EP2999236A3 - Method and apparatus for feedback suppression - Google Patents

Method and apparatus for feedback suppression Download PDF

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Publication number
EP2999236A3
EP2999236A3 EP15182757.3A EP15182757A EP2999236A3 EP 2999236 A3 EP2999236 A3 EP 2999236A3 EP 15182757 A EP15182757 A EP 15182757A EP 2999236 A3 EP2999236 A3 EP 2999236A3
Authority
EP
European Patent Office
Prior art keywords
feedback
signal
feedback suppression
transfer function
estimated
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.)
Withdrawn
Application number
EP15182757.3A
Other languages
German (de)
French (fr)
Other versions
EP2999236A2 (en
Inventor
Tobias Daniel Rosenkranz
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 EP2999236A2 publication Critical patent/EP2999236A2/en
Publication of EP2999236A3 publication Critical patent/EP2999236A3/en
Withdrawn legal-status Critical Current

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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

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)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Amplifiers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Reduktion von Rückkopplungen in einem Hörhilfegerät sowie eine entsprechende Vorrichtung. Bei dem Verfahren wird eine erste Übertragungsfunktion für einen ersten Abschnitt einer Signalantwort geschätzt, die einen Rückkopplungspfad umfasst. Eine Energie eines Rückkopplungssignals einer zweiten Übertragungsfunktion des Rückkopplungspfades wird für einen zweiten Abschnitt der Signalantwort geschätzt und ein Parameter der Signalverarbeitungseinrichtung und/oder der Rückkopplungsunterdrückungseinheit wird in Abhängigkeit von der geschätzten Energie eingestellt.

Figure imgaf001
The invention relates to a method for reducing feedback in a hearing aid device and to a corresponding device. The method estimates a first transfer function for a first portion of a signal response that includes a feedback path. An energy of a feedback signal of a second transfer function of the feedback path is estimated for a second portion of the signal response and a parameter of the signal processing means and / or the feedback suppression unit is adjusted in dependence on the estimated energy.
Figure imgaf001
EP15182757.3A 2014-09-17 2015-08-27 Method and apparatus for feedback suppression Withdrawn EP2999236A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014218672.2A DE102014218672B3 (en) 2014-09-17 2014-09-17 Method and apparatus for feedback suppression

Publications (2)

Publication Number Publication Date
EP2999236A2 EP2999236A2 (en) 2016-03-23
EP2999236A3 true EP2999236A3 (en) 2016-04-27

Family

ID=54011652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15182757.3A Withdrawn EP2999236A3 (en) 2014-09-17 2015-08-27 Method and apparatus for feedback suppression

Country Status (5)

Country Link
US (1) US9832574B2 (en)
EP (1) EP2999236A3 (en)
CN (1) CN105430586B (en)
AU (1) AU2015227437B2 (en)
DE (1) DE102014218672B3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015216822B4 (en) 2015-09-02 2017-07-06 Sivantos Pte. Ltd. A method of suppressing feedback in a hearing aid
EP3525489B1 (en) * 2018-02-09 2021-05-12 Oticon A/s A method of fitting a hearing device to a user's needs, a programming device, and a hearing system
US10681458B2 (en) * 2018-06-11 2020-06-09 Cirrus Logic, Inc. Techniques for howling detection

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008065209A2 (en) * 2008-01-22 2008-06-05 Phonak Ag Method for determining a maximum gain in a hearing device as well as a hearing device
EP2203000A1 (en) * 2008-12-23 2010-06-30 GN Resound A/S Adaptive feedback gain correction
EP2661103A1 (en) * 2012-05-02 2013-11-06 Oticon A/s Method of fitting a hearing device
JP5588054B1 (en) * 2013-09-06 2014-09-10 リオン株式会社 Hearing aids, loudspeakers and howling cancellers

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5442268A (en) * 1993-05-13 1995-08-15 Hughes Aircraft Company Torque oscillation compensation using torque emulator/observer feedback
DE10244184B3 (en) * 2002-09-23 2004-04-15 Siemens Audiologische Technik Gmbh Feedback compensation for hearing aids with system distance estimation
DE602004006912T2 (en) * 2004-04-30 2008-02-28 Phonak Ag A method for processing an acoustic signal and a hearing aid
DK1825712T3 (en) * 2004-12-16 2010-05-17 Widex As Hearing aid with feedback model gain estimation
DK1869948T3 (en) * 2005-03-29 2016-05-02 Gn Resound As Hearing aid with adaptive compressor time constants
EP2002688B1 (en) * 2006-03-31 2010-02-03 Widex A/S Hearing aid and method of estimating dynamic gain limitation in a hearing aid
DK2028877T3 (en) * 2007-08-24 2012-05-21 Oticon As Hearing aid with anti-feedback system
EP2148525B1 (en) * 2008-07-24 2013-06-05 Oticon A/S Codebook based feedback path estimation
JP5092974B2 (en) * 2008-07-30 2012-12-05 富士通株式会社 Transfer characteristic estimating apparatus, noise suppressing apparatus, transfer characteristic estimating method, and computer program
JP4530109B1 (en) * 2009-05-25 2010-08-25 パナソニック株式会社 Hearing aid system
EP2284833A1 (en) * 2009-08-03 2011-02-16 Bernafon AG A method for monitoring the influence of ambient noise on an adaptive filter for acoustic feedback cancellation
DK2871857T3 (en) * 2013-11-07 2020-08-03 Oticon As Binaural hearing aid system that includes two wireless interfaces
EP2988529B1 (en) * 2014-08-20 2019-12-04 Sivantos Pte. Ltd. Adaptive separation frequency in hearing aids

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008065209A2 (en) * 2008-01-22 2008-06-05 Phonak Ag Method for determining a maximum gain in a hearing device as well as a hearing device
EP2203000A1 (en) * 2008-12-23 2010-06-30 GN Resound A/S Adaptive feedback gain correction
EP2661103A1 (en) * 2012-05-02 2013-11-06 Oticon A/s Method of fitting a hearing device
JP5588054B1 (en) * 2013-09-06 2014-09-10 リオン株式会社 Hearing aids, loudspeakers and howling cancellers
US20150071454A1 (en) * 2013-09-06 2015-03-12 Rion Co., Ltd. Hearing aid, loudspeaker, and feedback canceller

Also Published As

Publication number Publication date
US20160080875A1 (en) 2016-03-17
CN105430586A (en) 2016-03-23
CN105430586B (en) 2019-06-11
AU2015227437B2 (en) 2017-06-29
DE102014218672B3 (en) 2016-03-10
AU2015227437A1 (en) 2016-03-31
EP2999236A2 (en) 2016-03-23
US9832574B2 (en) 2017-11-28

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