I am looking for a simple adaptive echo cancellation algorithm for a project I'm working on. Does anybody know of one under a GPL-compatible license? Preferably optimized for real time use? This might be found in a VoIP application, although I want it for musical purposes. I couldn't find anything at freshmeat.net. Then again, I can never find anything on that site. Regards, Mark markrages(a)mlug.missouri.edu -- To invent, you need a good imagination and a pile of junk. -Thomas Edison