There is some basic info here http://www.decware.com/newsite/mainmenu.htm
I used Auralex foam products http://www.auralex.com/in a dedicated room but they may not fit your decor. I wouldn't use them in a living area.
I used Auralex foam products http://www.auralex.com/in a dedicated room but they may not fit your decor. I wouldn't use them in a living area.