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Semin Hear 2000; Volume 21(Number 2): 0137-0156
DOI: 10.1055/s-2000-7312
Copyright © 2000 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA. Tel.: +1(212) 584-4662

BEYOND AMPLIFICATION: SIGNAL PROCESSING TECHNIQUES FOR IMPROVING SPEECH INTELLIGIBILITY IN NOISE WITH HEARING AIDS

Brent W. Edwards
  • ReSound Corporation, Palo Alto, California.
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Publication History

Publication Date:
31 December 2000 (online)

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ABSTRACT

The ability to improve speech understanding for the hearing aid wearer is one of the most important functions that a hearing aid can provide. Technology has advanced such that the application of gain to increase audibility is not the only approach that can be taken to achieve this task. This paper will discuss other techniques that are being used by modern hearing aids to help in this area: directionality, noise reduction, feedback cancellation, and hearing loss compensation. The technical background of each of these areas will be detailed, including a review of relevant research that relates to the hearing-impaired, and speculation on future developments will be presented.

KEYWORD

Hearing aids - intelligibility - directionality - noise reduction