CN105657587A - Microphone array component - Google Patents
Microphone array component Download PDFInfo
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- CN105657587A CN105657587A CN201410632189.6A CN201410632189A CN105657587A CN 105657587 A CN105657587 A CN 105657587A CN 201410632189 A CN201410632189 A CN 201410632189A CN 105657587 A CN105657587 A CN 105657587A
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- microphone array
- sound source
- installing hole
- array assembly
- basal disc
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Abstract
The invention relates to a microphone array component. The microphone array component comprises a basic disc and a plurality of microphones, wherein the basic disc is provided with a plurality of installation holes; the plurality of installation holes are distributed on the basic disc in a compound-hole manner; two microphones are installed in one installation hole; the microphone array component is that two microphones installed in one installation hole form a small hole; and, because a plurality of small holes are distributed on the basic disc in the compound-hole manner, precise location of a sound source position can be realized only by obtaining data for one time. Compared with the traditional single double-microphone array that position estimation is carried out after multiple sound source continuous data is collected, the microphone array component has the advantage that the location speed of a sound source is effectively increased; in addition, according to the time difference that the sound source reaches the small holes at different positions, position estimation of the sound source is simultaneously carried out by the plurality of small holes; then, a processor locates the precise position according to the position estimation result by the plurality of small holes; and thus, precise location of the sound source position is realized.
Description
Technical field
The invention belongs to robot voice identification field, particularly relate to a kind of microphone array assembly.
Background technology
The Array Microphone of traditional robot voice identification device, the modes such as the distribution mode of linear array, stereoscopic three-dimensional four-point or uniform circular array distribution that are generally adopted realize. But, traditional microphone array Distribution and localization precision is relatively low, and locating speed is slow, is unfavorable for realizing the human-computer interaction function of modern machines people.
Summary of the invention
In consideration of it, be necessary to provide a kind of accurate positioning and locating speed than microphone array assembly faster.
A kind of microphone array assembly, including offering the basal disc of multiple installing hole and multiple mike, the plurality of installing hole is the distribution in compound eye type on described basal disc, and two described mikes are arranged in a described installing hole.
Wherein in an embodiment, the camber curved surface that a surface is outwardly convex of described basal disc.
Wherein in an embodiment, the periphery of described basal disc be shaped as ellipse.
Wherein in an embodiment, the edge of described basal disc has fixing hole.
Wherein in an embodiment, the quantity of described installing hole is 9��20.
Wherein in an embodiment, the distance between the center of adjacent described installing hole is 4.5cm��5.5cm.
Wherein in an embodiment, the distance between two described mikes in described each installing hole is 1.5cm��2.5cm.
Wherein in an embodiment, also including processor, described processor electrically connects with described mike.
Wherein in an embodiment, described installing hole be shaped as regular hexagon.
Above-mentioned microphone array assembly, two mikes being arranged in an installing hole form an ommatidium. Due to the distribution in compound eye type on basal disc of multiple ommatidiums, in data acquisition, there is significantly high response, it is only necessary to disposable acquisition data, being accurately positioned sound source position can be realized. Needing to carry out location estimation again after collecting multi-acoustical continuous data relative to traditional single two-microphone array, above-mentioned microphone array assembly is effectively improved the locating speed of sound source. In addition, due to the distribution in compound eye type on basal disc of multiple ommatidiums, the time difference of the ommatidium of diverse location is arrived according to sound source, make multiple ommatidium sound source be carried out location estimation simultaneously, then by processor according to multiple ommatidiums result to location estimation, carry out location, exact position, thus realizing being accurately positioned of the position to sound source.
Accompanying drawing explanation
Fig. 1 is the planar structure schematic diagram of the microphone array assembly of an embodiment.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage become apparent from, below in conjunction with drawings and Examples, the present invention is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, the microphone array assembly 100 of an embodiment, including the basal disc 20 and the multiple mike 30 that offer multiple installing hole 10. Multiple installing holes 10 are the distribution in compound eye type on basal disc 20. Two mikes 30 are arranged in an installing hole 10. Two mikes 30 in installing hole 10 constitute an ommatidium. Above-mentioned microphone array assembly 100, by the distribution in compound eye type on basal disc 20 of multiple single ommatidiums, the microphone array assembly 100 obtained forms the structure of class biologic-organ.
