Quote Originally Posted by papaver View Post
These sheets are here rather inexpensive.

http://tinyurl.com/l3jugk
Those, and the egg-cartons are both great at reducing echo/reverb/reflection of sound waves within a room - they don't reduce the transfer of sound into a room from an adjoining wall.

BF's latest book: http://www.amazon.com/Master-Handboo...9592578&sr=8-2