发明名称 |
Systems, methods, and apparatus for wideband speech coding |
摘要 |
A wideband speech encoder according to one embodiment includes a narrowband encoder and a highband encoder. The narrowband encoder is configured to encode a narrowband portion of a wideband speech signal into a set of filter parameters and a corresponding encoded excitation signal. The highband encoder is configured to encode, according to a highband excitation signal, a highband portion of the wideband speech signal into a set of filter parameters. The highband encoder is configured to generate the highband excitation signal by applying a nonlinear function to a signal based on the encoded narrowband excitation signal to generate a spectrally extended signal.
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申请公布号 |
US8484036(B2) |
申请公布日期 |
2013.07.09 |
申请号 |
US20060397794 |
申请日期 |
2006.04.03 |
申请人 |
VOS KOEN BERNARD;KANDHADAI ANANTHAPADMANABHAN AASANIPALAI;QUALCOMM INCORPORATED |
发明人 |
VOS KOEN BERNARD;KANDHADAI ANANTHAPADMANABHAN AASANIPALAI |
分类号 |
G10L19/00;G10L19/08 |
主分类号 |
G10L19/00 |
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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