5/24/2023 0 Comments Slimraw contactNeil - Thanks for taking some time to reply and add your thoughts to the discussion.Ī few thoughts on the hardware/rig, and a bit more information. HDD = 1TB NVMe drive (everything on a single drive)Īny thoughts/troubleshooting would be welcome. mp4 files from GoPro Hero 6 (for testing)Ģx Xeon Silver 4114 2.20 GHz (10 cores each 20 cores total) Used an older (2013) Mac Pro (trashcan with 32GB of RAM) to play the same timeline and it did not have any problems with dropped frames on the reverse speed clip.Ĥk. Imported 4k GoPro clips into timeline to see if there was a difference amongst different 4k source devices. Imported 4k clips into a 1080p timeline (and set to frame size). toggled the Renderer for Mercury Playback between GPU acceleration and software only. Maybe slightly better at lower resolutions. Changed playback resolution from full > 1/2 > 1/4 > 1/8. I was using an older 'trashcan' Mac Pro from 2013 (with 32GB of RAM) and it didn't exhibit these problems, so I wonder if it is a Windows-specific issue. Both my machines should be capable of handing this without any issues. I am at a loss for why this is happening (hence the forum post) and am wondering if I am overlooking something obvious or if this is indeed a bug. But the end result is that the timeline is unwatchable for any clips where I employ this 'reverse speed' effect. It seems limited to the 'reverse speed' effect, though admittedly I haven't tried too many additional effects yet. This choppy playback does not happen when the clip is played back in 'forward speed', nor if I apply different effects to it like Lumetri colour adjustments. I have been able to reproduce this problem on two separate computers (both Win 10 machines with Premiere v13.1). The subsequent playback becomes very choppy (high % of dropped frames). I have a problem when I select 'reverse speed' on a clip in the timeline.
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