Adaptive Least Mean Square Noise Cancellation Model Using Various Fixed Coefficient Digital Filters.

Abstract

The paper presents an adaptive least mean square active noise cancellation model using the various conventional digital filters along with the least mean square filter block. The paper investigates the effect on the output of noise cancellation system for pre recorded audio signal and noise signal with fixed convergence factor, filter order of the adaptive filter. An active noise cancellation system model with a peak-notch filter is proposed. Simulation and theoretical results indicate better results when compared with the conventional model.