The camber curved surface that one surface is outwardly convex of basal disc 10. The periphery of basal disc 10 be shaped as ellipse. Multiple installing holes 10 are opened on the camber curved surface of basal disc 10. The edge of basal disc 10 has fixing hole 12. In the present embodiment, the quantity of the 12 of fixing hole is four. Four fixing holes 12 are distributed in the edge of basal disc 10. The quantity of certain fixing hole 12 can be adjusted according to actual needs. By offering fixing hole 12, conveniently basal disc 10 is mounted and dismounted.
The quantity of installing hole 10 can be 9��20. In present embodiment, the quantity of installing hole 10 is 14. It is appreciated that the quantity of installing hole 10 can be configured according to actual needs. The shape of installing hole 10 can be regular hexagon. Certainly, the shape of installing hole 10 can also be circular or square. In the present embodiment, the distance between the center of adjacent installing hole 10 can be 4.5cm��5.5cm. Certainly, in other embodiments, the shape and size of installing hole 10 can be adjusted according to the size of mike 30. Therefore, the distance between the center of adjacent installing hole 10 can carry out respective change.
The quantity of mike 30 is the twice of installing hole 10 quantity. The distance between two mikes 30 in each installing hole 10 can be 1.5cm��2.5cm.
Microphone array assembly 100 also includes processor (not shown), and processor electrically connects with mike 30. Processor according to multiple ommatidiums result to location estimation, can carry out location, exact position, thus obtaining the position that sound source is relatively accurate, and then realizes the location positioning to sound source.
Above-mentioned microphone array assembly 100, when sound source arrives ommatidium position, owing to single ommatidium adopts two-microphone array distribution form so that the algorithm of existing two-microphone array location can well be applied. Namely the sound localization method etc. that TDOA (time delay estimadon method) localization method, High-Resolution Spectral Estimation localization method, steerable beam are formed can be adopted, it is possible to achieve the location that sound source position is rough. Microphone array assembly 100 is after location early stage realizes roughly the location estimation of sound source, due to the distribution in compound eye type on basal disc 10 of multiple ommatidiums, make multiple ommatidium sound source be carried out location estimation simultaneously, then by processor according to multiple ommatidiums result to location estimation, carry out location, exact position, thus obtaining the position that sound source is relatively accurate, and then realize the location positioning to sound source.
Such as, in having sound on the left of the microphone array assembly 100 of compound eye structural, on the left of it, mike can receive acoustic information in advance relative to the mike on right side, and then judges the orientation of sound source. And owing to the mike of left side distribution is according to receiving the angle information that sound source transmits, the vertical orientations determining sound source can be resolved further, and arrive right side microphones array according to sound source and arrive the time difference of left side microphone array, so that it is determined that the distance of sound source distance left side mike, data receiver being accurately positioned sound source thus can be realized easily.
Traditional single two-microphone array, it is necessary to multi-acoustical continuous data carries out more accurately estimating position.For traditional single two-microphone array, above-mentioned microphone array assembly 100, compound eye structural makes the response that it is significantly high in data acquisition, due to the distribution in compound eye type on basal disc 10 of multiple ommatidiums, have only to disposable acquisition data, can realize being accurately positioned remaining, improve the speed of sound localization, make to achieve in sound source band-wise processing sound source is quickly responded, so that this microphone array assembly 100 has good application in some high response products. In addition, the microphone array assembly 100 of above-mentioned compound eye type structure, owing to adopting ommatidium dual microphone, multiple ommatidium is integrated together, and one compound eye of form, so in the middle of the practical application of robot, the microphone array assembly 100 of compound eye type structure is for installing multiple microphone array groups in bulk, can install very well and dismantle, and space can be saved, reach the portability of product. The microphone array 100 adopting compound eye type structure can improve the product portability in practical application.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (9)
1. a microphone array assembly, it is characterised in that the basal disc including offering multiple installing hole and multiple mike, the plurality of installing hole is the distribution in compound eye type on described basal disc, and two described mikes are arranged in a described installing hole.
2. microphone array assembly as claimed in claim 1, it is characterised in that the camber curved surface that a surface is outwardly convex of described basal disc.
