CN102395066A - Microphone device capable of conducting adapterization from long distance - Google Patents
Microphone device capable of conducting adapterization from long distance Download PDFInfo
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- CN102395066A CN102395066A CN2011103544121A CN201110354412A CN102395066A CN 102395066 A CN102395066 A CN 102395066A CN 2011103544121 A CN2011103544121 A CN 2011103544121A CN 201110354412 A CN201110354412 A CN 201110354412A CN 102395066 A CN102395066 A CN 102395066A
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- microphone
- microphones
- shell
- guide tube
- protecgulum
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
Abstract
The invention discloses a microphone device capable of conducting adapterization from long distance, which comprises two microphones and a casing, wherein the two microphones are connected in parallel and then are placed into the casing; a front voice inlet hole is arranged in front of the casing, and a rear voice inlet hole is arranged in the side surface of the casing. Compared with the existing devices capable of conducting adapterization from long distance, in the invention, the high directionality of the microphone is realized, simultaneously, the physical dimension is greatly reduced, and no signal processing and algorithms are needed in the realization process, therefore, the record device is simple in structure, small and exquisite in dimension, low in cost and easy to realize.
Description
Technical field
The present invention relates to the sound pick up equipment technical field, relate in particular to a kind of microphone apparatus of remote pickup.
Background technology
Along with integration of three networks pilot conversion in China, the fusion of computer network, communication network and cable TV network has become a kind of trend and preliminary development and application has been arranged.As on television set, merge computer network and telecommunications network, and just need the function of the remote recording of TV set, promptly conversing easily with the other side in the position of seeing TV exchanges.
For common recording device, when microphone is recorded the target speech signal, also can record ambient noise signal, because recording distance is far away, can cause the microphone location signal to noise ratio not enough, thereby make that the sound of recording is smudgy, intelligibility is poor.Therefore, need recording device can " select " signal, pick up echo signal and suppress ambient noise signal.The principle of remote pickup is: utilize the recording device high directivity; The definite object acoustical signal; And other directions arrive the acoustical signal of recording devices and all can be pressed, thereby increasing signal to noise ratio realizes remote recording, and promptly remote recording is that the high directivity through microphone realizes.
Present remote pickup device mainly is divided into two big types: one type of rifle formula microphone that is based on the interference tube structure (microphone of using always like the reporter of TV station); Its structure is as shown in Figure 1; The characteristics of this type of microphone are to utilize loose structure disappears to sound wave interference mutually on the interference tube way to suppress the sound of non-positive entering tone; Owing to added interference tube at recording microphone leading portion, so its length is bigger, generally more than 400mm; The another kind of Array Microphone that is based on signal processing algorithm; Its structure is as shown in Figure 2; The characteristics of this type of microphone module are to need to use a plurality of microphones; And need control its directive property with method for processing signals, size also big (specifically by the decision of array microphone number), implementation method is also comparatively complicated.
In sum, the microphone of existing remote pickup is for realizing high directivity, and it is bigger to have physical dimension usually, perhaps needs signal processing algorithm, realizes comparatively complicated defective.
Summary of the invention
The technical problem that the present invention solves provides a kind of microphone apparatus of remote pickup, and is simple in structure and just can realize high directivity without signal processing algorithm.
For solving the problems of the technologies described above, the invention provides a kind of microphone apparatus of remote pickup, said microphone apparatus comprises two microphones and shell,
After said two microphones are connected in parallel, the said shell of packing into;
The front of said shell is provided with preceding tone-entering hole, and the side of said shell is provided with the back tone-entering hole.
Further, said two microphones are all directional microphone, perhaps are all omni-directional microphone.
Further, said two microphones are heart-shaped microphone, perhaps are 8 font microphones.
Further, the sensitivity of said two microphones is identical.
Further, said shell is made up of protecgulum and bonnet,
Said two microphones are respectively charged in the inner left and right microphone cavity of said protecgulum;
Tone-entering hole is the positive perforate of said protecgulum before said, and said positive perforate constitutes the preceding sound guide tube of microphone to the positive formed space of said microphone.
Further, said back tone-entering hole is the groove that open said bonnet inside, sound guide tube behind the formation microphone of the formed space of said groove and said protecgulum.
Further, the bubble-tight rubber sleeve of the guaranteed said preceding sound guide tube of the outer cover of said microphone.
Further, be provided with the bubble-tight sealing rubber pad that guarantees said back sound guide tube between said bonnet and the said microphone.
