DE69434546D1 - Vorrichtung und verfahren zur verringerung der akustischen rückkopplung - Google Patents
Vorrichtung und verfahren zur verringerung der akustischen rückkopplungInfo
- Publication number
- DE69434546D1 DE69434546D1 DE69434546T DE69434546T DE69434546D1 DE 69434546 D1 DE69434546 D1 DE 69434546D1 DE 69434546 T DE69434546 T DE 69434546T DE 69434546 T DE69434546 T DE 69434546T DE 69434546 D1 DE69434546 D1 DE 69434546D1
- Authority
- DE
- Germany
- Prior art keywords
- reducing
- acoustic feedback
- acoustic
- feedback
- 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 - Fee Related
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
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
- H04R25/453—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback electronically
-
- 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
- H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R27/00—Public address systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US120187 | 1993-09-13 | ||
US08/120,187 US5412734A (en) | 1993-09-13 | 1993-09-13 | Apparatus and method for reducing acoustic feedback |
PCT/US1994/010182 WO1995008249A1 (en) | 1993-09-13 | 1994-09-09 | Apparatus and method for reducing acoustic feedback |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69434546D1 true DE69434546D1 (de) | 2005-12-22 |
DE69434546T2 DE69434546T2 (de) | 2006-08-10 |
Family
ID=22388762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69434546T Expired - Fee Related DE69434546T2 (de) | 1993-09-13 | 1994-09-09 | Vorrichtung und verfahren zur verringerung der akustischen rückkopplung |
Country Status (5)
Country | Link |
---|---|
US (2) | US5412734A (de) |
EP (1) | EP0719493B1 (de) |
AU (1) | AU7685094A (de) |
DE (1) | DE69434546T2 (de) |
WO (1) | WO1995008249A1 (de) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6009311A (en) * | 1996-02-21 | 1999-12-28 | Etymotic Research | Method and apparatus for reducing audio interference from cellular telephone transmissions |
US6466674B1 (en) * | 1996-07-17 | 2002-10-15 | American Technology Corporation | Method and apparatus for eliminating audio feedback |
DE19647399C1 (de) | 1996-11-15 | 1998-07-02 | Fraunhofer Ges Forschung | Gehörangepaßte Qualitätsbeurteilung von Audiotestsignalen |
US6236731B1 (en) * | 1997-04-16 | 2001-05-22 | Dspfactory Ltd. | Filterbank structure and method for filtering and separating an information signal into different bands, particularly for audio signal in hearing aids |
DE19720651C2 (de) * | 1997-05-16 | 2001-07-12 | Siemens Audiologische Technik | Hörgerät mit verschiedenen Baugruppen zur Aufnahme, Weiterverarbeitung sowie Anpassung eines Schallsignals an das Hörvermögen eines Schwerhörigen |
US6137888A (en) * | 1997-06-02 | 2000-10-24 | Nortel Networks Corporation | EM interference canceller in an audio amplifier |
JPH11127496A (ja) * | 1997-10-20 | 1999-05-11 | Sony Corp | ハウリング除去装置 |
JPH11164384A (ja) * | 1997-11-25 | 1999-06-18 | Nec Corp | 超指向性スピーカ及びスピーカの駆動方法 |
US6347148B1 (en) | 1998-04-16 | 2002-02-12 | Dspfactory Ltd. | Method and apparatus for feedback reduction in acoustic systems, particularly in hearing aids |
US6111957A (en) * | 1998-07-02 | 2000-08-29 | Acoustic Technologies, Inc. | Apparatus and method for adjusting audio equipment in acoustic environments |
US6850623B1 (en) | 1999-10-29 | 2005-02-01 | American Technology Corporation | Parametric loudspeaker with improved phase characteristics |
US6252967B1 (en) | 1999-01-21 | 2001-06-26 | Acoustic Technologies, Inc. | Reducing acoustic feedback with digital modulation |
US6456717B1 (en) * | 1999-01-25 | 2002-09-24 | Avaya Technology Corp. | System for assuring proper acoustic connection of a device under test to a test fixture |
US6625286B1 (en) * | 1999-06-18 | 2003-09-23 | Acoustic Technologies, Inc. | Precise amplitude correction circuit |
US6278785B1 (en) | 1999-09-21 | 2001-08-21 | Acoustic Technologies, Inc. | Echo cancelling process with improved phase control |
US6301364B1 (en) | 1999-10-06 | 2001-10-09 | Acoustic Technologies, Inc. | Tagging echoes with low frequency noise |
US6631196B1 (en) | 2000-04-07 | 2003-10-07 | Gn Resound North America Corporation | Method and device for using an ultrasonic carrier to provide wide audio bandwidth transduction |
US6631197B1 (en) | 2000-07-24 | 2003-10-07 | Gn Resound North America Corporation | Wide audio bandwidth transduction method and device |
JP3075809U (ja) * | 2000-08-23 | 2001-03-06 | 新世代株式会社 | カラオケ用マイク |
US20040240692A1 (en) * | 2000-12-28 | 2004-12-02 | Julstrom Stephen D. | Magnetic coupling adaptor |
US6633202B2 (en) | 2001-04-12 | 2003-10-14 | Gennum Corporation | Precision low jitter oscillator circuit |
