| 摘要 |
The present invention relates to a speech recognition apparatus and a speech recognition method for speech recognition with improved accuracy. A distance calculator 47 determines the distance from a microphone 21 to a user uttering. Data indicating the determined distance is supplied to a speech recognition unit 41 B. The speech recognition unit 41 B has plural sets of acoustic models produced from speech data obtained by capturing speeches uttered at various distances. From those sets of acoustic models, the speech recognition unit 41 B selects a set of acoustic models produced from speech data uttered at a distance closest to the distance determined by the distance calculator 47 , and the speech recognition unit 41 B performs speech recognition using the selected set of acoustic models.
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