Subband generalized sidelobe canceller - A constrained region approach

被引：0
|
作者：
Low, SY [1 ]
Nordholm, S [1 ]
Grbic, N [1 ]
机构：
[1] WA Telecomms Res Inst, Crawley, WA 6009, Australia
来源：
2003 IEEE WORKSHOP ON APPLICATIONS OF SIGNAL PROCESSING TO AUDIO AND ACOUSTICS PROCEEDINGS | 2003年
关键词：
D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
This paper proposes an efficient microphone array processing technique for speech enhancement. The scheme incorporates the source and interference predefined regions into a subband generalized sidelobe canceller (GSC). The lower path consists of two space constrained beamformers to extract the interference information outside the source region. This information then serves as a reference for an improved adaptive noise canceller to enhance the target signal. The key feature of this approach is that it is voice activity detector free. Evaluations made in a hands-free situation show very good interference suppression with negligible expense on the source distortion.
引用
收藏
页码：41 / 44
页数：4
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