发明名称 |
Bitstream-based feature extraction method for a front-end speech recognizer |
摘要 |
A feature extraction process for use in a wireless communication system provides automatic speech recognition based on both spectral envelope and voicing information. The shape of the spectral envelope is used to determine the LSPs of the incoming bitstream and the adaptive gain coefficients and fixed gain coefficients are used to generate the "voiced" and "unvoiced" feature parameter information.
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申请公布号 |
US6792405(B2) |
申请公布日期 |
2004.09.14 |
申请号 |
US20000730435 |
申请日期 |
2000.12.05 |
申请人 |
AT&T CORP. |
发明人 |
COX RICHARD VANDERVOORT;KIM HONG KOOK |
分类号 |
G10L15/02;(IPC1-7):G10L15/02;G10L9/14 |
主分类号 |
G10L15/02 |
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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