The invention provides the microphone module of little, the simple in structure and a kind of high directivity that just can realize without signal processing algorithm of a kind of physical dimension; Through using two microphones to be connected in parallel; Put into specially designed shell mechanism and encapsulation then, thereby realize the high directivity of microphone module.The pickup angle minimum of this microphone module can be accomplished 90 degree, utilizes this directional microphone module can carry out the long distance recording, and obtains voice quality preferably.Compare with traditional remote speech device; The present invention has reduced physical dimension greatly when realizing the microphone apparatus high directivity; And implementation procedure is without any need for signal processing and algorithm, makes that this recording device is simple in structure, compact size, realization with low cost and easy.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is traditional ultra directive property rifle formula microphone outline drawing;
Fig. 2 adds DSP signal processing sketch map for array microphone;
Fig. 3 is the line sketch map of parallelly connected microphone of the present invention;
Fig. 4 is the profile of microphone modular structure of the present invention;
Fig. 5 adds the structural representation of rubber sleeve for microphone of the present invention;
Fig. 6 is general heart-shaped microphone directivity pattern;
Fig. 7 is the directivity pattern of microphone module of the present invention;
Fig. 8 is the size sketch map of the microphone module of the preferred embodiment of the present invention.
Embodiment
This execution mode provides a kind of microphone apparatus of remote pickup, adopts following technical scheme: after two microphones are connected in parallel, and the shell of packing into; The front of said shell is provided with preceding tone-entering hole, and the side of said shell is provided with the back tone-entering hole.
Preferably, said two microphones are all directional microphone, perhaps are all omni-directional microphone.
Preferably, said two microphones are heart-shaped microphone, perhaps are 8 font microphones.
Preferably, the sensitivity of said two microphones is identical.
Preferably, said shell is made up of protecgulum and bonnet;
Said two microphones are respectively charged in the inner left and right microphone cavity of said protecgulum;
Tone-entering hole is the positive perforate of said protecgulum before said, and said positive perforate constitutes the preceding sound guide tube of microphone to the positive formed space of said microphone.
Said back tone-entering hole is the groove that open said bonnet inside, sound guide tube behind the formation microphone of the formed space of said groove and said protecgulum.
Wherein, said sound guide tube is specially: the entering tone passage before and after the microphone.
Further, the bubble-tight rubber sleeve of the guaranteed said preceding sound guide tube of the outer cover of said microphone.
Further, be provided with the bubble-tight sealing rubber pad that guarantees said back sound guide tube between said bonnet and the said microphone.
For making the object of the invention, technical scheme and advantage clearer, hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
As shown in Figure 3; In the microphone apparatus of the remote pickup of the embodiment of the invention (being also referred to as the microphone module in the literary composition); Two microphone Mic1 are parallelly connected with Mic2; Promptly anodal and positive pole, negative pole and negative pole link together, and then insert in the microphone location circuit and the shell shown in Figure 4 of packing into.
Wherein, Mic1 and Mic2 are preferably the microphone (being all heart, 8 fonts or omni-directional like directive property) of same type; And the sensitivity of two microphones near good more, is preferably the sensitivity difference in 1dB more.In addition, the directive property of this sound pick up equipment was best when two microphones were heart-shaped directive property, but the directive property that is all 8 fonts or omni-directional microphone also is superior to the directive property of common heart-shaped microphone.
Fig. 4 shows the integrally-built profile of the microphone apparatus of the embodiment of the invention.As shown in Figure 4, be respectively charged into after two microphone 3 parallel connections protecgulum 1 about in two microphone cavitys.There is one deck rubber sleeve 5 outside of microphone 3, and microphone 3 has just in time guaranteed the air-tightness of preceding sound guide tube 6 cavitys of microphone on protecgulum 1 after rubber sleeve 5 is compressed.Preceding sound guide tube 6 is the preceding entering tone passage of microphone 3; Fluting on the bonnet 2 is sound guide tube 7 after protecgulum 1 constitutes microphone, and back sound guide tube 7 is the back entering tone passage of microphone 3.Between bonnet 2 and microphone 3, also designed sealing rubber pad 4, to guarantee the air-tightness of sound guide tube 7 behind the microphone.
Can find out; The preceding sound guide tube 6 and back sound guide tube 7 that comprise microphone 3 in this microphone overall structure are because all there is tone-entering hole directional microphone 3 front and back, therefore; Will for its design before and after the entering tone passage, and above-mentioned forward and backward sound guide tube is the forward and backward entering tone passage of microphone.Preferably, the tone-entering hole of back entering tone passage is opened the directive property that helps improving module in the side of structural module.
