Just moved into a new house. Theater room is small, about 11' x 13.5'. It was wood paneled, but I've torn that off. No insulation behind it. The plan was to insulate and drywall. I was going to recruit a friend and do it ourselves. But we've never done it before, don't have drywall screwguns, and would probably need to rent a hoist to put 5/8" (70+lb) sheets on the ceiling. There is also a weird area by the door with some kooky angles where the stairs go up and partially through the room that looks tricky to do. My lowest estimate to have someone else do it was $800 and that's not including materials.
So now I'm wondering if there are alternatives. I'm going to cover the walls, ceiling, and floor with black felt and black velvet, so the look of the walls is a non-issue. It's just me and my wife here, and 90% of the time we'll be watching movies together, so soundproofing is essentially a non-issue as well.
Is there any reason not to just put in insulation -- more to improve the sound of the room rather than soundproof it -- and staple the velvet and felt right to the studs?