My last created video that shows physics based sound:
http://vimeo.com/28902192
implemented interesting bullet connected, physics things:
- real-time destruction
 - physical sound
 - forcefields
 - networking physics (working, but not used for now)
 - physics/graphics editor
 
http://szamq.wordpress.com/
Feel free to comment, also if you are interested in something, you can ask