Audio Options & more
 

Graal 4 does not have any option that I have seen to tell the program to use which one of my soundcards that I have.

There is an option like that for the input with microphone/input, though its never used because UDP is bugged up enough that it really doesnt work at all simply because of the broadbanded players have a router/firewall that blocks it. Not to mention the fact that the average player has no skills with networking other then just the simple basics. I might suggest having the client connect to a sort of server that is controled by the NPC server or something like that, kind of like AIM. Right now its direct connect client-client. I have found certain peoples IP addresses with your MIC/UDP people with a network packet logger.