发明名称 |
System and method for extending spectral bandwidth of an audio signal |
摘要 |
A system is provided for extending the spectral bandwidth of a bandwidth limited audio signal by applying a nonlinear function to the bandwidth limited speech signal to generate the low frequency audio signal components that were attenuated in the bandwidth limited audio signal.
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申请公布号 |
US7756714(B2) |
申请公布日期 |
2010.07.13 |
申请号 |
US20070701184 |
申请日期 |
2007.01.31 |
申请人 |
NUANCE COMMUNICATIONS, INC. |
发明人 |
ISER BERND;SCHMIDT GERHARD |
分类号 |
G10L19/14;G10L21/02;G10L21/038 |
主分类号 |
G10L19/14 |
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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