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QESTRAL (Part 4): Test signals, combining metrics and the prediction of overall spatial quality

Dewhirst, M, Conetta, R, Rumsey, F, Jackson, PJB, Zielinski, S, George, S, Bech, S and Meares, D (2008) QESTRAL (Part 4): Test signals, combining metrics and the prediction of overall spatial quality In: 125th Audio Engineering Society Convention, 2008-10-02 - ?, San Francisco CA.

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The QESTRAL project has developed an artificial listener that compares the perceived quality of a spatial audio reproduction to a reference reproduction. Test signals designed to identify distortions in both the foreground and background audio streams are created for both the reference and the impaired reproduction systems. Metrics are calculated from these test signals and are then combined using a regression model to give a measure of the overall perceived spatial quality of the impaired reproduction compared to the reference reproduction. The results of the model are shown to match closely the results obtained in listening tests. Consequently, the model can be used as an alternative to listening tests when evaluating the perceived spatial quality of a given reproduction system, thus saving time and expense.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Vision Speech and Signal Processing
Authors :
Dewhirst, M
Conetta, R
Rumsey, F
Jackson, PJB
Zielinski, S
George, S
Bech, S
Meares, D
Date : 2 October 2008
Contributors :
ContributionNameEmailORCID Engineering Society,
Additional Information : The papers at this Convention have been selected on the basis of a submitted abstract and extended precis that have been peer reviewed by at least two qualified anonymous reviewers. This convention paper has been reproduced from the author’s advance manuscript, without editing, corrections, or consideration by the Review Board. The AES takes no responsibility for the contents. Additional papers may be obtained by sending request and remittance to Audio Engineering Society, 60 East 42nd Street, New York, New York 10165-2520, USA; also see All rights reserved. Reproduction of this paper, or any portion thereof, is not permitted without direct permission from the Journal of the Audio Engineering Society.
Depositing User : Symplectic Elements
Date Deposited : 27 Jun 2012 10:59
Last Modified : 31 Oct 2017 14:13

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