15 Replies Latest reply: Oct 29, 2014 11:11 AM by SAFEHARBOR11 RSS

    How to eliminate mysterious flicker?

    frbra1

      Hello community.

      I am editing a video in Premiere Pro CC 2014. My problem is:

      In the program monitor and when exporting, some clips starts to flicker heavily. You can see it here: (the madness begins at 1:10) https://vimeo.com/100396813.

       

      Info on the clips and the timeline:

      • File types:
        • 1080 50i AVCHD .mts 24mbit (canon Legria HF G10)
        • 1080 50i .mov (Nikon D5200)
        • 1440 25p .mp4 (GoPro Hero 3+)
      • A few clips are dynamic link to After Effects
      • All clips have individual adjustment layers
      • Som adjustment layers contain color correction LUT effect from SpeedGrade

       

      Sequence settings:

      Sequence settings.PNG

       

      Export settings:

      • H.264
      • Preset: Vimeo 720 25p
      • Checked in boxes:
        • Use Maximum Render quality
        • Use Previews
        • Use Frameblending
      • Sent to Media Encoder for exporting

       

      System:

      • ASUS Notebook N53sv
      • Windows 8.1 Pro - 64 bit
      • Intel Core i7-2670M CPU @ 2.20Ghz 2.20 Ghz
      • 16 GB ram
      • Nvidia GeForce 540 (driver updated)
      • Premiere Pro CC 2014 fully licenced fully updated

       

      I tried troubleshooting it:

      • All clips are fine when viewed in the source window.
      • The clips with flicker are various types: mov, mp4 and mts.
      • The flicker still occours if I remove effects from the "bad" clips on timeline (done by disabling the adjustment layer).
      • Exporting with higher bitrate did not solve it
      • Changing sequence settings to Maximum Render Quality removed flicker from some clips but not all when previewing in Program monitor. (currently testing to see how an export will look like)

      The first 20 hours of editing this video all clips played smoothly with no flicker in all windows of Pr. From what I remember things started to get wacky when I copied and pasted a sequence to be able to make a version of the video in another language.