John Sayers' Recording Studio Design Forum Archive

Hi,

I'm new to the forum and building acoustic panels for a 14.74' X 13.12'
room which is both control and live room, so I 'll try to tame the reflecting frequencies and cancel standing waves.
I 'd like to keep some liveness to it so that it's a good sounding tracking room, but well balanced so that I can mix in it.
The ceiling is on a slope going up from the mixing position.
The floor is oiled wood and the walls are plaster boards with some windows on two walls (for wich I'll have curtains).

Here's the plan;

I've bought 8 panels of mineral 2" thick wool and wood bats to build frames for the panels. I'll then cover them with fabric and they will be covered at the back with a panel of 3mm cheap board.
I have 3 questions;

1- Should I fix them flat against the sidewalls, or should they be slightly
tilted off the wall?

2- Because of the reflecting material at the back of my panels,
shouldn't they be flat against the walls?

3- If I put some in the corners, I believe the space in the corner behind
the panel could act as a resonating chamber, so should I use a
different design for the corners?

Hope anyone can answer these questions,
Thanks a lot,

Jean

Don't use a backing. If you do, you will be throwing away useful absorption.

Space the panels off the wall by a few inches if you can as you will get better low frequency performance.

David (or anyone),
What is the difference in thought between the design with a back (like shown in Rod's book) and the backless (like the Real Traps)?

Snyderman

PS your cloud design is sweet. Couldn't find the aluminum gutter material when I went to Lowes recently.
Should I look anyplace special?

Putting a thick back on a panel is not a good idea; you merely give up the absorption that could be gined with an airspace.

Sorry you couldn't find that material. I still don't know what to call it. Perhaps if you printed my picture and brought it in they could help you find it.