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Activity Forums Adobe Premiere Pro Frame Rate Conversions

  • Frame Rate Conversions

    Posted by Vipin Vishwakarma on February 27, 2020 at 8:04 am

    Hi All,

    I want to convert, 60sec, 30sec, 20sec and 15sec masters from
    01. 25fps to 29.97fps, and from
    02. 23.98fps to 29.97fps?

    These would need to be without duplicate frames and the run lengths would need to remain the same.

    Tried
    25 fps clip dragged in 29.97 fps Timeline, by Keep Existing Setting. Speed adjusted to the source clip duration.

    01.Optical Flow- So wherever there is a cut the frame before and after is in a liquid effect.
    02. Frame Blending – So wherever there is a cut the frame before and after is dissolving.
    03. Frame Sampling- Duplicate frames are coming.

    Help Needed
    Thanks
    Vipin

    Shane Ross replied 6 years, 2 months ago 3 Members · 2 Replies
  • 2 Replies
  • Jon Doughtie

    February 27, 2020 at 11:05 am

    When you convert lower frame rates to higher frame rates, pulldown will always duplicate frames. It’s physics.

    System:
    Dell Precision T7600 (x2)
    Win 7 64-bit
    32GB RAM
    Adobe CC 2017.1 (as of 8/2017)
    256GB SSD system drive
    4 internal media drives RAID 5
    Typically cutting short form from UHD MP4, HD MP4, and HD P2 MXF.

  • Shane Ross

    February 27, 2020 at 5:58 pm

    23.98 to 29.97 INTERLACED…easy. Pulldown added to blend in the fields of video. 23.98 to 29.97 PROGRESSIVE? Sorry, frames will be repeated, or blending will occur. You are making 6 frames up out of thin air (5 with 25fps).

    Hardware converters will do a better job…such as Alchemist. And you can do some decent frame blending with After Effects, but not always perfect. Fast moves will make for odd ghost frames.

    Shane
    Little Frog Post
    Read my blog, Little Frog in High Def

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