CA2479675A1 - Directional controller for a hearing aid - Google Patents

Directional controller for a hearing aid

Info

Publication number
CA2479675A1
CA2479675A1 CA002479675A CA2479675A CA2479675A1 CA 2479675 A1 CA2479675 A1 CA 2479675A1 CA 002479675 A CA002479675 A CA 002479675A CA 2479675 A CA2479675 A CA 2479675A CA 2479675 A1 CA2479675 A1 CA 2479675A1
Authority
CA
Canada
Prior art keywords
characteristic
hearing aid
omni
change
microphone means
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
CA002479675A
Other languages
French (fr)
Other versions
CA2479675C (en
Inventor
Lars Baekgaard Jensen
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.)
Widex AS
Original Assignee
Widex A/S
Lars Baekgaard Jensen
Topholm & Westermann Aps
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 Widex A/S, Lars Baekgaard Jensen, Topholm & Westermann Aps filed Critical Widex A/S
Publication of CA2479675A1 publication Critical patent/CA2479675A1/en
Application granted granted Critical
Publication of CA2479675C publication Critical patent/CA2479675C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04R25/40—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
    • 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
    • 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

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)
  • Stereophonic System (AREA)
  • Circuits Of Receivers In General (AREA)
  • Networks Using Active Elements (AREA)

Abstract

Change-over of the sound receiving characteristic of a hearing aid having spaced apart first and second microphone means (Fmic, Bmic) between the omnidirectional characteristic and a directional characteristic is effected by controlled attenuation and time or phase delay of signals derived from the signals (X front, X back) from the first and second microphone means before forming and overall combined signal (y) to be supplied to the hearing aid signal processor, whereby the overall combined signal (Y) is determined by Y = X front * (1 - omni * e-j.omega.T) + X back * (omni - e -j.omega.T) , where omni is an adjustable attenuation control parameter preferably in the range 0 <= omni <= 1 and T is a time delay corresponding to the acoustical delay between the first and second microphone means. In result, the change between the omnidirectional characteristic and any desired form of the directional characteristic is effected as a smooth change-over substantially without affecting phase relationship. Time delay and amplitude characteristic of the hearing aid.
CA002479675A 1999-06-24 2000-06-23 Directional controller for a hearing aid Expired - Fee Related CA2479675C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EPPCT/EP99/04375 1999-06-24
PCT/EP1999/004375 WO2001001732A1 (en) 1999-06-24 1999-06-24 Hearing aid with controllable directional characteristics
CA002385812A CA2385812C (en) 1999-06-24 2000-06-23 A method for controlling the directionality of the sound receiving characteristic of a hearing aid and a hearing aid for carrying out the method

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002385812A Division CA2385812C (en) 1999-06-24 2000-06-23 A method for controlling the directionality of the sound receiving characteristic of a hearing aid and a hearing aid for carrying out the method

Publications (2)

Publication Number Publication Date
CA2479675A1 true CA2479675A1 (en) 2001-01-04
CA2479675C CA2479675C (en) 2006-06-06

Family

ID=8167345

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002385812A Expired - Fee Related CA2385812C (en) 1999-06-24 2000-06-23 A method for controlling the directionality of the sound receiving characteristic of a hearing aid and a hearing aid for carrying out the method
CA002479675A Expired - Fee Related CA2479675C (en) 1999-06-24 2000-06-23 Directional controller for a hearing aid

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002385812A Expired - Fee Related CA2385812C (en) 1999-06-24 2000-06-23 A method for controlling the directionality of the sound receiving characteristic of a hearing aid and a hearing aid for carrying out the method

Country Status (7)

