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Proposed Changes to the Methods of Objective, Perceptual Based Evaluation of Compressed Speech and Audio Signals

This document displays research about objective methods, which use psychoacoustics knowledge for estimation of the quality of audio signals. The software written especially for this research is presented. This program allows for implementation of the different methods for evaluation of the quality of perceptual coded audio signals. Protocols: PAQM, PSQM, NMR, PEAQ, PESQ are ready to use. All of these algorithms are used for simulation of the auditory system. The software is open for addition next protocols as the plug-ins. There is a possibility to change and improve earlier protocols. Suggested changes, which improve results of objective evaluation, are presented. The criterion of optimization is a difference between results of subjective and objective evaluation tests.

Authors: Kozlowski, Piotr; Dobrucki, Andrzej
Affiliation: Wroclaw University of Technology, Institute of Telecommunications and Acoustics, Department of Acoustics, Wroclaw, Lower Silesia,Poland
AES Convention:116 (May 2004) Paper Number:6085 Import into BibTeX
Subject:Psychoacoustics, Perception, and Listening Tests

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