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Participant
June 23, 2020
Question

dropping quality on deinterlacing DV. Retaining 59.94

  • June 23, 2020
  • 2 replies
  • 727 views

I am capturing DV Digital8 tapes and trying to maintain the best quality possible. It seems that the only option in Premiere for deinterlacing is setting the field order to 'always deinterlace,' or setting my export to progessive, is dropping half of each frame. I have been using VirtualDub to deinterlace my captures with the Yadif algorithm where I end up with AVI files at 59.94 fps instead of 29.97fps in order to maintain highest possible quality. Then I return to Premiere to encode into H.264.

 

Is there any way to change the deinterlacing algorithm in Premiere Pro 2015 so as to avoid dropping frames.

 

Do any newer versions than 2015 have different options or settings on deinterlacing?

 

I attached a screenshot with virtualdub deinterlacing on the left and Premiere on the right.

Deinterlacing with yadif in VirtualDub brings my framerate to 59.94fps.

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2 replies

chrisw44157881
Inspiring
June 24, 2020

I don't know if dropping frames is a different issue you are having or if we're using different terms. When you deinterlace, the deinterlacer drops, blends, discards, merges, the 2 fields into one frame. for example, 29.97i which is 59.94 fields/sec gets converted to 29.97 progressive and shouldn't drop any frames per say.

2015? that's old. I believe that at least in AE, the deinterlacer was improved somewhere around 2014-

2017 so maybe they ported it into premiere 2020 as well. That being said, the default premiere version is not the best. You can use the free QTGMC filter in avisynth which is a little tricky to setup, but amazing results, same as the super expensive ones. also note: that deinterlacing is not the same as frame-rate converting like optical flow.

Inspiring
June 24, 2020

This video link might help. https://youtu.be/dVLUxRkPMdA  

Legend
June 24, 2020

you're kind of screwed.  do some googling and there are different suggestions and plug-ins, none of them work that well... at least in my experience.   there are other options in after effects...