Efficient Method for Large Vocabulary, Discrete Utterance Recognition
Original Publication Date: 1983-Apr-01
Included in the Prior Art Database: 2005-Feb-07
This invention relates to an efficient method for speech recognition by successive comparisons between a voice sample of sectional average spectrum and a hierarchically stored library. A two-stage recognition process is used. In the first stage, an incoming utterance is matched against an entire vocabulary in order to identify a predetermined number of best match words. The following paragraphs are directed to the first stage processing of the method and the significance of utterance duration and sectional frequency spectrum.