
Architectural acoustics (also known as room acoustics and building acoustics) is the science and engineering of achieving a good sound within a building and is a branch of acoustical engineering. The first application of modern scientific methods to architectural acoustics was carried out by Wallace Sabine in the Fogg Museum lecture room who then ...
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http://en.wikipedia.org/wiki/Architectural_acoustics

(from the article `acoustics`) Architectural acousticsMost sound-absorbing materials are nonlinear, in that they do not absorb the same fraction of acoustic waves of all frequencies. In architectural ... ...into each other and the words will be mumbled confusion. If, on the other hand, the reverberation period is too brief in a room whe...
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http://www.britannica.com/eb/a-z/a/96
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