发明名称 |
MUSIC SECTION DETECTING APPARATUS AND METHOD, PROGRAM, RECORDING MEDIUM, AND MUSIC SIGNAL DETECTING APPARATUS |
摘要 |
An index calculating unit calculates a tonality index of a signal component of each area of an input signal transformed into a time frequency domain based on intensity (for example, power spectrum) of the signal component and a function (quadratic function) obtained by approximating the intensity of the signal component. A music determining unit determines whether or not each area of the input signal includes music based on the tonality index. The present technology can be applied to a music section detecting apparatus that detects a music part from an input signal in which music is mixed with noise.
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申请公布号 |
US2012266742(A1) |
申请公布日期 |
2012.10.25 |
申请号 |
US201213443047 |
申请日期 |
2012.04.10 |
申请人 |
TOUYAMA KEISUKE;ABE MOTOTSUGU |
发明人 |
TOUYAMA KEISUKE;ABE MOTOTSUGU |
分类号 |
G10H5/02 |
主分类号 |
G10H5/02 |
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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