DE60234487D1 - Adaptive Differentialmikrofonanordnung zweiter Ordnung - Google Patents

Adaptive Differentialmikrofonanordnung zweiter Ordnung

Info

Publication number
DE60234487D1
DE60234487D1 DE60234487T DE60234487T DE60234487D1 DE 60234487 D1 DE60234487 D1 DE 60234487D1 DE 60234487 T DE60234487 T DE 60234487T DE 60234487 T DE60234487 T DE 60234487T DE 60234487 D1 DE60234487 D1 DE 60234487D1
Authority
DE
Germany
Prior art keywords
order
microphone arrangement
adaptive differential
differential microphone
adaptive
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 - Lifetime
Application number
DE60234487T
Other languages
English (en)
Inventor
Gary W Elko
Heinz Teutsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agere Systems LLC
Original Assignee
Agere Systems LLC
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 Agere Systems LLC filed Critical Agere Systems LLC
Application granted granted Critical
Publication of DE60234487D1 publication Critical patent/DE60234487D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
    • H04R29/005—Microphone arrays
    • 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
    • H04R2410/00—Microphones
    • H04R2410/01—Noise reduction using microphones having different directional characteristics
    • 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
    • H04R2430/21—Direction finding using differential microphone array [DMA]
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
DE60234487T 2001-07-18 2002-07-12 Adaptive Differentialmikrofonanordnung zweiter Ordnung Expired - Lifetime DE60234487D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30627101P 2001-07-18 2001-07-18
US09/999,298 US6584203B2 (en) 2001-07-18 2001-10-30 Second-order adaptive differential microphone array

Publications (1)

Publication Number Publication Date
DE60234487D1 true DE60234487D1 (de) 2010-01-07

Family

ID=26975065

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60234487T Expired - Lifetime DE60234487D1 (de) 2001-07-18 2002-07-12 Adaptive Differentialmikrofonanordnung zweiter Ordnung

Country Status (3)

Country Link
US (1) US6584203B2 (de)
EP (1) EP1278395B1 (de)
DE (1) DE60234487D1 (de)

