DE69331181T2 - Tonverstärkervorrichtung mit automatischer Unterdrückung akustischer Rückkopplung - Google Patents

Tonverstärkervorrichtung mit automatischer Unterdrückung akustischer Rückkopplung

Info

Publication number
DE69331181T2
DE69331181T2 DE69331181T DE69331181T DE69331181T2 DE 69331181 T2 DE69331181 T2 DE 69331181T2 DE 69331181 T DE69331181 T DE 69331181T DE 69331181 T DE69331181 T DE 69331181T DE 69331181 T2 DE69331181 T2 DE 69331181T2
Authority
DE
Germany
Prior art keywords
amplifier device
acoustic feedback
sound amplifier
automatic suppression
suppression
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
DE69331181T
Other languages
English (en)
Other versions
DE69331181D1 (de
Inventor
Akihisa Kawamura
Masaharu Matsumoto
Mitsuhiko Serikawa
Hiroko Numazu
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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
Priority claimed from JP31481992A external-priority patent/JP3134557B2/ja
Priority claimed from JP4770093A external-priority patent/JP3097376B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69331181D1 publication Critical patent/DE69331181D1/de
Application granted granted Critical
Publication of DE69331181T2 publication Critical patent/DE69331181T2/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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
DE69331181T 1992-11-25 1993-09-02 Tonverstärkervorrichtung mit automatischer Unterdrückung akustischer Rückkopplung Expired - Lifetime DE69331181T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP31481992A JP3134557B2 (ja) 1992-11-25 1992-11-25 ハウリング抑制装置
JP4770093A JP3097376B2 (ja) 1993-03-09 1993-03-09 ハウリング抑制装置

Publications (2)

Publication Number Publication Date
DE69331181D1 DE69331181D1 (de) 2002-01-03
DE69331181T2 true DE69331181T2 (de) 2002-04-18

Family

ID=26387858

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69331181T Expired - Lifetime DE69331181T2 (de) 1992-11-25 1993-09-02 Tonverstärkervorrichtung mit automatischer Unterdrückung akustischer Rückkopplung

Country Status (3)

Country Link
US (1) US5442712A (de)
EP (1) EP0599450B1 (de)
DE (1) DE69331181T2 (de)

