Noob Question- How to treat conrete brick walls

I've been lurking this forum for a while trying to research how to treat my band room. I have a very small space to work with, 14' x 9' made of 4" thick hollow concrete bricks with an 8' high ceiling.It is plain rectangular room with nothing in it (no protusions,beams,ducting etc.).The position of doorways is not a problem either. I would like to record drums & vocals in here also if possible.All the materials I see being used on the forum are available here, rock wool, gypsum board,etc,so no problem there either. Sorry for the lack of sketch,still figuring out how to use sketchup. My questions are: How should I treat my walls? What is a good layout for this room? Thanks in advance

welcome! as a general rule: super chunks in the corners for bass trapping and scattered absorption on the walls and ceiling to break up the flutter echoes and make things diffusive without making it sound dead or dull. use 2'x2'x4" (600mm x 600mm x 100mm) rigid insulation covered in cloth in a 3'x3' (900mm x 900mm) checkerboard pattern on the ceiling and using 2'x4'x4" (600mm x 1200mm x 100mm) rigid insulation absorbers on the walls - vary them slightly in height and leave opposite sides of the room untreated (stagger the arrangement). treat all the cloth to be fire retardant. you can make frames using 1x4 (19mm x 100mm) or 1x1 and some metal angles to create frames of the same size but with open sides (more work, lighter, slightly more absorption). keep the floor concrete or tile or wood. maybe some scatter rugs. if you want to get the drums or amps up off the floor, some isolation risers can be constructed using 2" rigid insulation (cover in cloth optionally) on the floor and lay on 2x 3/4" (19mm) MDF with the seams staggered. a top layer of 3/4" plywood for screwing in the drum kit hardware. this decouples the instruments from the floor pretty nicely.

Just to clarify,do I need to use any sort of inner wall system or just use the existing structure? Is this room too small to try a design like this? Small studio in 3D http://www.johnlsayers.com/phpBB2/viewtopic.php?f=1&t=5457

the decision to build an inner wall will depend on how much isolation you need. if you just need to treat the space then what i've described is a start. if you need more isolation and want an integrated approach using soffit mounted monitors and builtin trapping, angled treatments etc. then i'd suggest looking into inside-out walls as means of increasing the isolation and preserving as much space as possible - John's small studio is a good model to follow.

Thanks for the help,will post pics as I go along. I will be using John's Studio model,looks simple enough to construct.Another few questions: In using John's model, does the wood for the frames have to be 2"x4"? I'm trying to conserve what little space I have, and I have lots of 2x2's left over from another project. Can I substitute wooden doors for the sliding glass doors between the booth and the main room? I can use a webcam on the wall to see inside the booth.

if you need to build a isolation ceiling you'll need (minimum) 2x4. if you don't, then you could use 2x3 on the walls but not smaller than that.

I guess its the 2x4s then ,my roof is made of metal roofing sheets.Will definitely need to make my ceiling acoustic.Again ,I can't thank you enough.