DESIGN AND EVALUATION OF A CONTINUOUS INTERLEAVED SAMPLING (CIS) PROCESSING STRATEGY FOR MULTICHANNEL COCHLEAR IMPLANTS

Two approaches for representing speech information with multichannel c ochlear prostheses are being compared in tests with implant patients. Included in these studies are the compressed analog (CA) approach of a standard clinical device and research processors utilizing continuous interleaved sampling (CIS). Initial studies have been completed with nine subjects, seven of whom were selected on the basis of excellent p erformance with the Ineraid clinical processor, and the remaining two for their relatively poor performance with the same device. The tests include open-set recognition of words and sentences. Every subject has obtained a higher score-or repeated a score of 100% correct-on every test when using a CIS processor. These results are discussed in terms of their implications for processor design.