[undermind]

I am doing a fairly basic treatment of a mix room and tracking room for a friend wanting to do some fairly basic recording at his facility where they do music lessons and such..

The tracking room is large, roughly 420 sq ft, and the mix room is roughly 170 sq ft. Both rooms have a lot of windows; most of which are indoor windows into hallways. I would estimated a 75% wall to 25% window ratio. The walls are all made of 100% drywall, and there is no treatment done at this point.

I've been poking around the studio building / acoustics forum for awhile now. I realize that the room needs to be tested for very specific needs, but I'm hoping to get an idea of where I'm gonna be headed with this project. I'm a little overwhelmed by all of the different treatments. What I would like to accomplish is kill a lot of the liveliness of both rooms, first off. As I see it now, I am thinking that I will build a bunch of panels consisting of fabric glued over rigid fiberglass or rockwool. These I can hang all over both rooms. I will have several clouds in the live room, and focus on basic reflection points in the mix room to start out.

Where I'm a little confused is whether there is a need for additional items like broadband absorbers. Are these better bang for the buck in terms of killing the liveliness of a room in comparison to other materials? I would also like to build moveable panels as to create basic "rooms within rooms", but I have not seen a lot of ideas for building them. All of these things will be the DIY approach.

I expect to get the "you don't just go all willy nilly" responses. But I'm just trying to form a very GENERAL idea of what direction I should be headed as I begin to think about what I should be buying and building.

Thanks!