发明名称 |
Transient noise removal system using wavelets |
摘要 |
A transient noise removal system removes or dampens undesired transients from speech. When the transient noise removal system receives a speech frame, the system performs a wavelet transform analysis. The speech frame may be represented by one or more wavelet coefficients across one or more wavelet levels. For a given wavelet level, the transient noise-removal system may determine a wavelet threshold. The transient noise removal system may compare the threshold corresponding to a wavelet level to the wavelet coefficients within that level. The transient noise removal system may attenuate each wavelet coefficient based on a comparison to a threshold.
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申请公布号 |
US2008183466(A1) |
申请公布日期 |
2008.07.31 |
申请号 |
US20070699709 |
申请日期 |
2007.01.30 |
申请人 |
NONGPIUR RAJEEV;PARANJPE SHREYAS A;HETHERINGTON PHILLIP A |
发明人 |
NONGPIUR RAJEEV;PARANJPE SHREYAS A.;HETHERINGTON PHILLIP A. |
分类号 |
G10L21/00 |
主分类号 |
G10L21/00 |
代理机构 |
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地址 |
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