Description: 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.
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testWOLA.m
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