Acoustical renovation of the Orpheum, Vancouver. I. Measurements prior to renovation
Keywords:Acoustic noise, Acoustic waves, Acoustics, Acoustoelectric effects, Acoustical renovation, Sound levels
AbstractThis paper reports measurements and analyses of acoustical conditions in The Orpheum, the home of the Vancouver Symphony. These measurements were made prior to renovations to the hall and were an integral part of designing those renovations. The measurements were derived from impulse responses both on-stage and at audience seats in the hall and for several configurations of the hall. Average values of several common room acoustics parameters are compared to the range of values from other halls. Measurements of conditions on-stage indicate conditions were in the range of normally accepted values. The variation with distance of sound levels and decay times is seen to be different at locations under the balcony than on the balcony. The existing over-stage reflectors were found to be useful on-stage. The large balcony overhang leads to reduced late arriving sound levels at seats under the balcony.
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