| 摘要 |
PROBLEM TO BE SOLVED: To provide a noise-suppressing device capable of appropriately removing the noise from speech in which two or more kinds of noises are superimposed. SOLUTION: The noise suppressing device comprises a speech noise acoustic model storage section 14 for storing a plurality of speech noise acoustic models of one classification of speech and noise of a training data, including speech and noise; a synthesized acoustic model storage section 15 for storing a combined acoustic model, in which two or more classifications of speech and noise of the training data are synthesized; a dictionary information storage section 17 for storing dictionary information for relating a label to the acoustic model; a label language model storage section 18 for storing a label language model of the label of the classification of speech and noise which are superimposed in the training data; a receiving section 19 for receiving a noise superimposed speech data; a label recognition section 20 for recognizing a label sequence of the noise superimposed speech data, by using each model and the dictionary information; and a noise suppressing section 21 for generating a clean speech data, in which noise is suppressed by using the label sequence. COPYRIGHT: (C)2009,JPO&INPIT
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