AU2005220246B2 - Method and apparatus for reducing feedback in an audio system - Google Patents

Method and apparatus for reducing feedback in an audio system Download PDF

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Publication number
AU2005220246B2
AU2005220246B2 AU2005220246A AU2005220246A AU2005220246B2 AU 2005220246 B2 AU2005220246 B2 AU 2005220246B2 AU 2005220246 A AU2005220246 A AU 2005220246A AU 2005220246 A AU2005220246 A AU 2005220246A AU 2005220246 B2 AU2005220246 B2 AU 2005220246B2
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AU
Australia
Prior art keywords
signal
feedback
modulation
level
detected
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.)
Ceased
Application number
AU2005220246A
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English (en)
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AU2005220246A1 (en
Inventor
Volkmar Hamacher
Ulrich Kornagel
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.)
Sivantos GmbH
Original Assignee
Sivantos GmbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35563041&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU2005220246(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sivantos GmbH filed Critical Sivantos GmbH
Publication of AU2005220246A1 publication Critical patent/AU2005220246A1/en
Application granted granted Critical
Publication of AU2005220246B2 publication Critical patent/AU2005220246B2/en
Assigned to SIVANTOS GMBH reassignment SIVANTOS GMBH Request to Amend Deed and Register Assignors: SIEMENS AUDIOLOGISCHE TECHNIK GMBH
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • 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
    • H04R2430/03—Synergistic effects of band splitting and sub-band processing

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)
  • Neurosurgery (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Amplifiers (AREA)
AU2005220246A 2004-10-14 2005-10-07 Method and apparatus for reducing feedback in an audio system Ceased AU2005220246B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004050304A DE102004050304B3 (de) 2004-10-14 2004-10-14 Verfahren zur Reduktion von Rückkopplungen bei einem Akustiksystem und Signalverarbeitungsvorrichtung
DE102004050304.4 2004-10-14

Publications (2)

Publication Number Publication Date
AU2005220246A1 AU2005220246A1 (en) 2006-05-04
AU2005220246B2 true AU2005220246B2 (en) 2007-09-27

Family

ID=35563041

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2005220246A Ceased AU2005220246B2 (en) 2004-10-14 2005-10-07 Method and apparatus for reducing feedback in an audio system

Country Status (7)

Country Link
EP (1) EP1648197B2 (ja)
JP (1) JP4309390B2 (ja)
CN (1) CN1774144B (ja)
AT (1) ATE524937T1 (ja)
AU (1) AU2005220246B2 (ja)
DE (1) DE102004050304B3 (ja)
DK (1) DK1648197T4 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006023723A1 (de) * 2006-05-19 2007-11-22 Siemens Audiologische Technik Gmbh Hörvorrichtung mit Rückkopplungsdetektion und entsprechendes Verfahren
US8280088B2 (en) 2006-05-19 2012-10-02 Siemens Audiologische Technik Gmbh Hearing apparatus with feedback detection and corresponding method
DE102006029194B4 (de) 2006-06-26 2010-04-15 Siemens Audiologische Technik Gmbh Vorrichtung und Verfahren zur Schrittweitensteuerung eines adaptiven Filters
EP2148527B1 (en) * 2008-07-24 2014-04-16 Oticon A/S System for reducing acoustic feedback in hearing aids using inter-aural signal transmission, method and use
DE102008036803B3 (de) 2008-08-07 2009-12-17 Siemens Medical Instruments Pte. Ltd. Anordnung und Verfahren zur Regelung einer Rückkopplungsunterdrückung bei Hörvorrichtungen
DE102009016845B3 (de) * 2009-04-08 2010-08-05 Siemens Medical Instruments Pte. Ltd. Anordnung und Verfahren zur Erkennung von Rückkopplungen bei Hörvorrichtungen
CN102740189B (zh) * 2011-04-01 2014-10-08 中国科学院声学研究所 一种基于时间反转的声反馈抑制方法
CN104320750B (zh) * 2014-11-25 2018-08-17 厦门莱亚特医疗器械有限公司 一种测量助听器反馈路径的方法
CN104575520A (zh) * 2014-12-16 2015-04-29 中国农业大学 一种结合心理声学评价的声波监测装置及方法
WO2023277022A1 (ja) * 2021-06-28 2023-01-05 ヤマハ株式会社 音響処理方法、音響処理システムおよびプログラム

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783818A (en) † 1985-10-17 1988-11-08 Intellitech Inc. Method of and means for adaptively filtering screeching noise caused by acoustic feedback
US5259033A (en) † 1989-08-30 1993-11-02 Gn Danavox As Hearing aid having compensation for acoustic feedback
US5412734A (en) † 1993-09-13 1995-05-02 Thomasson; Samuel L. Apparatus and method for reducing acoustic feedback
KR100378449B1 (ko) † 1994-04-12 2003-06-11 코닌클리케 필립스 일렉트로닉스 엔.브이. 개선된에코제거기를갖는신호증폭기시스템
US6347148B1 (en) * 1998-04-16 2002-02-12 Dspfactory Ltd. Method and apparatus for feedback reduction in acoustic systems, particularly in hearing aids
US6252967B1 (en) † 1999-01-21 2001-06-26 Acoustic Technologies, Inc. Reducing acoustic feedback with digital modulation
DE19904538C1 (de) * 1999-02-04 2000-07-13 Siemens Audiologische Technik Verfahren zur Rückkopplungserkennung in einem Hörgerät und Hörgerät
DK1052881T3 (da) * 1999-05-12 2011-02-14 Siemens Audiologische Technik Høreapparat med oscillationsdetektor samt fremgangsmåde til konstatering af oscillationer i et høreapparat
EP1203510B1 (en) * 1999-07-19 2006-06-14 Oticon A/S Feedback cancellation with low frequency input
EP2066139A3 (en) † 2000-09-25 2010-06-23 Widex A/S A hearing aid
AU2001291588A1 (en) * 2001-10-05 2001-12-17 Phonak Ag Method for verifying the availability of a signal component and device for carrying out said method
US7197152B2 (en) * 2002-02-26 2007-03-27 Otologics Llc Frequency response equalization system for hearing aid microphones
US7092532B2 (en) † 2003-03-31 2006-08-15 Unitron Hearing Ltd. Adaptive feedback canceller

Also Published As

Publication number Publication date
EP1648197A3 (de) 2008-01-23
DK1648197T4 (en) 2015-04-13
ATE524937T1 (de) 2011-09-15
EP1648197B1 (de) 2011-09-14
JP2006115509A (ja) 2006-04-27
EP1648197A2 (de) 2006-04-19
DK1648197T3 (da) 2011-12-19
CN1774144A (zh) 2006-05-17
JP4309390B2 (ja) 2009-08-05
EP1648197B2 (de) 2015-01-07
AU2005220246A1 (en) 2006-05-04
DE102004050304B3 (de) 2006-06-14
CN1774144B (zh) 2013-12-18

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Legal Events

Date Code Title Description
FGA Letters patent sealed or granted (standard patent)
HB Alteration of name in register

Owner name: SIVANTOS GMBH

Free format text: FORMER NAME(S): SIEMENS AUDIOLOGISCHE TECHNIK GMBH

MK14 Patent ceased section 143(a) (annual fees not paid) or expired