Large number of Captions locking up Premiere

[Nick Lear]

I am working with some long interview where I've got an SRT caption file for them so I can cut line by line. I drag the srt onto the timeline and create captions. There are about 800-900 captions usually. Lots of languages, but it doesn't affect it.

I am finding it grinds Premiere to a halt. Not literally, but makes it run at about 10%. So for example moving files around in the Project Panel or anything I want to do. Click on something, 4 seconds later it takes. Hit in point, 4s later it appears.

In Task Manager, nothing is maxing out. I do have a lot of Adobe CEP MTML Engines.

If I delete the caption track, Premiere goes back to normal. If I close the sequence, Pr goes back to normal. If I cut it down to say 200 captions, the problem remains. In a quick test I found cutting it down to 35 captions cut the delay to minimal. Cutting the captions to 15 took the problem away completely. The test sequence was with Chinese captions. Similar with English captions. The delay got less as the number of captions went down.

Windows 10, TR 3960X, 128GB RAM, 2060S 8GB VRAM. Pr 15.4.1 (Build 6)

[POwens]

Still happening in v23 for me on Mac.

[Stan Jones]

POwens,

Yes, very frustrating.

How long is the sequence (in time)?

How many captions on a track? How many tracks?

I'm always trying to replicate this.

Do you have "show duplicate clips" on? If so, did you try turning off?

Just looking for information; not suggesting you work this way.... If you disable all the caption tracks, does that speed it up? If you close the Text panel (and only work in the timeline/Program Monitor)? If you zoom into the timeline so only a few captions show (with and without the Text panel open)?

If makes perfect sense to me that lots of captions might slow things down. But I have created some monster sequences, and have not been able to create the dramatic slow down that you, and others, have reported.

I was able to replicate this in a version prior to 22.5, where I thought it was fixed. In any event, I was unable to replicate it aftr that.

https://community.adobe.com/t5/premiere-pro-discussions/slow-performance-with-subtitles-premiere-202...

Stan

[POwens]

Sequence is around 1 hour.   Only one caption track, 4 V, 16A.   About 700 captions.   Hiding captions helps, as does deleting media cache.   THe project is set up as a Production, and all seemed to work well for a week or two, but as the sequence got longer, things started to slow down until this morning I was barely able to work at all, and video wouldn't even refresh.

[Stan Jones]

Thanks! I hope to try a new round of testing soon....

Stan

[POwens]

I can confirm it's not fixed in v23 - I'm suffering terribly from the system being brought to its knees on a feature doc in multiple languages, so the entire film is subtitled.

[ryan22142288okmc]

Best workaround is bringing the srt in and then hiding the the subtitle track. You can still see subs and it runs smooth when hidden

Sent from my iPhone

[Nick Lear]

Hiding captions track (set a shortcut for on and off so you can quickly see it when you need it) is good. And some have also seeen turning off dupe detection helps too (though this is a vital function for a lot of editors so it's not ideal). 3rd possible workaround is copying the sequence into a new project. Until it's fixed completely, workarounds is all we have.