Experimenting with Premiere Pro's underutilized background transcoding feature.
- Dominic Natoli
- Dec 22, 2018
- 2 min read
So I was tweaking my settings in Premiere (2018) in my ever ending quest to optimize my low-end system for 4k editing and sharing those results with others. And I came across a feature that I see NO VIDEOS about this (so far) and yet it can make editing so much smoother AND cut export times by half (or even more).
A few months ago I discovered that editing 4k DNxHD instead of using raw R3D camera files made my editing experience so much better, but what I didn't realize until recently that my export times were cut almost in half.
My Computer specs:
Dell Optiplex 7010
CPU: i3 3225
GPU: Nvidia 1050 ti
6GB of RAM
Using a SSD as the boot drive, run Premiere and to save the cache
But using a 7200rpm HDD to save all the project files.
So if you go to where you create proxies in your inject settings, there is now a new option; Transcoding. And when using it (just like creating proxies) Adobe Media Encoder will open and start to convert your imported footage in your selected codec, but something interesting happens. When each piece of footage is done transcoding, it will replace the file in the bins and in the timeline automatically (or what I call "automagiclly"😁).
Knowing that there are many professionals that use Premiere don't always have the time to experiment with things like this. I did the experimenting for you. I transcoded a 5k R3D file to a wide variety of mezzanine codecs using this feature and measure the scrubbing performance, file size and even export times.
Premiere render times scrubbing performance export look
DNxHD 59.64 good good
DNxHD LB 37.02 great good
R3D (orig) 1:23.76 bad good
Cineform 42.56 great good
mp4 hb 39.05 bad slight artifacts
AVC Intra 35.52 great good
XAVC 58.42 good good
Xdcam hd 33.93 great good
Prores 2:00.15 bad good


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