• Apple Final Cut Pro Legacy

  ProRes Artifacts

  Posted by Steven Knapp on May 18, 2011 at 7:45 am

  Hi All! I’m relatively new to FCP, switched from Avid a few months ago. I’ve just encountered some funky stuff when exporting a finished edit to an Apple ProRes 422 LT NTSC DV QuickTime file. The best way I can describe it is “blue artifacts” that seem to move around with skin tone highlights. It only happens with certain pieces of video, all from the same source file (encoded with NTSC DV). Screenshot:

  https://f1.creativecow.net/file/2360/2360_artifacts.png.zip

  I’ve ruled out hardware, as I’ve not seen any other hardware failure indicators across the system, AND I can export to NTSC DV (not ProRes) with no problem. Encoding error, maybe? I will admit I have not run any hardware diags, but I just bought the box a year ago this Summer.

  I’m running Snow Leopard (10.6.6) 2010 MacPro Octocore, 6 GB Ram, two Nvidia GeForce GT120s with dual 37″ HDTVs. Additional?

  Thanks CC Forums!! 🙂

  Shawn Bockoven replied 15 years, 3 months ago 5 Members · 4 Replies
• 4 Replies

• 

  Shane Ross

  May 18, 2011 at 8:05 am

  There is no such thing as ProRes LT NTSC DV. That is two completely different codecs…they cannot be made as one. Like saying “I had an apple banana for a snack.” It just doesn’t exist. ProRes LT is a codec. DV NTSC is a codec. ProRes NTSC is a codec.

  HOW are you converting to this mythical codec? Methinks that’s the source of the problem.

  Shane

  GETTING ORGANIZED WITH FINAL CUT PRO DVD…don’t miss it.
  Read my blog, Little Frog in High Def
• 

  Erik Lindahl

  May 18, 2011 at 9:13 am

  I was going to say the same as the above poster. There isn’t a codec called ProRes LT NTSC DV. You have ProRes, and different flavors of it, and you have DV. In all the resolutions I’ve work with ProRes in also I’ve never seen compression artifacts like you’re experiencing. So the question is probably how you are encoding this media and perhaps from what.

  ————————
  Erik Lindahl
  Freecloud Post Production Services
  http://www.freecloud.se
• 

  Rafael Amador

  May 18, 2011 at 9:46 am

  [Steven Knapp] “when exporting a finished edit to an Apple ProRes 422 LT NTSC DV QuickTime file. “
  Use a decent codec.
  Set the sequence codec Prores (no LT) and check “Render in High Precision”.
  rafael

  http://www.nagavideo.com
• 

  Shawn Bockoven

  May 18, 2011 at 3:37 pm

  The color corrector has created similar artifacts in some of our videos. Seems to happen when there is video on a track below the color corrected video.

  Shawn Bockoven

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