Home made absorption panels.....

Tvad - Thanks for an excellent, cost effective idea.

Glitch, a couple months ago I took down my wall mounted bookcases so my friend could paint the walls for me while I was at work. I was shocked how much echo there was without them on the walls.

You're welcome Classical1. I'd upload a photo if I could figure out how.

I think the bookcase solution works really well, but from a diffusion standpoint rather than an absorption standpoint. This may be semantics, but there is a difference in the principles at work, IMO.

Bottom line, if echo is reduced, then the method works.

I did the exact thing Tvad suggested and covered the panels with a natural white needled cotton fabric at Wallmart, works good and looks good also.

My solution was similar to Tvad's but I used a heavy cotton cloth which my grandson and I painted. It was a nice project for him. We spent an entire day buying the material, building and then painting the panels. They have his signature.