Application of fast BLMS algorithm in acoustic echo cancellation

Yue Zhao; Nian Qiang Li

doi:10.1117/12.2021229

13 March 2013 Application of fast BLMS algorithm in acoustic echo cancellation

Yue Zhao, Nian Qiang Li

Proceedings Volume 8783, Fifth International Conference on Machine Vision (ICMV 2012): Computer Vision, Image Analysis and Processing; 87831U (2013) https://doi.org/10.1117/12.2021229
Event: Fifth International Conference on Machine Vision (ICMV 12), 2012, Wuhan, China

Abstract

The acoustic echo path is usually very long and ranges from several hundreds to few thousands of taps. Frequency domain adaptive filter provides a solution to acoustic echo cancellation by means of resulting a significant reduction in the computational burden. In this paper, fast BLMS (Block Least-Mean-Square) algorithm in frequency domain is realized by using fast FFT technology. The adaptation of filter parameters is actually performed in the frequency domain. The proposed algorithm can ensure convergence with high speed and reduce computational complexity. Simulation results indicate that the algorithm demonstrates good performance for acoustic echo cancellation in communication systems.

Citation Download Citation

Yue Zhao and Nian Qiang Li "Application of fast BLMS algorithm in acoustic echo cancellation", Proc. SPIE 8783, Fifth International Conference on Machine Vision (ICMV 2012): Computer Vision, Image Analysis and Processing, 87831U (13 March 2013); https://doi.org/10.1117/12.2021229

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