EP1469702A3 - Feedback suppression - Google Patents
Feedback suppression Download PDFInfo
- Publication number
- EP1469702A3 EP1469702A3 EP04006073A EP04006073A EP1469702A3 EP 1469702 A3 EP1469702 A3 EP 1469702A3 EP 04006073 A EP04006073 A EP 04006073A EP 04006073 A EP04006073 A EP 04006073A EP 1469702 A3 EP1469702 A3 EP 1469702A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- feedback
- feedback suppression
- suppression
- path
- beamformer
- 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
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
Abstract
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK04006073.3T DK1469702T3 (en) | 2004-03-15 | 2004-03-15 | Feedback suppression |
EP04006073.3A EP1469702B1 (en) | 2004-03-15 | 2004-03-15 | Feedback suppression |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04006073.3A EP1469702B1 (en) | 2004-03-15 | 2004-03-15 | Feedback suppression |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1469702A2 EP1469702A2 (en) | 2004-10-20 |
EP1469702A3 true EP1469702A3 (en) | 2004-11-17 |
EP1469702B1 EP1469702B1 (en) | 2016-11-23 |
Family
ID=32893043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04006073.3A Expired - Lifetime EP1469702B1 (en) | 2004-03-15 | 2004-03-15 | Feedback suppression |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1469702B1 (en) |
DK (1) | DK1469702T3 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK1949755T3 (en) | 2005-10-11 | 2010-08-23 | Widex As | Hearing aid and method of processing input signals in a hearing aid |
DE102008049086B4 (en) * | 2008-09-26 | 2011-12-15 | Siemens Medical Instruments Pte. Ltd. | Hearing aid with a directional microphone system and method for operating such a hearing aid |
DE102009060094B4 (en) * | 2009-12-22 | 2013-03-14 | Siemens Medical Instruments Pte. Ltd. | Method and hearing aid for feedback detection and suppression with a directional microphone |
EP2439958B1 (en) | 2010-10-06 | 2013-06-05 | Oticon A/S | A method of determining parameters in an adaptive audio processing algorithm and an audio processing system |
EP2656632A2 (en) * | 2010-12-20 | 2013-10-30 | Phonak AG | Method and system for speech enhancement in a room |
US9173028B2 (en) * | 2011-07-14 | 2015-10-27 | Sonova Ag | Speech enhancement system and method |
DK3249955T3 (en) | 2016-05-23 | 2019-11-18 | Oticon As | CONFIGURABLE HEARING, INCLUDING A RADIATION FORM FILTER UNIT AND AMPLIFIER |
DK3525488T3 (en) * | 2018-02-09 | 2020-11-30 | Oticon As | HEARING DEVICE WHICH INCLUDES A RADIATOR FILTER FILTER TO REDUCE FEEDBACK |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0656737A1 (en) * | 1993-11-10 | 1995-06-07 | Phonak Ag | Hearing aid with cancellation of acoustic feedback |
WO2000019605A2 (en) * | 1998-09-30 | 2000-04-06 | House Ear Institute | Band-limited adaptive feedback canceller for hearing aids |
WO2000033634A2 (en) * | 2000-03-31 | 2000-06-15 | Phonak Ag | Method for providing the transmission characteristics of a microphone arrangement and microphone arrangement |
EP1080606A1 (en) * | 1998-05-19 | 2001-03-07 | Audiologic Hearing Systems, L.P. | Feedback cancellation improvements |
-
2004
- 2004-03-15 DK DK04006073.3T patent/DK1469702T3/en active
- 2004-03-15 EP EP04006073.3A patent/EP1469702B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0656737A1 (en) * | 1993-11-10 | 1995-06-07 | Phonak Ag | Hearing aid with cancellation of acoustic feedback |
EP1080606A1 (en) * | 1998-05-19 | 2001-03-07 | Audiologic Hearing Systems, L.P. | Feedback cancellation improvements |
WO2000019605A2 (en) * | 1998-09-30 | 2000-04-06 | House Ear Institute | Band-limited adaptive feedback canceller for hearing aids |
WO2000033634A2 (en) * | 2000-03-31 | 2000-06-15 | Phonak Ag | Method for providing the transmission characteristics of a microphone arrangement and microphone arrangement |
Non-Patent Citations (4)
Title |
---|
HERBORDT W ET AL: "Computationally Efficient Frequency-Domain Combination of Acoustic Echo Cancellation and Robust Adaptive Beamforming", PROCEEDINGS EUROSPEECH, vol. 2, September 2001 (2001-09-01), AALBORG, DANMARK, pages 1001 - 1004, XP007004503 * |
HOSHUYAMA O ET AL: "A ROBUST ADAPTIVE BEAMFORMER FOR MICROPHONE ARRAYS WITH A BLOCKING MATRIX USING CONSTRAINED ADAPTIVE FILTERS", IEEE TRANSACTIONS ON SIGNAL PROCESSING, IEEE, INC. NEW YORK, US, vol. 47, no. 10, October 1999 (1999-10-01), pages 2677 - 2684, XP000947154, ISSN: 1053-587X * |
HSIANG-FENG CHI, SHAWN X. GAO, SIGFRID D. SOLI, ABEER ALWAN: "Band-limited feedback cancellation with a modified filtered-X LMS algorithm for hearing aids", SPEECH COMMUNICATION, vol. 39, no. 1-2, January 2003 (2003-01-01), ELSEVIER SCIENCE, pages 147 - 161, XP002295470 * |
MAXWELL J A ET AL: "REDUCING ACOUSTIC FEEDBACK IN HEARING AIDS", IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING, IEEE INC. NEW YORK, US, vol. 3, no. 4, 1 July 1995 (1995-07-01), pages 304 - 313, XP000633074, ISSN: 1063-6676 * |
Also Published As
Publication number | Publication date |
---|---|
EP1469702A2 (en) | 2004-10-20 |
DK1469702T3 (en) | 2017-02-13 |
EP1469702B1 (en) | 2016-11-23 |
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