Fig. 8From: An overview on optimized NLMS algorithms for acoustic echo cancellationRegularization influence on the control parameters. Evolution of the normalized step-sizes of the NPVSS-NLMS algorithm [ α NPVSS(n)] and OSS-NLMS-id algorithm [ α opt(n)] for different values of δ: a \(\delta = {\sigma _{x}^{2}}\) and b \(\delta = 20{\sigma _{x}^{2}}\). Other conditions are the same as in Fig. 7 Back to article page