Studio material help?

[threesymbol]

I have been thinking about building my studio using cinder blocks to surround the sound and control room. On the inside glueing gypsum board and the avoutic treating the rooms. What draw backs can I expect from the hollow concrete constuction? And If I left as section of the wall exposed behind the drum riser with the rough side of the cinder blocks showing, what benifit would that have on the sound? I have seen studios with brinks behind the drum riser and I am wondering if that is desirable for the drums?

[Ethan Winer]

Brick gives more sound isolation between rooms, but makes the sound worse inside the room by reflecting more and to a lower frequency. If sound and thermal isolation were not an issue, the best walls would be made of cardboard. That lets bass pass through to the outside, but reflects mids and highs so it's still a room. Unless you need brick for isolation, or like the look, you're better off using normal drywall construction.

--Ethan