发明名称 |
Speech encoder |
摘要 |
A CELP speech encoder comprising a pitch analyzer operating before adaptive codebook search, said pitch analyzer determining a first typical pitch estimate for a set of subframes and corresponding autocorrelation values. Further determining provisional pitch estimates for each subframes based on the typical pitch estimates and the maximization of combined autocorrelation values of two subframes. Setting the search interval of the adaptive codebook based on the provisional pitch estimates. |
申请公布号 |
EP1959434(A2) |
申请公布日期 |
2008.08.20 |
申请号 |
EP20080153942 |
申请日期 |
2000.08.23 |
申请人 |
PANASONIC CORPORATION |
发明人 |
YASUNAGA, KAZUTOSHI;MORII, TOSHIYUKI |
分类号 |
G10L19/083;G10L19/09;G10L19/16 |
主分类号 |
G10L19/083 |
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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