I was trying out the new snapshot to see if the issue where I was quite in stream and system sounds were even more quiet has been fixed. At least Now the sounds were fixed, but every sound would loop in the stream. My voice, my game, skype and even music from windows media player.
Here is a list to my channels past broadcasts. Look at the videos titled "Fixing sound issues?"
http://www.twitch.tv/aaartis2/profile/pastBroadcasts