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S
sBirch
Known Participant
January 4, 2018
Question

Some of my proxy clips loses audio sync - why?

  • January 4, 2018
  • 3 replies
  • 3762 views

I am working with multiple cameras and proxies, having imported AVCHD sources from two cameras and mp4 from a third into separate folders.

It works so far fine, but for some reason a few of my clips lost sync on audio. When I check their original, no sync problems exist.

Proxies are made with GoPro and they, too, play back just fine and sync''ed when I locate the files on my harddrive.

But the clip in Premiere Pro CC 2018 has the sound descynced. Why? This is the 2nd project where I experience this, and I am not sure how to fix it.

Edit: I have cleaned out the media cache as explained in this post ​but it doesnt seem to help.

So, I delete the offending clip, and I try to ingest it again by locating it in the media browser. I make sure to open it in the source monitor to check it for sync problems. It plays back just fine.

So, Ingest! Now the clip works. But not with a proxy, I had to delete that.

This topic has been closed for replies.

3 replies

Kevin-Monahan
Community Manager
Kevin-MonahanCommunity Manager
Community Manager
January 13, 2018

Still having trouble with this sBirch? Let us know.

Thanks,
Kevin

Kevin Monahan - Sr. Community and Engagement Strategist – Adobe Pro Video and Audio
S
sBirchAuthor
Known Participant
January 15, 2018

Yes, I had to scrap the proxies and revert to full clips. Cleaning cache did not help, PP still imported the proxy with the clip audio synch off. I will finish up this project now, but I have another coming up next week where I will attempt this again.

Søren

S
sBirchAuthor
Known Participant
January 9, 2018

Yes they are ingested and converted to GoPro proxies. 11 out of 12 clips are fine, but one has its synch off. Funny is, it is synched fine in the proxy it self when I play it back with a media player. It is in the project that it goes awry.

R Neil Haugen
R Neil Haugen
Legend
January 4, 2018

Are these proxies created by the ingestion process in PrPro, or ones you have made elsewhere?

Neil

Everyone's mileage always varies ...
S
sBirchAuthor
Known Participant
January 9, 2018

Yes they are ingested and converted to GoPro proxies. 11 out of 12 clips are fine, but one has its synch off. Funny is, it is synched fine in the proxy it self when I play it back with a media player. It is in the project that it goes awry.

T
Trent Happel
Participating Frequently
February 1, 2018

Proxy media is created by PP during Ingest (CinePro GoForm or whatever).

Proxy media plays back fine from harddisk in QuickTime or WindowS Media player - no synch issue

The same clip, as proxy in PP, is off sync.

After clearing cache as per instructions FAQ: How to clean media cache files? does not fix it. Only solution I could come up with was to remove proxies.


For the Proxy clip that is not in synch, can you verify that the Proxy clip matches the original/Full Resolution clip? When the Proxy is attached, select the clip, right-click and select Properties. You should see Properties for the original clip and the Proxy clip below that. Make sure that the frame rate, duration, fielding and audio channels match between the original and Proxy.

If these four items in the Proxy do not match the original clip, you can run into issues.

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