A Multi-Microphone Noise Reduction Approach Based on Beamforming and Signal Subspace Filter

被引：0
|
作者：
Dong Pengyu [1 ]
Tao, Lin [1 ]
机构：
[1] Tongji Univ, VLSI Inst, Shanghai 200092, Peoples R China
来源：
PROCEEDINGS OF THE 27TH CHINESE CONTROL CONFERENCE, VOL 3 | 2008年
关键词：
SSA; Noise Reduction; Beamforming;
D O I：
10.1109/CHICC.2008.4605260
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A new approach combing beamforming and subspace filter is proposed for noise reduction under multi-microphone condition. The directional characteristic of beamforming provides nulls against the noise signal and directional lobe to the target signal. The output of beamforming acts as input signal of subspace filter. Compared with other algorithms based on signal subspace approach (SSA), the presented method not only further reduces background noise but also decreases computation Cost. Experimental results show that the proposed method outperforms conventional SSA algorithms in noise reduction, while its computation complexity is also lower.
引用
收藏
页码：530 / 533
页数：4
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