WO2000015001A3 - Hearing aid device incorporating signal processing techniques - Google Patents

Hearing aid device incorporating signal processing techniques Download PDF

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Publication number
WO2000015001A3
WO2000015001A3 PCT/US1999/020841 US9920841W WO0015001A3 WO 2000015001 A3 WO2000015001 A3 WO 2000015001A3 US 9920841 W US9920841 W US 9920841W WO 0015001 A3 WO0015001 A3 WO 0015001A3
Authority
WO
WIPO (PCT)
Prior art keywords
input
noise
signal processing
hearing aid
processing techniques
Prior art date
Application number
PCT/US1999/020841
Other languages
French (fr)
Other versions
WO2000015001A2 (en
Inventor
Douglas M Chabries
William C Borough
Richard W Christiansen
Thomas G Stockham Jr
Original Assignee
Sonic Innovations Inc
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 Sonic Innovations Inc filed Critical Sonic Innovations Inc
Publication of WO2000015001A2 publication Critical patent/WO2000015001A2/en
Publication of WO2000015001A3 publication Critical patent/WO2000015001A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/005—Combinations of two or more types of control, e.g. gain control and tone control of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
    • 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)

Abstract

A hearing compensation system for the hearing impaired comprises a plurality of bandpass filters having an input connected to an input transducer and each bandpass filter having an output connected to the input of one of a plurality of multiplicative AGC circuits whose outputs are summed together and connected to the input of an output transducer. The multiplicative AGC circuits attenuate acoustic signals having a constant background level without the loss of speech intelligibility. The identification of the background noise portion of the acoustic signal is made by the constancy of the envelope of the input signal in each of the several frequency bands. The background noise that will be suppressed includes multi-talker speech babble, fan noise, feedback whistle, fluorescent light hum, and white noise.
PCT/US1999/020841 1998-09-09 1999-09-09 Hearing aid device incorporating signal processing techniques WO2000015001A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16954798A 1998-09-09 1998-09-09
US09/169,547 1998-09-09

Publications (2)

Publication Number Publication Date
WO2000015001A2 WO2000015001A2 (en) 2000-03-16
WO2000015001A3 true WO2000015001A3 (en) 2000-06-08

Family

ID=22616156

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/020841 WO2000015001A2 (en) 1998-09-09 1999-09-09 Hearing aid device incorporating signal processing techniques

Country Status (1)

Country Link
WO (1) WO2000015001A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6885752B1 (en) * 1994-07-08 2005-04-26 Brigham Young University Hearing aid device incorporating signal processing techniques
US8737654B2 (en) 2010-04-12 2014-05-27 Starkey Laboratories, Inc. Methods and apparatus for improved noise reduction for hearing assistance devices
US9331649B2 (en) 2012-01-27 2016-05-03 Cochlear Limited Feature-based level control
FR3128795B1 (en) * 2021-11-01 2023-12-22 Sarl Xplorer Audio reproduction of an electromagnetic metal detection signal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5500902A (en) * 1994-07-08 1996-03-19 Stockham, Jr.; Thomas G. Hearing aid device incorporating signal processing techniques
WO1998028943A1 (en) * 1996-12-20 1998-07-02 Sonix Technologies, Inc. A digital hearing aid using differential signal representations

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5500902A (en) * 1994-07-08 1996-03-19 Stockham, Jr.; Thomas G. Hearing aid device incorporating signal processing techniques
WO1998028943A1 (en) * 1996-12-20 1998-07-02 Sonix Technologies, Inc. A digital hearing aid using differential signal representations

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHABRIES D M ET AL: "APPLICATION OF A HUMAN AUDITORY MODEL TO LOUDNESS PERCEPTION AND HEARING COMPENSATION", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (ICASSP),US,NEW YORK, IEEE, vol. CONF. 20, 1995, pages 3527 - 3530, XP000534796, ISBN: 0-7803-2432-3 *
STOCKHAM T G: "THE APPLICATION OF GENERALIZED LINEARITY TO AUTOMATIC GAIN CONTROL", IEEE TRANSACTIONS ON AUDIO AND ELECTROACOUSTICS,US,IEEE INC. NEW YORK, vol. 16, no. 2, 1 June 1968 (1968-06-01), pages 267 - 270, XP000543481 *

Also Published As

Publication number Publication date
WO2000015001A2 (en) 2000-03-16

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