Very low quality on 720p exports from Premiere, unlike when transcoding in AME

[Atso Galkin]

I have a UHD sequence (3840x2160) with 4K (4096x2160) inside it. Some of them are scaled at 170%, others at 103%.

Exporting this sequence at 720p (without Maximum Render Quality) from Premiere or AME results in very poor quality. Switching Maximum Render Quality on solves the issue.

However, if I first render the sequence at UHD resolution to ProRes, and then transcode it in AME without Maximum Render Quality, the quality is just fine. The pictures are from 170% scaled clips.

What gives? Why do I need to use Maximum Render Quality when exporting from Premiere, but when transcoding clips in AME, I don't?

[Sumeet Kumar Choubey]

Hi Atso Galkin,

Maximum Render Quality helps preserve details and avoid aliasing when scaling to a frame size different from your source media. For example, exporting from a high-resolution 4K sequence to a lower resolution HD or SD format. Enabling this option can improve quality but keep the following in mind:

• Export times can increase significantly, especially on systems without a supported GPU.
• Systems with supported GPU hardware automatically use maximum render quality if Renderer is set to Metal, CUDA, or OpenCL. Leave this setting deselected in those scenarios.
• This option is only useful when exporting to a different frame size. If you’re exporting at the same frame size as your source media (like rendering/transcoding a UHD sequence in UHD resolution), leave this setting deselected.

Hope this helps,

Thanks,

Sumeet

[Jeff Bellune]