Sounds on ships...
 

How would you add a sound to a ship that is independent from its speed? I'm trying to add the "ear candy" sound of acoustic minesweepers to the Sperrbrechers. I suspect my failures up to now have something to do with the "Label" (eg. shipwake, mix, engine) definition in a dsd file. Is there some database in the game files dictating what they do? Can I make a new label with no ill effects?