发明名称 |
SPEECH ANALYZER DETECTING PITCH FREQUENCY, SPEECH ANALYZING METHOD, AND SPEECH ANALYZING PROGRAM |
摘要 |
<p>A speech analyzer comprises a speech acquiring section, a frequency converting section, an autocorrelation section, and a pitch detecting section. The frequency converting section converts the speech signal acquired by the speech acquiring section into a frequency spectrum. The autocorrelation section determines an autocorrelation waveform by shifting the frequency spectrum along the frequency axis. The pitch detecting section determines the pith frequency from the distance between two local crests or troughs of the autocorrelation waveform.</p> |
申请公布号 |
WO2006132159(A1) |
申请公布日期 |
2006.12.14 |
申请号 |
WO2006JP311123 |
申请日期 |
2006.06.02 |
申请人 |
A.G.I. INC.;MITSUYOSHI, SHUNJI;OGATA, KAORU;MONMA, FUMIAKI |
发明人 |
MITSUYOSHI, SHUNJI;OGATA, KAORU;MONMA, FUMIAKI |
分类号 |
G10L11/04;G10L11/00 |
主分类号 |
G10L11/04 |
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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