发明名称 |
SYSTEMS, METHODS, AND APPARATUS FOR WIDEBAND SPEECH CODING |
摘要 |
<p>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. Figure 1a</p> |
申请公布号 |
SG163556(A1) |
申请公布日期 |
2010.08.30 |
申请号 |
SG20100047447 |
申请日期 |
2006.04.03 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
VOS, KOEN, BERNARD;KANDHADAI, ANANTHAPADMANABHAN, A. |
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