A New Algorithm for Acoustic Echo Cancellation using Adaptive Filter

Abstract

The rapid recent growth of technology has changed the whole communications. However, the presence of a large acoustic coupling between the loudspeaker and microphone would produce a loud echo that would make conversation difficult. The echo suppressor offers a simple but effective method to counter the echo problem. However, the echo suppressor can support only half-duplex communication. The full-duplex communication allows both speakers to talk at the same time. This objective of this research is to produce an improved echo cancellation algorithm, which is capable of providing convincing results. The adaptive filters are used to reduce the unwanted echo and increasing the quality of speech signal. This paper focus on different adaptive filters algorithms and characterzied by the NLMS, DTD and NLP, LMS algorithms, and the calculation of different adaptive and echo cancellation algorithms must be simulated utilizing MATLAB.