I'm trying to tame the acoustic "liveness" of my basement home theater: area rug, DIY wall treatments, etc. I wonder if there's some way to quantifiably measure the improvments I'm gaining by all this. i.e., some sort of relatively inexpensive instrumentation that will verify that I am indeed accomplishing the acoustic goals I set out to achieve. I know I should just be happy if "it sounds better," but I need some scientific evidence that my modifications are effective. Does anyone know if I can get what I think I'm looking for?