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Study of Different Adaptive Filter Algorithms for Noise Cancellation in Real-Time Environment
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 96 - Number 10 |
| Year of Publication: 2014 |
| Authors: G. V. P. Chandra Sekhar Yadav, B. Ananda Krishna |
10.5120/16829-6589
|
G. V. P. Chandra Sekhar Yadav, B. Ananda Krishna . Study of Different Adaptive Filter Algorithms for Noise Cancellation in Real-Time Environment. International Journal of Computer Applications. 96, 10 ( June 2014), 20-25. DOI=10.5120/16829-6589
Abstract
Adaptive filters are used in the situation where the filter coefficients have to be changed simultaneously according to the requirement. Adaptive filters are needed for fast convergence rate and low mean square error. Many algorithms have been proposed and proved that they have better convergence speed and tracking abilities. This paper shows the ability of adaptive filter for noise cancellation i. e. , estimating the desired speech corrupted by unwanted signal i. e. , noise. This paper is going to compare the performance of adaptive algorithms for noise cancellation in real time signals like recorded speech with different background noise. In the existing papers the authors have taken the input signal as sinusoidal signal etc. In order to measure the performance step size is the main factor for the convergence speed and mean square error. Many analyses proved that RLS algorithm had faster convergence speed and smaller steady state error compared with basic LMS algorithm and normalized LMS algorithm (NLMS). The existing simulation results enable to measure the performance of filter and show the convergence speed improvement when using RLS algorithm, NLMS algorithm and LMS algorithm.
References
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