Room Mode Calculator

Your room's dimensions create standing waves that make some bass notes boom and others disappear. This finds them, flags the problem spots, and rates your room ratio.

What to do about room modes

You cannot remove room modes without changing the room's size, but you can tame them: put broadband bass traps in the corners (where modal pressure is highest) and choose a listening position that avoids the strongest peaks. A good dimension ratio spreads the modes out so no single frequency dominates. Formula details are on the methodology page.