If you have the exact same music as what is mixed with the dialogue, you can reverse phase, match the level and zero out the music that way. I haven’t matched soundtrack timings in Audition. I guess you can do it manually, not sure if there’s a way to do it automatically. In Premiere you can align with the built-in sync tracks function or with PluralEyes (commercial plugin), not sure if that is sample accurate, since audio for video doesn’t really need to be, frame accurate is enough.
Kalleheikki Kannisto
Senior Graphic Designer