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Exported Audio is shorter duration when brought back into FCP

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Mark Mathews
Exported Audio is shorter duration when brought back into FCP
on Feb 20, 2013 at 9:08:31 am

Hi there, I am really at a loss and desperate for some help.

I have done this once before and it worked fine, but for some reason something is not working. I am setting up six tracks of audio, 2 stereo panned left and right, 2 music and effects left and right and 2 dialogue. When I did this before I mixed the sound as I wanted in FCP and then exported the tracks as I needed them, as AIFF's.

I then brought the AIFF's back into FCP, lined them up with the footage and all was good.

However, I have gone to do the same again and when I bring the audio back in the audio track is less in duration?

So, on my timeline the in and out points tell me the clip is 22minutes.
I export it as an AIFF and QT tells me the clip is 22minutes
When I bring it into FCP it tells me it is 21:58:15 and no longer matches my footage?

What is going on?!! All the footage has 48khz audio. I export it as 48Khz and I have checked the in and out points a million times.

I have so much to do and yet can't get any further with this issue. Please, can someone help?!


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Nick Meyers
Re: Exported Audio is shorter duration when brought back into FCP
on Feb 20, 2013 at 8:07:23 pm

double check your sequence pre-set

if the frame rate does not match your working sequence, you can have sync issues importing audio.


nick


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Mark Mathews
Re: Exported Audio is shorter duration when brought back into FCP
on Feb 20, 2013 at 8:11:34 pm

Hey Nick,

Yep, my sequences are 25fps and my footage is the same...?


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Nick Meyers
Re: Exported Audio is shorter duration when brought back into FCP
on Feb 20, 2013 at 8:24:16 pm

in your A/V settings, do you have a 25fps sequence checked as the pre-set?


nick


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Mark Mathews
Re: Exported Audio is shorter duration when brought back into FCP
on Feb 20, 2013 at 8:42:44 pm

In the Audio/Video settings I have HDV 1080i50 preset, which is 25fps...


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Nick Meyers
Re: Exported Audio is shorter duration when brought back into FCP
on Feb 20, 2013 at 9:41:11 pm

sorry, then i am at a bit of a loss, too.

a clarification:
are you exports cut short, or are they playing out of sync?
if cut short, try adding some slug to the end of the track and re-export.


do you need AIFFs?
can you export as quicktime movie, current settings. audio only?


have you tried copying your timeline into a new sequence and trying the export from there?


nick


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Dave LaRonde
Re: Exported Audio is shorter duration when brought back into FCP
on Feb 21, 2013 at 3:42:41 pm

Audio render files can be flakey sometimes. Go to the Render Manager, find the project's audio render files, delete them and try again.

Dave LaRonde
Former Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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