Graeme Clark Collection

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Author: Busby, Peter × Author: Clark, Graeme × End date: 1981 × Start date: 1980 × Subject: speech processing ×

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    Speech processing for a multiple-channel cochlear implant
    Tong, Y. C. ; Millar, J. B. ; Clark, Graeme M. ; Martin, L. F. ; Busby, P. A. ( 1980)
    A laboratory speech processor has been developed for a multiple-channel cochlear implant prosthesis. The speech processor accepts the speech waveform as an input and produces a pattern of electrical stimulus data as output. The electrical stimulus data are transmitted to the implanted receiver-stimulator by a transmitter which is external to the speech processor. Four speech signal parameters were estimated every 20 ms in the parameter estimation section of the speech processor. These parameters included the fundamental frequency (FO), a low frequency energy measure (AO) , the second formant frequency (F2) and its amplitude (A2).
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    Speech processing for a totally deaf patient with a multiple-electrode cochlear implant [Abstract]
    Clark, Graeme M. ; Tong, Y. C. ; Millar, J. B. ; Martin, L. F. ; Busby, P. A. ( 1980)
    A patient with a total hearing loss had a multiple-electrode cochlear implant performed on 1 August 1978 (Clark et. Al. 1979). Preliminary findings (Tong et al 1979) have shown that low and high pitch are discriminated on a place basis. Stimulating different electrodes produced the vowel colours.......