Publikacje Kozłowski Piotr Z., Dobrucki Andrzej: The Comparison between Subjective and Objective, Perceptual Based Evaluation of Compressed Speech and Audio Signals. International Congress on Acoustics ICA 2004, pp. II-1811-1814, Kyoto, April 2-9, 2004. Kozłowski Piotr Z., Dobrucki Andrzej: Proposed Changes to the Methods of Objective, Perceptual based Evaluation of Compressed Speech and Audio Signals. 116th Convention of the Audio Engineering Society, preprint 6085, pp. 6, Berlin, May 8-11, 2004. Kozłowski Piotr Z., Dobrucki Andrzej B.: Adjustment of the Parameters Proposed for the Objective, Perceptual Based Evaluation methods of Compressed Speech and Audio Signals. 117th Convention of the Audio Engineering Society, preprint 6286 pp. 9, San Francisco, October 28-31, 2004. Kozłowski Piotr Z., Dobrucki Andrzej B.: Tuning of the Objective, Perceptual Based Evaluation Methods of Compressed Speech and Audio Signals. 118th Convention of the Audio Engineering Society, preprint 6464 pp. 9, Barcelona, may 28-31, 2005. Kozłowski Piotr Z., Dziechciński Paweł, Grządziel Wojciech: New Trends in Sound Reinforcement Systems Based on Digital Technology. 123rd Conventionof the Audio Engineering Society, preprint 7213 pp.