Graeme Clark Collection

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Author: McKay, Colette × End date: 1994 × Start date: 1991 × Type: Journal Article × Subject: electrical stimulation ×

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    Pitch ranking with nonsimultaneous dual-electrode electrical stimulation of the cochlea
    McDermott, Hugh J. ; McKay, Colette M. ( 1994)
    Abstract not available due to copyright.
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    Pitch percepts associated with amplitude-modulated current pulse trains in cochlear implantees
    McKay, Colette M. ; McDermott, Hugh J. ; Clark, Graeme M. ( 1994)
    Abstract not available due to copyright.
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    A comparison of speech perception of cochlear implantees using the Spectral Maxima Sound Processor (SMSP) and the MSP (Multipeak) processor
    McKay, Colette M. ; McDermott, Hugh J. ; Vandali, Andrew E. ; Clark, Graeme M. ( 1992)
    The Spectral Maxima Sound Processor (SMSP) is a portable speech processor which has recently been developed at the University of Melbourne for use with multiple-electrode cochlear implants. In this processor, the six largest outputs (maxima) of 16 bandpass filters are used to stimulate the cochlea on a place basis at a constant rate. This speech processing strategy has been compared with the MSP(MULTIPEAK) strategy, in which four electrodes are selected for stimulation in every glottal pulse period. The study was undertaken on four postlinguistically deaf adults. The results show that, for this group of subjects, the performance of the SMSP processor was significantly better than that of the MSP(MUL TIPEAK) processor for the recognition of closed-set vowels and consonants, open-set monosyllabic words, and open-set sentences in noise, when using electrical stimulation alone. The SMSP mean scores were: vowels 91.3%, consonants 74.9%, words 57.4%, and sentences in noise 78.7%. The MSP(MULTIPEAK) mean scores were: vowels 76.3%, consonants 59.4%, words 39.9%, and sentences in noise 50.0%.