Banding in Premiere and on Export

Question

In the past month or two I've noticed Premiere has started introducing a lot of banding into my footage that was not there before. It didn't used to happen before so I think it might have started in the latest update.

I am importing footage from multiple cameras, but all in various flavors of 10-bit ProRes (LT, 422, HQ), and in log. And as soon as it is imported to Premiere, there is banding in it. Yet, when I open the same files in Davinci Resolve or elsewhere, there is no banding.

Because the footage is in log, the banding isn't visible until it has been transformed and contrast added, but once there is contrast, the banding is quite prominent.

I always export out my edits 16-bit ProRes 4444 ungraded for color grading in Resolve, and now I have started getting heavy banding. I will attach a sample still, see left and right of subject, in out-of-focus areas. I will attach one still exported out of premiere, and one exported out of resolve to show the difference.

I have tried:

- Checking all Project and Sequence Settings

- Checking source footage

- Exporting footage un-altered as .dpx or ProRes 4444 and then opening in Resolve to make sure it wasn't a Lumetri problem.

- Re-importing footage

I have had no problems before, as I edit in Premiere and then export out ProRes 4444 to color grade in Resolve, and have done this on hundreds of occassions before without problems.

If I am missing something, let me know, but I think it might be a bug.

Thanks.

eleazarw33251381 · Accepted Answer

That ... is freaky! And an amazingly determined bit of sleuthing too!

I would love to get that LUT and some of the media you got that's all messed up. And do some testing on my kit with it.

Neil

If anyone else has the same problem, I found the solution to be unchecking "Enable Hardware Accelerated Decoding" in Premiere Pro > Preferences > Media.

R Neil Haugen · Answer

What's the color space of the files? That might be an issue, but there's a more likely cause.

Do you have Max Depth checked for both the Timeline/Sequence settings and in export? I would say make sure to both check the Max Bit Depth and set the drop-down option to 16-bpc both in Sequence settings and in every Export.

Save yourself some time, and make a preset exactly to your needs, INCLUDING MBD set and 16 bpc.

That Max Bit thing used to work automatically, but doesn't seem to anymore, so any 10 bit or better export really needs to have that set. Jarle Leirpoll was the one who first demonstrated that the behavior had changed, back around the 2021 release or so. NOT a good change either.

Neil

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