Discovered Audacity an ****** source sound editor available for Mac OSX Linux and Windows and spent some time checking out. The complete manual contain some tutorials that might provide quite useful for film producers as it also discuss how to do sound production for movies.

On the downside I’ve noticed:
- Audacity permits only one audio clip per track. It’s common that editors can only play back one audio clip per channel at a time but most of them permits several clips in sequence.
- VST plug-ins has to be copied to the Plug-ins folder. It would be neat if Audacity could check the Library/Audio/PlugIns/VST folder as well. Most programs supports this on OSX.

It still looks promissing and I’ll try it for a while.