So I had a friend over to watch a DVD on Sat night and although we stopped watching the movie around midnight, we ended up talking (quietly) until around 4am.
My aggressive and highly volatile next door neighbour left a pretty rude note the next day complaining about the noise - apparently he could hear every word! - our duplex shares a (brick) party wall and has floor boards which I assume are shared across the two units.
Anyone have simple suggestions on how I can stop the transfer of my noise into his place? Would acoustic panels work, or are they only for improving the acoustics inside a room?
EDIT: Cheers for all the info folks, lots of good stuff to follow-up on. Man I love this site! You all rock! (but quietly, and not past midnight) :)
Change the Apartment. Simple