JP5423370B2 - 音源探査装置 - Google Patents
音源探査装置 Download PDFInfo
- Publication number
- JP5423370B2 JP5423370B2 JP2009280115A JP2009280115A JP5423370B2 JP 5423370 B2 JP5423370 B2 JP 5423370B2 JP 2009280115 A JP2009280115 A JP 2009280115A JP 2009280115 A JP2009280115 A JP 2009280115A JP 5423370 B2 JP5423370 B2 JP 5423370B2
- Authority
- JP
- Japan
- Prior art keywords
- sound source
- sound
- differential
- microphone
- light emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- H04R1/20—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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/8006—Multi-channel systems specially adapted for direction-finding, i.e. having a single aerial system capable of giving simultaneous indications of the directions of different signals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/801—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/802—Systems for determining direction or deviation from predetermined direction
- G01S3/808—Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/005—Electrostatic transducers using semiconductor materials
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
- H04R2201/401—2D or 3D arrays of transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/008—Visual indication of individual signal levels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
Description
P=k/R (1)
10 差動マイクロホン
20 支持部材
21 支持部材の開口
23 持ち手部
30 発光部(表示部の一部)
41 演算器
43 発光部駆動部(表示部の一部)
AX 指向性の主軸
Claims (12)
- 外部音を内部に導く第1の音孔と第2の音孔とを有する両指向性の複数の差動マイクロホンと、
前記複数の差動マイクロホンの各音孔の向きが略同方向となるように平面状にアレイ配列された前記複数の差動マイクロホンを支持する支持部材と、
を備え、
第1の音孔と第2の音孔との並び方向が前記複数の差動マイクロホンの配列方向に対して略垂直であることを特徴とする音源探査装置。 - 前記支持部材には、複数の開口が形成されていることを特徴とする請求項1に記載の音源探査装置。
- 前記複数の差動マイクロホンの各々から出力される信号の演算処理を行う演算部と、
前記演算部における演算結果に基づいて、少なくとも、前記複数の差動マイクロホンの各々から出力された信号の出力レベルを視認できるように表示する表示部と、
を更に備えることを特徴とする請求項1又は2に記載の音源探査装置。 - 前記表示部が、隣り合う前記差動マイクロホン同士に挟まれた少なくとも1つの位置について、前記演算部における演算結果に基づいて推定の信号の出力レベルを視認できるように表示することを特徴とする請求項3に記載の音源探査装置。
- 前記表示部は複数の発光手段からなり、
前記複数の発光手段は、前記複数の差動マイクロホンの各々の近傍に前記発光手段が配設されるように、前記支持部材に取り付けられていることを特徴とする請求項3に記載の音源探査装置。 - 前記表示部は複数の発光手段からなり、
前記複数の発光手段は、前記複数の差動マイクロホンの各々の近傍、及び、前記差動マイクロホン同士に挟まれた少なくとも1つの位置近傍に前記発光手段が配設されるように、前記支持部材に取り付けられていることを特徴とする請求項4に記載の音源探査装置。 - 前記発光手段は、前記信号の出力レベルに応じて発光量が変化することを特徴とする請求項5又は6に記載の音源探査装置。
- 前記発光手段は、前記信号の出力レベルに応じて発光色が変化することを特徴とする請求項5又は6に記載の音源探査装置。
- 前記演算部が、前記支持部材に取り付けられていることを特徴とする請求項2から8のいずれかに記載の音源探査装置。
- 前記支持部材に持ち手部が設けられており、前記演算部が前記持ち手部に組み込まれていることを特徴とする請求項2から8のいずれかに記載の音源探査装置。
- 前記支持部材に持ち手部が設けられていることを特徴とする請求項1から9のいずれかに記載の音源探査装置。
- 前記複数の差動マイクロホンは、隣り合う前記差動マイクロホン同士の距離が等間隔となるように配設されていることを特徴とする請求項1から11のいずれかに記載の音源探査装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009280115A JP5423370B2 (ja) | 2009-12-10 | 2009-12-10 | 音源探査装置 |
US12/963,033 US20110164760A1 (en) | 2009-12-10 | 2010-12-08 | Sound source tracking device |
EP10194136.7A EP2352309B1 (en) | 2009-12-10 | 2010-12-08 | Sound Source Tracking Device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009280115A JP5423370B2 (ja) | 2009-12-10 | 2009-12-10 | 音源探査装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011124749A JP2011124749A (ja) | 2011-06-23 |
JP5423370B2 true JP5423370B2 (ja) | 2014-02-19 |
Family
ID=43768741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009280115A Expired - Fee Related JP5423370B2 (ja) | 2009-12-10 | 2009-12-10 | 音源探査装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20110164760A1 (ja) |
EP (1) | EP2352309B1 (ja) |
JP (1) | JP5423370B2 (ja) |
Families Citing this family (13)
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US8176789B1 (en) * | 2011-09-07 | 2012-05-15 | Robert Hickling | Three-microphone sound-intensity probe |
US9460732B2 (en) * | 2013-02-13 | 2016-10-04 | Analog Devices, Inc. | Signal source separation |
US9420368B2 (en) | 2013-09-24 | 2016-08-16 | Analog Devices, Inc. | Time-frequency directional processing of audio signals |
US9516412B2 (en) * | 2014-03-28 | 2016-12-06 | Panasonic Intellectual Property Management Co., Ltd. | Directivity control apparatus, directivity control method, storage medium and directivity control system |
EP3143776B1 (en) * | 2014-05-12 | 2018-03-07 | TDK Corporation | Microphone assembly and method of manufacturing a microphone assembly |
US10028051B2 (en) | 2015-08-31 | 2018-07-17 | Panasonic Intellectual Property Management Co., Ltd. | Sound source localization apparatus |
US20170365271A1 (en) | 2016-06-15 | 2017-12-21 | Adam Kupryjanow | Automatic speech recognition de-reverberation |
KR101949340B1 (ko) * | 2016-11-02 | 2019-02-18 | 단국대학교 산학협력단 | 음원의 발생 위치를 결정하는 방법 및 장치 |
CN112005087A (zh) * | 2018-03-28 | 2020-11-27 | 日本电产株式会社 | 声学分析系统 |
US10206036B1 (en) * | 2018-08-06 | 2019-02-12 | Alibaba Group Holding Limited | Method and apparatus for sound source location detection |
CN108966102B (zh) * | 2018-08-17 | 2024-03-29 | 钰太芯微电子科技(上海)有限公司 | 一种光电微机电系统麦克风及电子设备 |
KR102477099B1 (ko) * | 2018-08-21 | 2022-12-13 | 삼성전자주식회사 | 소리 방향 탐지 센서 및 이를 포함하는 전자 장치 |
JP6903621B2 (ja) * | 2018-11-07 | 2021-07-14 | スカパーJsat株式会社 | マイクロフォン |
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-
2009
- 2009-12-10 JP JP2009280115A patent/JP5423370B2/ja not_active Expired - Fee Related
-
2010
- 2010-12-08 EP EP10194136.7A patent/EP2352309B1/en not_active Not-in-force
- 2010-12-08 US US12/963,033 patent/US20110164760A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP2352309A1 (en) | 2011-08-03 |
US20110164760A1 (en) | 2011-07-07 |
JP2011124749A (ja) | 2011-06-23 |
EP2352309B1 (en) | 2016-03-23 |
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