发明名称 |
Segmenting a humming signal into musical notes |
摘要 |
A method (100) and apparatus (200) are disclosed for transcribing a humming signal into a sequence of musical notes. The method begins by grouping (305) the signal into frames of data samples. Each frame is then processed to derive (320) a frequency distribution for each frames. The frequency distributions are processed to derive (410) a Harmonic Product Energy (HPE) distribution over the frames. The HPE distribution is then segmented (115, 120) to obtain boundaries of musical notes. The frequency distributions of the frames are also processed to derive (412) a fundamental frequency distribution. A pitch for each note is determined (125) from the fundamental frequency distribution. |
申请公布号 |
US8193436(B2) |
申请公布日期 |
2012.06.05 |
申请号 |
US20050921593 |
申请日期 |
2005.06.07 |
申请人 |
SIM YONG HWEE;TEO CHUN WOEI;NEO SUA HONG;CHONG KOK SENG;MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
SIM YONG HWEE;TEO CHUN WOEI;NEO SUA HONG;CHONG KOK SENG |
分类号 |
G10H7/00;G10L25/90 |
主分类号 |
G10H7/00 |
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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