The Sound of Cochlear Implants

[n.mueller_bEi_hit.handshake.de (Norbert Mueller)]

## Nachricht vom 10.09.98 weitergeleitet
## Ursprung : n.mueller_bEi_hit-n.mueller.zer
## Ersteller: lras_bEi_loc.gov

The September, 1998 issue of the IEEE Signal Processing Magazine had a 
tutorial article on the design and performance of cochlear implants, 
which attempt to provide audio information to profoundly deaf people 
by stimulating the nerves in the inner ear.  These devices don't all 
use the same signal processing strategies, and researchers are always 
trying to improve them.  

The University of Arkansas at Little Rock has been acoustically 
simulating the sound of these implants.  To hear a series of 
demonstrations with different numbers of channels and different depths 
of insertion into the cochlea (which results in different amounts of 
frequency shift) you can listen to WAV files from
  http://giles.sgilab.ualr.edu/asd/cimplants/chome.htm

It uses frames, but works quite well with Lynx.  The sampling rates 
are a little odd, but the files should be playable.

-- Lloyd Rasmussen
Senior Staff Engineer, Engineering Section
National Library Service for the  Blind and Physically Handicapped
Library of Congress          202-707-0535
(work)       lras_bEi_loc.gov    http://www.loc.gov/nls/
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