EP2981099A3 - Verfahren und vorrichtung zur rückkopplungsunterdrückung - Google Patents

Verfahren und vorrichtung zur rückkopplungsunterdrückung Download PDF

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Publication number
EP2981099A3
EP2981099A3 EP15178938.5A EP15178938A EP2981099A3 EP 2981099 A3 EP2981099 A3 EP 2981099A3 EP 15178938 A EP15178938 A EP 15178938A EP 2981099 A3 EP2981099 A3 EP 2981099A3
Authority
EP
European Patent Office
Prior art keywords
feedback
transducer
acousto
acoustic
adaptive filter
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.)
Granted
Application number
EP15178938.5A
Other languages
English (en)
French (fr)
Other versions
EP2981099B1 (de
EP2981099A2 (de
Inventor
Tobias Daniel Rosenkranz
Henning Puder
Tobias Wurzbacher
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 Pte Ltd
Original Assignee
Sivantos Pte 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
Application filed by Sivantos Pte Ltd filed Critical Sivantos Pte Ltd
Publication of EP2981099A2 publication Critical patent/EP2981099A2/de
Publication of EP2981099A3 publication Critical patent/EP2981099A3/de
Application granted granted Critical
Publication of EP2981099B1 publication Critical patent/EP2981099B1/de
Active 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
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/41—Detection or adaptation of hearing aid parameters or programs to listening situation, e.g. pub, forest
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/01—Hearing devices using active noise cancellation

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)

Abstract

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Reduktion von Rückkopplungen in einem Hörhilfegerät. Das Verfahren weist den Schritt auf, eine erste Rückkopplungsübertragungsfunktion zu einem ersten Zeitpunkt auf einem Rückkopplungspfad von einer Signalverarbeitungseinrichtung über einen elektro-akustischen Wandler, einen akustischen Signalpfad von dem elektro-akustischen Wandler zu einem akusto-elektrischen Wandler und über den akusto-elektrischen Wandler zurück zu der Signalverarbeitungseinrichtung zu erfassen. In einem Schritt wird eine gewichtete Mittelwertsfunktion in Abhängigkeit von Amplitudenbeträgen der ersten Rückkopplungsübertragungsfunktion bestimmt. Eine zweiten Rückkopplungsübertragungsfunktion wird mittels eines adaptiven Filters, geschätzt, wobei Koeffizienten des adaptiven Filters in Abhängigkeit von der gewichteten Mittelwertsfunktion bestimmt werden. Das adaptive Filter wird auf ein Signal angewendet, das von einem akustischen Eingangssignal des akusto-elektrischen Wandlers abgeleitet wird.
EP15178938.5A 2014-08-01 2015-07-29 Verfahren und vorrichtung zur rückkopplungsunterdrückung Active EP2981099B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014215165.1A DE102014215165A1 (de) 2014-08-01 2014-08-01 Verfahren und Vorrichtung zur Rückkopplungsunterdrückung

Publications (3)

Publication Number Publication Date
EP2981099A2 EP2981099A2 (de) 2016-02-03
EP2981099A3 true EP2981099A3 (de) 2016-03-16
EP2981099B1 EP2981099B1 (de) 2022-12-28

Family

ID=53871850

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15178938.5A Active EP2981099B1 (de) 2014-08-01 2015-07-29 Verfahren und vorrichtung zur rückkopplungsunterdrückung

Country Status (6)

Country Link
US (2) US9872114B2 (de)
EP (1) EP2981099B1 (de)
CN (1) CN105323692B (de)
AU (1) AU2015207943A1 (de)
DE (1) DE102014215165A1 (de)
DK (1) DK2981099T3 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3139636B1 (de) * 2015-09-07 2019-10-16 Oticon A/s Hörgerät mit einem auf signalenergieverschiebung basierenden rückkopplungsunterdrückungssystem
CN110430520B (zh) * 2019-08-12 2021-07-13 会听声学科技（北京）有限公司 一种反馈滤波器的设计方法、设计装置及耳机
DE102019213810B3 (de) * 2019-09-11 2020-11-19 Sivantos Pte. Ltd. Verfahren zum Betrieb eines Hörgeräts und Hörgerät
EP4021017A1 (de) * 2020-12-28 2022-06-29 Oticon A/s Hörgerät mit rückkopplungssteuerungssystem
EP4132009A3 (de) * 2021-08-05 2023-02-22 Oticon A/s Hörgerät mit rückkopplungssteuerungssystem

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1228665A2 (de) * 1999-07-30 2002-08-07 GN ReSound as Vorrichtung und verfahren zur rückkopplungsunterdrückung unter verwendung von einem adaptiven referenzfilter
US6876751B1 (en) * 1998-09-30 2005-04-05 House Ear Institute Band-limited adaptive feedback canceller for hearing aids
EP2148525A1 (de) * 2008-07-24 2010-01-27 Oticon A/S Rückkopplungspfadschätzung auf Codebuchbasis
WO2010040863A2 (en) * 2010-01-15 2010-04-15 Phonak Ag A method for operating a hearing device as well as a hearing device
EP2541973A1 (de) * 2011-06-27 2013-01-02 Oticon A/s Rückkoppelungssteuerung in einer Hörvorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101568058B (zh) * 2008-04-25 2012-07-04 王青云 一种基于加权次梯度投影的数字助听器回声路径估计方法
US10602282B2 (en) * 2008-12-23 2020-03-24 Gn Resound A/S Adaptive feedback gain correction
DK2391145T3 (en) 2010-05-31 2017-10-09 Gn Resound As A fitting instrument and method for fitting a hearing aid to compensate for a user's hearing loss
DK2613567T3 (da) * 2012-01-03 2014-10-27 Oticon As Fremgangsmåde til forbedring af et langtidstilbagekoblingsvejestimat i en lytteanordning

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6876751B1 (en) * 1998-09-30 2005-04-05 House Ear Institute Band-limited adaptive feedback canceller for hearing aids
EP1228665A2 (de) * 1999-07-30 2002-08-07 GN ReSound as Vorrichtung und verfahren zur rückkopplungsunterdrückung unter verwendung von einem adaptiven referenzfilter
EP2148525A1 (de) * 2008-07-24 2010-01-27 Oticon A/S Rückkopplungspfadschätzung auf Codebuchbasis
WO2010040863A2 (en) * 2010-01-15 2010-04-15 Phonak Ag A method for operating a hearing device as well as a hearing device
EP2541973A1 (de) * 2011-06-27 2013-01-02 Oticon A/s Rückkoppelungssteuerung in einer Hörvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PUDER HENNING ET AL: "Controlling the adaptation of feedback cancellation filters - problem analysis and solution approaches", 2004 12TH EUROPEAN SIGNAL PROCESSING CONFERENCE, IEEE, 6 September 2004 (2004-09-06), pages 25 - 28, XP032760401, ISBN: 978-3-200-00165-7, [retrieved on 20150403] *

Also Published As

Publication number Publication date
US9872114B2 (en) 2018-01-16
CN105323692A (zh) 2016-02-10
US20180041846A1 (en) 2018-02-08
DK2981099T3 (da) 2023-03-13
CN105323692B (zh) 2019-02-22
US20160037269A1 (en) 2016-02-04
DE102014215165A1 (de) 2016-02-18
EP2981099B1 (de) 2022-12-28
US10334371B2 (en) 2019-06-25
EP2981099A2 (de) 2016-02-03
AU2015207943A1 (en) 2016-02-18

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