4 channel mono export, 16 bit

[Andy Mees]

No go on the Compressor front there Tim, like the other 4 channel settings I tried, that one creates one single 4 channel audio stream … not multiple discrete single channel audio streams, which is unfortunately what XDCAM demands.

For experiments sake, I did just test an IMX export tho, and it worked a treat as long as I set up the export with 4x mono tracks. Seems the stumbling block for now re DV for possible XDCAM export is the 24-bit vs 16-bit audio discrepancy.

[Jeremy Garchow]

The only thing that stops FCPX from doing this directly is the 24bit audio.

The other way to go about it would be to dither the audio in Soundtrack Pro after you export a 4 channel DV movie like this:

4channels.png

Jeremy

[Andy Mees]

Yep … it’s just all becoming rather convoluted!

The simplest solution is just to hit the spacebar and record the baseband output from my I/O box directly into the deck 😉

Color me just a little bit annoyed that FCPX wasn’t yet quite flexible enough for me to make it work the way I wanted too (ie file based). No worries, I nearly got there.

For what it’s worth, I tried exporting my sequence as XDCAM HD too but had exactly the same problem (it needs 4 channel, 16 bit, mono audio).

If I had a different XDCAM deck, one that supported IMX or HD422, both of which support files with a 24 bit audio configuration, then none of this would have been an issue.

I’ll live.

Anyway, just let me say thanks a lot to yourself and everyone else who spent some brain cycles thinking on this one for me … it’s great COW support as always and very much appreciated.

Cheers
Andy

[T. Payton]

[Andy Mees] “it worked a treat”

Does that mean it worked?

——
T. Payton
OneCreative, Albuquerque

[Andy Mees]

Hi Tim

Yes, as long as I’m targeting an XDCAM format that’s compatible with native 24 bit audio (like IMX or HD422) then the whole export to XDCAM disc process went through without a hitch 🙂 Unfortunately not a single one of my stack of XDCAM camera’s or decks support either IMX or HD422. 🙁

Ho hum. Luckily this wasn’t a stuck between a rock and a hard place issue as I could just ask the guys to use FCP7 … or even just crash record the baseband output from an FCPX attached I/O box. I really just wanted to prove to myself that it could all be done directly from FCPX as is.

Thanks again
Andy

[Eric Sternberger]

Hi Andy,

could you please specify the exact settings that worked with XDCAM HD422 ??
Because we need to deliver XDCAM-HD-Discs with 4 Audiotracks and never managed to deliver a file out of FCPX that content exporter is capable of to write to a disc.

[Andy Mees]

Hi Eric

You need to choose the “Roles as Multitrack QuickTime Movie” export option and set it to use 8 mono channels and assign a valid Role to each of the channels. Do that and Content Browser Exporter will happily accept the XDCAM HD422 export and manage the rewrap to MXF. If you just need 4 channels then I’d be inclined to just duplicate those first 4 channels onto the second 4 channels … but if preferable you might just add a dummy “mute” audio clip to your edit with that audio assigned to a custom “Mute” role, and then patch that in the export dialog to those unwanted extra 4 tracks.

Hope it helps
Andy

[Eric Sternberger]

Tranks Andy, it Works!
But i Never Managed to burn a XDCAM-Disc with 4 channels. Though cameras Support that….
With the Content exporter, ist seems you have to have 8 channels…

[Andy Mees]

Thats great Eric, glad its working for you now.
Cheers
Andy

[Chih Fong pan]

Hi andy

So we can ignore that project propertis to select stereo or Surround?

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