SPEECH PROCESSING WITH A COCHLEAR-NEURAL ANALOG.
Final rept., 1 Apr 64-31 Mar 66,
SANTA RITA TECHNOLOGY INC MENLO PARK CALIF
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The investigation concerns activities pursued in improving our understanding of the nature of the ears transformation of acoustic information to neural form. The current configuration of the analog ear developed by Santa Rita Technology is presented and design parameters are covered in detail. A model is proposed of a neural analyzer which extracts information from sound envelope fluctuations. These functional processes are thought to be similar to those employed by certain insects. By combining neural analysis with cochlear mechanisms, it has become possible to define a speech data pre-processing scheme which presents low-rate data in an almost phonetically-structured form to more central regions of the nervous system. Behavior of a physical neural analysis simulator is described and the nature of a complete phonetic-like speech display is estimated. Author