Overhead stage canopies – case studies
Invited paper
AGH University of Science and Technology
Monday 1 june, 2015, 16:00 - 16:20
0.9 Athens (118)
Abstract:
Proper transmission of the sound from the stage to the audience is one of the
main tasks of room acoustics. Very important is also to provide good acoustics
comfort on the stage by reflecting some of the acoustic energy back to the
sound source. It is possible if some reflectors properly situated near the
stage are used. The overhead stage canopies are commonly used, as their
parameters could be relatively easily controlled using simple theoretical
relations. Moreover, their position could be adapted according to the
requirements of the sound source and receivers.
In the paper, the authors analyzed three rooms where overstage canopies were
installed. All measurements were compared with simulations made in Catt-
Acoustic software and analytical calculation. Apart from ISO 3382 parameters,
also some spatial parameters were obtained using Soundfield microphone. In
Capitol Theater in Wrocław the impact of the overhead stage canopies on the
room’s acoustic parameters was analyzed. In the Łódź Philharmonic stage
parameters were measured for different height of the stage canopy. Variete
Theater was analyzed to verify the effectiveness of developed by authors wide
band canopy.
Summing up the results, it can be proved, that simulation and calculation give
values with proper accuracy with used measurement method.