发明名称 |
Method for recognizing speech with noise-dependent variance normalization |
摘要 |
<p>As the application of a variance normalization (VN) to a speech signal (S) may be advantageous as well as disadvantageous with respect to the recognition rate in a speech recognizing process in dependence of the degree of the signal disturbance it is suggested to calculate a degree (ND) of variance normalization strength in dependence of the noise level of the signal, thereby skipping the step of variance normalization in the case of an undisturbed or clean signal. <IMAGE></p> |
申请公布号 |
EP1229517(A1) |
申请公布日期 |
2002.08.07 |
申请号 |
EP20010102582 |
申请日期 |
2001.02.06 |
申请人 |
SONY INTERNATIONAL (EUROPE) GMBH |
发明人 |
KEMP, THOMAS |
分类号 |
G10L15/20;G10L21/02;(IPC1-7):G10L15/20 |
主分类号 |
G10L15/20 |
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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