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In collaboration with colleagues Brian Katz and Eckhard Kahle, Bob Essert contributed more data to the science of absorption in acoustics.
Measured Effects of Absorption Location, Receiver Position, and Source Direction on Reverberation
“While general rules of thumb are used to predict the effects of absorption areas, few studies have been done of the effect of absorption location within the hall.”
Acoustic variability of multi-purpose halls is important in an age where events and performances ranging from classical orchestra to speech are programmed in the same space. Variable absorption is the most commonly used method to achieve variability of the acoustical quality of the room. While general rules of thumb are used to predict the effects of absorption areas, few studies have been done on the effect of absorption location within the hall.
This study examines the effects of three different factors on the reverberation time of a particular performing arts hall: receiver location, source directivity, and absorption location. The selected hall for this study is the Auditorium de Dijon, France.
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