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Eric Azara
Participating Frequently
January 2, 2022
Question

Random blink and artefact with interlace PAL SD video.

  • January 2, 2022
  • 2 replies
  • 560 views

Hello!  I do PAL SD video editing on Adobe Premiere (latest version, M1 Pro Mac) and I notice a really strange issue when I playing my videos in deinterlace mode (Yadif x2 with VLC or Blend fields with Telestream Switch). Everytime a do an export of my project, a video track desappears, a frame repeat twice and opacity mask and Ultrakey effects do artefacts.

 

The most weird thing is sometimes, I get different artefect or blink with each export for the same project, without any modification!

 

On this exemple we have three video tracks at the same format :
1. The scene
2. The frame, with an Ultrakey effect to remove the background at the center
3. The title with Ultrakey Effect to remove the background with opacity layer.
As you can see, on the Export 1, we have artefact everywhere. And on the second export, everything is ok!

 

 

Other exemple, more simple. We have a white fade from the intro to the scene. On Export 1, everything is ok, on Export 2, the second video track with the frame is blinking.

 

 

I tried a lot of things :
- Export with Premiere
- Export with Media Encoder
- Clean project cache
- Clean Premiere cache
- Inspect all my video files
- Use different project
- Use different export format
- Reinstall Premiere and Media Encoder
- Create new project

 

The only things worked is to export the project on my PC (with the latest version too). Everything seems works fine !

 

To help you to identify the problem, here is some information about my settings :
- Computer : MacBook Pro, M1 Pro model, with MacOS Monterey
- Software : Adobe Premiere version 22.1.2 (the latest at this day)
- File sources and export settings : Apple ProRes 422 HQ - 720x576 PAL SD, interlaced, top field first.

Presision : All files I use in my project are in the correct format and at the correct resolution.

Thanks for your help!
Eric

This topic has been closed for replies.

2 replies

Eric Azara
Participating Frequently
January 2, 2022

I forgot to say, the problems don't showing only on files from my analog capture card, but also on pure digitally made videos, like this countdown made with PSD sources on Premiere.

 

Inspiring
January 3, 2022

It might be a bug or a glitch. When in doubt I wipe and reload the OS and software. 

Eric Azara
Participating Frequently
January 6, 2022

I have totally reinstall my system, nothing change. Always the same problem.
I also tried to export my projects on an Intel Mac (with the latest version of Premiere) and everything works, no problem.

Ann Bens
Community Expert
Community Expert
January 2, 2022

What is the origin of the files. SD pal is usually lower field.

Eric Azara
Participating Frequently
January 2, 2022

The files comes from an Blackmagic Design analog capture card (Intensity or UltraStudio HD Mini model), recorded with Blackmagic Media Express.

Inspiring
January 2, 2022

What kind of video tape did you capture (DV cam, Hi-8, VHS, 3/4", Digital Beta, Betacam)? Does all the video captured have the same result?