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Reseach Article

Adaptive LMS and NLMS algorithms for cancellation of Acoustic Echo

Published on May 2012 by V. R. Metkewar, A. N. Kamthane, Aqeel Ahemad, S. A. Hashmi
National Conference on Advancement in Electronics & Telecommunication Engineering
Foundation of Computer Science USA
NCAETE - Number 4
May 2012
Authors: V. R. Metkewar, A. N. Kamthane, Aqeel Ahemad, S. A. Hashmi
837935be-af99-405e-a675-ae0a8bc0c96d

V. R. Metkewar, A. N. Kamthane, Aqeel Ahemad, S. A. Hashmi . Adaptive LMS and NLMS algorithms for cancellation of Acoustic Echo. National Conference on Advancement in Electronics & Telecommunication Engineering. NCAETE, 4 (May 2012), 25-27.

@article{
author = { V. R. Metkewar, A. N. Kamthane, Aqeel Ahemad, S. A. Hashmi },
title = { Adaptive LMS and NLMS algorithms for cancellation of Acoustic Echo },
journal = { National Conference on Advancement in Electronics & Telecommunication Engineering },
issue_date = { May 2012 },
volume = { NCAETE },
number = { 4 },
month = { May },
year = { 2012 },
issn = 0975-8887,
pages = { 25-27 },
numpages = 3,
url = { /proceedings/ncaete/number4/6616-1106/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 National Conference on Advancement in Electronics & Telecommunication Engineering
%A V. R. Metkewar
%A A. N. Kamthane
%A Aqeel Ahemad
%A S. A. Hashmi
%T Adaptive LMS and NLMS algorithms for cancellation of Acoustic Echo
%J National Conference on Advancement in Electronics & Telecommunication Engineering
%@ 0975-8887
%V NCAETE
%N 4
%P 25-27
%D 2012
%I International Journal of Computer Applications
Abstract

Acoustic echo arise in hand free communication environment due to poor voice coupling between Microphone and Loudspeaker. This paper shows the implementation of Acoustic echo cancellation using gradient based LMS algorithm it also focused on NLMS algorithm to remove the unwanted echo and increase the quality of speech in communication applications . The LMS algorithms uses the estimates of the gradient vector from the available data. LMS and NLMS incorporates an iterative procedure that updates weight vector in the direction opposite of the gradient vector which evenly leads to the minimum mean square error.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Lms And Lms Algorithm Error Estimation Adaptive Filter