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JP2773678B2 (ja) * 1994-09-09 1998-07-09 ヤマハ株式会社 ハウリング防止装置
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US5920633A (en) * 1996-02-12 1999-07-06 Yang; Yi-Fu Thin-wall multi-concentric cylinder speaker enclosure with audio amplifier tunable to listening room
US5999631A (en) * 1996-07-26 1999-12-07 Shure Brothers Incorporated Acoustic feedback elimination using adaptive notch filter algorithm
JP3152160B2 (ja) * 1996-11-13 2001-04-03 ヤマハ株式会社 ハウリング検出防止回路及びそれを用いた拡声装置
JP3240947B2 (ja) * 1997-01-28 2001-12-25 ヤマハ株式会社 ハウリング検出器及びハウリングキャンセル装置
US6535609B1 (en) * 1997-06-03 2003-03-18 Lear Automotive Dearborn, Inc. Cabin communication system
JPH11127496A (ja) * 1997-10-20 1999-05-11 Sony Corp ハウリング除去装置
GB2330744B (en) * 1997-10-24 2002-05-29 Mitel Corp Howling controller
US7613529B1 (en) * 2000-09-09 2009-11-03 Harman International Industries, Limited System for eliminating acoustic feedback
US6665411B2 (en) * 2001-02-21 2003-12-16 Digisonix Llc DVE system with instability detection
JP3984842B2 (ja) * 2002-03-12 2007-10-03 松下電器産業株式会社 ハウリング制御装置
WO2003079721A1 (en) * 2002-03-13 2003-09-25 Harman International Industries, Incorporated Audio feedback processing system
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US7949522B2 (en) 2003-02-21 2011-05-24 Qnx Software Systems Co. System for suppressing rain noise
US7885420B2 (en) * 2003-02-21 2011-02-08 Qnx Software Systems Co. Wind noise suppression system
US8326621B2 (en) 2003-02-21 2012-12-04 Qnx Software Systems Limited Repetitive transient noise removal
US8271279B2 (en) 2003-02-21 2012-09-18 Qnx Software Systems Limited Signature noise removal
US7895036B2 (en) * 2003-02-21 2011-02-22 Qnx Software Systems Co. System for suppressing wind noise
US8073689B2 (en) * 2003-02-21 2011-12-06 Qnx Software Systems Co. Repetitive transient noise removal
US7912228B2 (en) * 2003-07-18 2011-03-22 Volkswagen Ag Device and method for operating voice-supported systems in motor vehicles
JP4297055B2 (ja) * 2005-01-12 2009-07-15 ヤマハ株式会社 カラオケ装置
EP1684543A1 (de) * 2005-01-19 2006-07-26 Success Chip Ltd. Verfahren zum Unterdrücken von elektroakustischer Rückkopplung
US8243953B2 (en) * 2005-03-11 2012-08-14 Rane Corporation Method and apparatus for identifying a feedback frequency in a signal
US8265295B2 (en) * 2005-03-11 2012-09-11 Rane Corporation Method and apparatus for identifying feedback in a circuit
US7742608B2 (en) * 2005-03-31 2010-06-22 Polycom, Inc. Feedback elimination method and apparatus
WO2006123495A1 (ja) * 2005-05-18 2006-11-23 Matsushita Electric Industrial Co., Ltd. ハウリング制御装置および音響装置
US20070008433A1 (en) * 2005-07-01 2007-01-11 Rolf Goehler Dual-mode acoustic tuning system and method
EP1903833A1 (de) * 2006-09-21 2008-03-26 Phonic Ear Incorporated Rückkopplungsunterdrückung in einem Tonsystem
EP1912478A1 (de) * 2006-10-12 2008-04-16 Phonic Ear Incorporated Schallverstärkungssystem für ein Klassenzimmer
JP4916394B2 (ja) * 2007-07-03 2012-04-11 富士通株式会社 エコー抑圧装置、エコー抑圧方法及びコンピュータプログラム
JP5239359B2 (ja) 2008-01-31 2013-07-17 ヤマハ株式会社 ハウリング抑制装置
DK2086250T3 (da) * 2008-02-01 2020-07-06 Oticon As Lyttesystem med et forbedret feedback-undertrykkelsessystem, en fremgangsmåde og anvendelse
WO2010106820A1 (ja) * 2009-03-19 2010-09-23 有限会社ケプストラム ハウリングキャンセラ
CN102422349A (zh) * 2009-05-14 2012-04-18 夏普株式会社 增益控制装置和增益控制方法、声音输出装置
US20100310090A1 (en) * 2009-06-09 2010-12-09 Phonic Ear Inc. Sound amplification system comprising a combined ir-sensor/speaker
JP4567804B1 (ja) * 2009-11-30 2010-10-20 パナソニック株式会社 ハウリング抑制装置、マイク装置、アンプ装置、拡声システムおよびハウリング抑制方法
DK200970303A (en) * 2009-12-29 2011-06-30 Gn Resound As A method for the detection of whistling in an audio system and a hearing aid executing the method
TWM390014U (en) * 2010-01-14 2010-10-01 Phonic Corp Speaker box with feedback suppression capability and mixer
WO2011154808A2 (en) * 2010-06-08 2011-12-15 Music Group Ip, Ltd. System and method for increasing a feedback detection rate in an audio system
DK2677770T3 (en) * 2012-06-21 2015-10-26 Oticon As A hearing aid comprising a feedback alarm
US10178486B2 (en) * 2013-06-19 2019-01-08 Creative Technology Ltd Acoustic feedback canceller
US9351072B2 (en) 2013-11-05 2016-05-24 Bose Corporation Multi-band harmonic discrimination for feedback suppression
US9854358B2 (en) * 2014-07-25 2017-12-26 2236008 Ontario Inc. System and method for mitigating audio feedback
CN104464752B (zh) * 2014-12-24 2018-03-16 海能达通信股份有限公司 一种声反馈检测方法和装置
EP3240303B1 (de) * 2014-12-24 2020-04-08 Hytera Communications Corp., Ltd. Detektionsverfahren und -vorrichtung für schallrückkopplung
CN110169081B (zh) * 2017-01-12 2020-11-17 索诺亚公司 听力装置以及用于听力装置中的声冲击控制的方法
EP3675519A4 (de) * 2017-08-22 2020-10-14 Sony Corporation Steuerungsvorrichtung, steuerungsverfahren und programm
CN111477246B (zh) * 2019-01-24 2023-11-17 腾讯科技（深圳）有限公司 语音处理方法、装置及智能终端
GB2596169B (en) * 2020-02-11 2022-04-27 Tymphany Acoustic Tech Ltd A method and an audio processing unit for detecting a tone
CN112802492B (zh) * 2021-04-14 2021-07-27 展讯通信（上海）有限公司 一种抑制啸叫的方法、装置、芯片及模组设备
CN113316074B (zh) * 2021-05-11 2022-07-05 紫光展锐(重庆)科技有限公司 一种啸叫检测方法、装置及电子设备
US11589154B1 (en) * 2021-08-25 2023-02-21 Bose Corporation Wearable audio device zero-crossing based parasitic oscillation detection

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59161995A (ja) * 1983-03-07 1984-09-12 Matsushita Electric Ind Co Ltd ハウリング抑圧装置
JPS635697A (ja) * 1986-06-26 1988-01-11 Matsushita Electric Ind Co Ltd ハウリング抑圧方法
JP2514632B2 (ja) * 1986-07-09 1996-07-10 三共株式会社 抗生物質クロロポリスポリンａ
JPS6318796A (ja) * 1986-07-10 1988-01-26 Matsushita Electric Ind Co Ltd ハウリング抑圧方法
US4888808A (en) * 1987-03-23 1989-12-19 Matsushita Electric Industrial Co., Ltd. Digital equalizer apparatus enabling separate phase and amplitude characteristic modification
EP0288159B1 (de) * 1987-03-23 1995-05-10 Matsushita Electric Industrial Co., Ltd. Digitales Entzerrergerät für getrennte Phasen- und Amplitudenmodifikation
US4843621A (en) * 1987-04-24 1989-06-27 Motorola, Inc. Speakerphone using digitally compressed audio to detect acoustic feedback
EP0486679B1 (de) * 1990-06-13 1996-04-03 Sabine Musical Manufacturing Company, Inc. Verfahren und einrichtung zur adaptiven filterung einer audioresonanzfrequenz

Also Published As

Publication number Publication date
US5442712A (en) 1995-08-15
DE69331181D1 (de) 2002-01-03
EP0599450B1 (de) 2001-11-21
EP0599450A2 (de) 1994-06-01
EP0599450A3 (de) 1994-11-17

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Legal Events

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8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP