• Apple Final Cut Pro Legacy

  glitch on exports – same time, different project

  Posted by Hilleke Doevendans on March 28, 2011 at 11:41 pm

  We’re having an issue with exporting – for the last 4 episodes/weeks, we’ve been getting glitches in the final export. Very frustrating.

  The workflow is overly complicated due to the networks demands, but we shoot HD, edit HD, export through Color, then reimport to FCP, where we convert the sequence to SD for broadcast. It’s on this final SD export that the glitch is appearing. Every week it’s been at approximately the same time – 3 minutes into the export. It appears as a half screen of green/pixelated blocks which are very easy to miss on playback.

  The only change we’ve made to the system since last season is a new raid drive (HD Element). We’ve tried exporting from a different MacPro with the same results. Exporting to an internal drive doesn’t seem to make a difference either. Once we fix the glitch and re-export, it seems to be okay, but it’s become a very time-consuming workflow.

  So, to summarise – different projects do it. Different footage (no obvious reason why it would drop out on these frames). Always on the SD export. Final video is about 29 minutes, plus leaderboard, etc.

  Any ideas what this could be? Has anyone had this problem before?
  Thanks for any help/tips you can offer (and yes, we’ve tried trashing the preferences!)

  Edit1: MacPro, OSX.6.4, 2×2.8GHz Quad Core, 12Gb 800 MHz, ATI Radeon HD 2600 (256Mb), running FCP 6.0.6
  Edit2: MacPro, OSX.6.4, 2×2.8GHz Quad Core, 8Gb 800 MHz, NVidia GeForce 8800 GT (512Mb), running FCP 6.0.6

  Hilleke Doevendans replied 15 years, 2 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Jerry Hofmann

  March 28, 2011 at 11:53 pm

  How are you converting the HD to SD? Through QT conversion directly from FCP or are you using Compressor? (which is likely the way to go here sans a hardware conversion).

  Jerry

  Apple Certified Trainer, Producer, Writer, Director Editor, Gun for Hire and other things. I ski. My Blog: https://blogs.creativecow.net/Jerry-Hofmann

  Current DVD:
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  8-Core 3.0 Intel Mac Pro, Dual 2 gig G5, AJA Kona SD, AJA Kona 2, Huge Systems Array UL3D, AJA Io HD, 17″ MBP, Matrox MXO2 with MAX – Cinema Displays I have a 22″ that I paid 4k for still working. G4 with Kona SD card, and SCSI card.
• 

  Hilleke Doevendans

  March 29, 2011 at 12:30 am

  Sorry, I’ve just checked with the editor and I’ve got the workflow slightly wrong (it’s even more complicated than I thought).

  1. Export compile from HD timeline to HD quicktime (straight export – sequence settings: 1080i, prores)
  2. Import the HD QT and place in new sequence (SD, PAL, prores).
  3. Export SD sequence as a SD quicktime.
  4. Import SD QT into new SD sequence and run this through Color.
  5. Send Color-ed sequence back to FCP and export QT with sequence settings (SD, PAL)
  (At this point there have been no drop outs/glitches)
  6. Place SD/Color-ed QT into SD sequence with bars/tone, leaderboard, etc. Export from this sequence to SD quicktime (sequence settings). THIS is where we get the drop out.

  This workflow worked for 21 episodes last year, but this year, all 4 episodes so far have had just the one glitch at about the same time in the sequence.

  We’ve just noted that the leaderboard is HD – we’ll try a version with an SD leaderboard to see if that helps, but any other ideas welcome!

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