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EP2357850A3 - Method and hearing aid for recognising and suppressing feedback from a directional microphone - Google Patents

Method and hearing aid for recognising and suppressing feedback from a directional microphone Download PDF

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Publication number
EP2357850A3
EP2357850A3 EP10191186A EP10191186A EP2357850A3 EP 2357850 A3 EP2357850 A3 EP 2357850A3 EP 10191186 A EP10191186 A EP 10191186A EP 10191186 A EP10191186 A EP 10191186A EP 2357850 A3 EP2357850 A3 EP 2357850A3
Authority
EP
European Patent Office
Prior art keywords
signal
feedback
hearing aid
recognising
directional microphone
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
EP10191186A
Other languages
German (de)
French (fr)
Other versions
EP2357850B1 (en
EP2357850A2 (en
Inventor
Sebastian Pape
Stefan Petrausch
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
Siemens Medical Instruments 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 Siemens Medical Instruments Pte Ltd filed Critical Siemens Medical Instruments Pte Ltd
Publication of EP2357850A2 publication Critical patent/EP2357850A2/en
Publication of EP2357850A3 publication Critical patent/EP2357850A3/en
Application granted granted Critical
Publication of EP2357850B1 publication Critical patent/EP2357850B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/45Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/453Prevention of acoustic reaction, i.e. acoustic oscillatory feedback electronically
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/40Arrangements for obtaining a desired directivity characteristic
    • H04R25/405Arrangements for obtaining a desired directivity characteristic by combining a plurality of transducers

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)

Abstract

Die Erfindung gibt ein Verfahren zum Betrieb eines Hörgeräts (30) mit mindestens zwei omnidirektionalen, Mikrofonsignale (40) abgebenden Mikrofonen (31) und einer Detektionseinheit (37) zum Feststellen einer akustischen Rückkopplung (34) an. Das Verfahren umfasst eine erste elektrische Verschaltung (35) der Mikrofone (31) miteinander zur Bildung eines ersten Signals (41) mit Richtwirkung, eine Einstellung der Richtwirkung des ersten Signals (41) derart, dass die akustische Rückkopplung im ersten Signal (41) maximiert wird, und eine Analyse des ersten Signals (41) durch die Detektionseinheit (37) zum Feststellen der akustischen Rückkopplung. Die Erfindung gibt auch ein zugehöriges Hörgerät (30) an. Vorteilhaft daran ist, dass eine Detektion der Rückkopplung durch ein Signal (41) mit verbessertem Signal/Rauschverhältnis erfolgen kann. Rückkopplungen werden so verlässlicher und schneller erkannt.

Figure imgaf001
The invention provides a method for operating a hearing device (30) with at least two omnidirectional microphones (31) emitting microphone signals (40) and a detection unit (37) for detecting an acoustic feedback (34). The method comprises a first electrical interconnection (35) of the microphones (31) with each other to form a first signal (41) with directivity, an adjustment of the directivity of the first signal (41) such that the acoustic feedback in the first signal (41) maximizes and an analysis of the first signal (41) by the acoustic feedback detection unit (37). The invention also provides an associated hearing aid (30). The advantage of this is that a detection of the feedback by a signal (41) can be carried out with improved signal / noise ratio. Feedback is thus detected more reliably and faster.
Figure imgaf001

EP10191186.5A 2009-12-22 2010-11-15 Method and hearing aid for recognising and suppressing feedback from a directional microphone Not-in-force EP2357850B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009060094A DE102009060094B4 (en) 2009-12-22 2009-12-22 Method and hearing aid for feedback detection and suppression with a directional microphone

Publications (3)

Publication Number Publication Date
EP2357850A2 EP2357850A2 (en) 2011-08-17
EP2357850A3 true EP2357850A3 (en) 2011-09-21
EP2357850B1 EP2357850B1 (en) 2017-09-27

Family

ID=43640514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10191186.5A Not-in-force EP2357850B1 (en) 2009-12-22 2010-11-15 Method and hearing aid for recognising and suppressing feedback from a directional microphone

Country Status (5)

