Fig. 14From: Efficient multichannel acoustic echo cancellation using constrained tap selection schemes in the subband domainTotal computational effort required per frame for implementing the different tap selection schemes and for updating the MAEC filters using the PUNLMS algorithm as a function of Q. The numbers have been computed for K=257, R=5 and L=20 and have been plotted as a percentage of the effort required for full filter updateBack to article page