This structure isn't yet built. The pad/concrete will be 27' wide and 42' long and the stucture itself will be a free span steel frame job so my ceiling will be fairly high. The side walls will likely be 14' high to match an adjacent building also not yet built, and there will be a 312 pitch roof most likely. Within this space, roughly 27x42 less the space of the 6 or 8 inch I beams and additional insulated interiour walls, needs to be a control room, and a live room, and an 8' wide hallway running the entire long axis of the building, for additional recording space and for rolling a piano from one place to another place in the facility. The size and shape of the control room and the live room I can eaily make into rectangle floor space shapes if that would be better than square. I would find it considerably easier to use 90 degree corners and parallel walls and utilize acoustic treatments rather than build those odd angled walls. The ceiling however can be quite high, even following the roof line which will be 21' high at least at the peak on a gable end. The adjacent stuctures will have spaces for recording also, one being a reverb chamber, and another for recording large ensembles should the need arrise. Edit: And a larger ISO booth/room. And I can make the control room 19' wide and 15' deep and the live room 19' wide and perhaps 24' deep. They can vary with the space of 19'x 39' I think will be the usable space, possibly 21' wide x39' long depending on the width of the hall.
EDIT:
On another note, is that spray in foam insulation any good for acoustic isolation of adjacent rooms/spaces, double wall of course with about 4" space between?
That is the best I can offer at this time.
Thanks
AB