Analysis of finite length acoustic echo cancellation system
Speech Communication
Combined acoustic echo control and noise reduction for hands-free telephony
Signal Processing - Special issue on acoustic echo and noise control
New optimal filtering approaches for hands-free telecommunication terminals
Signal Processing - Special issue on acoustic echo and noise control
Residual echo filter for enhanced acoustic echo control
Signal Processing
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Advances in Network and Acoustic Echo Cancellation
Advances in Network and Acoustic Echo Cancellation
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A post-filtering technique for enhancing acoustic echo cancelation (AEC) system is proposed in this paper, the proposed filter takes in the output of the conventional AEC system and estimates the percentage of the residual error, with respect to the reference signal. This percentage of residual error is terms as "leakage" and is used in adjusting adaptation step size and calculating the post-filter gain. The proposed technique improves the convergence speed and performance of the conventional AEC systems and is simple to implementation.