[ed bridge/bridgekaldromusic.com]

I have a recording studio located on the second floor of a building
next to a busy highway. On top of that, the space downstairs is
available for rent and I don't want to disturb any possible tenants.
In the isolation room dedicated to drums there is sound from the
street outside, and any noise from above can be heard below. I am
looking for a way to soundproof the entire room (which is a sort of
crazy triangular shape ) while keeping costs down. The main goal is
to keep any sound from going downstairs.

I have looked at building a drum platform (http://www.imjohn.com/
DrumFloor/index.htm), but this would have to fit the entire room to be
effective, correct?

I have access to a lot of carpeting remnants, so could I lay multiple
layers of that with plywood on top?

Any suggestions would be great. Thanks.

Ed Bridge