Speech recognition system

Details Speech recognition system Speech recognition system

G - Physics

10

L

354/1, 354/47

G10L 15/08 (2006.01) G10L 15/14 (2006.01) G10L 15/18 (2006.01)

Patent

CA 1257697

SPEECH RECOGNITION SYSTEM ABSTRACT Apparatus and method for evaluating the likelihood of a word in a vocabulary of words wherein a total score is evaluated for each word, each total score being the re- sult of combining at least two word scores generated by differing algorithms. In one embodiment, a detailed acoustic match word score is combined with an approxi- mate acoustic match word score to provide a total word score for a subject word. In another embodiment, a polling word score is combined with an acoustic match word score to provide a total word score for a subject word. The acoustic models employed in the acoustic matching may correspond, alternatively, to phonetic el- ements or to fenemes. Fenemes represent labels generated by an acoustic processor in response to a spoken input. Apparatus and method for determining word scores ac- cording to approximate acoustic matching and for deter- mining word scores according to a polling methodology are disclosed.

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