This document presents further results of continuation of 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 published methods for evaluation of the quality of perceptual coded audio signals. Protocols: PAQM, PSQM, NMR, PEAQ, PESQ have been implemented. 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 protocols published earlier. Authors proposed in previous works how to improve objective protocols e.g. by changing pitch scale. Suggested adjustment of internal parameters of signal processing, which improves results of objective evaluation, is presented. The criterion of optimization is the difference between results of subjective and objective evaluation.

Authors: Dobrucki, Andrzej; Kozlowski, Piotr
Affiliation: Wroclaw University of Technology, Institute of Telecommunications and Acoustics, Department of Acoustics, Wroclaw, Lower Silesia,Poland
AES Convention: 117 (October 2004) Paper Number: 6286
Publication Date: October 1, 2004
Session Subject: Psychoacoustics, Perception, and Listening Tests; Spatial Perception and Processing

Click to purchase paper as a non-member or you can login as an AES member to see more options.

No AES members have commented on this paper yet.

Subscribe to this discussion

To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this paper and are an AES member then you can login here:
Username:
Password:

If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.