Participant

Question

Closed Caption is out of sync when apply Time Tuner effect at the export of a media

Forum|Forum|1 year ago
March 6, 2024
3 replies
656 views

I have the media and closed caption sync on the time line, when I export the timeline and apply the Time Tuner effect the out file show the closed caption out of sync.

This topic has been closed for replies.

D

dylan_9363

Participant

We are dealing with this issue on a large scale now with episodes that are 30-60 minutes in length where captions are off by several minutes by the end of the program.

Premiere and Media Encoder 2022 work when exporting captions with Time Tuner, but 2022 is no longer supported or available through Creative Cloud. Luckily we had an old 2022 version on another machine. But it's still a pain because we have to export the time tuner version in 2024 along with a non-sped up version with the captions, but just audio with no video to speed up the export. Then bring the non sped up version with just audio and the caption file into 2022 and export it as the same target duration and use that scc caption file.

This is the only workaround I can think of for now, but it's adding a lot more time to the process for what used to be automatic and more than doubles the time and work involved. And if Premiere 2022 stops working, we will be completely out of luck. I would hope Adobe fixes this since 2022 is no longer even accessible.

Stan Jones

Community Expert

@dylan_9363 @CarlosGH,

I believe this is a bug: PR allows embedding and exporting sidecar for 608 captions, but does nothing to adjust the times when applying the time tuner effect in PR 2024.6.1 for QuickTime embed and scc sidecar. I only tested embed for PR 23.6.4, and it also does not work correctly. I tested PR 2022.6.4, but it ignores the embed command.

I am testing on a SurfacePro Win10.

I believe the best workaround for sidecar is to export as you are, which exports a full length scc file. Use Subtitle Edit to retime it. Open in SE, then Synchroniszation -> Changed Speed (percent), and set to 90%. Save as and this file matched perfectly for me. But I have no tested for maintaining formatting. Let us know if this works.

https://www.nikse.dk/subtitleedit

In the embed version, it simply cuts off the captions early.

@Kerstin Ebert Who is the correct team for this issue?

Stan

Ann Bens

Community Expert

You will have to contact Time Tuner over this.

Moved thread from bugs to discussion.

Stan Jones

Community Expert

Yes, I see this. I assume the current operation of Time Tuner makes no adjustment in the embedded caption timing. It also does not appear to adjust in any way the times for .scc sidecar exported at the same time as the time tuned export.

I would guess the programmers would consider this more a feature request than a bug.

The workaround is to export the time tuned file (lossless intermediate maybe?), then import that file, time the captions, and export with embedded captions.

Stan

C

CarlosGHAuthor

Participant

The version 23 works perfectly with this effect and closed captions, is on the new version where the option only works with the media (video and audio), your workaround take a lot of time to our editors and I did a previus payment to sync those time code. the only workaorund that could help is going back to the version 23.

Stan Jones

Community Expert

@CarlosGH,

Interesting. I tested on 23.6.4 and I see the same problem. My earlier test was using a very short test. This time I used a 3:46 clip; reduced by 10% is 3:24. The 608 Closed captions are "behind" by the end of the export by almost 20 seconds. At the one minutes mark, they are behind by about 5 seconds.

I agree; not an adequate workaround.

Stan

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