A new partial update NLMS for stereophonic acoustic echo cancellation

In this paper, we present a new partial update NLMS adaptive filtering algorithm for improving the performance of stereophonic acoustic echo cancellers. The proposed partial update approach brings about a low interchannel coherence, independent of the location of the source in the transmission section which in turn increases the robustness to source positions as well as the convergence rate of adaptive filters in this application. Simulation results verify the increase in performance of the proposed algorithm over other partial update algorithms.