An original method to reconstruct electron and pion signals in the Liquid ARGon barrel calorimeter (LARG) is applied to test beam data collected at the H8 line of the CERN North Area in July and August 2000. The method is based on the use of optimal filtering coefficients and takes into account the electrical description of the read-out electronics in the reconstruction of the physics pulses. Results on improvements in the LARG response and in particular on the energy uniformity of the calorimeter are shown
