Speech recognition apparatus and speech recognition method

Details Speech recognition apparatus and speech recognition method Speech recognition apparatus and speech recognition method

2006-02-24

2008-01-22

Edouard, Patrick N. (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

C704S231000, C704S243000

Reexamination Certificate

active

07321853

ABSTRACT:
The present invention relates to a speech recognition apparatus and a speech recognition method for speech recognition with improved accuracy. A distance calculator47determines the distance from a microphone21to a user uttering. Data indicating the determined distance is supplied to a speech recognition unit41B. The speech recognition unit41B 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 unit41B selects a set of acoustic models produced from speech data uttered at a distance closest to the distance determined by the distance calculator47, and the speech recognition unit41B performs speech recognition using the selected set of acoustic models.

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