Fig. 5 shows the combining structure sketch map of microphone 3 and rubber sleeve 5.As shown in Figure 5, rubber sleeve 5 entangles microphone 3, makes rubber sleeve 5 and microphone 3 become one, thereby can these two parts be assembled in the protecgulum 1 together, reduces the assembling difficulty of microphone 3.
Fig. 6 shows the directivity pattern of common heart-shaped microphone, and general heart-shaped microphone points to angle (sensitivity reduces the angular range that 6dB covers) approximately all about 180 degree.Fig. 7 provides the directivity pattern of microphone module of the present invention.As can beappreciated from fig. 7, the sensing angle of this microphone module has been reduced to 90 degree basically, has improved the directive property of microphone greatly, helps improving the recording quality of remote recording.
Fig. 8 has provided the size of the microphone module of the preferred embodiment of the present invention.Wherein, the length dimension of module is mainly decided by the distance of two microphones, and when general module obtained better directive property, two microphone distance ranges were 15mm-50mm; Then mainly by the height decision of selecting microphone for use, used microphone height is 5mm to outer casing thickness among Fig. 8; The height dimension of module then can be considered its concrete size according to factors such as module length, outward appearances.
The present invention has following beneficial effect through tone-entering hole and back tone-entering hole before offering with the side in front: when sound during from positive incident, the sensitivity that two microphones are recorded sound is identical, can increase to some extent through sensitivity behind the microphone of the identical parallel connection of two sensitivity; And when sound incident from the side; Suppose sound incident from the left side, it is relatively large that the left side microphone is recorded the sensitivity of sound so, and that the right side microphone is recorded the sensitivity of sound is just less relatively; The sensitivity that sensitivity is recorded sound after two microphone parallel connections less than the right side microphone; Therefore likewise, the sound of incident also has effect same from the right side, will make this module little to the come sensitivity of sound of side.
More than be merely preferred case study on implementation of the present invention; Be not limited to the present invention; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof, those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (8)
1. the microphone apparatus of a remote pickup is characterized in that, said microphone apparatus comprises two microphones and shell,
After said two microphones are connected in parallel, the said shell of packing into;
The front of said shell is provided with preceding tone-entering hole, and the side of said shell is provided with the back tone-entering hole.
2. microphone apparatus as claimed in claim 1 is characterized in that,
Said two microphones are all directional microphone, perhaps are all omni-directional microphone.
3. microphone apparatus as claimed in claim 1 is characterized in that,
Said two microphones are heart-shaped microphone, perhaps are 8 font microphones.
4. like claim 1,2 or 3 described microphone apparatus, it is characterized in that,
The sensitivity of said two microphones is identical.
5. microphone apparatus as claimed in claim 1 is characterized in that said shell is made up of protecgulum and bonnet,
Said two microphones are respectively charged in the inner left and right microphone cavity of said protecgulum;
Tone-entering hole is the positive perforate of said protecgulum before said, and said positive perforate constitutes the preceding sound guide tube of microphone to the positive formed space of said microphone.
6. microphone apparatus as claimed in claim 5 is characterized in that,
Said back tone-entering hole is the groove that open said bonnet inside, sound guide tube behind the formation microphone of the formed space of said groove and said protecgulum.
7. like claim 5 or 6 described microphone apparatus, it is characterized in that,
The bubble-tight rubber sleeve of the guaranteed said preceding sound guide tube of the outer cover of said microphone.
