-12-21 | 东莞市哲巫本计文化传播有限公司 | A kind of full range sound collector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108937953A (en) * | 2018-09-21 | 2018-12-07 | 佛山市威耳听力技术有限公司 | Adjustable ear-shield type hearing test device |
| CN108937953B (en) * | 2018-09-21 | 2024-03-29 | 广州市清晰医疗器械有限公司 | Adjustable earmuff type hearing test device |
| CN114501283A (en) * | 2022-04-15 | 2022-05-13 | 南京天悦电子科技有限公司 | Low-complexity double-microphone directional sound pickup method for digital hearing aid |
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Address after: 523000 Wanke 769 Cultural Creative Park, 35 Xinji Community Xiangyuan Road, Nancheng District, Dongguan City, Guangdong Province, 1 2-storey 216 Unit Applicant after: DONGGUAN ZHEWU BENJI ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 523000, 2-110-2, 769 cultural and creative park, No. 35, fragrant garden road, Nancheng new community, Nancheng District, Guangdong, Dongguan Applicant before: DONGGUAN ZHEWU BENJI CULTURE COMMUNICATION Co.,Ltd. |