| 摘要 |
PROBLEM TO BE SOLVED: To provide a speech recognition device capable of improving a speech recognition rate for an unspecified number of speakers. SOLUTION: Speech at the time of utterance is input to a microphone 12, and a dynamic programming (DP) matching section 20e recognizes the speech which is input to the microphone 12 by a DP matching method. An utterance speed estimating section 20c estimates an utterance speed of the speech which is input to the microphone 12, and a matching window width setting section 20d sets a width of a matching window in speech recognition by the DP matching method of the DP matching section 20e, according to the utterance speed estimated by the utterance speed estimating section 20c. Thereby, the speech recognition rate is improved even for the unspecified number of speakers. COPYRIGHT: (C)2009,JPO&INPIT
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