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

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5 Author(s)
Tong, Y.C. ; Dept. of Otolaryngology, Melbourne Univ., Parkville, Vic., Australia ; Chang, J.S. ; Harrison, J.M. ; Hugien, J.
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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

Published in:

Circuits and Systems, 1989., IEEE International Symposium on

Date of Conference:

8-11 May 1989