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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 5 of 5 1 Speech perception as a function of electrical stimulation rate: using the nucleus 24 cochlear implant system Vandali, Andrew E.; Plant, Kerrie L.; Clark, Graeme M.. - 2000 BASE Show details 2 The spectral maxima sound processor: recent findings in speech perception and psychophysics Clark, Graeme M.; McDermott, Hugh J.; McKay, Colette M.; Vandali, Andrew E.. - : Wien, 1994 Abstract: Copyright permission has been sought but has not been received, therefore this material will remain restricted. ; The Spectral Maxima Sound Processor (SMSP) was developed at the University of Melbourne for use with the Mini System 22 implant manufactured by Cochlear Pty Ltd. The SMSP has been shown in recent studies to provide improved speech perception to implantees when compared to the currently commercially available processor for this implant (the MSP (MULTIPEAK) processor). In the first of three experiments, the effect on speech perception of increasing the rate of stimulation of the SMSP and of increasing the number of electrodes activated in each stimulation cycle was studied. It was found that these parameter changes made little difference to speech perception in quiet but both changes were advantageous for some subjects when listening in noise. The second and third experiments investigated psychophysically the effects of two aspects of the SMSP strategy which differ from previous processors for this implant. In the second experiment, it was found that concurrent stimulation of two adjacent or nearby electrodes evoked a pitch which was intermediate to that of either electrode. This may explain, in part, the better discrimination of vowel formants by users of the SMSP. In the third experiment, it was found that a pitch related to the modulation frequency was evoked by amplitude-modulating a constant rate stimulus, provided that the rate of stimulation was sufficiently high (four times the modulation frequency) or a multiple of the modulation frequency. This result may explain the equal ability of SMSP and MSP users to perceive speaker differences and intonation patterns, even though the rate of stimulation is constant In the SMSP. Keyword: cochlear implant; modulation frequency; pitch; SMSP; Spectral Maxima Sound Processor; speech perception; University of Melbourne; vowel formants URL: http://hdl.handle.net/11343/27400 BASE Hide details 3 Speech processing for multichannel cochlear implants: variations of the Spectral Maxima Sound Processor strategy Clark, Graeme M.; McKay, Colette M.; McDermott, Hugh J.. - 1994 BASE Show details 4 Speech processing for cochlear implants: variations of the spectral maxima sound processor Vandali, Andrew E.; McKay, Colette M.; McDermott, Hugh J.. - 1993 BASE Show details 5 A comparison of speech perception of cochlear implantees using the Spectral Maxima Sound Processor (SMSP) and the MSP (Multipeak) processor Vandali, Andrew E.; McDermott, Hugh J.; McKay, Colette M.. - 1992 BASE Show details

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