I am going to build out my own Theater. I have been reading exrtensively on accoustics and the how tos. I am hoping someone in this forum could answer these questions. Regarding the floating floor: I understand the reason for the floor. I also read however that it will stop sound travel from creeping up the walls and allow the base to fill the floor. In a how to site, it stated you should use isolation sway braces to attach to the top of the free floating wall to the bottom of the floor joists. It then says to srew the bottom of the free floating walls to the free floating floor. Here is my question, I thought that the reason for the floor was to ensure that the sound does not get lost to the wall?