ATE497327T1 - Vorrichtung und verfahren zur schallstrahlformung - Google Patents

Vorrichtung und verfahren zur schallstrahlformung

Info

Publication number
ATE497327T1
ATE497327T1 AT06765985T AT06765985T ATE497327T1 AT E497327 T1 ATE497327 T1 AT E497327T1 AT 06765985 T AT06765985 T AT 06765985T AT 06765985 T AT06765985 T AT 06765985T AT E497327 T1 ATE497327 T1 AT E497327T1
Authority
AT
Austria
Prior art keywords
signal
processor
criterion
update
difference signal
Prior art date
Application number
AT06765985T
Other languages
English (en)
Inventor
Ivo Merks
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE497327T1 publication Critical patent/ATE497327T1/de

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
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
AT06765985T 2005-07-06 2006-07-03 Vorrichtung und verfahren zur schallstrahlformung ATE497327T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05106124 2005-07-06
PCT/IB2006/052225 WO2007004188A2 (en) 2005-07-06 2006-07-03 Apparatus and method for acoustic beamforming

Publications (1)

Publication Number Publication Date
ATE497327T1 true ATE497327T1 (de) 2011-02-15

Family

ID=37604869

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06765985T ATE497327T1 (de) 2005-07-06 2006-07-03 Vorrichtung und verfahren zur schallstrahlformung

Country Status (8)

Country Link
US (1) US8103023B2 (de)
EP (1) EP1905268B1 (de)
JP (1) JP4955676B2 (de)
CN (1) CN101218848B (de)
AT (1) ATE497327T1 (de)
DE (1) DE602006019872D1 (de)
ES (1) ES2359511T3 (de)
WO (1) WO2007004188A2 (de)

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EP2206361A1 (de) * 2007-10-16 2010-07-14 Phonak AG Verfahren und system für drahtlose hörhilfe
TW200826062A (en) * 2008-01-15 2008-06-16 Asia Vital Components Co Ltd System of inhibiting broadband noise of communication equipment room
US8812309B2 (en) * 2008-03-18 2014-08-19 Qualcomm Incorporated Methods and apparatus for suppressing ambient noise using multiple audio signals
US8401178B2 (en) * 2008-09-30 2013-03-19 Apple Inc. Multiple microphone switching and configuration
US8842851B2 (en) * 2008-12-12 2014-09-23 Broadcom Corporation Audio source localization system and method
US9838784B2 (en) 2009-12-02 2017-12-05 Knowles Electronics, Llc Directional audio capture
US8798290B1 (en) 2010-04-21 2014-08-05 Audience, Inc. Systems and methods for adaptive signal equalization
US9558755B1 (en) 2010-05-20 2017-01-31 Knowles Electronics, Llc Noise suppression assisted automatic speech recognition
EP2426949A3 (de) * 2010-08-31 2013-09-11 Samsung Electronics Co., Ltd. Verfahren und Vorrichtung zur Wiedergabe von Front-Raumklang
US8606249B1 (en) * 2011-03-07 2013-12-10 Audience, Inc. Methods and systems for enhancing audio quality during teleconferencing
CN102347027A (zh) * 2011-07-07 2012-02-08 瑞声声学科技(深圳)有限公司 双麦克风语音增强装置及其语音增强方法
CN102347028A (zh) * 2011-07-14 2012-02-08 瑞声声学科技(深圳)有限公司 双麦克风语音增强装置及方法
US20130114823A1 (en) * 2011-11-04 2013-05-09 Nokia Corporation Headset With Proximity Determination
US9111542B1 (en) * 2012-03-26 2015-08-18 Amazon Technologies, Inc. Audio signal transmission techniques
US9640194B1 (en) 2012-10-04 2017-05-02 Knowles Electronics, Llc Noise suppression for speech processing based on machine-learning mask estimation
DE112015003945T5 (de) 2014-08-28 2017-05-11 Knowles Electronics, Llc Mehrquellen-Rauschunterdrückung
CN107112025A (zh) 2014-09-12 2017-08-29 美商楼氏电子有限公司 用于恢复语音分量的系统和方法
DE112016000545B4 (de) 2015-01-30 2019-08-22 Knowles Electronics, Llc Kontextabhängiges schalten von mikrofonen
US9747920B2 (en) * 2015-12-17 2017-08-29 Amazon Technologies, Inc. Adaptive beamforming to create reference channels
WO2018127483A1 (en) 2017-01-03 2018-07-12 Koninklijke Philips N.V. Audio capture using beamforming
WO2018127447A1 (en) * 2017-01-03 2018-07-12 Koninklijke Philips N.V. Method and apparatus for audio capture using beamforming
WO2018127450A1 (en) * 2017-01-03 2018-07-12 Koninklijke Philips N.V. Audio capture using beamforming
US10580411B2 (en) * 2017-09-25 2020-03-03 Cirrus Logic, Inc. Talker change detection
CN107785029B (zh) * 2017-10-23 2021-01-29 科大讯飞股份有限公司 目标语音检测方法及装置
CN108419168A (zh) * 2018-01-19 2018-08-17 广东小天才科技有限公司 拾音设备的指向性拾音方法、装置、拾音设备及存储介质
US11303994B2 (en) 2019-07-14 2022-04-12 Peiker Acustic Gmbh Reduction of sensitivity to non-acoustic stimuli in a microphone array
DE102021118403B4 (de) * 2021-07-16 2024-01-18 ELAC SONAR GmbH Verfahren und Vorrichtung zum adaptiven Beamforming

