How can I split the 5.1 audio channels from an AC3 file into individuals streams (preferably on a Mac)?

Question

I have a file that I've pulled from a DVD that is apparently in AC3 5.1 format. The extension is .AC3 and it opens an plays in QuickTime, VLC etc.

What I want is each individual channel in a separate file, but I can't seem to find any tools that will allow be to do that.

Is there a way to split the file I have, or alternatively is there a way to pull the audio streams from a 5.1 DVD?

Answer 1

Audacity has an Export Multiple feature that does exactly that.