发明申请
US20140177844A1 METHOD FOR VISUALIZING THE DIRECTIONAL SOUND ACTIVITY OF A MULTICHANNEL AUDIO SIGNAL
有权
用于显示多声道音频信号的方向声音活动的方法
- 专利标题: METHOD FOR VISUALIZING THE DIRECTIONAL SOUND ACTIVITY OF A MULTICHANNEL AUDIO SIGNAL
- 专利标题(中): 用于显示多声道音频信号的方向声音活动的方法
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申请号: US13722706申请日: 2012-12-20
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公开(公告)号: US20140177844A1公开(公告)日: 2014-06-26
- 发明人: Raphaël Nicolas GREFF , Hong Cong Tuyen Pham
- 申请人: Raphaël Nicolas GREFF , Hong Cong Tuyen Pham
- 主分类号: H04R5/04
- IPC分类号: H04R5/04
摘要:
The invention relates to a method for visualizing a directional sound activity of a multichannel audio signal, comprising: receiving input audio channels, spatial information being associated with each one of said channel, performing a time-frequency transformation of said input audio channels, for each one of a plurality of frequency sub-bands, determining a directional sound activity vector from said transformed input audio channels, determining a contribution of each one of said directional sound activity vectors within sub-divisions of space on the basis of directivity information related to each sub-divisions of space, for each sub-division of space, determining directional sound activity level within said sub-division of space by summing said contributions within said sub-division of space, displaying a visualization of the directional sound activity of the multichannel audio signal by a graphical representation of directional sound activity level within said sub-division of space.
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