| 摘要 |
PROBLEM TO BE SOLVED: To fully automatically perform adaptation to speaker's speech, without forcing a user selection. SOLUTION: A sound analysis section 11 extracts a sound feature amount of input speech. In a sound model data base 13 and language model data base 14, a statistical sound model and a language model for performing speech recognition based on the extracted sound feature amount are stored. A search processing section 12 performs search processing by applying a statistical model on the sound feature amount, and outputs a speech recognition result. A recognition result text which is output by the search processing is corrected by the user in a recognition result correction section 15. An adaptation utilization determining section 17 calculates a reliability score for the correction text, and determines a threshold for whether or not the correction text is utilized for speaker adaptation. A speaker adaptation section 18 performs speaker adaptation, when it is determined that the correction text is utilized for speaker adaptation. COPYRIGHT: (C)2009,JPO&INPIT
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