发明名称 |
Gain quantization in analysis-by-synthesis linear predicted speech coding using linear intercodebook logarithmic gain prediction |
摘要 |
A gain quantization method, in analysis-by-synthesis linear predictive speech coding, includes these steps: determine a first gain for an optimal excitation vector from a first code book; quantize the first gain; determine an optimal second gain for an optimal excitation vector from a second code book; determine a linear prediction of the logarithm of the second gain from the quantized first gain; and quantize the difference between the logarithm of the second gain and the linear prediction.
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申请公布号 |
US5970442(A) |
申请公布日期 |
1999.10.19 |
申请号 |
US19970961867 |
申请日期 |
1997.10.31 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON |
发明人 |
TIMNER, YLVA |
分类号 |
G10L19/00;G10L19/08;G10L19/083;H03M7/30;(IPC1-7):G01L9/14 |
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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