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29.97 fps Avid Animation Quicktime Plays at 1.15 fps in After Effects CS3
Hello All,
I have exported a self contained 29.97 fps Quicktime from Avid Media Composer 2.5.2 with the Animation Codec. This is an approximately 37gb 17 minute short with 48k audio.
I want to color correct it with After Effects CS3.
When I import the Quicktime, my footage now plays at 1.15 fps.
If I use the interpret footage function to change the frame rate to 29.97 fps, my 17 minute short plays in fast forward for a duration of 40 seconds or so.
When I play the self contained Quicktime using Quicktime Player and use the get info function, the frame rate is 28.69 fps. Everything is in sync and looks and sounds fine, just this odd frame rate makes me know something is dreadfully wrong…somewhere.
I have tried what I know: making certain the project settings are indeed 30i; attempting a new export from Avid; trying to save my Avid Quicktime using Quicktime Pro; searching these forums and gooogle, etc.
I believe this has to be simple, yet I am at a loss and utterly confused.
Thanks in Advance,
Edward -
3 Replies
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Lots of tests latter, here’s what I’ve found out….
A 29.97fps Quicktime (with audio & video) exported from AVID using the Animation codec show up in the After Effects Project window as 29.97 fps.
It RAM Previews at this frame rate.
And I can export it as 29.97fps from After Effects.However, 29.97fps Quicktime (video only) exported from AVID using the Animation codec show up in the After Effects Project window as 1.15 fps.
It RAM Previews at and exports at 1.15fps.
WTF?
Edward
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Hi Dave,
I don’t know After Effects very well, but I do know AVID better than I should.
I tested my AVID Quicktime exports prior to doing the whole shebang; tests exporting clips of 29.97 fps (I did not let AVID dertimine my frame rate ‘automatically’, but set it for 29.97), video, audio & video, and audio only, all using the Animation codec (millions + colors at best quality) read & played at 29.97fps in AE.
When I exported my 17 minute QT of video only, it read and played as 1.15fps. Even though it played in QT as 29.97fps (28.69 in QT, but you mentioned to not trust the figure QT provides).
And when I export both audio & video using the same Animation setting throughout all of this, it reads and plays at 29.97fps in AE.
My guess is that the audio is acting like a clock source…or frame rate/timecode “glue”.
So I dunno the answer to any of this, but will be doing what works until I hear better.
Thanks!
Happy New Year!Edward
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AE appears to take the frame rate of the clip from the first frame of the clip. In my case, I had color bars (a still image) at the head of my quicktime, so AE was assuming the ENTIRE quicktime was 1fps. I exported another quicktime without color bars & slate, starting at the beginning of the 23.98 footage, and AE was able to import & export the correct frame rate. Hope that helps.
Mike
Michael Southworth
mike@editville.com
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