I am about to start my second home theater and wanted to get some information before we started framing. The room is in the center of our basement and two of the four walls are concrete. The two normal walls and ceilings will be filled with insulation to dampen to sound going to the rest of the house. My question is should I insulate the walls we are framing next to the concrete? If I don't, I don't think sound from the room will be an issue, but I worry about the sound treatment in the room since two walls will be different. I have heard that insulation in the walls has nothing to do with the sound treatment in the room, but I wanted to check before starting. Thanks.