Graeme Clark Collection

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    Speech perception, production and language results in a group of children using the 22-electrode cochlear implant
    Busby, P. A. ; Brown, A. M. ; DOWELL, RICHARD ; Rickards, Field W. ; Dawson, Pam W. ; Blamey, Peter J. ; Rowland, L.C. ; Dettman, Shani J. ; Altidis, P. M. ; Clark, Graeme M. ( 1989)
    Paper presented at the 118th Meeting of the Acoustical Society of America
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    Combining tactile, auditory and visual information for speech perception
    Blamey, P. J. ; Clark, Graeme M. ( 1988)
    Four normally hearing subjects were trained and tested with all combinations of a highly degraded auditory input, a visual input via lipreading, and a tactile input using a multichannel electrotactile speech processor. When the visual input was added to any combination of other inputs, a significant improvement occurred for every test. Similarly, the auditory input produced a significant improvement for all tests except closed-set vowel recognition. The tactile input produced scores that were significantly greater than chance in isolation, but combined less effectively with the other modalities. The less effective combination might be due to lack of training with the tactile input, or to more fundamental limitations in the processing of multimodal stimuli.
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    Speech processing for electrical stimulation of the auditory nerve
    Miller, J. B. ; Tong, Y. C. ; Blamey, P. J. ; Clark, Graeme M. ; Dowell, R. C. ; Seligman, P. M. ( 1986)
    The development of cochlear prostheses which provide hearing .sensation to those previously totally deaf by means of electro-neural stimulation has brought new hope for normal communication to a portion of the deaf community that had previously been beyond help by conventional hearing aids. A cochlear prosthesis provide hearing sensation by exciting nerve fibres in the auditory nerve using small electrical current passed through one or more electrode placed in or around the cochlea. Once this artificial link in the auditory information pathway has been established there still remain considerable challenge in the selection of appropriate coding of information to be transmitted along it. In this paper we consider the design of signal processing necessary for an effective speech perception, prosthesis via the electrical stimulation of the auditory nerve.