A modified Subband post-filtering approach for MVDR beamformer.

Yi Yang,Hui Song,Jia Liu,Xiuguo Bao,Qingsheng Yuan

IEEE ICCI（2010）

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摘要

MVDR beamformer is a robust beamforming method to enhance a desired (speech) signal in the presence of stationary noise. This paper presents a modified Subband post-filtering approach for MVDR beamformer in microphone array system. The quality of the modified Subband post-filtering is studied in simulated rooms with different noise level and is compared to wiener post-filtering proposed in the literature. Experiments confirm the effectiveness of the proposed system. © 2010 IEEE.

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关键词

gain function,microphone array,mvdr beamformer,subband post-filtering,noise,noise reduction,speech

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