I am wanting to add a vocal booth to my studio room located in the basement and i was thinking of using the 2 concrete walls and just covering them with foam, auralex, etc as part of the vocal booth. The other two walls would be made out of wood studs, sheetrock, etc. The area is only 3'2" wide X 6' long X 7' high. I can make it smaller if need be, but can i have a great vocal booth in that kind of space? If not, what would be the best measurements to have? If this is confusing, i can definetly explain more and send pictures. The control room is 15'7 x 10' and all of the ceilings are 7' high. I desperately need help, and the more i read, the more confused i get. ANY help would be greatly appreciated!!!