Introduction - If you have any usage issues, please Google them yourself
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.