8. microphone apparatus as claimed in claim 6 is characterized in that,
Be provided with the bubble-tight sealing rubber pad that guarantees said back sound guide tube between said bonnet and the said microphone.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110354412.1A CN102395066B (en) | 2011-11-10 | 2011-11-10 | A kind of microphone apparatus of remote pickup |
| PCT/CN2012/071171 WO2013067782A1 (en) | 2011-11-10 | 2012-02-15 | Far-distance sound pickup microphone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110354412.1A CN102395066B (en) | 2011-11-10 | 2011-11-10 | A kind of microphone apparatus of remote pickup |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102395066A true CN102395066A (en) | 2012-03-28 |
| CN102395066B CN102395066B (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110354412.1A Active CN102395066B (en) | 2011-11-10 | 2011-11-10 | A kind of microphone apparatus of remote pickup |
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| CN (1) | CN102395066B (en) |
| WO (1) | WO2013067782A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152661A (en) * | 2012-12-14 | 2013-06-12 | 上海华勤通讯技术有限公司 | Microphone sealing device |
| CN104185118A (en) * | 2014-09-05 | 2014-12-03 | 赵平 | All-directional pickup device |
| CN104349226A (en) * | 2013-07-31 | 2015-02-11 | 上海耐普微电子有限公司 | Microphone assembly |
| CN105898635A (en) * | 2016-04-26 | 2016-08-24 | 宁波桑德纳电子科技有限公司 | Pickup device for outdoor long-distance use |
| WO2017088632A1 (en) * | 2015-11-25 | 2017-06-01 | 华为技术有限公司 | Recording method, recording playing method and apparatus, and terminal |
| TWI596950B (en) * | 2016-02-03 | 2017-08-21 | 美律實業股份有限公司 | Directional sound recording module |
| CN107302734A (en) * | 2016-04-15 | 2017-10-27 | 美律电子(深圳)有限公司 | Directive property recording module |
| CN110868669A (en) * | 2018-08-28 | 2020-03-06 | 安普新股份有限公司 | Directional microphone |
| US10887686B2 (en) | 2018-08-28 | 2021-01-05 | Ampacs Corporation | Directional microphone |
| CN112929800A (en) * | 2021-02-04 | 2021-06-08 | 歌尔科技有限公司 | Sound pickup device, electronic equipment and sound pickup method |
| CN113423038A (en) * | 2021-06-02 | 2021-09-21 | 台湾立讯精密有限公司 | Radio device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104244137B (en) * | 2014-09-30 | 2017-11-17 | 广东欧珀移动通信有限公司 | The method and system of distant view recording effect are lifted in a kind of video process |
| CN111432053A (en) * | 2020-03-27 | 2020-07-17 | 歌尔微电子有限公司 | Mobile terminal capable of realizing remote pickup |
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| CN2303418Y (en) * | 1997-07-25 | 1999-01-06 | 程滋颐 | Low distortion and low noise mouth-piece |
| CN2397690Y (en) * | 1999-10-11 | 2000-09-20 | 秦枫 | Forking microphone for interview |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152661B (en) * | 2012-12-14 | 2017-05-10 | 上海华勤通讯技术有限公司 | Microphone sealing device |
| CN103152661A (en) * | 2012-12-14 | 2013-06-12 | 上海华勤通讯技术有限公司 | Microphone sealing device |
| CN104349226A (en) * | 2013-07-31 | 2015-02-11 | 上海耐普微电子有限公司 | Microphone assembly |
| CN104185118A (en) * | 2014-09-05 | 2014-12-03 | 赵平 | All-directional pickup device |
| US10667048B2 (en) | 2015-11-25 | 2020-05-26 | Huawei Technologies Co., Ltd. | Recording method, recording play method, apparatuses, and terminals |
| US10834503B2 (en) | 2015-11-25 | 2020-11-10 | Huawei Technologies Co., Ltd. | Recording method, recording play method, apparatuses, and terminals |
| WO2017088632A1 (en) * | 2015-11-25 | 2017-06-01 | 华为技术有限公司 | Recording method, recording playing method and apparatus, and terminal |
| TWI596950B (en) * | 2016-02-03 | 2017-08-21 | 美律實業股份有限公司 | Directional sound recording module |
| CN107302734A (en) * | 2016-04-15 | 2017-10-27 | 美律电子(深圳)有限公司 | Directive property recording module |
| CN105898635B (en) * | 2016-04-26 | 2019-02-12 | 宁波桑德纳电子科技有限公司 | A kind of sound pick up equipment that outdoor uses at a distance |
| CN105898635A (en) * | 2016-04-26 | 2016-08-24 | 宁波桑德纳电子科技有限公司 | Pickup device for outdoor long-distance use |
| CN110868669A (en) * | 2018-08-28 | 2020-03-06 | 安普新股份有限公司 | Directional microphone |
| US10887686B2 (en) | 2018-08-28 | 2021-01-05 | Ampacs Corporation | Directional microphone |
| CN112929800A (en) * | 2021-02-04 | 2021-06-08 | 歌尔科技有限公司 | Sound pickup device, electronic equipment and sound pickup method |
| CN112929800B (en) * | 2021-02-04 | 2022-08-12 | 歌尔科技有限公司 | Sound pickup device, electronic equipment and sound pickup method |
| CN113423038A (en) * | 2021-06-02 | 2021-09-21 | 台湾立讯精密有限公司 | Radio device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013067782A1 (en) | 2013-05-16 |
| CN102395066B (en) | 2018-05-01 |
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Effective date of registration: 20220114 Address after: 518101 room 602, No. 11, Lane 6, liaokeng new village, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Li Jinlai Address before: 251702 Baoli village, Hefang Township, Huimin County, Binzhou City, Shandong Province Patentee before: Shandong Huimin Changming Textile Co.,Ltd. |
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