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Horrible Compression Artifacts Upon Export

Explorer ,
Jun 14, 2021 Jun 14, 2021

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Hi there!

 

I'm astonished at the clear difference between my timeline monitor and the export preview window.

 

You can see a drastic difference between what will be exported and what I was working on in the timeline. Does anyone have any info as to what is causing this?

I have maximum bit depth selected in my sequence settings.

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Error or problem, Export

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Adobe Community Professional , Jun 14, 2021 Jun 14, 2021
I would also uncheck the Max Render Quality checkbox. It doesn't seem like you're scaling and it's possible that you're even introducing issues with that checkbox. You may try the same with unchecking Max Bit Depth (Are you using 32-bit effects in your sequence? Or have high bit depth source media?) You can also increase your bitrate a little bit, like try 15/20 rather than 10/12, or even higher.  In general, compression is going to block together like colors and it's going to struggle with a ...

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Adobe Community Professional ,
Jun 14, 2021 Jun 14, 2021

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Both sequence and export fields are set to lower: change that to progressive and try again.

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Adobe Community Professional ,
Jun 14, 2021 Jun 14, 2021

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I would also uncheck the Max Render Quality checkbox. It doesn't seem like you're scaling and it's possible that you're even introducing issues with that checkbox. You may try the same with unchecking Max Bit Depth (Are you using 32-bit effects in your sequence? Or have high bit depth source media?)

 

You can also increase your bitrate a little bit, like try 15/20 rather than 10/12, or even higher.  In general, compression is going to block together like colors and it's going to struggle with a tightly knit pattern like that road with only subtle differences in color. Higher bitrate would help mitigate it.

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Adobe Community Professional ,
Jun 22, 2021 Jun 22, 2021

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Adobe Community Professional ,
Jun 22, 2021 Jun 22, 2021

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It looks like compression generation loss.  Is the source footage MP4?

 

Even if your source footage is 1st generation MP4, it can fall apart completely upon export.

 

Do you know what bit rate the source footage was shot at?  Ideally, it's 21 Mbits/second or better.  Low-end professional starts at 35 Mbits/second.

 

Also, consider an editing workflow where you transcode 1st generation MP4 to something that's good for editing like ProRes422 LT.  You'll also be taking advantage of Smart Rendering in Premiere Pro (things will be faster).

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Explorer ,
Jun 22, 2021 Jun 22, 2021

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Hi Warren,

No this was shot in Apple ProRes 422.

I figured out what Premiere was doing (and fixed it) but I thought I'd reach out anyways!

Thank you!

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