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American Journal of Audiology Vol.4 49-54 November 1995.
© American Speech-Language-Hearing Association
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Comparison of the Multipeak and Spectral Peak Speech Coding Strategies of the NucleusTM 22-Channel Cochlear Implant System

Laura K. Holden 1, Margaret W. Skinner 1, Timothy A. Holden 1, and Susan M. Binzer 1

1 Washington University School of Medicine, St. Louis, MO

Eight subjects participated in a comparison of the multipeak (MPEAK) and spectral peak (SPEAK) speech coding strategies of the NucleusTM 22-channel cochlear implant system as part of a long-term monitoring study. Sound-field threshold levels and speech recognition performance on the Bamford-Kowal-Bench Sentence Test, NU-6 Monosyllabic Word Test, and Connected Speech Test or CID Everyday Sentence Test were analyzed for the two speech coding strategies. For the group, speech recognition performance was significantly higher with the SPEAK speech coding strategy than with the MPEAK strategy on all speech tests. For individual subjects, scores with the SPEAK strategy were significantly higher for some subjects on each of the speech tests. None of the subjects scored significantly higher on any of the tests with MPEAK.

Key Words: cochlear implant, Spectra 22, multipeak, Speak, Nucleus

Submitted on May 1, 1994
Accepted on August 11, 1994


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