发明名称 |
LINEAR-PREDICTIVE ANALYSIS DEVICE, METHOD, PROGRAM, AND RECORDING MEDIUM |
摘要 |
An autocorrelation calculating part 21 calculates autocorrelation R o (i) from an input signal. A predictive coefficient calculating part 23 performs linear predictive analysis using modified autocorrelation R' o (i) obtained by multiplying the autocorrelation R o (i) by a coefficient w o (i). Here, a case is comprised where, for at least part of each order i, the coefficient w o (i) corresponding to each order i monotonically decreases as a value having positive correlation with a pitch gain in an input signal of a current frame or a past frame increases. |
申请公布号 |
EP3098812(A1) |
申请公布日期 |
2016.11.30 |
申请号 |
EP20150740820 |
申请日期 |
2015.01.20 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
KAMAMOTO, YUTAKA;MORIYA, TAKEHIRO;HARADA, NOBORU |
分类号 |
G10L25/12;G10L25/06;G10L25/90 |
主分类号 |
G10L25/12 |
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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