Design And Simulation Of An Acoustic Echo Cancellation System For Hand-Free Telecommunication
Ein Gyin Pwint, Su Su Yi Mon, Hla Myo Tun
Keywords: LMS, NLMS, NCC, MSE, ERLE, MATLAB
Abstract: Acoustic echo cancellation is a common occurrence in today’s telecommunication systems. The signal interference caused by acoustic echo is distracting to users and causes a reduction in the quality of the communication. This paper is implementing the overall system of acoustic echo cancellation system using LMS and NLMS algorithms for adaptive filter, normalized cross correlation (NCC) algorithm double talk detector. The result of echo return loss enhancement (ERLE) and mean squared error (MSE) which show that how much the amount of echo signal cancelled and the amount of residual error signal for cancelling acoustic echo cancellation on a PC with the help of the MATLAB software.
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