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JP3908598B2 (ja) * 2002-05-29 2007-04-25 富士通株式会社 波動信号処理システム及び方法
US7218741B2 (en) * 2002-06-05 2007-05-15 Siemens Medical Solutions Usa, Inc System and method for adaptive multi-sensor arrays
DE10313331B4 (de) * 2003-03-25 2005-06-16 Siemens Audiologische Technik Gmbh Verfahren zur Bestimmung einer Einfallsrichtung eines Signals einer akustischen Signalquelle und Vorrichtung zur Durchführung des Verfahrens
EP1695590B1 (de) * 2003-12-01 2014-02-26 Wolfson Dynamic Hearing Pty Ltd. Verfahren und vorrichtung zum erzeugen adaptiver richtungssignale
GB0405455D0 (en) * 2004-03-11 2004-04-21 Mitel Networks Corp High precision beamsteerer based on fixed beamforming approach beampatterns
US7826624B2 (en) * 2004-10-15 2010-11-02 Lifesize Communications, Inc. Speakerphone self calibration and beam forming
US7970151B2 (en) * 2004-10-15 2011-06-28 Lifesize Communications, Inc. Hybrid beamforming
US7970150B2 (en) * 2005-04-29 2011-06-28 Lifesize Communications, Inc. Tracking talkers using virtual broadside scan and directed beams
US7991167B2 (en) * 2005-04-29 2011-08-02 Lifesize Communications, Inc. Forming beams with nulls directed at noise sources
US20070127762A1 (en) * 2005-12-07 2007-06-07 Fortemedia, Inc. Electronic device with microphone array
US20120106755A1 (en) * 2005-12-07 2012-05-03 Fortemedia, Inc. Handheld electronic device with microphone array
US8345890B2 (en) 2006-01-05 2013-01-01 Audience, Inc. System and method for utilizing inter-microphone level differences for speech enhancement
US8204252B1 (en) 2006-10-10 2012-06-19 Audience, Inc. System and method for providing close microphone adaptive array processing
US8744844B2 (en) 2007-07-06 2014-06-03 Audience, Inc. System and method for adaptive intelligent noise suppression
US9185487B2 (en) 2006-01-30 2015-11-10 Audience, Inc. System and method for providing noise suppression utilizing null processing noise subtraction
US8194880B2 (en) * 2006-01-30 2012-06-05 Audience, Inc. System and method for utilizing omni-directional microphones for speech enhancement
US7864969B1 (en) 2006-02-28 2011-01-04 National Semiconductor Corporation Adaptive amplifier circuitry for microphone array
US7676052B1 (en) 2006-02-28 2010-03-09 National Semiconductor Corporation Differential microphone assembly
US20070244698A1 (en) * 2006-04-18 2007-10-18 Dugger Jeffery D Response-select null steering circuit
US8180067B2 (en) * 2006-04-28 2012-05-15 Harman International Industries, Incorporated System for selectively extracting components of an audio input signal
US8150065B2 (en) 2006-05-25 2012-04-03 Audience, Inc. System and method for processing an audio signal
US8949120B1 (en) 2006-05-25 2015-02-03 Audience, Inc. Adaptive noise cancelation
US8849231B1 (en) 2007-08-08 2014-09-30 Audience, Inc. System and method for adaptive power control
US8204253B1 (en) 2008-06-30 2012-06-19 Audience, Inc. Self calibration of audio device
US8934641B2 (en) 2006-05-25 2015-01-13 Audience, Inc. Systems and methods for reconstructing decomposed audio signals
US8036767B2 (en) 2006-09-20 2011-10-11 Harman International Industries, Incorporated System for extracting and changing the reverberant content of an audio input signal
US7848529B2 (en) * 2007-01-11 2010-12-07 Fortemedia, Inc. Broadside small array microphone beamforming unit
US8259926B1 (en) 2007-02-23 2012-09-04 Audience, Inc. System and method for 2-channel and 3-channel acoustic echo cancellation
US9473850B2 (en) * 2007-07-19 2016-10-18 Alon Konchitsky Voice signals improvements in compressed wireless communications systems
US8189766B1 (en) 2007-07-26 2012-05-29 Audience, Inc. System and method for blind subband acoustic echo cancellation postfiltering
US8143620B1 (en) 2007-12-21 2012-03-27 Audience, Inc. System and method for adaptive classification of audio sources
US8180064B1 (en) 2007-12-21 2012-05-15 Audience, Inc. System and method for providing voice equalization
US8194882B2 (en) 2008-02-29 2012-06-05 Audience, Inc. System and method for providing single microphone noise suppression fallback
US8355511B2 (en) 2008-03-18 2013-01-15 Audience, Inc. System and method for envelope-based acoustic echo cancellation
US8521530B1 (en) 2008-06-30 2013-08-27 Audience, Inc. System and method for enhancing a monaural audio signal
US8774423B1 (en) 2008-06-30 2014-07-08 Audience, Inc. System and method for controlling adaptivity of signal modification using a phantom coefficient
WO2010044002A2 (en) * 2008-10-16 2010-04-22 Nxp B.V. Microphone system and method of operating the same
CN102687536B (zh) * 2009-10-05 2017-03-08 哈曼国际工业有限公司 用于音频信号的空间提取的***
US20110096937A1 (en) * 2009-10-28 2011-04-28 Fortemedia, Inc. Microphone apparatus and sound processing method
US9008329B1 (en) 2010-01-26 2015-04-14 Audience, Inc. Noise reduction using multi-feature cluster tracker
DE102010003837B4 (de) 2010-04-09 2024-07-18 Sennheiser Electronic Gmbh & Co. Kg Mikrofoneinheit
US8798290B1 (en) 2010-04-21 2014-08-05 Audience, Inc. Systems and methods for adaptive signal equalization
US9094496B2 (en) * 2010-06-18 2015-07-28 Avaya Inc. System and method for stereophonic acoustic echo cancellation
WO2013030345A2 (en) * 2011-09-02 2013-03-07 Gn Netcom A/S A method and a system for noise suppressing an audio signal
US9640194B1 (en) 2012-10-04 2017-05-02 Knowles Electronics, Llc Noise suppression for speech processing based on machine-learning mask estimation
EP2848007B1 (de) 2012-10-15 2021-03-17 MH Acoustics, LLC Rauschunterdrückendes direktionales mikrophon-array
GB2527428A (en) * 2012-12-17 2015-12-23 Panamax35 LLC Destructive interference microphone
US9330677B2 (en) * 2013-01-07 2016-05-03 Dietmar Ruwisch Method and apparatus for generating a noise reduced audio signal using a microphone array
KR101812862B1 (ko) * 2013-04-08 2017-12-27 노키아 테크놀로지스 오와이 오디오 장치
US9860634B2 (en) * 2013-06-18 2018-01-02 Creative Technology Ltd Headset with end-firing microphone array and automatic calibration of end-firing array
US9536540B2 (en) 2013-07-19 2017-01-03 Knowles Electronics, Llc Speech signal separation and synthesis based on auditory scene analysis and speech modeling
US9306606B2 (en) * 2014-06-10 2016-04-05 The Boeing Company Nonlinear filtering using polyphase filter banks
CN106797512B (zh) 2014-08-28 2019-10-25 美商楼氏电子有限公司 多源噪声抑制的方法、***和非瞬时计算机可读存储介质
EP3079375A1 (de) 2015-04-10 2016-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Differentielle tonwiedergabe
GB2575491A (en) * 2018-07-12 2020-01-15 Centricam Tech Limited A microphone system
CN112292870A (zh) 2018-08-14 2021-01-29 阿里巴巴集团控股有限公司 音频信号处理装置及方法
WO2020059977A1 (ko) * 2018-09-21 2020-03-26 엘지전자 주식회사 연속적으로 스티어링 가능한 2차 디퍼런셜 마이크로폰 어레이 및 그것을 구성하는 방법
JP2020144204A (ja) * 2019-03-06 2020-09-10 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 信号処理装置及び信号処理方法
GB2606191A (en) * 2021-04-29 2022-11-02 Secr Defence A method and system for directional processing of audio information
US12028684B2 (en) 2021-07-30 2024-07-02 Starkey Laboratories, Inc. Spatially differentiated noise reduction for hearing devices

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CA2069356C (en) 1991-07-17 1997-05-06 Gary Wayne Elko Adjustable filter for differential microphones
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JPH11502324A (ja) * 1995-12-15 1999-02-23 フィリップス エレクトロニクス エヌ ベー 適応雑音除去装置、雑音減少システム及び送受信機
US6041127A (en) * 1997-04-03 2000-03-21 Lucent Technologies Inc. Steerable and variable first-order differential microphone array

Also Published As

Publication number Publication date
EP1278395A3 (de) 2007-03-28
EP1278395A2 (de) 2003-01-22
US6584203B2 (en) 2003-06-24
EP1278395B1 (de) 2009-11-25
US20030031328A1 (en) 2003-02-13

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