Known Participant

Question

Audio/video sync drift on VHS tape capture

Forum|Forum|3 years ago
April 19, 2022
2 replies
3211 views

I've got some old VHS tapes that were captured to mov. Played back in VLC, they're perfect.

Bringing them into Premiere, however, the sync drifts. By the end of the 90 minute tape, it's around 5-6 seconds out of sync (with the video being faster).

The tapes are in 29.97 frames, 44.1khz audio. I have tried using "interpret footage" to adjust the frame rate slightly, but nothing seems to work, or even get it closer to correct. I do not believe this is a variable frame rate issue, but it is having the same effect as when I get long clips from someone's iphone that does shoot with a variable frame rate.

I have been un-linking the audio and video and then slowing down the video by the difference to line stuff up, but I have to do this for several hundred clips and any advice would really save me a lot of time.

Windows 10, Premiere v 22.2.0

This topic has been closed for replies.

chrisw44157881

Inspiring

did you try prores? MOV is a container. what codecs did you try?

G

GwarAuthor

Known Participant

Yes, the first suggestion was just to try rewrapping it, so that's what I did there. I also converted it to h.264 MP4, which also plays back fine in VLC but not in Premiere. I'm working on Windows so prores is not a good option for me.

chrisw44157881

Inspiring

shutter encoder supports prores or you can try cineform or dnxhd. since you have drift, I don't think a re-wrap is gonna work. you'll have to merge it into another format like cineform, prores, dnxhd.

G

GwarAuthor

Known Participant

For clarification, I did not capture these tapes, it was done by some professional place several years ago. I see a lot of stuff about the tape source natively being 12 bit audio, but the files I have report themselves as being in 44.1 and play back fine in VLC.

Kevin-Monahan

Community Manager

Hello Gwar,

You might try rewrapping the files in Shutter Encoder (free) to see if you can still use the files but get rid of the VFR or other anomalies that don't play well with Premiere Pro. Let me know if the advice helps. By the way, I saw Gwar live two or three times. Good stuff.

Thanks,
Kevin

Kevin Monahan - Sr. Community and Engagement Strategist – Adobe Pro Video and Audio

G

GwarAuthor

Known Participant

Out of Sync issues usually start with the capture device.

What device did you use to capture the tape?

I'm not sure, I received the files from someone else. It was done at one of those professional tape capture facilities for a documentary crew a few years ago. Again, the sync is fine when played back in VLC, the issue only appears in Premiere.

Sign up

To post, reply, or follow discussions, please sign in with your Adobe ID.

Sign in to Adobe Community

To post, reply, or follow discussions, please sign in with your Adobe ID.

Scanning file for viruses.

This file cannot be downloaded