If we knew the sound bug could be fixed! (Relic believe the sound bug occurs when the screen is being scrolled rapidly and anecdotal evidence from players supports this. When trying to fix the bug they added camera tracking to replays to try and establish if this link was correct.However the sound bug refused to play ball and show up in replays with the same camera movements as the live games in which it occured so back to the drawing board...)
Soundbug in this patch http://www.twitch.tv/helpinghans/v/6534451?t=44m25s