Objective evaluation of a three-dimensional sound field reproduction system

Nicolas Epain*, Pierre Guillon, Alan Kan, Roman Kosobrodov, David Sun, Craig Jin, André Van Schaik

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

15 Citations (Scopus)

Abstract

We present the results of an empirical evaluation of a three-dimensional sound field reproduction system consisting of 32 loudspeakers installed in a hemi-anechoic room at the University of Sydney. This loudspeaker arrangement allows up to third-order, two-dimensional, and fourth-order, three-dimensional Higher Order Ambisonic (HOA) reproduction of sound fields. The ability of this system to recreate a known sound field at the ears of a listener is evaluated using measurements with an acoustic manikin in the optimal listening position. In particular, we compare the Interaural Time Delay (ITD) and the Interaural Level Difference (ILD) generated by HOA for different sound source angles against reference values measured in an anechoic room. In addition, the influence of a listener's position on the quality of the reproduction is investigated based on measurements performed for different positions of the manikin around the "sweet spot". Copyright

Original languageEnglish
Title of host publicationProceedings of 20th International Congress on Acoustics, ICA 2010
EditorsMarion Burgess, John Davey, Charles Don, Terry McMinn
Place of PublicationSydney
PublisherInternational Congress on Acoustics (ICA)
Pages949-955
Number of pages7
Volume2
ISBN (Electronic)9781617827457
Publication statusPublished - 2010
Externally publishedYes
Event20th International Congress on Acoustics 2010, ICA 2010 - Incorporating the 2010 Annual Conference of the Australian Acoustical Society - Sydney, NSW, Australia
Duration: 23 Aug 201027 Aug 2010

Conference

Conference20th International Congress on Acoustics 2010, ICA 2010 - Incorporating the 2010 Annual Conference of the Australian Acoustical Society
CountryAustralia
CitySydney, NSW
Period23/08/1027/08/10

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