Paper Info
Title
Study on combining multi-channel echo cancellers with beamformers
Abstract
In this paper, we 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.
Year
DOI
Venue
2000
10.1109/ICASSP.2000.859080
Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference
Keywords
Field
DocType
acoustic signal processing,adaptive filters,array signal processing,computational complexity,echo suppression,speech processing,white noise,AEC-unit,NRU unit,acoustic echo cancellation,adaptive filter,beamformers,computational complexity,control information,multi-channel echo cancellers,multi-channel nonadaptive noise reduction unit,standard single-channel voice transmission
Noise reduction,Speech processing,Computer science,Speech recognition,White noise,Multi channel,Adaptive filter,Computational complexity theory
Conference
Volume
ISSN
ISBN
2
1520-6149
0-7803-6293-4
Citations 
PageRank 
References 
5
0.50
3
Authors
3
Name
Order
Citations
PageRank
Kallinger, M.150.50
Joerg Bitzer2838.72
Kammeyer, K.-D.319421.42