发明名称 |
Computational music-tempo estimation |
摘要 |
Various method and system embodiments of the present invention are directed to computational estimation of a tempo for a digitally encoded musical selection. In certain embodiments of the present invention, described below, a short portion of a musical selection is analyzed to determine the tempo of the musical selection. The digitally encoded musical selection sample is computationally transformed to produce a power spectrum corresponding to the sample, in turn transformed to produce a two-dimensional strength-of-onset matrix. The two-dimensional strength-of-onset matrix is then transformed into a set of strength-of-onset/time functions for each of a corresponding set of frequency bands. The strength-of-onset/time functions are then analyzed to find a most reliable onset interval that is transformed into an estimated tempo returned by the analysis.
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申请公布号 |
US7645929(B2) |
申请公布日期 |
2010.01.12 |
申请号 |
US20060519545 |
申请日期 |
2006.09.11 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
CHANG YU-YAO;SAMADANI RAMIN;ZHANG TONG;WIDDOWSON SIMON |
分类号 |
G04F10/06 |
主分类号 |
G04F10/06 |
代理机构 |
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