Speech recognition method and apparatus using coarse and fine ou

Details Speech recognition method and apparatus using coarse and fine ou Speech recognition method and apparatus using coarse and fine ou

1997-09-16

2000-08-22

Dorvil, Richemond

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

704238, G01L 1514

Patent

active

061086282

ABSTRACT:
A high-speed speech recognition method with a high recognition rate, utilizing speaker models, includes the steps of executing an acoustic process on the input speech, calculating a coarse output probability utilizing an unspecified speaker model, and calculating a fine output probability utilizing an unspecified speaker model and clustered speaker models, for the states estimated, by the result of coarse calculation, to contribute to the results of recognition. Candidates of recognition are then extracted by a common language search based on the obtained result, and a fine language search is conducted on the thus extracted candidates to determine the result of recognition.

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