EP1251714B2 (de) | 2001-04-12 | 2015-06-03 | Sound Design Technologies Ltd. | Digitales Hörgerätsystem |
US7076073B2 (en) * | 2001-04-18 | 2006-07-11 | Gennum Corporation | Digital quasi-RMS detector |
EP1251715B2 (de) * | 2001-04-18 | 2010-12-01 | Sound Design Technologies Ltd. | Mehrkanal Hörgerät mit Übertragungsmöglichkeiten zwischen den Kanälen |
US20020191800A1 (en) * | 2001-04-19 | 2002-12-19 | Armstrong Stephen W. | In-situ transducer modeling in a digital hearing instrument |
DK1284587T3 (da) * | 2001-08-15 | 2011-10-31 | Sound Design Technologies Ltd | Rekonfigurerbar lavenergi-høreindretning |
US7627129B2 (en) * | 2002-11-21 | 2009-12-01 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for suppressing feedback |
AU2004201374B2 (en) * | 2004-04-01 | 2010-12-23 | Phonak Ag | Audio amplification apparatus |
US7756276B2 (en) * | 2003-08-20 | 2010-07-13 | Phonak Ag | Audio amplification apparatus |
AU2003236382B2 (en) * | 2003-08-20 | 2011-02-24 | Phonak Ag | Feedback suppression in sound signal processing using frequency transposition |
DE102004050304B3 (de) † | 2004-10-14 | 2006-06-14 | Siemens Audiologische Technik Gmbh | Verfahren zur Reduktion von Rückkopplungen bei einem Akustiksystem und Signalverarbeitungsvorrichtung |
US20060093173A1 (en) * | 2004-10-14 | 2006-05-04 | Volkmar Hamacher | Method and signal processor for reducing feedback in an audio system |
US8275137B1 (en) | 2007-03-22 | 2012-09-25 | Parametric Sound Corporation | Audio distortion correction for a parametric reproduction system |
CN101677424B (zh) * | 2008-09-16 | 2012-07-25 | 陈国富 | 具有高频、低频端补偿的高保真度无分频器音箱 |
US7928307B2 (en) * | 2008-11-03 | 2011-04-19 | Qnx Software Systems Co. | Karaoke system |
DE102009007512A1 (de) * | 2009-02-05 | 2010-10-07 | Siemens Medical Instruments Pte. Ltd. | Verfahren und Vorrichtung zur Verbesserung des Signal-Rausch-Verhältnisses eines von einem Hörgerät erfassten Messsignals |
US8494199B2 (en) * | 2010-04-08 | 2013-07-23 | Gn Resound A/S | Stability improvements in hearing aids |
WO2014127126A1 (en) * | 2013-02-14 | 2014-08-21 | New York University | Handphone |
JP6202076B2 (ja) * | 2015-12-07 | 2017-09-27 | オンキヨー株式会社 | 音声処理装置 |
CN112331204B (zh) * | 2020-11-24 | 2024-02-20 | 珠海市杰理科技股份有限公司 | 智能语音识别方法及设备、装置和存储介质 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2556889A (en) * | 1948-05-29 | 1951-06-12 | Rca Corp | Public address system |
US2835814A (en) * | 1956-03-15 | 1958-05-20 | Richard H Dorf | Electrical musical instruments |
US3842204A (en) * | 1972-08-16 | 1974-10-15 | D Leslie | Pulsato generation system |
NL7612358A (nl) * | 1976-11-08 | 1978-05-10 | Philips Nv | Versterkerinrichting voor akoestische signalen voorzien van middelen voor het onderdrukken van ongewenste stoorsignalen. |
US4232192A (en) * | 1978-05-01 | 1980-11-04 | Starkey Labs, Inc. | Moving-average notch filter |
JPS5646352U (de) * | 1979-09-17 | 1981-04-25 | ||
US4449237A (en) * | 1982-04-14 | 1984-05-15 | Cincinnati Electronics Corporation | Audio feedback suppressor |
US4747132A (en) * | 1984-04-09 | 1988-05-24 | Matsushita Electric Industrial Co., Ltd. | Howling canceller |
US4783818A (en) * | 1985-10-17 | 1988-11-08 | Intellitech Inc. | Method of and means for adaptively filtering screeching noise caused by acoustic feedback |
DE3630478C1 (en) * | 1986-09-06 | 1988-01-07 | Ultrasonics Schallfeld Messtec | Motion sensor for dynamic loudspeakers |
EP0280907B1 (de) * | 1987-02-17 | 1991-10-09 | Siemens Audiologische Technik GmbH | Schaltungsanordnung zum Unterdrücken von Schwingungen |
ATE69132T1 (de) * | 1987-02-17 | 1991-11-15 | Siemens Ag | Schaltungsanordnung zum erkennen von schwingungen. |
US5016280A (en) * | 1988-03-23 | 1991-05-14 | Central Institute For The Deaf | Electronic filters, hearing aids and methods |
US4859127A (en) * | 1988-06-03 | 1989-08-22 | Linda Koch Beamish | Spring wire fastener and method of using same |
JPH02155398A (ja) * | 1988-12-07 | 1990-06-14 | Biiba Kk | ハウリング防止装置 |
-
1993
- 1993-09-13 US US08/120,187 patent/US5412734A/en not_active Expired - Fee Related
-
1994
- 1994-09-09 DE DE69434546T patent/DE69434546T2/de not_active Expired - Fee Related
- 1994-09-09 AU AU76850/94A patent/AU7685094A/en not_active Abandoned
- 1994-09-09 EP EP94927388A patent/EP0719493B1/de not_active Expired - Lifetime
- 1994-09-09 WO PCT/US1994/010182 patent/WO1995008249A1/en active IP Right Grant
-
1995
- 1995-05-01 US US08/432,094 patent/US5649019A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0719493A1 (de) | 1996-07-03 |
EP0719493A4 (de) | 1998-12-02 |
EP0719493B1 (de) | 2005-11-16 |
WO1995008249A1 (en) | 1995-03-23 |
US5649019A (en) | 1997-07-15 |
US5412734A (en) | 1995-05-02 |
AU7685094A (en) | 1995-04-03 |
DE69434546T2 (de) | 2006-08-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |