Abstract
In a previous study, the performance of an acoustic feedback/echo cancellation system was analyzed using a power transfer function method. Whereas the analysis result provides very accurate performance predictions in open-loop acoustic echo cancellation systems, it is less accurate in closed-loop acoustic feedback cancellation systems if there is a strong correlation between the loudspeaker signal and the signals entering the microphones. This work extends the performance analysis to include the effects of the nonzero correlation on the adaptive filters. Simulation results verify that this extension provides much more accurate performance predictions in closed-loop acoustic feedback cancellation systems. © 2013 IEEE.
Recommended Citation
M. Guo et al., "Analysis of Closed-loop Acoustic Feedback Cancellation Systems," ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, pp. 590 - 594, article no. 6637716, Institute of Electrical and Electronics Engineers, Oct 2013.
The definitive version is available at https://doi.org/10.1109/ICASSP.2013.6637716
Department(s)
Engineering Management and Systems Engineering
Keywords and Phrases
acoustic feedback cancellation; Adaptive filters; closed-loop systems; estimation bias; steady-state behavior
International Standard Book Number (ISBN)
978-147990356-6
International Standard Serial Number (ISSN)
1520-6149
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
18 Oct 2013
