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
Two speech processing schemes for the University of Melbourne multi-channel cochlear implant prosthesis

Tong, Yit C. ; Chang, J. S. ; Harrison, J. M. ; Hugien, J. ; Clark, Graeme M. ( 1989)

A series of speech perceptual studies was conducted on normally hearing subjects using synthesized acoustic signals based on two speech processing schemes: zero-crossing and filter bank. The filter bank scheme was shown to provide more speech information than the zero-crossing scheme. These schemes were implanted in a laboratory-based speech processor, which is described. A low-power switched capacitor speech spectrum analyzer embodying several novel design methodologies is also described. This spectrum analyzer can be used to implement the filter bank scheme in a wearable speech processor.