Fig. 4From: Improving the conditioning of the optimization criterion in acoustic multi-channel equalization using shorter reshaping filtersTypical L-curve obtained using PMINT for several reshaping filter lengths ranging from \(L^{\mathrm {t}}_{g} = 1947\) to \(L^{s}_{g} = 300\). The considered acoustic system is system S1 described in Section 6.1Back to article page