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Trying with no luck to edit at 12fps – is this possible?
I’m working in FCP 5.1.4 and I am exporting from After Effects uncompressed 10 bit quicktime files at 12fps. However, within the FCP sequence settings I cannot change the frame rate to 12fps? Within the Quicktime Video Setting of the Sequence settings, I can change the frame rate, but it says : “Frame rate change ignored. Use the Editing Timebase to specify the frame rate preset” – and here is the problem! Any advice or can you simply not edit at 12fps?
Any advice would be super.
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9 Replies
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FCP only wants standard video rates.
Why are you trying to cut at 12fps? How about cutting at 23.98 and then exporting a 12fps Quicktime?
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I don’t think you can edit in 12 fps in FCP – but Motion does any frame rate.
Jaap
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Hi thanks for writing, basically i’m editing an animation that has been done at 12fps, exported from after effects, so syncing it to music needs to be done at 12fps in FCP, but it seems this is simply not possible which is a bit of a shame.
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Why has it to be done in FCP? You can do it in Soundtrack Pro, it accepts 12 fps. I guess you could even do it in Motion or After Effects if it just a matter of syncing.
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Create a timeline with a frame rate that FCP supports, export this one to XML and edit the frame rate values with an XML text editor. This is not officially supported of course but I developed this workflow to get 50p support long time before this was supported in FCP 6.0.2 by standard. I think this should also work with 12 fps.
Review page 13 and following of this PDF: https://www.aulich-adamski.de/download/720p50_FCP_5.x-6.0.1_en.pdf
This is part of the trick to change a 25 fps timeline to 50 fps. Should work also when changing the value to 12 fps.
The entry in line 9 is what you need to look at:
< timebase>25< /timebase>
Change the value 25 into 50 like this:
< timebase>50< /timebase>
You’ll have to do it again in line 14.
You’re done. Just don’t try and edit the timebase tag in line 34, as this would yield a defunct file. Changing the general frame rate and the timecode seems to be enough, no need to change it for the video characteristics.If you don’t get then I can try to create a 12 fps sequence for you. Just contact me through our website even if this is not related to MXF.
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Product Manager
MXF4mac
https://mxf4mac.com -
Seems to work… I get the XML Error log as you described in your document. But I can export and import 12 fps from this modified sequence. So it can be done – great!
Did you ever work out if you can modify the frame size this way?
Jaap
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Modifying the frame size would only be needed to exceed the maximum resolution of 4000 x 4000 pixel. I ried this ones and it failed.
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Product Manager
MXF4mac
https://mxf4mac.com -
hello bjoern,
thanks for your help on this. i’ll try the XML work flow you suggest, it will be great if it works, i’ll let you know how it goes.It sounds promising if Jaap has made it work. Thanks.
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Are you actually creating a 12fps film? Why? How will you show it?
Or are you creating a conventional 24fps film that is being shot in what we Americans call “on-twos”? that is, every still image is being show twice in a 24fps projection.bogiesan
This is my standard sigfile so do not take it personally: “For crying out loud, read the freakin’ manual.”
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