@conference {Prelcic97c, title = {New Improvements in ARCO}, booktitle = {Audio Engineering Society Convention (AES Convention)}, year = {1997}, note = {Preprint 4419 (C-6)}, month = {March}, address = {Munich, Germany}, author = {Antonio S. Pena and Nuria Gonz{\'a}lez-Prelcic and Carlos Serantes} }