发明名称 |
SPEECH RECOGNITION DEVICE AND SPEECH RECOGNITION METHOD |
摘要 |
There is provided a voice recognition device and a voice recognition method that enhance the function of noise adaptation processing in voice recognition processing and reduce the capacity of a memory being used. Acoustic models are subjected to clustering processing to calculate the centroid of each cluster and the differential vector between the centroid and each model, model composition between each kind of assumed noise model and the calculated centroid is carried out, and the centroid of each composition model and the differential vector are stored in a memory. In the actual recognition processing, the centroid optimal to the environment estimated by the utterance environmental estimation is extracted from the memory, model restoration is carried out on the extracted centroid by using the differential vector stored in the memory, and noise adaptation processing is executed on the basis of the restored model.
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申请公布号 |
EP1732063(A1) |
申请公布日期 |
2006.12.13 |
申请号 |
EP20050721202 |
申请日期 |
2005.03.15 |
申请人 |
PIONEER CORPORATION |
发明人 |
KOBAYASHI, HAJIME;TOYAMA, SOICHI;SUZUKI, YASUNORI |
分类号 |
G10L15/06;G10L15/20;G10L15/28 |
主分类号 |
G10L15/06 |
代理机构 |
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