[Frederico Cengarle] “so this means that if we have QT file that aleready have 5.1 mix (L, R, C, LFE, Ls and Rs) we can’t simply play it back in FCPX (it will rematirx it)?
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I’m a perennial newbie on FCPX but, until a grown up comes along, here’s how I understand it:
Sequence (‘project’) can be 2.0 or 5.1 surround (CMD+J – project properties). That’s it. Anything outside those norms are mixed down to the project setting.
e.g. you can assign source tracks to be 7.1 surround – but that will be mixed down within a 5.1 surround.
BUT if you put a configure a source as 5.1, and put it into a 5.1 project, WITHOUT a pan effect added, then the tracks will come out as intended (do beware that the metering is Ls L C R Rs LFE – easier to identify if you bring up big audio meters with Shift + CMD + 8).
If you wanted to use the 6 channel (surround) project setting to achieve, say a normal deliverable of stereo full mix and m&e outputs, then you’d need to get into playing around with the surround panner. And you’d be in for a world of hurt…
I’ve been investigating editing with Roles and nesting my master sequence in a compound clip.
The compound clip is then the ‘submaster’ and can be edited and monitored in stereo.
The master sequence (containing the compound clip only) can be set to surround and used for final QC playback / export.
The roles of the compound clip within the master sequence can then be routed using the surround panner. Sadly this does some kind of ‘decoding’ for surround, so I wasn’t able to use it as a simple router.
Herein lies the problem, as I see it, in that Apple refuse to have an audio mixer in their NLE.
If anyone can point the way to achieve this deliverable on playback (i.e. send FX and MX roles to 2 x 2.0 outputs and DX role to 1st 2.0 output only) I’d love to hear. Roles/Lanes have got us closer…
Hope that helps