DE69331181T2 - Tonverstärkervorrichtung mit automatischer Unterdrückung akustischer Rückkopplung - Google Patents
Tonverstärkervorrichtung mit automatischer Unterdrückung akustischer RückkopplungInfo
- 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
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
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
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) |
Families Citing this family (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050259833A1 (en) * | 1993-02-23 | 2005-11-24 | Scarpino Frank A | Frequency responses, apparatus and methods for the harmonic enhancement of audio signals |
JP3235925B2 (ja) * | 1993-11-19 | 2001-12-04 | 松下電器産業株式会社 | ハウリング抑制装置 |
JP2773678B2 (ja) * | 1994-09-09 | 1998-07-09 | ヤマハ株式会社 | ハウリング防止装置 |
US5717772A (en) * | 1995-08-07 | 1998-02-10 | Motorola, Inc. | Method and apparatus for suppressing acoustic feedback in an audio system |
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 |
US7203324B2 (en) * | 2002-03-13 | 2007-04-10 | Harman International Industries, Incorporated | Audio feedback processing system |
US8271279B2 (en) | 2003-02-21 | 2012-09-18 | Qnx Software Systems Limited | Signature noise removal |
US8073689B2 (en) * | 2003-02-21 | 2011-12-06 | Qnx Software Systems Co. | Repetitive transient noise removal |
US7885420B2 (en) * | 2003-02-21 | 2011-02-08 | Qnx Software Systems Co. | Wind noise suppression system |
US7725315B2 (en) * | 2003-02-21 | 2010-05-25 | Qnx Software Systems (Wavemakers), Inc. | Minimization of transient noises in a voice signal |
US7895036B2 (en) * | 2003-02-21 | 2011-02-22 | Qnx Software Systems Co. | System for suppressing wind noise |
US7949522B2 (en) | 2003-02-21 | 2011-05-24 | Qnx Software Systems Co. | System for suppressing rain noise |
US8326621B2 (en) | 2003-02-21 | 2012-12-04 | Qnx Software Systems Limited | 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 |
US8265295B2 (en) * | 2005-03-11 | 2012-09-11 | Rane Corporation | Method and apparatus for identifying feedback in a circuit |
US8243953B2 (en) * | 2005-03-11 | 2012-08-14 | Rane Corporation | Method and apparatus for identifying a feedback frequency in a signal |
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 |
EP2410763A4 (de) * | 2009-03-19 | 2013-09-04 | Yugengaisya Cepstrum | Rückkopplungsunterdrückung |
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 |
CN103039093A (zh) * | 2010-06-08 | 2013-04-10 | Ip音乐集团有限公司 | 用于增大音频系统中的反馈检测速率的系统和方法 |
DK2677770T3 (en) * | 2012-06-21 | 2015-10-26 | Oticon As | A hearing aid comprising a feedback alarm |
CN105308985B (zh) * | 2013-06-19 | 2019-09-10 | 创新科技有限公司 | 一种声反馈消除模块、用于抑制不期望的啸叫声音的方法及音频系统 |
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 |
WO2016101162A1 (zh) * | 2014-12-24 | 2016-06-30 | 海能达通信股份有限公司 | 一种声反馈检测方法和装置 |
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 |
US11128946B2 (en) * | 2017-01-12 | 2021-09-21 | Sonova Ag | Hearing device with acoustic shock control and method for acoustic shock control in a hearing device |
WO2019039128A1 (ja) * | 2017-08-22 | 2019-02-28 | ソニー株式会社 | 制御装置、制御方法、プログラム |
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 |
Family Cites Families (8)
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 |
-
1993
- 1993-08-31 US US08/113,658 patent/US5442712A/en not_active Expired - Lifetime
- 1993-09-02 EP EP93306966A patent/EP0599450B1/de not_active Expired - Lifetime
- 1993-09-02 DE DE69331181T patent/DE69331181T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0599450A2 (de) | 1994-06-01 |
DE69331181D1 (de) | 2002-01-03 |
EP0599450B1 (de) | 2001-11-21 |
EP0599450A3 (de) | 1994-11-17 |
US5442712A (en) | 1995-08-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |