A new portable sound processor for the University of Melbourne/Nucleus Limited multielectrode cochlear implant

H. J. McDermott, C. M. McKay, A. E. Vandali

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A new processor, called the spectral maxima sound processor (SMSP), has been developed for the University of Melbourne/Nucleus Limited multielectrode cochlear implant. The SMSP analyses sound signals by means of a bandpass filterbank having 16 channels which are allocated tonotopically to the implanted electrodes. Every 4 ms, typically, the six channels with the largest amplitudes are selected, and six corresponding electrodes are activated. In an ongoing study the performance of the SMSP is being compared with that of the Mini Speech Processor (MSP). Some results of speech perception tests from the first two SMSP users are presented, in which scores for the recognition of vowels, consonants, and words all showed significant increases over the corresponding MSP scores.
    Original languageEnglish
    Pages (from-to)3367-3371
    Number of pages4
    JournalJournal of the Acoustical Society of America
    Volume91
    Issue number6
    Publication statusPublished - 1992

    Keywords

    • Cochlear Implants
    • rehabilitation: Deafness
    • Electrodes, Implanted
    • Humans
    • Loudness Perception
    • Microcomputers
    • Phonetics
    • Pitch Perception
    • Prosthesis Design
    • Speech Perception

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