发明授权
- 专利标题： Method for recognition of the start of a note in the case of percussion or plucked musical instruments
- 专利标题（中）： 在打击乐器或采摘乐器的情况下识别音符开始的方法
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申请号： US585165申请日： 1996-01-11
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公开(公告)号： US5710387A公开(公告)日： 1998-01-20
- 发明人: Andreas Szalay
- 申请人： Andreas Szalay
- 申请人地址： JPX
- 专利权人： Yamaha Corporation
- 当前专利权人： Yamaha Corporation
- 当前专利权人地址： JPX
- 优先权： DEX19500751.4-51 19950112
- 主分类号： G10L11/02
- IPC分类号： G10L11/02 ; G10H1/00 ; G10H1/057 ; G10H3/12 ; G10H3/14 ; G10L15/04 ; G10L15/10 ; G10H1/02 ; G10H5/00
摘要：
A method is specified for recognition of the start of a note in the case of percussion or plucked musical instruments, in the case of which an envelope curve following function is formed from an audio signal, a comparison variable is formed from a current value of the envelope curve following function and a predecessor value corresponding to an earlier value, and the start of a note is defined at a point in time at which the comparison value exceeds a threshold value.
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