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Echo cancellation in mono and stereo using the conjugate gradient method
Department of Systems and Control, Information Technology, Uppsala University, Sweden.
Dept. of Electrical and Computer Engineering, University of Florida, USA.ORCID iD: 0000-0002-7599-4367
2001 (English)In: Proc. of the IEEE/EURASIP International Workshop on Acoustic Echo and Noise Control, 2001, 115-119 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper an approximation to the sliding window Recursive Least Squares (RLS) algorithm with filter estimate updates using the conjugate gradient algorithm is applied to the Acoustic Echo Cancellation (AEC)problem for the mono case. The method is shown to perform much better than the Normalized Least Mean Squares (NLMS) algorithm which is one of the standard algorithms used for AEC today. While it performs somewhat worse than RLS which is the optimal (unbiased) estimator in a least squares sense, it is shown to be computationally much less demanding. In contrast to RLS we believe that it may be feasible to implement in real time and hence the method presented here should be one of the best algorithms to consider for the AEC problem.

Place, publisher, year, edition, pages
2001. 115-119 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-77397OAI: oai:DiVA.org:liu-77397DiVA: diva2:526695
Conference
7th IEEE – EURASIP International Workshop on Acoustic Echo and Noise Control, 2001
Available from: 2012-05-14 Created: 2012-05-14 Last updated: 2016-08-31Bibliographically approved

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Echo cancellation in mono and stereo using the conjugate gradient method

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Larsson, Erik G.

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Citation style
  • apa
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Output format
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