DocumentCode
1854618
Title
On the improvement of acoustic feedback cancellation in hearing-aid
Author
Chankawee, A. ; Tangsangiumvisai, N.
Author_Institution
Dept. of Electr. Eng., Chulalongkorn Univ., Bangkok, Thailand
Volume
2
fYear
2004
fDate
25-28 July 2004
Abstract
This paper presents a decorrelation technique to improve the performance of acoustic feedback cancellation in hearing aids, particularly for the continuous adaptation approach. It is proposed that the input and the output signals of the hearing aids are decorrelated via the use of higher-order time-varying allpass filters in order to adequately decorrelate the signals with as little degradation of the quality of the output signal of the hearing aids as possible. Simulation results are presented based on real speech signals and supported by subjective listening tests.
Keywords
acoustic signal processing; all-pass filters; decorrelation; feedback; hearing aids; noise abatement; acoustic feedback cancellation; continuous adaptation; hearing-aid; listening tests; signal decorrelation; speech signals; time-varying allpass filters; Acoustic devices; Acoustic signal detection; Adaptive filters; Auditory system; Decorrelation; Degradation; Delay; Detectors; Feedback; Hearing aids;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 2004. MWSCAS '04. The 2004 47th Midwest Symposium on
Print_ISBN
0-7803-8346-X
Type
conf
DOI
10.1109/MWSCAS.2004.1354080
Filename
1354080
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