发明名称 |
Detection of the start/end of words for word recognition |
摘要 |
<p>A speech recognition process uses an algorithm to identify the start of speech and simultaneously the end of a pause as well as the end of speech. The speech signal is divided into a number of blocks and a characteristic vector is defined that has two characteristics. One is a function of the signal energy and the other is a function of the quadratic difference of a linear predictive coding, LPC, Cepstrum coefficient. The average characteristic vector is calculated based upon a fixed number of blocks and a comparison made with a threshold value to determine start and end points. <IMAGE></p> |
申请公布号 |
EP0690436(B1) |
申请公布日期 |
2001.10.31 |
申请号 |
EP19950108570 |
申请日期 |
1995.06.03 |
申请人 |
ALCATEL |
发明人 |
HOERMANN, THOMAS;ROZINAJ, GREGOR, DR. |
分类号 |
G10L15/05;G10L25/12;G10L25/24;G10L25/78;G10L25/87;(IPC1-7):G10L15/04 |
主分类号 |
G10L15/05 |
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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