DocumentCode
2811279
Title
Some notes on feedback suppression with adaptive filters in hearing aids
Author
Knecht, Wolfgang G.
Author_Institution
Phonak AG, Staefa, Switzerland
fYear
1997
fDate
19-22, Oct 1997
Abstract
This paper discusses some important issues concerning feedback cancellation in hearing aids using adaptive filters. We summarize the main benefits of an anti-feedback system and comment on the pros and cons of a frequency-domain implementation. The length of the adaptive filter is dealt with and important delay elements in the algorithm are described. Finally, we comment on the problem of adaptation in the presence of uncorrelated additive noise which, in this case, is the desired input signal to the hearing aid
Keywords
acoustic noise; acoustic signal processing; adaptive filters; adaptive signal processing; delays; feedback; frequency-domain synthesis; handicapped aids; hearing aids; noise abatement; adaptive filters; algorithm; anti-feedback system; delay elements; desired input signal; feedback cancellation; feedback suppression; filter length; frequency-domain implementation; hearing aids; uncorrelated additive noise; Adaptive filters; Auditory system; Delay; Ear; Feedback; Hearing aids; Instruments; Signal processing; Signal processing algorithms; Vents;
fLanguage
English
Publisher
ieee
Conference_Titel
Applications of Signal Processing to Audio and Acoustics, 1997. 1997 IEEE ASSP Workshop on
Conference_Location
New Paltz, NY
Print_ISBN
0-7803-3908-8
Type
conf
DOI
10.1109/ASPAA.1997.625583
Filename
625583
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