发明名称 |
Double mode long term prediction in speech coding |
摘要 |
A method of coding a sampled speech signal vector in an analysis-by-synthesis coding procedure includes the step of forming an optimum excitation vector comprising a linear combination of a code vector from a fixed code book and a long term predictor vector. A first estimate of the long term predictor vector is formed in an open loop analysis. A second estimate of the-long term predictor vector is formed in a closed loop analysis. Finally, each of the first and second estimates are combined in an exhaustive search with each code vector of the fixed code book to form that excitation vector that gives the best coding of the speech signal vector. |
申请公布号 |
AU658053(B2) |
申请公布日期 |
1995.03.30 |
申请号 |
AU19930034651 |
申请日期 |
1993.01.19 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON |
发明人 |
TOR BJORN MINDE |
分类号 |
G10L19/04;G10L19/00;G10L19/12;H03M7/30;(IPC1-7):G10L9/14 |
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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