3. microphone array assembly as claimed in claim 2, it is characterised in that the periphery of described basal disc be shaped as ellipse.
4. microphone array assembly as claimed in claim 1, it is characterised in that the edge of described basal disc has fixing hole.
5. microphone array assembly as claimed in claim 1, it is characterised in that the quantity of described installing hole is 9��20.
6. microphone array assembly as claimed in claim 1, it is characterised in that the distance between the center of adjacent described installing hole is 4.5cm��5.5cm.
7. microphone array assembly as claimed in claim 1, it is characterised in that the distance between two described mikes in described each installing hole is 1.5cm��2.5cm.
8. microphone array assembly as claimed in claim 1, it is characterised in that also including processor, described processor electrically connects with described mike.
9. microphone array assembly as claimed in claim 1, it is characterised in that described installing hole be shaped as regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410632189.6A CN105657587A (en) | 2014-11-11 | 2014-11-11 | Microphone array component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410632189.6A CN105657587A (en) | 2014-11-11 | 2014-11-11 | Microphone array component |
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| Publication Number | Publication Date |
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| CN105657587A true CN105657587A (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410632189.6A Pending CN105657587A (en) | 2014-11-11 | 2014-11-11 | Microphone array component |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269470A (en) * | 2018-03-02 | 2018-07-10 | 贺宜琛 | A kind of experimental provision applied to Doppler effect and realization system |
| CN109506764A (en) * | 2018-12-12 | 2019-03-22 | 电子科技大学 | A kind of optical fiber MEMS microphone array acoustic detecting plate and system |
| CN110225430A (en) * | 2019-06-12 | 2019-09-10 | 付金龙 | A kind of noise reduction osteoacusis headset and its noise-reduction method |
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| CN201718024U (en) * | 2010-05-07 | 2011-01-19 | 中国科学院声学研究所 | Plane spiral microphone array |
| CN102508203A (en) * | 2011-11-17 | 2012-06-20 | 西北工业大学 | Novel MEMS (microelectromechanical systems) bionic acoustic vector sensor and manufacturing method thereof |
| CN102621526A (en) * | 2012-04-13 | 2012-08-01 | 湖北中试电力科技有限公司 | Honeycomb type voice frequency location sensor and location method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201718024U (en) * | 2010-05-07 | 2011-01-19 | 中国科学院声学研究所 | Plane spiral microphone array |
| CN102508203A (en) * | 2011-11-17 | 2012-06-20 | 西北工业大学 | Novel MEMS (microelectromechanical systems) bionic acoustic vector sensor and manufacturing method thereof |
| CN102621526A (en) * | 2012-04-13 | 2012-08-01 | 湖北中试电力科技有限公司 | Honeycomb type voice frequency location sensor and location method thereof |
Non-Patent Citations (3)
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| XIU FEN ZHAO, WEI ZHANG, TAO LIU YANG,CHAO SU JIANG: "A DBF Method of Localizing Accuracy Improvement and Speech Enhancement Based on A New Microphone Arrays", 《SIGNAL PROCESSING(ICSP),2012 IEEE 11TH INTERNATIONAL CONFERENCE》 * |
| 王文龙；张艳萍: ""基于四麦克风阵列的三维声源定位"", 《南京信息工程大学学报》 * |
| 赵秀粉: ""基于麦克风阵列的声源定位技术研究"", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269470A (en) * | 2018-03-02 | 2018-07-10 | 贺宜琛 | A kind of experimental provision applied to Doppler effect and realization system |
| CN108269470B (en) * | 2018-03-02 | 2024-03-08 | 贺宜琛 | Experimental device and implementation system applied to Doppler effect |
| CN109506764A (en) * | 2018-12-12 | 2019-03-22 | 电子科技大学 | A kind of optical fiber MEMS microphone array acoustic detecting plate and system |
| CN109506764B (en) * | 2018-12-12 | 2021-09-24 | 电子科技大学 | Optical fiber MEMS microphone array acoustic wave detection plate and system |
| CN110225430A (en) * | 2019-06-12 | 2019-09-10 | 付金龙 | A kind of noise reduction osteoacusis headset and its noise-reduction method |
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Application publication date: 20160608 |
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