Measurements of sound absorption by seated orchestra in scale models

摘要

The effect of sound absorption by a seated orchestra in the audience area was measured theaudience acoustics in scale models. With a consideration of the surface areas of orchestralinstruments, 1:10 scale model musicians were made, and the absorption of the models wasmeasured in a reverberation chamber. The effect of the scale model orchestra onauditorium acoustics was investigated for different shapes of the concert hall andcompared with empty stage conditions. Reverberation time was found to decrease by about0.1 s and the sound strength was also reduced by about 1 dB. A box-type simulation modelof orchestra players with a scattering coefficient of 0.6 and a transparency of 0.7 wassuggested by the results of measurements taken using scale models and simulations.