DK1714524T3 - Mikrofongruppe med en frekvensuafhængig retningsvirkning - Google Patents

Mikrofongruppe med en frekvensuafhængig retningsvirkning

Info

Publication number
DK1714524T3
DK1714524T3 DK05700606.6T DK05700606T DK1714524T3 DK 1714524 T3 DK1714524 T3 DK 1714524T3 DK 05700606 T DK05700606 T DK 05700606T DK 1714524 T3 DK1714524 T3 DK 1714524T3
Authority
DK
Denmark
Prior art keywords
frequency independent
directional effect
microphone group
independent directional
microphone
Prior art date
Application number
DK05700606.6T
Other languages
English (en)
Inventor
Ole Moeller Soerensen
Original Assignee
Dpa Microphones As
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dpa Microphones As filed Critical Dpa Microphones As
Application granted granted Critical
Publication of DK1714524T3 publication Critical patent/DK1714524T3/da

Links

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
    • 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
    • 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
    • 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
    • H04R2201/403—Linear 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
    • 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
    • H04R2201/405—Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
    • H04R2430/23—Direction finding using a sum-delay beam-former
DK05700606.6T 2004-01-29 2005-01-27 Mikrofongruppe med en frekvensuafhængig retningsvirkning DK1714524T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200400124A DK176894B1 (da) 2004-01-29 2004-01-29 Mikrofonstruktur med retningsvirkning
PCT/DK2005/000056 WO2005074317A1 (en) 2004-01-29 2005-01-27 Microphone aperture

Publications (1)

Publication Number Publication Date
DK1714524T3 true DK1714524T3 (da) 2013-03-11

Family

ID=34814044

Family Applications (2)

Application Number Title Priority Date Filing Date
DKPA200400124A DK176894B1 (da) 2004-01-29 2004-01-29 Mikrofonstruktur med retningsvirkning
DK05700606.6T DK1714524T3 (da) 2004-01-29 2005-01-27 Mikrofongruppe med en frekvensuafhængig retningsvirkning

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DKPA200400124A DK176894B1 (da) 2004-01-29 2004-01-29 Mikrofonstruktur med retningsvirkning

Country Status (4)

Country Link
US (1) US7889873B2 (da)
EP (1) EP1714524B1 (da)
DK (2) DK176894B1 (da)
WO (1) WO2005074317A1 (da)

