Salem Oregon conference center studio, phase 2

[Guit-picker]

I appended an update to an old post on April 26 with several questions on the Studio Construction forum, but got no replies. I am still a bit unsure whether it is because I am supposed to start a new post or whether I'm leaving something out. Please let me know if I have. I decided to re-post here, in the Studio Design forum with hopes to get some of your valuable advice:

Well after delays, I’ve finally gotten most of the outer mass done. The two layers of ceiling drywall are up. Just about everything is sealed with OSI-SC175. I’ve got 46 bales of Roxul Save N Sound ready.

Ceiling_done_resized.jpg

It’s time to start honing in the inner wall layout. Here is what I’ve been working on for the last three years.

Floorplan_Forum_Submittal_A_reduced.jpg

The building is perfectly square to start with – 24’ from interior studs to studs.
The ceiling is slanted on the North and South ends. The inner ceiling will be 6’ 9 3/16” on those edges.
The inner ceiling in the sound rooms will reach 9’ 3 ¼”
The inner ceiling in the control room is planned to be 8’.
I am considering using the space above the ctrl room for some of the fresh air venting. It looks like the best place, if not the only place, to make room for it.
The rooms are symmetrical, but the ceilings are not.
The green areas are the start of the plan for acoustics – mostly bass traps, but probably some resonant panels on the sides of the control room? The green area in the front of the control room is bass traps situated above and below the windows.
The green around the monitors are planned to be soffits per the lengthy discussions on this forum.
The control room ratio is based on the L. W. Sepmeyer ratio in Gervais’ book. That’s where my greatest concern is at this time. Although I was aiming for a ratio of H/W/L = 8’/9.12’/11.2’, I realize that it is based on a rectangular room and mine isn’t. I tried to average out the width and in all of this I have some questions:

Am I on the right track with the cntrl room side wall angles?
When measuring for ratio, is it done from drywall to drywall or from finished surface (i.e. acoustic panels, bass traps, etc)?
Would I be smarter to raise the control room ceiling enough for a cloud? If so, how much additional room to allow for a cloud?

Another question that is nagging at me is the floors. I plan to have a separate floor for each of the four rooms. I am thinking of laying 2x4 flat on their sides and put sheeting on that. I would like to run channels under the floor for signal wiring between rooms (and insulation, of course). Is it better to place the walls directly on the concrete and build the floors in between the walls, or mount the walls on the edges of the floors?

Thanks for your inputs. The excitement is growing!
-Ron

[Guit-picker]

Not getting any replies. Sure would be nice to get some help here. Respectfully asking for help please. Did I leave anything out?

[Soundman2020]

I replied on your other thread...

- Stuart -