Graeme Clark Collection

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Author: Clark, Graeme × End date: 1989 × Start date: 1983 × Type: Journal Article × Subject: cochlear implant × Subject: speech processing ×

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    Temporal coding of speech information for cochlear implant patients
    Millar, J. B. ; Martin, L. F. A. ; Tong, Y. C. ; Clark, Graeme M. ( 1987)
    A modified speech-processing strategy incorporating the temporal coding of information strongly correlated with the first formant of speech was evaluated in a long-term clinical experiment with a single patient. The aim was to assess whether the patient could learn to extract information from the time domain in addition to the time domain cues for voice excitation frequency already received from the initial strategy. It was found that the patient gained no significant advantage from the modified strategy, but there was no disadvantage either, and the patient expressed a preference for the modified strategy for everyday use.
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    Evaluation of a two-formant speech-processing strategy for a multichannel cochlear prosthesis
    Dowell, R. C. ; Seligman, P. M. ; Blamey, P. J. ; Clark, Graeme M. ( 1987)
    Initial results with the two-formant speech-processing strategy (F0FIF2) confirm the advantage of a multichannel cochlear prosthesis capable of stimulating at different sites within the cochlea. The successful presentation of two spectral components by varying the place of stimulation leads to the possibility of presenting further spectral information in this manner. Because virtually all multichannel implant patients demonstrate good "place" (electrode site) discrimination, these more refined coding strategies should lead to benefits for the majority of implantees. Already, with the F0FIF2 strategy, we have a system that appears to provide some effective auditory-alone communication ability for the average patient.
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    Speech processing for cochlear implant prostheses
    Millar, J. B. ; Tong, Y. C. ; Clark, Graeme M. ( 1984)
    The transformation of speech into electrical signals which can stimulate the auditory nerve in order to create hearing sensations that carry speech information depends on many factors. These include the limitations imposed by the current state-of-the-art in otological surgery, microelectronic and micromechanical technology, and knowledge of the functioning of the auditory system under both acoustic and electrical stimulation. Sufficient advances have been made in all these areas to enable several research centers to develop cochlear prostheses which give some hearing to certain totally deaf persons. The work of these centers towards the goal of full unaided speech perception via the prosthesis is examined and evaluated.
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    The preliminary clinical trial of a multichannel cochlear implant hearing prosthesis
    Clark, Graeme M. ; Crosby, P. A. ; Dowell, R. C. ; Kuzma, J. A. ; Money, D. K. ; Patrick, J. F. ; Seligman, P. M. ; Tong, Y. C. ( 1983)
    Abstract not available due to copyright.