Look-ahead near-end compensation in acoustic echo cancellation

This paper presents a novel method for the compensation of near-end interferences in acoustic echo cancellation. The technique is derived from a rigorous analysis dealing with the statistical impact of the update over the “look-ahead” error. The outcome is a well-conditioned problem, whose numerical solution is shaped from maximum-likelihood principles. Results on a realistic simulated scenario show the excellent performance and robustness of the proposed method.