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exporting an embedded quicktime file with 5.1 audio out of FCP7

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Elizabeth Perlman
exporting an embedded quicktime file with 5.1 audio out of FCP7
on Nov 17, 2015 at 8:55:52 pm

the post house sent our master QT file with 5.1 embedded. I had to make some picture adjustments (no cutting) in fcp and now I want to export the file with the same 6 tracks embedded + untouched. When I try to change my sequence audio settings to 6 tracks I get a "the current audio device does not support the number of outputs set in the sequence settings audio outputs tab". OR when I tried to send the sequence to compressor and change the settings to 5.1, my file has 6 tracks but 4 of them are blank. is this a hardware issue? i have a late 2012 imac. not sure if i need special audio hardware for this, but I can play back the file from the post house just fine and that has 5.1


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Michael Gissing
Re: exporting an embedded quicktime file with 5.1 audio out of FCP7
on Nov 17, 2015 at 10:47:46 pm

The six tracks need to be patched to six discreet outputs otherwise you are getting a stereo mixdown. Thats why the other tracks are blank. Right mouse click in the track area and it brings up a little patch panel to direct the output to the correct discreet out.

Don't worry about the error message. It is just telling you you won't hear all the tracks but they will be in the quicktime. To maintain the levels of the original, every clip should be set for no gain change and panned centre.


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Nick Meyers
Re: exporting an embedded quicktime file with 5.1 audio out of FCP7
on Nov 17, 2015 at 10:59:00 pm
Last Edited By Nick Meyers on Nov 18, 2015 at 1:04:13 am

"the current audio device does not support the number of outputs set in the sequence settings audio outputs tab"

that's just about the monitoring, it wont affect the exporting.
you get an option to down mix to stereo, that's good.
again, that's just about monitoring, not exporting

"my file has 6 tracks but 4 of them are blank"

your sequence may still be set to stereo.
compressor is getting a stereo signal from FCP, and just ads 4 blank tracks


"I want to export the file with the same 6 tracks embedded + untouched"
this is how I have been doing it.
hopefully Michael Gissing will also chime in.


in FCP, open your sequence's settings, go to the Audio Outputs tab.
select 6 outputs.
set all 3 pairs to Dual Mono,
and set all to zero db.

back in the timeline, right click on or near the lock icon, for each track
and choose an output.
track 1 goes to 1, tack 2 to 2, etc.

make sure the audio clips are volume and pan neutral:
select it al, Option Command V to remove attributes pan and volume that you may have added.


i have been doing it this way to deliver files for a DCP.
(I have been exporting the audio separately)

when we tried to play the file in a theatre, the audio system didn't recognise the tracks,
but we were able to fix that in Quicktime Player 7 (you should have that)
by opening the Properties window,
choosing Sound Tracks > Audio Settings,
and adjusting the track assignment



nick


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