Concert Hall Acoustics—2008
A comprehensive review of concert hall acoustics shows a clear relationship between measurements and perceived quality among listeners, conductors, and musicians. While the basic Sabine and Eyring equations are still important for determining reverberation times, there are other measures that are also important. These include rise and decay of sound energy, early decay at mid-frequencies, lateral fraction, binaural quality index, perceived loudness, listener envelopment, and others. These measures must be connected to the subjective ratings of concert halls that have been accumulated over the years. The principles are illustrated with case studies that compare the shoebox shape to the surround design.
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