发明名称 |
Speech recognition system |
摘要 |
Speech words are recognized by first recognizing each spectral vector identified by a label (feneme), then identifying the word by matching the string of labels against phones using simplified phone machines based on label and transition probabilities and Merkov chains. In one embodiment, a detailed acoustic match word score is combined with an approximate acoustic match word score to provide a total word score for a subject word. In another embodiment, a polling word score is combined with an acoustic match word score to provide a total word score for a subject word. The acoustic models employed in the acoustic matching may correspond, alternatively, to phonetic elements or to fenemes. Fenemes represent labels generated by an acoustic processor in response to a spoken input. Apparatus and method for determining word scores according to approximate acoustic matching and for determining word scores according to a polling methodology are disclosed.
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申请公布号 |
US4718094(A) |
申请公布日期 |
1988.01.05 |
申请号 |
US19860845155 |
申请日期 |
1986.03.27 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORP. |
发明人 |
BAHL, LALIT R.;DESOUZA, PETER V.;DEGENNARO, STEVEN V.;MERCER, ROBERT L. |
分类号 |
G10L11/00;G10L15/08;G10L15/10;G10L15/12;G10L15/14;G10L15/18;(IPC1-7):G10L5/00 |
主分类号 |
G10L11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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