Downsampling 4k in Premiere Pro

[Len Rosenberg]

Hi all. Just started recording in 4k. Would like to downsample to HD (1080p) on export. Have read that using bicubic downsampling gives the best results, but cannot find in the export dialogue box any option to select the type of downsampling used. Can anyone tell me where to find that, or point me to a tutorial that explains how? Using Premiere Pro CC 2017, current version.

Many thanks.

Len

 

[davedv]

I believe you want to enable the Maximum Render Quality checkbox when exporting from Premiere. By default Premiere uses bilinear downscaling; with the Maximum Render Quality option enabled Premiere uses bicubic downscaling. Keep in mind that bicubic downscaling is significantly slower, so this will increase export times.

Here is some more background on the different scaling algorithms used in different situations in Premiere:
https://www.provideocoalition.com/scaling_in_adobe_premiere_pro_cs5