Accession Number : AD0802997

Title :   VOICE SOUND RECOGNITION.

Descriptive Note : Final rept. Apr 65-Apr 66,

Corporate Author : PHILCO CORP BLUE BELL PA

Personal Author(s) : Focht, Louis R. ; Piotrowski, Casimir F.

Report Date : OCT 1966

Pagination or Media Count : 167

Abstract : The goal is to determine the feasibility of recognizing a large vocabulary (250 words) by using the Single Equivalent Formant parameters. Five speakers (three male and two female) uttered thirteen of these 250 words. The thirteen words chosen were difficult words for recognition since they contained a maximum of phonetic similarity such as from, some, he, she, be, me, etc. The over-all recognition rate was 95.4%, error rate 1.5% and non-recognition rate 3.1%. Word recognition was based on phoneme category code sequence of the words. The results show that the Single Equivalent Formant and the recognition of phoneme categories is a practical parameter upon which to base a 250 word vocabulary recognizer.

Descriptors :   (*SPEECH RECOGNITION, AUTOMATIC), VOCABULARY, SYNTAX, SPEECH, SOUND TRANSMISSION, SPEECH REPRESENTATION, SOUND PITCH, AUDITORY SIGNALS, STATISTICAL DATA, DECISION THEORY, COMPUTER LOGIC.

Subject Categories : Cybernetics
      Voice Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE