EP1571880A3 - Hearing aid with a plurality of microphones and corresponding signal generating method - Google Patents

Hearing aid with a plurality of microphones and corresponding signal generating method Download PDF

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Publication number
EP1571880A3
EP1571880A3 EP05101230A EP05101230A EP1571880A3 EP 1571880 A3 EP1571880 A3 EP 1571880A3 EP 05101230 A EP05101230 A EP 05101230A EP 05101230 A EP05101230 A EP 05101230A EP 1571880 A3 EP1571880 A3 EP 1571880A3
Authority
EP
European Patent Office
Prior art keywords
hearing aid
microphones
microphone
signal generating
corresponding signal
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
EP05101230A
Other languages
German (de)
French (fr)
Other versions
EP1571880B1 (en
EP1571880A2 (en
Inventor
Uwe Rass
Christian Weistenhöfer
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
Siemens Audioligische Technik 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34745410&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1571880(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens Audioligische Technik GmbH filed Critical Siemens Audioligische Technik GmbH
Publication of EP1571880A2 publication Critical patent/EP1571880A2/en
Publication of EP1571880A3 publication Critical patent/EP1571880A3/en
Application granted granted Critical
Publication of EP1571880B1 publication Critical patent/EP1571880B1/en
Revoked 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
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/405—Arrangements for obtaining a desired directivity characteristic by combining a plurality of transducers
    • 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
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/407—Circuits for combining signals of a plurality of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2410/00—Microphones
    • H04R2410/01—Noise reduction using microphones having different directional characteristics

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)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Der Dynamikbereich von Hörgeräten soll verbessert werden. Daher wird eine Kombination aus einem Silizium-Mikrofon (SM) und einem Elektretmikrofon (EM) für den Hörgeräteeingang eingesetzt. Damit können die tiefen Frequenzen von dem Silizium-Mikrofon (SM) und die hohen Frequenzen von dem Elektretmikrofon (EM) aufgenommen werden, um ein breitbandiges Hörgeräte-Eingangssignal zu erzeugen. Auf diese Weise lässt sich der Vorteil eines Silizium-Mikrofons ausnutzen, das bei niedrigen Frequenzen ein geringeres Eigenrauschen besitzt als ein herkömmliches Elektretmikrofon.

Figure imgaf001
The dynamic range of hearing aids should be improved. Therefore, a combination of a silicon microphone (SM) and an electret microphone (EM) is used for the hearing aid input. Thus, the low frequencies of the silicon microphone (SM) and the high frequencies of the electret microphone (EM) can be recorded to produce a broadband hearing aid input signal. In this way, the advantage of a silicon microphone can be exploited, which has a lower self-noise at low frequencies than a conventional electret microphone.
Figure imgaf001
EP05101230A 2004-03-05 2005-02-18 Hearing aid with a plurality of microphones Revoked EP1571880B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004010863 2004-03-05
DE102004010863A DE102004010863B3 (en) 2004-03-05 2004-03-05 Hearing aid with several microphones

Publications (3)

Publication Number Publication Date
EP1571880A2 EP1571880A2 (en) 2005-09-07
EP1571880A3 true EP1571880A3 (en) 2009-07-29
EP1571880B1 EP1571880B1 (en) 2010-07-21

Family

ID=34745410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05101230A Revoked EP1571880B1 (en) 2004-03-05 2005-02-18 Hearing aid with a plurality of microphones

Country Status (4)

Country Link
US (1) US7756282B2 (en)
EP (1) EP1571880B1 (en)
DE (2) DE102004010863B3 (en)
DK (1) DK1571880T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8107654B2 (en) * 2008-05-21 2012-01-31 Starkey Laboratories, Inc Mixing of in-the-ear microphone and outside-the-ear microphone signals to enhance spatial perception
WO2009143434A2 (en) * 2008-05-23 2009-11-26 Analog Devices, Inc. Wide dynamic range microphone
US8233637B2 (en) 2009-01-20 2012-07-31 Nokia Corporation Multi-membrane microphone for high-amplitude audio capture
US9380380B2 (en) 2011-01-07 2016-06-28 Stmicroelectronics S.R.L. Acoustic transducer and interface circuit
JP5872163B2 (en) 2011-01-07 2016-03-01 オムロン株式会社 Acoustic transducer and microphone using the acoustic transducer
DE102020202206A1 (en) 2020-02-20 2021-08-26 Sivantos Pte. Ltd. Method for suppressing inherent noise in a microphone arrangement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10316287B3 (en) * 2003-04-09 2004-07-15 Siemens Audiologische Technik Gmbh Directional microphone for hearing aid having 2 acoustically coupled membranes each coupled to respective sound entry opening

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458668A (en) * 1966-12-06 1969-07-29 Willco Horgerate Medizinische Directional hearing aid
US5715319A (en) * 1996-05-30 1998-02-03 Picturetel Corporation Method and apparatus for steerable and endfire superdirective microphone arrays with reduced analog-to-digital converter and computational requirements
DE19635229C2 (en) * 1996-08-30 2001-04-26 Siemens Audiologische Technik Direction sensitive hearing aid
WO2001087009A2 (en) * 2000-05-08 2001-11-15 Microbridge Technologies Inc. Gas flow sensor, speaker system and microphone
US20040101153A1 (en) * 2001-05-08 2004-05-27 Oleg Grudin Gas flow sensor, speaker system and microphone, utilizing measurement absolute of time-variations in absolute pressure
US6870939B2 (en) * 2001-11-28 2005-03-22 Industrial Technology Research Institute SMT-type structure of the silicon-based electret condenser microphone

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10316287B3 (en) * 2003-04-09 2004-07-15 Siemens Audiologische Technik Gmbh Directional microphone for hearing aid having 2 acoustically coupled membranes each coupled to respective sound entry opening

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
THOMAS A. POWERS AND VOLKMAR HAMACHER: "Three-microphone instrument is designed to extend benefits of directionality", THE HEARING JOURNAL, vol. 55, October 2002 (2002-10-01), pages 38 - 45, XP002532166 *

Also Published As

Publication number Publication date
US20050196001A1 (en) 2005-09-08
DK1571880T3 (en) 2010-11-01
EP1571880B1 (en) 2010-07-21
US7756282B2 (en) 2010-07-13
DE502005009928D1 (en) 2010-09-02
DE102004010863B3 (en) 2005-10-20
EP1571880A2 (en) 2005-09-07

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