HELP ME ACOUSTIC TREAT MY MIXING ROOM w/ Pics!!!!

HI! I need to treat my mixing room. Room is pretty ruff but it will do the job. It needs alot of work! Room has got a general springy acoustic sound. I have done a lot of research and talked to some friends with experience. I understand the general rules of acoustic treatment in a nut shell. Space is about 13x8x8. We did our poor mans vocal booth in the closet and it turned out really good. We use 4 large sleeping bags and connected them onto hooks on each wall and covered them with window curtains. I could not believe how well this came out considering I have been in many booths that were treated professionally. We put Auralex wedges up top and bass traps in the upper corners (not shown) I got this method from this video http://www.youtube.com/watch?v=np-dyi0wWRQ As for the mixing room, I want to get as many opinions as I know a lot of you are professionals (an awesome free resource and appreciated!) I am aware of the mirror trick. I have a good idea on the main areas to focus treatment on. The ceilings Im not to sure about? We have about 15 of the aurlex pyramids and I still need to buy more bass traps. I can buy more pyramids or wedges. Basically any input would be helpful and much help! If you want to be specific or general or anything at this point I'm all ears/eyes. Thank you in advance HC!!!!!:) Here are the pics of my space. http://www.flickr.com/photos/rarryrison/sets/72157625774362918/detail/ If I'm up for it I may want to paint it, hasn't bothered me. The big section to the left where it looked liked a big chunk came out of the wall used to be the window looking into the next room. A long time ago before it was painted red that room was a mixing room so I suppose it has got a good history to it. If your wondering this a rehearsal lockout I have been in for three years in west LA. My room is one of two rooms on the second floor. So its pretty quite most of the time. Until now it has served as my jam/songwriting room. thanks!

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Ok. Done :)

it sounds like you've been reading up so you have an idea about the first reflection points, trapping your corners, etc depending on what you have going on above the drop ceiling, you might just need a small rigid insulation cloud hung overhead. you might want to add a layer of rigid insulation above the ceiling tiles to provide more bass trapping. behind you, you might want a couple of absorbers on stands to block off some reflections from the live area.

Glenn thanks! When you say rigid insulation is that rockwool,Fiberglass, etc?also in your experience is 2" auralex panels like mine enough for absorption? Can i double up on these if not? Lastly I did some measuring and my first reflections is at that door way with the black sheet. Do I need to move things so that my reflections is on a wall to absorb it? I'm using Ethan Winers 38% guide by the way. Thanks brotha!

the 38% position is the starting point (might be the end point) so feel free to move it back and forth to identify the best location for listening. depending on the frequencies, the 2" Auralex could suffice. you could try it and see if it works and if not, then build some deeper (4") rigid insulation absorbers.

thanks. how does that work when you use the back 38%? Are the speaker being brought back as well and facing the back still. or is it kind of like turning the back of the room into the "front" of the room?

positioning the speakers will also usually require some experimenting as there are differences in the response due to front and side wall proximity plus floor or ceiling proximity. most monopole speakers should begin with being placed just a bit off the front wall (say 2") , about 70% of the room width apart or about 6'-8' max and angled to form a 60° triangle with the listening position which starts around 38% of the front-to-back length. basically a triangle with 6'-8' per leg. adjust these to accommodate your room, stands, desk, and the initial seating position.

can I double up on the 2-inch foam? does that work?

you can try doubling it up. try to make use of what you have. not sure what effect it will have though compared to an full depth absorber using rigid insulation.

Thanks glenn you've been a lot of help. So I decided if Im going to acoustic treat my room, I need to spend the extra cash and do it the right way.......

Update: OK so I picked up 2 Boxes of OC703, in total I have 24 sheets 2x4 2-inch. So, my plans are. Vocal Booth: To completely get rid of all the blankets in the vocal booth/closet.(waste of time) -Auralex foam on two sides and on top of the booth. -2-inch pyramids on each side/4-inch wedges on top. -2x4 6-inch rigid fiberglass bass trap on the third wall. Concern: The door way into the booth is completely exposed. I have been covering it with a heavy sleeping bag inside a black window curtain for acoustics/aesthetics. How should I treat the doorway? Free standing Panel 2x4 2-inch rigid fiberglass to move in front when recording/and mixing? Mixing room: -2x4 6-inch bass traps in all 4 upper corners. -2x4 2-inch on side walls,front/back wall,hanging cloud. Concern: Again the exposed door into vocal booth? Reflection from the two back PA speakers on stands? or diffusion... Dropped ceiling need to be treated? Besides the hanging cloud over listening point. I plan on making all my panels and bass traps without a wooden frame. Just covering it with porous materials. There are tons of different ways I have found that look easy and great. Seems like oc703 is rigid enough to maintain a nice boxy shape without a frame. If I'm correct, besides aesthetics/providing extra support and durability, frames have no acoustical benefits. Rough(very) sketch of the floor plans: http://www.flickr.com/photos/rarryrison/5356573360/sizes/l/in/set-72157625701193233/ Pics of my space. http://www.flickr.com/photos/rarryrison/sets/72157625774362918/detail/ I am all ears/eyes to any suggestions. Be brutally honest if you must! thanks!