Speech Processing using Normalized Least Mean Square

Abstract

Signal processing has become an important tool in almost all fields of science and engineering. The characteristics of signals/systems are either not known or change with time. Processing techniques/algorithms should adapt to the unknown characteristics which may be time invariant or variant. ANC is a technique used to remove a unwanted noise from received signal. ANC is typically a dual-input, closed-loop adaptive feedback system. the primary sensor not only records the signal from the desired signal source, it also picks up a delayed and/or filtered version of noise signals originating from the noise source. The purpose of this dissertation work deals with the various aspects of design & implementation of Real-Time Noise Cancellation and its usage in different applications.