On the relative importance of spatial and timbral fidelities in judgments of degraded multichannel audio quality

Francis Rumsey*, Sławomir Zieliński, Rafael Kassier, Søren Bech

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

98 Citations (Scopus)

Abstract

Mean opinion score ratings of reproduced sound quality typically pool all contributing perceptual factors into a single rating of basic audio quality. In order to improve understanding of the trade-offs between selected sound quality degradations that might arise in systems for the delivery of high quality multichannel audio, it was necessary to evaluate the influence of timbral and spatial fidelity changes on basic audio quality grades. The relationship between listener ratings of degraded multichannel audio quality on one timbral and two spatial fidelity scales was exploited to predict basic audio quality ratings of the same material using a regression model. It was found that timbral fidelity ratings dominated but that spatial fidelity predicted a substantial proportion of the basic audio quality.

Original languageEnglish
JournalJournal of the Acoustical Society of America
Volume118
Issue number2
Pages (from-to)968-976
Number of pages9
ISSN0001-4966
DOIs
Publication statusPublished - 1 Aug 2005
Externally publishedYes

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