The NTAV/SPA 2012 conference was held on 27–29th September 2012 and was organized by the Institute of Electronics, Lodz University of Technology (www.eletel.p.lodz.pl) with the support of the IEEE Polish Section Region 8, Polish Section of the Audio Engineering Society, Department of Acoustics, Wroclaw University of Technology and the Division of Signal Processing and Electronic Systems, Poznan University of Technology.