25 Minute Renders Slowing To 8+ Hours

Forum|Forum|9 years ago
January 27, 2017
11 replies
1470 views

I've been working for the last few years with editing and rendering 15-20 minute videos that have take around 25 minutes or less to render out with H264. The type of footage I'm working with hasn't changed at all but, all of a sudden, the renders are taking 8+ hours. I tried updating from Premiere 2015 10.4 to 2017 but it stopped recognising all of the audio from my video files and I had to revert back to 10.4 and re-save/replace every individual file (30+) out in MPEG Streamclip to get it to recognise the audio on them again.

After this, I rendered one video and it seemed to render out at normal speed. I started rendering the another one a few hours later and the render time has jumped to 12 hours.

Any help would be greatly appreciated as the video delivery is very time sensitive!

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Peter22310328n5g0

Participant

This is an ooooold thread, but I had the same problem in 2023, then I discovered that in Adobe Media Encoder, my "Renderer" had been switched to "Mercury Playback Engine Software Only" instead of "Mercury Playback Engine GPU Accelerated (Metal) - Recommended". Once I switched it back it went from 8 hour render to 15 min render for my YouTube video.

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Yogscast AlexAuthor

Participating Frequently

Hi Jim, just tried it - no difference, unfortunately.

However: I left 5 files stacked up to render over the weekend and the first one was predicting a 13 hour render but, when I checked 24 hours later, all renders had completed. It's as if something just kicked in and got it working at some point. I'm clueless!

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excited_Genie16B8

Legend

It does sometimes go that way. PP's estimate is assuming the same level of difficulty for the entire program. So a rough spot can drastically up that estimate, which drops back down once the rough spot is past.

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Yogscast AlexAuthor

Participating Frequently

After a few days of being fine, it has now gone back to 8 + hours. I haven't changed anything!

Jeff Bellune

Legend

Are you using GPU accelerated rendering and playback (File>Project Settings>General>Renderer)?

Do you have Max Render Quality or Max Bit Depth or Composite in Linear Color selected/checked for export?

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Yogscast AlexAuthor

Participating Frequently

Hi Jeff,

I have GPU accelerated rendering and playback enabled and I always check the 'Max Render Quality' box. I do this for every video I export. Thanks,

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Jeff Bellune

Legend

Okay, then try variations of those settings. Specifically, switch to Software Only rendering and uncheck Max Render Quality. Since the problem appeared suddenly, it's possible your project settings got changed inadvertently.

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