So what can be done to distribute the sound evenly in every direction?
The answer is: avoid straight, parallel walls. Karen?
But I think I've seen photos of rectangular concert halls.
Right. Older concert halls from the 1800s are generally rectangular.
But they all have a lot of decorations on the walls inside, lots of ornamental plasterwork like statues, which distribute sound very efficiently, reflecting it in all different directions.
And that brings me to another variable we need to consider - the acoustic characteristics of the building materials as well as the wall and floor coverings.
In fact, most objects you see in a concert hall or theater serve double duty.
The plush chairs absorb sound and soften reverberation.
And the beautiful crystal Chandeliers?
They are very good at diffusing sound.
You see, everything must be planned down to the last detail in order to predict the acoustic performance of a room.
That being said, there's something that can't be controlled by the architect.
The audience has an effect on acoustics too.
The heads of people are good diffusers of sound.
And architects try to account for this effect in their design, but they can't guarantee a full auditorium.