Accession Number : AD0757492
Title : Automatic Recognition of Spoken English Words.
Descriptive Note : Technical rept.,
Corporate Author : TEXAS UNIV AUSTIN ELECTRONICS RESEARCH CENTER
Personal Author(s) : Hunt,Gary Lynn ; Coates,C. L.
Report Date : 28 JUL 1972
Pagination or Media Count : 77
Abstract : The object of the research was the development and testing of techniques for use in the recognition of spoken words. A trainable pattern classifier to recognize a limited vocabulary of spoken words was implemented using these techniques. The words used were spoken into a microphone located on the operator console in the Hybrid Computing Facility. Speech samples were processed by a 31-channel bandpass filterbank before digitization. Training was accomplished by first segmenting each spoken word into three time sections and then performing clustering operations on these segments to derive a set of prototype segments, along with estimated a priori probabilities of occurrence for these prototypes. The system was trained first on a single speaker and later on a group of five speakers, using the digits/zero/through/nine/as a test vocabulary. Recognition rates were generally from 94 to 98% on new data by the speakers for which the system was trained. (Author Modified Abstract)
Descriptors : (*SPEECH, *PATTERN RECOGNITION), (*ENGLISH LANGUAGE, PATTERN RECOGNITION), DATA PROCESSING, TRAINING
Subject Categories : Non-radio Communications
Distribution Statement : APPROVED FOR PUBLIC RELEASE