Live room treatment starting point

Hi guys. More or less finished the construction phase my first ever studio so I need to start my acoustic assesment and treatment. Problem: where do I start!??! At the moment my live room consists of a hard reflective floor, completely absorbtive (insulation covered with material) ceiling, and unfinished walls which are the usual stud type, with plasterboard on the back but with no insulation or front plasterboard/slats on as of yet.... Do I do my assesment of the room as it stands, or do I try to add my wall coverings (some slats or plasterboard etc) and then asses it...???? My general plan is to have broadband bass traps in 3 corners, and then tuned slat resonators where necesary. I intend to use the room for drums, vocals, acoustic and electric guitars......pretty much everything, so does anyone have any advice on the treatents required; ive seen that 300Hz is a preferred frequency for slat absorbers for drum rooms; would this be suitable for my room?? My room has a large window, and a door, and is small!! Hopefully the pictures below will help show the design. Thanks for your help, John

Where do you start? realtraps.com is a good place for that. They have a video on treating a control room, but you can apply the theory to treating a live room. Bass traps and broadband absorbtion and try evening out the frequency response of your room. You know what bass loves... corners, so stick bass traps there. Test your room before you start so you know where your peaks and nulls are.

Aloha and welcome to the forum, John :D Congrats on your studio build! If I may ask, what is your ceiling height? There are several calculators available to estimate what kind of axial waves and what-nots you will be needing to treat and would require all three dimensions (L x H x W) Here's a good place to start reading up on acoustics, absorbers and how to go about treating your room for them. http://www.saecollege.de/reference_material/index.html (Be sure to click on the acoustics and absorbers tabs on left and then tabs at top of pages.) Plans for absorbers: http://www.johnlsayers.com/HR/index1.htm Hope this helps, Aloha 8)