Okay, so I've loaded a sound as a QTMovie instance and I've played it. What I'd like to do is periodically check the current volume level so that I can put it into (a single) NSLevelInidcator, similar to the two which reside in GarageBand. I've been looking for some method's to do this for ages, but haven't found anything which relates to what I'm after. Is there a way for me to check how "loud" a QTMovie instance is playing at a particular moment? Thanks!