Aloha myriad,
Here's a couple more thoughts to ponder. In addition to the panels you've outlined, and due to the angle of your "side wall/ceiling" and "center section ceiling" areas around your mix position, you might want to consider putting up a few more panels (see attached.) Being that you are on the second floor, I would suggest considering the amount of weight you will be introducing to the structure.
Here's a few more bits of info I've gathered on setting up your mix position.
- monitors should not sit on the console but behind, placed on heavy decoupled stands - console placement causes early reflection problems in most cases, unless the console is slanted down in front a LOT.
- distance to wall behind speakers will change response drastically - there is a wall bounce calculator on the Acoustics forum that's fun to play with (needs Excel)
- Moving either speakers or your head by as little as an inch or two can sometimes make drastic changes in response, due to modal peaks and dips.
- Roughly 38% of the total room length from the front wall
- Equilateral triangle formed by left, right mix position
- Monitor angles 60 degrees
- Monitor height – woofer at ear level (avoid mid point of floor to ceiling measurement – either sit higher or lower if necessary)
- Angled side absorption panels – left/right of mix position
- cloud over mix position
If angling walls and ceilings:
- Side walls 6-12 degrees
- Ceiling 12 degree slope
Here's a couple of good places to start for ideas:
SAE Website:
http://www.saecollege.de/reference_material/index.html
(be sure to click on the acoustics, absorbers, construction tabs at left, and tabs that appear at the top of the pages)
Wall Units -
http://www.johnlsayers.com/HR/index1.htm
Recording Studio Design Forum Reference Area:
http://johnlsayers.com/phpBB2/viewtopic.php?t=2125
More Useful Links:
http://www.johnlsayers.com/phpBB2/viewtopic.php?t=1168
If you care to check out a couple of recent threads using these absorbers, try here:
http://johnlsayers.com/phpBB2/viewtopic ... ght=#15598 and here:
http://johnlsayers.com/phpBB2/viewtopic.php?t=4091
Hope this helps,
Aloha
