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Activity Forums Apple Final Cut Pro Legacy 29.97 edit to 23.98 timeline in FCP

  • 29.97 edit to 23.98 timeline in FCP

    Posted by Brent Bye on April 3, 2008 at 7:36 pm

    I have a 29.97 edit that is an assembly of DV clips shot on the Panasonic DVX-100 that acquired footage using the 24Pa setting.

    The ultimate intent is to take this same edit of over 3 1/2 hours of footage and upres and covert it to a 23.98 timeline with all edits reestablished.

    I have gone through the process of upresing all of the source footage. All files were put through Cinema Tools and had the pulldown removed while conforming to 23.98 frame rate. Then all clips were put into After Effects for upres using the Red Giant Instant HD Filter.
    The footage all looks great and it is now all native progressive at 23.98 frame rate. Audio within the video clips is in sync.

    The problem is trying to get the edit to conform to 23.98 and then reconnecting the source upresed source clips. Specifically, the separate audio tracks that have narration and music did not go through any processing. Reconnecting the 29.97 bases audio to the new 23.98 sequence causes audio sync issues. The audio linked with the video is fine of course as it went through the Cinema Tools processing. The Narration tracks and music have not been processed.

    As far as the edit conversion attempts, we have opened the 29.97 FCP edit and then exported an EDL to cinema tools but the re-import of the Cinema Tools EDL causes the narration audio (separate from the video track audio) to be cut off.

    Is there are specific workflow that is to be followed in this scenario? We just need to have the 29.97 edit be able to get to a 23.98 sequence and then we can reconnect the upresed footage that was converted to 23.98. The separate audio tracks are the issue and we don’t know if we need to process them separately and re-import to the 23.98 timeline.

    The end goal is to have a 23.98 timeline with natively progressive footage at 23.98. We would try to stay in a 29.97 edit but we can’t process the 23.98 upres footage back to 29.97 because it will introduce interlaced frames during pulldown.

    Any ideas? Thanks….

    Matthew Nelson replied 18 years, 1 month ago 4 Members · 17 Replies
  • 17 Replies
  • Jeremy Garchow

    April 3, 2008 at 8:01 pm

    Where did the narration originate?

  • Brent Bye

    April 3, 2008 at 8:04 pm

    Narration was done with the FCP voiceover tool for the most part. Recorded as 48 Khz quicktime audio with an added pass through Soundtrack for audio compressor addition then back into FCP as same sample rate 48 Khz.

    Does the sample rate matter for sync and timing concerns or is just essentially a quality setting?

  • Jeremy Garchow

    April 3, 2008 at 8:06 pm

    [Brent Bye] “Does the sample rate matter for sync and timing concerns or is just essentially a quality setting? “

    Many schools of thought on this. Yes and no.

    Those files that are recorded by the voice over tool, are the aiffs or movs?

  • Brent Bye

    April 3, 2008 at 8:14 pm

    Voiceover Tool within FCP makes .aif files in the capture scratch that are 16-Bit Integer (Big Endian) at 48 kHZ

    The the files went into Soundtrack, had compression added and the output file that went back into FCP say the same details, but have no .aif extension. I believe I just named them without an extension upon Soundtrack export.

  • Jeremy Garchow

    April 3, 2008 at 8:31 pm

    [Brent Bye] “The problem is trying to get the edit to conform to 23.98 and then reconnecting the source upresed source clips. “

    Wait, I just reread this and flagged it.

    What are you reconnecting and I thought you said it was already conformed to 23.98?

    You aren’t trying to Reconnect the AE renders to your original timeline, are you?

  • Brent Bye

    April 3, 2008 at 8:36 pm

    Multi track edit in FCP with video/audio as well as separate narration and music tracks. Standard type stuff…

    Edit is at 29.97 with DV footage.
    DV footage was Rev Pulldown and covert to 23.98 audio linked to video is fine.

    Trying to get the edit to conform to a 23.98 timeline, then will reconnect the upresed 23.98 footage to it.

    Attempts so far have 23.98 footage in the 23.98 timeline but original narration and music tracks are out of sync.

  • Kevin Monahan

    April 4, 2008 at 5:03 pm

    I wish I could be more helpful but the workflow of your project doesn’t make sense to me.

    The basic rule of thumb is that if you need to work at 24 but need a 29.97 output (for screeners, dailies, etc.), you should’ve worked in 24 fps from the get go, adding pulldown to conform to your 29.97. To do it the other way has always been fraught with problems. I have a feeling that this won’t be an easy fix.

    Kevin Monahan
    fcpworld.com
    Author – Motion Grahpics and Effects in Final Cut Pro
    Now seeking post-production work in Los Angeles

    Now Seeking Gigs in LA

  • Jeremy Garchow

    April 4, 2008 at 5:11 pm

    I feel the same way. If you shot 24pA, you can remove that pulldown on capture.

    AS far as the audio goes, I don’t see why you can’t just re add it to the timeline, but as Kevin says, I am a bit confused on your workflow.

    Jeremy

  • Brent Bye

    April 4, 2008 at 5:16 pm

    Hi Kevin,
    I wish originating in a 23.98 timeline would have been an option years ago with DV cameras but unfortunately myself and tens of thousands of other shooters have years of 24P footage aquired on DVX-100s and the like that only acquire 24P footage by conforming it to 29.97 with an on-the-fly pulldown in camera.
    Before recent versions of FCP there were not even options to capture footage into FCP with the “Advanced Pulldown Removal” option. So I and many others are stuck with a massive capture scractch with years of footage that is 24P conformed to 29.97 in DV-NTSC format.

    My end goal is to simply have all native progressive footage in a 23.98 timeline but all my source footage is 29.97 (24Pa)…not much I can do but try to figure out how to convert it all. Biggest problem is getting the edit to conform across the two time bases. EDL export to Cinema Tools is not a well documented process and may not by the best result I’ve found so far.

  • Brent Bye

    April 4, 2008 at 5:30 pm

    All of the 24Pa footage was captured years ago when there was no option for capturing with “pulldown removal”. At that time, all editing was done at 29.97 as there was no other option for 24Pa besides a 29.97 edit.

    Is it possible to recapture with the new “Advanced Pulldown Removal” setting and then reconnect to a 23.98 timeline. Again, problem is the edits were all done in 29.97 timelines.

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