Acoustic Echo Method Using Least Mean Square Algorithm: Review

Authors

  • Soumya Guru, Anand Swaroop Khare, M tech Scholar ,OIMT Damoh Asst Prof EC Deptt ,OIMT Damoh

Keywords:

parameters, difference, telecommunications, cancellationwillbe

Abstract

Adaptive filters are a class offilters that iteratively alter their parameters in order to minimise a function of the difference betweena desired target output andtheiroutput.Inthe case of acoustic echo in telecommunications, the optimal output is an echoed signal that accurately emulates the unwanted echo signal. This is then used to negate the echo in the return signal. The better the adaptive filter emulates this echo, the more successful the cancellationwillbe.

References

. Lee, K.A.; Gan,W.S; “Improving convergence of the NLMS algorithm using constrained subband updates,” Signal Processing Letters IEEE, vol. 11, pp. 736-739, Sept. 2004.

. Tandon, A.; Ahmad, M.O.; Swamy, M.N.S.; “An efficient, low-complexity, normalized LMS algorithm for echo cancellation”, IEEE workshop on Circuits and Systems, 2004. NEWCAS 2004, pp. 161-164, June 2004.

. Eneman, K.; Moonen, M.; “Iterated partitioned block frequency-domain adaptive filtering for acoustic echo cancellation,” IEEE Transactions on Speech and Audio Processing, vol. 11, pp. 143-158, March 2003.

. D.L. Duttweiler, “Proportionate Normalized Least Mean Square Adaptation in Echo Cancellers,” IEEE Trans. Speech Audio Processing, vol. 8, pp. 508-518, Sept. 2000.

. E. Soria, J. Calpe, J. Guerrero, M. Martínez, and J. Espí, “An easy demonstration of the optimum value of the adaptation constant in the LMS algorithm,” IEEE Trans. Educ., vol. 41, pp. 83, Feb. 1998.

. J. Benesty, H. Rey, L. Rey Vega, and S. Tressens, “A nonparametric VSS NLMS algorithm,” IEEE Signal Process. Lett., vol. 13, pp. 581–584, Oct. 2006.

. S.C. Douglas, “Adaptive Filters Employing Partial Updates,” IEEE Trans.Circuits SYS.II, vol. 44, pp. 209-216, Mar 1997.

S. M. Kuo and D. R. Morgan, Active Noise Control Systems – Algorithms and DSP Implementations. New York: Wiley, 1996.

A. Miguez-Olivares, M. Recuero-Lopez, Development of an Active Noise Controller in the DSP Starter Kit. TI SPRA336. September 1996.

Downloads

Published

2015-02-28

Issue

Vol. 4 No. 3 (2015): FEBRUARY 2015

Section

Articles

License

Copyright Notice

Submission of an article implies that the work described has not been published previously (except in the form of an abstract or as part of a published lecture or academic thesis), that it is not under consideration for publication elsewhere, that its publication is approved by all authors and tacitly or explicitly by the responsible authorities where the work was carried out, and that, if accepted, will not be published elsewhere in the same form, in English or in any other language, without the written consent of the Publisher. The Editors reserve the right to edit or otherwise alter all contributions, but authors will receive proofs for approval before publication.

Copyrights for articles published in World Scholars journals are retained by the authors, with first publication rights granted to the journal. The journal/publisher is not responsible for subsequent uses of the work. It is the author's responsibility to bring an infringement action if so desired by the author.