I looked into this...it seems you need 2" thickness to really do any good. Another option might be a wooden box array....looks kind of modern and you can stain the wood in a nice colour. Perhaps you could even put a few nik-nacks in it.
Another option is to go for some custom crown molding. The local machinist here has a computer model with some acoustic diffusion/absorption designs (most often used for commerical buildings like courts and theaters). The machine shop can run nice oak, maple or whatever wood you like (even melamine) through the computer lathe and cut you strips of elegant and beautfiul wood that you could then use to panel the walls - it could be stained to match the wood on the floor.
Another option is to go for some custom crown molding. The local machinist here has a computer model with some acoustic diffusion/absorption designs (most often used for commerical buildings like courts and theaters). The machine shop can run nice oak, maple or whatever wood you like (even melamine) through the computer lathe and cut you strips of elegant and beautfiul wood that you could then use to panel the walls - it could be stained to match the wood on the floor.