Country Link
JP (1) JP3914768B2 (en)
AT (1) ATE248496T1 (en)
AU (2) AU4776999A (en)
CA (2) CA2385812C (en)
DE (1) DE60004863T2 (en)
DK (1) DK1203508T3 (en)
WO (2) WO2001001732A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3955265B2 (en) 2001-04-18 2007-08-08 ヴェーデクス・アクティーセルスカプ Directional controller and method for controlling a hearing aid
EP1307072B1 (en) * 2001-10-17 2007-12-12 Siemens Audiologische Technik GmbH Method for operating a hearing aid and hearing aid
DE10310579B4 (en) * 2003-03-11 2005-06-16 Siemens Audiologische Technik Gmbh Automatic microphone adjustment for a directional microphone system with at least three microphones
DE10327890A1 (en) * 2003-06-20 2005-01-20 Siemens Audiologische Technik Gmbh Method for operating a hearing aid and hearing aid with a microphone system, in which different directional characteristics are adjustable
DE10331956C5 (en) 2003-07-16 2010-11-18 Siemens Audiologische Technik Gmbh Hearing aid and method for operating a hearing aid with a microphone system, in which different Richtcharaktistiken are adjustable
DK1665881T3 (en) * 2003-09-19 2008-09-15 Widex As Method for controlling the directional determination of the sound reception characteristic of a hearing aid and a signal processing apparatus for a hearing aid with controllable directional characteristics
KR20040028889A (en) * 2004-02-24 2004-04-03 장순석 One Side ITE(In-The-Ear) Hearing Aid with Opposite Side Directivity Increment
EP1513371B1 (en) 2004-10-19 2012-08-15 Phonak Ag Method for operating a hearing device as well as a hearing device
DE102004052912A1 (en) 2004-11-02 2006-05-11 Siemens Audiologische Technik Gmbh Method for reducing interference power in a directional microphone and corresponding acoustic system
EP1949755B1 (en) 2005-10-11 2010-05-12 Widex A/S Hearing aid and a method of processing input signals in a hearing aid
CA2626072C (en) 2005-10-18 2015-06-23 Widex A/S Equipment for programming a hearing aid and a hearing aid
CN101953176A (en) * 2008-02-20 2011-01-19 皇家飞利浦电子股份有限公司 Audio frequency apparatus and method of operation thereof
WO2010089976A1 (en) 2009-02-09 2010-08-12 パナソニック株式会社 Hearing aid
DE102010011730A1 (en) 2010-03-17 2011-11-17 Siemens Medical Instruments Pte. Ltd. Hearing apparatus and method for generating an omnidirectional directional characteristic
DK3148218T3 (en) * 2015-09-18 2020-02-24 Sonion Nederland Bv ACOUSTIC MODULE WITH ACOUSTIC FILTER
US9668065B2 (en) 2015-09-18 2017-05-30 Sonion Nederland B.V. Acoustical module with acoustical filter
DK179577B1 (en) 2016-10-10 2019-02-20 Widex A/S Binaural hearing aid system and a method of operating a binaural hearing aid system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK159357C (en) * 1988-03-18 1991-03-04 Oticon As HEARING EQUIPMENT, NECESSARY FOR EQUIPMENT
US5128566A (en) * 1989-11-03 1992-07-07 Etymotic Research, Inc. Variable attenuator circuit
AT407815B (en) * 1990-07-13 2001-06-25 Viennatone Gmbh HEARING AID
CH681188A5 (en) * 1990-10-30 1993-01-29 Ascom Audiosys Ag
US5524056A (en) * 1993-04-13 1996-06-04 Etymotic Research, Inc. Hearing aid having plural microphones and a microphone switching system
US5757933A (en) * 1996-12-11 1998-05-26 Micro Ear Technology, Inc. In-the-ear hearing aid with directional microphone system

Also Published As

Publication number Publication date
ATE248496T1 (en) 2003-09-15
AU5391600A (en) 2001-01-31
AU766876B2 (en) 2003-10-23
WO2001001732A1 (en) 2001-01-04
AU4776999A (en) 2001-01-31
CA2385812A1 (en) 2001-01-04
CA2385812C (en) 2005-06-07
DE60004863D1 (en) 2003-10-02
WO2001001731A1 (en) 2001-01-04
JP3914768B2 (en) 2007-05-16
DK1203508T3 (en) 2003-09-22
JP2003503924A (en) 2003-01-28
CA2479675C (en) 2006-06-06
DE60004863T2 (en) 2004-05-06

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20170623