Country Link
US (1) US8588444B2 (en)
EP (1) EP2357850B1 (en)
CN (1) CN102104821B (en)
DE (1) DE102009060094B4 (en)
DK (1) DK2357850T3 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011027005A2 (en) * 2010-12-20 2011-03-10 Phonak Ag Method and system for speech enhancement in a room
DK2890154T3 (en) * 2013-12-27 2018-02-05 Gn Resound As Hearing aid with feedback suppression
US9628923B2 (en) 2013-12-27 2017-04-18 Gn Hearing A/S Feedback suppression
JP6019098B2 (en) * 2013-12-27 2016-11-02 ジーエヌ リザウンド エー/エスGn Resound A/S Feedback suppression
EP3038383A1 (en) * 2014-12-23 2016-06-29 Oticon A/s Hearing device with image capture capabilities
WO2016112969A1 (en) * 2015-01-14 2016-07-21 Widex A/S Method of operating a hearing aid system and a hearing aid system
US9838804B2 (en) * 2015-02-27 2017-12-05 Cochlear Limited Methods, systems, and devices for adaptively filtering audio signals
CN108630216B (en) * 2018-02-15 2021-08-27 湖北工业大学 MPNLMS acoustic feedback suppression method based on double-microphone model
EP3582051A1 (en) 2018-06-12 2019-12-18 Siemens Aktiengesellschaft Comprehensive fault analysis for control devices and industrial technical installations
EP3799444A1 (en) 2019-09-25 2021-03-31 Oticon A/s A hearing aid comprising a directional microphone system
DE102020206367A1 (en) * 2020-05-20 2021-11-25 Sivantos Pte. Ltd. Method for operating a hearing aid and hearing aid
JP2024512867A (en) * 2022-03-04 2024-03-21 シェンツェン・ショックス・カンパニー・リミテッド hearing aids

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1469702A2 (en) * 2004-03-15 2004-10-20 Phonak Ag Feedback suppression
WO2005091675A1 (en) * 2004-03-23 2005-09-29 Oticon A/S Hearing aid with anti feedback system
WO2007042025A1 (en) * 2005-10-11 2007-04-19 Widex A/S Hearing aid and a method of processing input signals in a hearing aid
WO2007113282A1 (en) * 2006-04-01 2007-10-11 Widex A/S Hearing aid, and a method for control of adaptation rate in anti-feedback systems for hearing aids

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997014266A2 (en) * 1995-10-10 1997-04-17 Audiologic, Inc. Digital signal processing hearing aid with processing strategy selection
US6072884A (en) * 1997-11-18 2000-06-06 Audiologic Hearing Systems Lp Feedback cancellation apparatus and methods
US6275596B1 (en) * 1997-01-10 2001-08-14 Gn Resound Corporation Open ear canal hearing aid system
WO2000019770A1 (en) 1998-09-29 2000-04-06 Siemens Audiologische Technik Gmbh Hearing aid and method for processing microphone signals in a hearing aid
JP4145323B2 (en) * 2003-09-19 2008-09-03 ヴェーデクス・アクティーセルスカプ Directivity control method for sound reception characteristics of hearing aid and signal processing apparatus for hearing aid having controllable directivity characteristics
US7324651B2 (en) * 2004-03-15 2008-01-29 Phonak Ag Feedback suppression
EP2317778B1 (en) * 2006-03-03 2019-05-08 Widex A/S Hearing aid and method of utilizing gain limitation in a hearing aid
US7826632B2 (en) * 2006-08-03 2010-11-02 Phonak Ag Method of adjusting a hearing instrument
EP2046073B1 (en) * 2007-10-03 2017-03-08 Oticon A/S Hearing aid system with feedback arrangement to predict and cancel acoustic feedback, method and use

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1469702A2 (en) * 2004-03-15 2004-10-20 Phonak Ag Feedback suppression
WO2005091675A1 (en) * 2004-03-23 2005-09-29 Oticon A/S Hearing aid with anti feedback system
WO2007042025A1 (en) * 2005-10-11 2007-04-19 Widex A/S Hearing aid and a method of processing input signals in a hearing aid
WO2007113282A1 (en) * 2006-04-01 2007-10-11 Widex A/S Hearing aid, and a method for control of adaptation rate in anti-feedback systems for hearing aids

Also Published As

Publication number Publication date
DE102009060094B4 (en) 2013-03-14
US20110150250A1 (en) 2011-06-23
EP2357850B1 (en) 2017-09-27
DE102009060094A1 (en) 2011-06-30
CN102104821B (en) 2015-12-02
CN102104821A (en) 2011-06-22
US8588444B2 (en) 2013-11-19
DK2357850T3 (en) 2018-01-08
EP2357850A2 (en) 2011-08-17

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