Converting existing AVI file w/ stereo audio to 5.1 audio

[ssaloon]

any program to use to achieve this? preferably on OSX. TIA

[rion]

you cannot convert a stereo to a real original 5.1, but you can emulate a 5.1 using Adobe Audition tools and Surcode plugin or sonic foundry soft encode. and save them to ac3 5.1 format.

[ssaloon]

anything that'll work on a mac?

[Jun aka Pekto]

There should've been an update to iMovie HD that allows 5.1 surround sound. But, that's only if youre using raw footage. Not sure how to make use of wmv format in it though. I rarely use iMovie for video editing.

I still prefer Ulead Video Studio which is much more flexible and way better with multiple formats.

This also might help. It's something about Quicktime Pro and 5.1 codecs for it:

http://www.thismuchiknow.co.uk/?p=24

[rion]

Surcode plugin for Audition and Premier has for mac versions too. but it's not free unfortunately.