SIGNAL PROCESSING TECHNIQUES F

ABSTRACT
The recent development of commercial hearing aids with
digital signal processing (DSP) capabilities opens the door
for an explosive growth in hearing aid sophistication. Current
limitations on signal processing design due to hearing aid
constraints, and the specialized needs of listeners with
hearing loss, result in certain design specifications that any
DSP hearing aid must meet. This paper will review the latest
state-of-the-art with respect to current DSP hearing aids
on the market, with an emphasis on the ReSound
programmable DSP hearing aid, developed in a collaboration
with GN Danavox and AudioLogic, Inc. Multiband
compression, single-microphone processing, multi-
microphone processing, and feedback reduction will be
discussed.