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Loudness matching multichannel audio programme material with listeners and predictive models

Francombe, J, Brookes, TS, Mason, R and Melchior, F (2015) Loudness matching multichannel audio programme material with listeners and predictive models In: 139th International AES Convention, 2015-10-29 - 2015-11-01, New York, USA.

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Abstract

Loudness measurements are often necessary in psychoacoustic research and legally required in broadcasting. However, existing loudness models have not been widely tested with new multichannel audio systems. A trained listening panel used the method of adjustment to balance the loudnesses of eight reproduction methods: low-quality mono, mono, stereo, 5-channel, 9-channel, 22-channel, ambisonic cuboid, and headphones. Seven programme items were used, including music, sport, and a lm soundtrack. The results were used to test loudness models including simple energy-based metrics, variants of ITU-R BS.1770, and complex psychoacoustically motivated models. The mean differences between the perceptual results and model predictions were statistically insignificant for all but the simplest model. However, some weaknesses in the model predictions were highlighted.

Item Type: Conference or Workshop Item (Conference Paper)
Subjects : Media
Divisions : Faculty of Arts and Social Sciences > School of Arts
Authors :
AuthorsEmailORCID
Francombe, JUNSPECIFIEDUNSPECIFIED
Brookes, TSUNSPECIFIEDUNSPECIFIED
Mason, RUNSPECIFIEDUNSPECIFIED
Melchior, FUNSPECIFIEDUNSPECIFIED
Date : 23 October 2015
Funders : EPSRC
Grant Title : EPSRC Programme Grant S3A: Future Spatial Audio for an Immersive Listener Experience at Home
Copyright Disclaimer : This paper is available in the AES E-Library (http://www.aes.org/e-lib) 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.
Uncontrolled Keywords : Spatial Audio
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 09 Aug 2016 14:48
Last Modified : 12 Aug 2016 12:07
URI: http://epubs.surrey.ac.uk/id/eprint/811645

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