| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a voice recognition device dispensing with prior investigation for creation of a word dictionary. Ž<P>SOLUTION: This voice recognition device 10 is equipped with an utterance section detection part 11 for detecting an utterance section including a voice signal from an acoustic signal; a characteristic quantity extraction part 12 for extracting an acoustic characteristic quantity from the voice signal by analyzing the voice signal in the utterance section detected by the utterance section detection part 11; a word dictionary 13 wherein a plurality of kinds of words are sorted by the mora number and registered; an acoustic model 14 wherein the acoustic characteristic quantity of each word registered in the word dictionary 13 is registered; and a collation part 15 for calculating likelihood of each word by collating the acoustic characteristic quantity extracted by the characteristic quantity extraction part 12 with the acoustic characteristic quantity of each word registered in the word dictionary 13 on reference to the word dictionary 13 and the acoustic model 14, and using a word having the highest likelihood as a recognition result. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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