resonating wood behind the foam?

[Ethan Winer]

Originally Posted by bozmillar

Here's a picture of the room I'll be using:

Nice!

do you have to add more or less low frequency absorption when you have a small room that opens up into a large room?

The goal for all recording and mixing rooms is to have a more or less uniform decay time over the full range of frequencies. The only way to know for sure what a room needs is to measure it. But generally speaking, the preferred treatment plan is broadband absorption that absorbs well down to at least 100 Hz. So that implies thick absorbers everywhere.

--Ethan