发明名称 |
Method and apparatus for predictively quantizing voiced speech with substraction of weighted parameters of previous frames |
摘要 |
A method and apparatus for predictively quantizing voiced speech includes a parameter generator and a quantizer. The parameter generator is configured to extract parameters from frames of predictive speech such as voiced speech, and to transform the extracted information to a frequency-domain representation. The quantizer is configured to subtract a weighted sum of the parameters for previous frames from the parameter for the current frame. The quantizer is configured to quantize the difference value. A prototype extractor may be added to first extract a pitch period prototype to be processed by the parameter generator.
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申请公布号 |
US2004260542(A1) |
申请公布日期 |
2004.12.23 |
申请号 |
US20040897746 |
申请日期 |
2004.07.22 |
申请人 |
ANANTHAPADMANABHAN ARASANIPALAI K.;MANJUNATH SHARATH;HUANG PENGJUN;CHOY EDDIE-LUN TIK;DEJACO ANDREW P. |
发明人 |
ANANTHAPADMANABHAN ARASANIPALAI K.;MANJUNATH SHARATH;HUANG PENGJUN;CHOY EDDIE-LUN TIK;DEJACO ANDREW P. |
分类号 |
G10L19/04;G10L11/00;G10L11/04;G10L19/00;G10L19/02;G10L19/08;G10L19/14;H03M7/36;(IPC1-7):G10L19/04 |
主分类号 |
G10L19/04 |
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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