发明授权
- 专利标题： Audio onset detection
- 专利标题（中）： 音频开始检测
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申请号： US12551389申请日： 2009-08-31
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公开(公告)号： US08401683B2公开(公告)日： 2013-03-19
- 发明人: Cynthia Maxwell , Frank Martin Ludwig Gunter Baumgarte
- 申请人： Cynthia Maxwell , Frank Martin Ludwig Gunter Baumgarte
- 申请人地址： US CA Cupertino
- 专利权人： Apple Inc.
- 当前专利权人： Apple Inc.
- 当前专利权人地址： US CA Cupertino
- 代理机构： Blakely, Sokoloff, Taylor & Zafman LLP
- 主分类号： G06F17/00
- IPC分类号： G06F17/00
摘要：
Among other things, techniques and systems are disclosed for detecting onsets. On a device, an audio signal is pre-processed in temporal domain. The pre-processed audio signal is smoothed on the device. A predetermined quantity of peaks is selectively identified in the pre-processed and smoothed audio signal based on a size of a sample window applied to the pre-processed and smoothed audio signal.
公开/授权文献
- US20110054648A1 Audio Onset Detection 公开/授权日：2011-03-03
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