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Dual-channel Sound Source Localization Based on Upward Zero-crossing Points Detection in Rooms
Author(s): 
Pages: 26-30
Year: Issue:  2
Journal: Audio Engineering

Keyword:  室内声源定位时间差过零点检测混响;
Abstract: 提出了一种基于上升过零点检测的双传声器声源定位方法,该方法可以根据双传声器信号时间差样本的统计特性求得信噪比,再统计满足信噪比要求的可靠时间差样本,将其转换成对应的方位角样本,最后根据样本数量的统计分析结果确定声源方位.针对不同声源、信噪比及混响条件,在实际房间中进行了定位实验.结果显示:该方法对宽带声源具有更好的定位效果;定位精度受信噪比的影响很小,但受室内混响的影响显著.
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