a. Overlap-Add Block Convolution Method § above methods are not feasible in infinitive or extremely long applications § divide the long input into contiguous non-overlapping blocks of manageable length, say L samples § y0 =  h*x0 § y1 =  h*x1 § y2 =  h*x2 Thus the resulting block y0 starts at absolute time n = 0 block y1 starts at n = L, and so on. The last M samples of each output block will overlap with the first M outputs of the next block .