Cochlear implant speech processors seek to generate a neural response that mimics normal hearing. However, the cochlear phase response is generally discarded, together with other fine scale temporal aspects of sound. We sought to incorporate and compare a variety of cochlear traveling wave delays (i.e. group delays) in a clinical speech processing strategy. Traveling wave delays resulted in a significant improvement in the perception of speech in noise, a longstanding difficulty for cochlear implant patients.
Bibliographic reference. Taft, Daniel A. / Grayden, David B. / Burkitt, Anthony N. (2008): "Traveling wave based group delays for cochlear implant speech processing", In INTERSPEECH-2008, 2207.