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Wrong frame rate used in project...any fix?

466 Views 8 Replies Latest reply: May 14, 2013 12:36 PM by dvdflashbacks RSS
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May 14, 2013 10:40 AM

So I am working on a client project and it appears that one of the cameras was set to 1080p at 29.97 fps instead of 24 fps.  So half of the footage is not in the right frame rate.  Won't doing a conform result in unintentional slow motion?

 

Can anyone tell me what the best solution might be for this?  And what are the side effects?

 

Thanks.

  • Michael Grenadier Level 6 Level 6 (19,805 points)
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    May 14, 2013 11:53 AM (in response to dvdflashbacks)

    First, when you say 24 fps, do you actually mean 24p (23.976 fps)? 

     

    Is all the 24p material progressive?

     

    If so, I'd take the 29.97 fps material into compressor and in the encoder panel:  video:  change the frame rate to 23.976 and in the frame controls panel,  turn frame controls on, make output files progressive, deinterlace:  best,

    rate conversion:  best  and set duration to 100% of source.

     

    Do a short test by setting ins and outs in the preview window to make sure everything's working properly.

  • Shane Ross Level 8 Level 8 (41,655 points)
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    May 14, 2013 11:59 AM (in response to dvdflashbacks)

    A CONFORM will slow the footage down.  Using Compressor to convert will not. 

     

    What is your target output?  23.98 converts to interlaced 29.97 far better than 29.97 converts to 23.98...

  • Michael Grenadier Level 6 Level 6 (19,805 points)
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    May 14, 2013 12:00 PM (in response to dvdflashbacks)

    do a test.  I recently converted a documentary shot at 29.97 fps to a digital cinema package that required 24 fps.  The conversion I suggested looked pretty good.  The audio was not a problem.

     

    You can convert 24p footage to 29.97 by adding pulldown.  Not sure how good compressor does this.  I've always heard the After Effects does the best job of adding pulldown.

  • Michael Grenadier Level 6 Level 6 (19,805 points)
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    May 14, 2013 12:01 PM (in response to Shane Ross)

    All depends on what the foootage is.  Interviews, the conversion to 23.986 will probably be undetectable.  Sports footage, fast movement, might be a problem.

  • Michael Grenadier Level 6 Level 6 (19,805 points)
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    May 14, 2013 12:12 PM (in response to dvdflashbacks)

    dvd's can be either 23.986 or 29.97 fps.  There's a slight advantage with 23.986 as you can get slightly better quality with the same bit rate (or fit slightly more material onto a dvd).  Whether you'd be able to see the difference...

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