Real-time multiple speaker DOA estimation in a circular microphone array based on Matching Pursuit
Real-time multiple speaker DOA estimation in a circular microphone array based on Matching Pursuit
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基于匹配追踪的圆形麦克风阵列实时多说话人 DOA 估计
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
A. Mouchtaris
中科院分区：
文献类型：
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作者：
Anthony Griffin;Despoina Pavlidi;M. Puigt;A. Mouchtaris
我们最近提出了一种方法的启发稀疏分量分析的实时定位多个声源使用圆形麦克风阵列。该方法基于识别只有一个源是活跃的时频区域，将问题减少到这些区域中的单源定位。在已知信源个数的情况下，对波达方向估计值进行直方图处理，得到改进的波达方向估计值。在本文中，我们提出了一种新的方法来扩展我们以前的工作，最终的DOA估计，优于我们以前的方法在较低的信噪比和六个同时发言的情况下。在保持我们以前的工作的精神，新方法是非常有效的计算，促进其在实时系统中的使用。
We recently proposed an approach inspired by Sparse Component Analysis for real-time localisation of multiple sound sources using a circular microphone array. The method was based on identifying time-frequency zones where only one source is active, reducing the problem to single-source localisation in these zones. A histogram of estimated Directions of Arrival (DOAs) was formed and then processed to obtain improved DOA estimates, assuming that the number of sources was known. In this paper, we extend our previous work by proposing a new method for the final DOA estimations, that outperforms our previous method at lower SNRs and in the case of six simultaneous speakers. In keeping with the spirit of our previous work, the new method is very computationally efficient, facilitating its use in real-time systems.