Comparison of the Multipeak and Spectral Peak Speech Coding Strategies of the NucleusTM 22-Channel Cochlear Implant System 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 ... Research Article
Research Article  |   November 01, 1995
Comparison of the Multipeak and Spectral Peak Speech Coding Strategies of the NucleusTM 22-Channel Cochlear Implant System
 
Author Affiliations & Notes
  • Laura K. Holden
    Washington University School of Medicine, Department of Otolaryngology, 517 South Euclid Avenue, Box 8115, St. Louis, MO 63110
  • Margaret W. Skinner
    Washington University School of Medicine, Department of Otolaryngology, 517 South Euclid Avenue, Box 8115, St. Louis, MO 63110
  • Timothy A. Holden
    Washington University School of Medicine, Department of Otolaryngology, 517 South Euclid Avenue, Box 8115, St. Louis, MO 63110
  • Susan M. Binzer
    Washington University School of Medicine, Department of Otolaryngology, 517 South Euclid Avenue, Box 8115, St. Louis, MO 63110
Article Information
Hearing Disorders / Hearing Aids, Cochlear Implants & Assistive Technology / Research Articles
Research Article   |   November 01, 1995
Comparison of the Multipeak and Spectral Peak Speech Coding Strategies of the NucleusTM 22-Channel Cochlear Implant System
American Journal of Audiology, November 1995, Vol. 4, 49-54. doi:10.1044/1059-0889.0403.49
History: Received May 1, 1994 , Accepted August 11, 1994
 
American Journal of Audiology, November 1995, Vol. 4, 49-54. doi:10.1044/1059-0889.0403.49
History: Received May 1, 1994; Accepted August 11, 1994

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.

Acknowledgments
Appreciation is expressed to the eight subjects who have contributed so much to this research and also to Marilyn Demorest for help with the statistical analysis of the data. This research was supported by grant RO1-DC00581 from the National Institute on Deafness and Other Communication Disorders.
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