DocumentCode
1920650
Title
A flexible filterbank structure for extensive signal manipulations in digital hearing aids
Author
Brennan, Robert ; Schneider, Todd
Author_Institution
dspFactory, Waterloo, Ont., Canada
Volume
6
fYear
1998
fDate
31 May-3 Jun 1998
Firstpage
569
Abstract
Filterbanks for digital hearing aids must use significantly different criteria than those designed for coding applications. For digital hearing aids, the filterbank channel gains must be adjustable over a large dynamic range to compensate for the hearing loss. This adjustability violates the alias cancellation properties of critically sampled filterbanks designed for coding. This paper describes a filterbank designed exclusively for hearing aid applications. Consideration will be given to the extremely limited memory, low delay and low power requirements that must be met in a typical hearing aid application
Keywords
band-pass filters; digital filters; hearing aids; medical signal processing; channel gains; delay; digital hearing aids; dynamic range; filterbank structure; power requirements; signal manipulations; Auditory system; Deafness; Delay; Filter bank; Frequency; Hearing aids; Shape; Signal processing; Speech coding; Stacking;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location
Monterey, CA
Print_ISBN
0-7803-4455-3
Type
conf
DOI
10.1109/ISCAS.1998.705338
Filename
705338
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