[Dan Powers]

Just confirmed this is only happening in 2020 Premiere Pro 14.01 . And not happening in Premiere Pro 13.1.5

[Dan Powers]

Were you by chance using Arri Alexa Pro Res footage? I have narrowed it down to that.

[Dan Powers]

Bueler?

[Dan Powers]

Found the issue but cant fix it. The issue is with how Premiere handles Arri Alexa Pro Res files. I dont have the issue with other media or once it has been rendered to ProRes HQ.
I have just confirmed that Adobe Premiere 2020 14.0.1 Does NOT work with Black Magic Designs produicts when working from Arri Alexa Pro Res Files. I tried other BMD devices and am getting the same results.
Premiere 2019 does work. Something was broken in the transition to 2020 in regards to Arri Pro Res.

BMD 11.4.1.

Mojave 10.14.6

Dan Powers

[Dan Powers]

I am going to do a CineForm test this morning. I hate committing to a format/codec that may or may not be around in a few years. But I will research it and see how it goes. Thanks!

[Dan Powers]

I am using Pro Res HQ 3840 X 2160 2997 on 1080 timelines.
Even single stream (un-rendered) drops frames and doesnt scrub very smooth on what was up to last month the fastest Mac you could use.

A couple of Macs back I had the last G5 tower and had tweaked it as much as I could to make it perform and it did nicely till the OS killed the ability for me to use a hacked driver on a NVidia 1080ti (cuda). It scrubbed smoothly.

I will venture to say it was smoother on 1080p than my high power machine is on UHD.

I would be interested in hearing from PC users and how much better/smoother it is editing with Cuda cores instead of our metal.

Just as a little more throwback, the Speed Razor software on a super fast (for 1997) PC was playing back dual stream DCT via SDI without dropping any frames and zero compression artifacts thanks to the $15K Matrox Digisuite boardset. It was a beast of a machine back in the day and outperformed every other NLE on the market by leaps and bounds. That was a $35K machine back in the day.

[Dan Powers]

Eric what video card does your iMacPro have? Mine has Radeon Pro Vega 64 16 GB. Just did a complete reformat and reinstall of the OS for other flakey reasons, but thought I would try our HDMI stutter issue again and it is still here. I tried it on another iMac Pro in house and it does not stutter. The other machine has the smaller video card in it. Makes me think there is a problem with the Radeon Pro Vega 64 16 GB.

[Dan Powers]

Duplicate the layer and mask between the two layers with two different color corrections.

[Dan Powers]

Thanks! Reading now!

[Dan Powers]

Thanks Oliver. What I/O are you guys using? I have BMD UltraStudio 4K and dislike how it handles audio. Put in a good external Audio interface and I find that the audio is better in some ways but still the audio will mute out requiring the pause and play button to continue playback. BMD also wont work for VO input.

I used AJA Kona for many years back in the SD to HD days and it was rock solid.

What NAS are you guys using? I have a QNAP TVS 1282 with 4 expansion chassis running and get pretty decent speed across the workstations at 10G and a couple running via Thunderbolt. However the QNAP looses thunderbolt 3 connection and I have to revert to 10G.

The iMac Pro keeps crashing when rendering using Adobe Media Encoder and the mouse moves but the screen is locked requiring a restart. Not repeatable outside of Adobe software. I wish apple would run a GPU test on my machines. But they wont.