Some effects of orchestra shells

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Journal titleJournal of the Acoustical Society of America
Pages889898; # of pages: 10
AbstractThis paper presents room acoustic measurements of the effects of adding or modifying an orchestrashell in several halls. The average effects, at audience seats, of adding an orchestra shell in threelarge multipurpose halls were small but within predicted ranges. At mid- and high frequencies,partial shells produced intermediate results. However, at lower frequencies more complex effectswere observed, because the addition of an orchestra shell modified the grazing incidence seat dipattenuation. 'These effects depended on the geometry of the shell and on the receiver position in thehall. On-stage measurements of support were increased by approximately 5 dB with the addition ofan orchestra shell. Although orchestra shells had much larger effects on-stage, they were also foundto produce significant audible effects at audience seats.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number39036
NPARC number20375412
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Record identifierd866ed14-705d-45d1-ac47-322bc52420b6
Record created2012-07-23
Record modified2016-05-09
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