[Rhodri Harris]

Care to elaborate? I already have Perian and am aware it allows quicktime to “understand” ac3s. Is that the extent to why I need it?

[Rhodri Harris]

Thankyou for your helpful and informative post. It is something i’d considered doing, though only as a last resort – basically importing the ac3 into fcp, unlinking all the channels then exporting them individually as aiffs. Is that what you’re saying?

Though I have no idea what Pop-2 is :p

I’ll certainly look into the Quicktime method though! 😀

I had hoped for a program that’d automate it all. Had you heard of mac3dec, by any chance? I was hoping someone here would know of an alternative that works under snow leopard 🙂

[Rhodri Harris]

Hi I’m in Mpeg Streamclip now and can’t find that option?

Also only 4 of the channels would be in stereo pairs. The centre channel and the low frequency effects channel are always single unlinked channels.

This is getting quite frustrating now, as they’re obviously able to be seperated (I can do it in a second in windows). The only program anyone ever talks about that’s able to do this is mac3dec, and it doesn’t work. It’s also a feature in quicktime pro……but that won’t work either.

Someone please help 🙁

[Rhodri Harris]

Ok I think people have their wires crossed here. Mpeg Streamclip can only output stereo audio or demux the VOB file to an ac3 and m2v.

The ac3 is unchanged. VOB is just a wrapper for those 2 files.

What I want to know is what programs can deal with splitting the ac3 file into 6 channels.

Mpeg streamclip has nothing to do with any of this…It’s already done its job in demuxing the file in the first place. I have already demuxed. I want to DECODE the ac3.

[Rhodri Harris]

I’ve already done the demuxing with mpeg streamclip…..what I need to do is seperate the resulting ac3 into 6 mono channels (the ones that make it up)

i.e. l, r, lfe, c…etc

For doing that, there used to be a program called mac3dec which would decode the ac3 into its seperate streams and save each stream as an individual aiff. However this program no longer works in snow leopard.

And as I said earlier, Quicktime has the capability but comes up with the error qtKitErrorCatchAll (-1309)

Hope I’ve been a bit clearer this time. The file has been demuxed from the VOB, so all 6 channels are intact within it.

Hope someone can help. 🙁

[Rhodri Harris]

The dvd was burnt with 5.1 surround sound, and the ac3 IS 6 track. On a PC I’d be putting it through Hypercube transcoder to seperate the 6 discrete tracks into 6 mono wav files (have done so before), however I’m on a mac nowadays.

I don’t know where you’re coming from saying that DVDs only have stereo sound – why would people have surround systems if that were the case? :-p
And as I said, I’ve ripped 6 discrete tracks from dvds with 5.1 surround sound before. But only on windows.