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WO2009009568A2 (en) * 2007-07-09 2009-01-15 Mh Acoustics, Llc Augmented elliptical microphone array
EA011601B1 (ru) * 2005-09-30 2009-04-28 Скуэрхэд Текнолоджи Ас Способ и система для направленного захвата аудиосигнала
JP4747949B2 (ja) * 2006-05-25 2011-08-17 ヤマハ株式会社 音声会議装置
CN101617245B (zh) * 2007-10-01 2012-10-10 松下电器产业株式会社 声源方向检测装置
US8615097B2 (en) 2008-02-21 2013-12-24 Bose Corportion Waveguide electroacoustical transducing
US8351630B2 (en) 2008-05-02 2013-01-08 Bose Corporation Passive directional acoustical radiating
NO332961B1 (no) 2008-12-23 2013-02-11 Cisco Systems Int Sarl Forhoyet toroidmikrofonapparat
US8553894B2 (en) 2010-08-12 2013-10-08 Bose Corporation Active and passive directional acoustic radiating
US11665482B2 (en) 2011-12-23 2023-05-30 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11589172B2 (en) 2014-01-06 2023-02-21 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US9685730B2 (en) 2014-09-12 2017-06-20 Steelcase Inc. Floor power distribution system
US10057701B2 (en) 2015-03-31 2018-08-21 Bose Corporation Method of manufacturing a loudspeaker
US9451355B1 (en) 2015-03-31 2016-09-20 Bose Corporation Directional acoustic device
US9554207B2 (en) 2015-04-30 2017-01-24 Shure Acquisition Holdings, Inc. Offset cartridge microphones
US9565493B2 (en) * 2015-04-30 2017-02-07 Shure Acquisition Holdings, Inc. Array microphone system and method of assembling the same
KR20180051189A (ko) * 2016-11-08 2018-05-16 삼성전자주식회사 자동 음성 트리거 방법 및 이를 적용한 음향 분석기
US10367948B2 (en) 2017-01-13 2019-07-30 Shure Acquisition Holdings, Inc. Post-mixing acoustic echo cancellation systems and methods
EP3804356A1 (en) 2018-06-01 2021-04-14 Shure Acquisition Holdings, Inc. Pattern-forming microphone array
US11297423B2 (en) 2018-06-15 2022-04-05 Shure Acquisition Holdings, Inc. Endfire linear array microphone
EP3834200A4 (en) * 2018-09-12 2021-08-25 Shenzhen Voxtech Co., Ltd. SIGNAL PROCESSING DEVICE INCLUDING MULTIPLE ELECTROACOUSTIC TRANSDUCERS
CN112889296A (zh) 2018-09-20 2021-06-01 舒尔获得控股公司 用于阵列麦克风的可调整的波瓣形状
JP2022526761A (ja) 2019-03-21 2022-05-26 シュアー アクイジッション ホールディングス インコーポレイテッド 阻止機能を伴うビーム形成マイクロフォンローブの自動集束、領域内自動集束、および自動配置
EP3942842A1 (en) 2019-03-21 2022-01-26 Shure Acquisition Holdings, Inc. Housings and associated design features for ceiling array microphones
US11558693B2 (en) 2019-03-21 2023-01-17 Shure Acquisition Holdings, Inc. Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition and voice activity detection functionality
US11445294B2 (en) 2019-05-23 2022-09-13 Shure Acquisition Holdings, Inc. Steerable speaker array, system, and method for the same
EP3977449A1 (en) 2019-05-31 2022-04-06 Shure Acquisition Holdings, Inc. Low latency automixer integrated with voice and noise activity detection
WO2021041275A1 (en) 2019-08-23 2021-03-04 Shore Acquisition Holdings, Inc. Two-dimensional microphone array with improved directivity
EP3852387A1 (en) * 2020-01-16 2021-07-21 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk Onderzoek TNO Sound detection device
US11552611B2 (en) 2020-02-07 2023-01-10 Shure Acquisition Holdings, Inc. System and method for automatic adjustment of reference gain
US11706562B2 (en) 2020-05-29 2023-07-18 Shure Acquisition Holdings, Inc. Transducer steering and configuration systems and methods using a local positioning system
JP2024505068A (ja) 2021-01-28 2024-02-02 シュアー アクイジッション ホールディングス インコーポレイテッド ハイブリッドオーディオビーム形成システム

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US4696043A (en) 1984-08-24 1987-09-22 Victor Company Of Japan, Ltd. Microphone apparatus having a variable directivity pattern
JPH0728470B2 (ja) * 1989-02-03 1995-03-29 松下電器産業株式会社 アレイマイクロホン
US5657393A (en) * 1993-07-30 1997-08-12 Crow; Robert P. Beamed linear array microphone system
US5473701A (en) * 1993-11-05 1995-12-05 At&T Corp. Adaptive microphone array
JP3541339B2 (ja) 1997-06-26 2004-07-07 富士通株式会社 マイクロホンアレイ装置
US6526147B1 (en) 1998-11-12 2003-02-25 Gn Netcom A/S Microphone array with high directivity
US6898582B2 (en) * 1998-12-30 2005-05-24 Algodyne, Ltd. Method and apparatus for extracting low SNR transient signals from noise
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WO2001071687A2 (en) 2000-03-17 2001-09-27 The Johns Hopkins University Phased array surveillance system
US7092882B2 (en) * 2000-12-06 2006-08-15 Ncr Corporation Noise suppression in beam-steered microphone array
FR2831763B1 (fr) 2001-10-26 2004-03-19 Get Enst Dispositif de saisie et restitution du son utilisant plusieurs capteurs

Also Published As

Publication number Publication date
DK200400124A (da) 2005-07-30
WO2005074317A1 (en) 2005-08-11
EP1714524A1 (en) 2006-10-25
US7889873B2 (en) 2011-02-15
DK176894B1 (da) 2010-03-08
EP1714524B1 (en) 2012-11-28
US20090226004A1 (en) 2009-09-10

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