The Variable Step Size (VSS) Normalized Least Mean-Square (NLMS) algorithm has been studied in depth. Numerous publications have covered this technique from both theoretical and practical point of views. This contribution builds on the past knowledge and proposes an improvement. This is a single filter approach without any double talk detection. We will show that the proposed technique, in the context of acoustic echo cancellation, offers superior performance in terms of convergence speed, misalignment error, while offering superior resilience to low Echo to Interference Ratio, and Echo Path Change.

Authors: Lu, Youhong; Zadissa, Syavosh
Affiliation: Microsoft, Redmond, WA, USA
AES Convention: 137 (October 2014) Paper Number: 9121
Publication Date: October 8, 2014
Subject: Audio Signal Processing

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