发明授权
- 专利标题： Method for detecting audio signal transient and time-scale modification based on same
- 专利标题（中）： 用于检测音频信号瞬态和时间尺度修改的方法
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申请号： US13047800申请日： 2011-03-15
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公开(公告)号： US08489404B2公开(公告)日： 2013-07-16
- 发明人: Zhongsong Lin , Shidong Shang , Shengjiu Wang
- 申请人： Zhongsong Lin , Shidong Shang , Shengjiu Wang
- 申请人地址： US TX Austin
- 专利权人： Freescale Semiconductor, Inc.
- 当前专利权人： Freescale Semiconductor, Inc.
- 当前专利权人地址： US TX Austin
- 代理商 Charles Bergere
- 优先权： CN2010101139991 20100402
- 主分类号： G10L19/00
- IPC分类号： G10L19/00
摘要：
A method for detecting a transient in an audio signal that has been broken up into frames includes obtaining a time domain feature of the frames and comparing the domain feature with a predetermined value. If the time domain feature is greater than the predetermined value, the frames are taken as transient and if the time domain feature is less than the predetermined value, the frames are taken as non-transient. The method has a low computational intensity and is thus very suitable for devices with limited processing resources.
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