Implementation of an Adaptive Filter Algorithm with Sub band Filtering Approach on Acoustic Echo Cancellation

著者

  • Gopalaiah .
  • K. Suresh

要旨

 This paper  focus on  model and its realization on digital signal processors (DSP) for suppressing annoying acoustic echoes in tele- phone and mobile communication applications. Such has high quality voice communications, Video conference and Audio conference .and main Features are 1) Less computational complexity 2) maximum Attenuation  fast convergence rate , and speed. The performing of the adaptive filtering in subbands at a down-up-scaled sampling rate. The algorithm is described theoretical, and Practical modeled under MATLAB/Simulink tool. And implemented on a fixed-point DSP Processor. Keywords: DSP Processor, Adaptive filters, (LMS) Near End Speaker´s(NES), Far End Speaker (FES), LEM System, ECF non-linear filters, Analysis Filter and Synthesis Filter 

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発行日

2015-01-08

巻号

巻 4 号 3 (2014)

セクション

Research Articles

ライセンス

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