发明名称 |
PITCH FREQUENCY ESTIMATION DEVICE, AND PITCH FREQUENCY ESTIMATION METHOD |
摘要 |
<p>A pitch frequency estimation device capable of estimating a pitch frequency precisely while reducing the computational complexity required for the estimation of the pitch frequency. In this device, a spectrum extraction unit (104) extracts a pitch-harmonized spectrum from a voice spectrum. A spectral average calculation unit (106) calculates the average of the power of the pitch-harmonized spectra extracted by the spectrum extraction unit (104), in a manner to individually correspond to a plurality of pitch frequency candidates. An estimation unit estimates the pitch frequency by using the average valve calculated by the spectral average calculation unit (106).</p> |
申请公布号 |
WO2006006366(A1) |
申请公布日期 |
2006.01.19 |
申请号 |
WO2005JP11533 |
申请日期 |
2005.06.23 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;WANG, YOUHUA;YOSHIDA, KOJI |
发明人 |
WANG, YOUHUA;YOSHIDA, KOJI |
分类号 |
G10L25/90;(IPC1-7):G10L11/04 |
主分类号 |
G10L25/90 |
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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