A modified Subband post-filtering approach for MVDR beamformer

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 sim...

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Bibliographic Details
Main Authors: Yi Yang, Hui Song, Jia Liu, Xiuguo Bao, Qingsheng Yuan
Format: Conference Proceeding
Language:English
Subjects:
Array signal processing
Arrays
gain function
microphone array
Microphones
MVDR beamformer
Noise
Noise reduction
Speech
Speech enhancement
Subband post-filtering
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Summary: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.
DOI:10.1109/COGINF.2010.5599787