by Wikibooks, open books for an open world
Available in 123 free installments
Owner:
For rooms of high volume or with a complex geometry, the theory of acoustical geometry is critical and can be applied. The waves are modelised with rays carrying acoustical energy. This energy decrease with the reflection of the rays on the walls of the room. The reason of this phenomenon is the absorption of the walls.
The problem is this theory needs a very high power of calculation and that is why the theory of Sabine is often chosen because it is easier.