Study on combining multi-channel echo cancellers with beamformers

被引：0
|
作者：
Kallinger, M [1 ]
Bitzer, J [1 ]
Kammeyer, KD [1 ]
机构：
[1] Univ Bremen, FB 1, Dept Telecommun, D-28334 Bremen, Germany
来源：
2000 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, PROCEEDINGS, VOLS I-VI | 2000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：
In this paper, we will compare different combinations of a multi-channel non-adaptive noise reduction unit (NRU) and an acoustic echo cancellation unit (AEC) for a standard single-channel voice transmission. The results show that the NRU and the AEC-unit can be interchanged without increasing the computational complexity of the combined system. The length of an AEC's adaptive filter can be greatly reduced, if a multi-channel AEC-unit in front of a multichannel NRU is used. Furthermore, the control information, like the step-size of the NLMS-algorithm, has to be computed only once.
引用
收藏
页码：797 / 800
页数：4
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