like I tried to explain, I'm not needing it to sound proof, all I need is to make the room balanced, I don't mind if I hear people from outside or people hear me from outside, because I'll most likely be recording when few to no people are home. My ONLY goal is to make it sound good, not soundproof. And the room is already almost soundproof because it has a concrete floor and that abosrbs a lot of sound, but that concrete also creates a very bright annoying echoey sound, so with foam on the wall and carpet on the floor it will balance it out for the clearest and most pleasing sound possible.