Prosodic Aids to Speech Recognition
Semiannual technical rept. 1 Mar-31 Aug 1972
SPERRY RAND CORP ST PAUL MN UNIVAC DEFENSE SYSTEMS DIV
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A strategy is outlined for acoustic aspects of speech recognition, whereby prosodic features are used to detect boundaries between phrases, then stressed syllables are located within each constituent, and a partial distinctive features analysis is done within stressed syllables. Facilities were implemented for linear prediction, formant tracking, and extraction of fundamental frequency and speech energy contours. A program was implemented which detects 90 of all boundaries between major syntactic constituents from fall-rise valleys in fundamental frequency contours.
- Voice Communications