发明名称 |
MODEL-BASED SIGNAL ENHANCEMENT SYSTEM |
摘要 |
A signal processing system enhances a speech input signal. A signal reconstruction circuit receives the speech input signal and extracts a spectral envelope. The signal reconstruction circuit generates an excitation signal based on the input signal, and generates a reconstructed speech signal based on the extracted spectral envelope and an excitation signal. A combining circuit combines the noise reduced signal and the reconstructed speech signal. Signal reconstruction and signal combinations may be based on a signal-to-noise ratio of the speech signal or another input.
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申请公布号 |
US2008140396(A1) |
申请公布日期 |
2008.06.12 |
申请号 |
US20070928251 |
申请日期 |
2007.10.30 |
申请人 |
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发明人 |
GROSSE-SCHULTE DOMINIK;KRINI MOHAMED;SCHMIDT GERHARD UWE |
分类号 |
G10L21/02;G10L21/0208;G10L21/0264 |
主分类号 |
G10L21/02 |
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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