Voice recognition system

专利名称：Voice recognition system发明人：Kobayashi, Hajime, Pioneer

Corporation,Komamura, Mitsuya, PioneerCorporation,Toyama, Soichi, PioneerCorporation

申请号：EP01307684.9申请日：20010910公开号：EP11200A1公开日：20020320

专利附图：

摘要：A trained vector creating part 15 creates a characteristic of an unvoiced sound in

advance as a trained vector V. Meanwhile, a threshold value THD for distinguishing a voicefrom a background sound is created based on a predictive residual power ε of a soundwhich is created during a non-voice period. As a voice is actually uttered, an inner productcomputation part 18 calculates an inner product of a feature vector A of an input signalSa and a trained vector V, and a first threshold value judging part 19 judges that it is avoice section when the inner product has a value which is equal to or larger than apredetermined value θ while a second threshold value judging part 21 judges that it is avoice section when the predictive residual power ε of the input signal Sa is larger than athreshold value THD. As at least one of the first threshold value judging part 19 and thesecond threshold value judging part 21 judges that it is a voice section, a voice sectiondetermining part 300 finally judges that it is a voice section and cuts out an input signalSaf which are in units of frames and corresponds to this voice section as a voice Svc whichis to be recognized.

申请人：Pioneer Corporation

地址：4-1 Meguro 1-chome Meguro-ku, Tokyo JP

国籍：JP

代理机构：Haley, Stephen

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