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Chamber musicians’ acoustic impressions of auditorium stages: relation to spatial distribution of early reflections and other parameters

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Panton, L, Yadav, M, Cabrera, D and Holloway, D ORCID: 0000-0001-9537-2744 2019 , 'Chamber musicians’ acoustic impressions of auditorium stages: relation to spatial distribution of early reflections and other parameters' , Journal of the Acoustical Society of America, vol. 145, no. 6 , pp. 3715-3726 , doi: 10.1121/1.5111748.

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Abstract

Characterizing stage acoustics using objective parameters has seen some recent resurgence—several studies have noted the importance of the directionality of early stage reflections to musicians, which is not adequately represented using existing omnidirectional stage-support parameters. This study examines the subjective impressions of 19 chamber musicians against omnidirectional [reverberation time, early and late support (STEarly, STLate), etc.], and proposed spatially-defined parameters (TH and TS), along with simple ratios of stage dimensions derived from measurements on eight purpose-built stages. TH is a ratio of early energy from “above” to that from the “horizontal,” while TS relates energy from above to that from the “sides” of the stage. Robust mixed-effects analyses showed that the musicians' overall acoustic impression ratings are predicted (i) by TH within a linear model; (ii) by TH × STEarly, TH × STLate, and TS × STEarly, TS × STLate; (iii) by STEarly, STLate each within parabolic models; and (iv) by several architectural parameters' linear and parabolic models. These findings reinforce recent studies of spatially-defined parameters to more fully account for the subtleties of onstage sound fields. Some simple design recommendations are presented, although future studies are needed to confirm these findings/recommendations for a wider range of auditorium stages.

Item Type: Article
Authors/Creators:Panton, L and Yadav, M and Cabrera, D and Holloway, D
Keywords: stage acoustics, ambisonics, auditorium acoustics, orchestra, lateral reflections, early reflections
Journal or Publication Title: Journal of the Acoustical Society of America
Publisher: Acoustical Soc Amer Amer Inst Physics
ISSN: 0001-4966
DOI / ID Number: 10.1121/1.5111748
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© 2019 Acoustical Society of America.

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