| The amount of trapping needed depends on the amount of isolation needed. If you don't need isolation, the bass can just just be allowed to escape right through thin walls. As you increase isolation, you then need to trap the bass so the energy is dissipated and doesn't fold back on you.
Any isolated room is a weird space that needs treatment to make it less weird. I define acoustical treatment as something intended to make a room not sound like whatever it really is. |