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US5627799A (en) * 1994-09-01 1997-05-06 Nec Corporation Beamformer using coefficient restrained adaptive filters for detecting interference signals
JP3531084B2 (ja) * 1996-03-01 2004-05-24 富士通株式会社 指向性マイクロフォン装置
JP3194872B2 (ja) * 1996-10-15 2001-08-06 松下電器産業株式会社 マイクロホン装置
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US7146012B1 (en) 1997-11-22 2006-12-05 Koninklijke Philips Electronics N.V. Audio processing arrangement with multiple sources
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JP2002099297A (ja) * 2000-09-22 2002-04-05 Tokai Rika Co Ltd マイクロフォン装置
WO2003058607A2 (en) 2002-01-09 2003-07-17 Koninklijke Philips Electronics N.V. Audio enhancement system having a spectral power ratio dependent processor
KR100480789B1 (ko) * 2003-01-17 2005-04-06 삼성전자주식회사 피드백 구조를 이용한 적응적 빔 형성방법 및 장치
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KR20060113714A (ko) * 2003-11-24 2006-11-02 코닌클리케 필립스 일렉트로닉스 엔.브이. 비상관된 잡음에 대해 내성을 갖는 적응형 빔포머
JP5313496B2 (ja) * 2004-04-28 2013-10-09 コーニンクレッカ フィリップス エヌ ヴェ 適応ビームフォーマ、サイドローブキャンセラ、ハンズフリー通話装置
KR100619066B1 (ko) * 2005-01-14 2006-08-31 삼성전자주식회사 오디오 신호의 저음역 강화 방법 및 장치

Also Published As

Publication number Publication date
CN101218848B (zh) 2011-11-16
ES2359511T3 (es) 2011-05-24
WO2007004188A3 (en) 2007-05-03
JP4955676B2 (ja) 2012-06-20
CN101218848A (zh) 2008-07-09
US8103023B2 (en) 2012-01-24
EP1905268B1 (de) 2011-01-26
EP1905268A2 (de) 2008-04-02
US20080192955A1 (en) 2008-08-14
WO2007004188A2 (en) 2007-01-11
DE602006019872D1 (de) 2011-03-10
JP2009500938A (ja) 2009-01-08

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