发明名称 |
Beat extraction device and beat extraction method |
摘要 |
Upon receiving a digital audio signal recorded in a .wav file, a beat extraction processing unit 12 extracts coarse beat position information from this digital audio signal and outputs the result as metadata recorded in an .mty file. In addition, a beat alignment processing unit 13 aligns beat information of the metadata recorded in the .mty file and outputs the result as metadata recorded in a .may file. Beats of a rhythm of music are extracted highly accurately while reproducing a music signal of a musical tune. |
申请公布号 |
US8076566(B2) |
申请公布日期 |
2011.12.13 |
申请号 |
US20070161882 |
申请日期 |
2007.01.24 |
申请人 |
YAMASHITA KOSEI;MIYAJIMA YASUSHI;SONY CORPORATION |
发明人 |
YAMASHITA KOSEI;MIYAJIMA YASUSHI |
分类号 |
G10H1/40 |
主分类号 |
G10H1/40 |
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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