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Question

MTS Files out of sync after importing into Premiere Pro 2019

Forum|Forum|6 years ago
December 29, 2019
7 replies
4177 views

When I import my MTS files into Premier Pro 2019 the audio is out of Sync? Why is this happening and how can I rectify this as it makes this version useless to me

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MyerPj

Community Expert

Yes, you got it, adding in the 2nd clip does cause the problem. I played with it a bunch and best I could come up with is remuxing to mp4. But I'm not totally confident with the results. With the MTSs I tried many preview formats and all were basically the same. It would be good to get some upvotes going on the UserVoice and see if Adobe will be doing anything with that. Also, the staff will be back in next week and maybe Kevin will see this and can comment.

If you want to try the ffmpeg with mp4's you add two bat files to the folder each with one line of code:

I had code in here cause I couldn't find the upload button which is down below as a paperclip. Then it wouldn't take .7z, .zip or .bat of course. So, I renamed them .txt, so if you want to try this, just download those two files, rename them .bat and with ffmpeg.exe and your .mts files - you are good to go. Each .bat has one line of code and I've put that in as a code window below so you can see it and confirm in the .txt files.

With the MTS's in the folder with the two bat files and ffmpeg.exe you call the first one and on my reasonably quick machine it took about 5 seconds to convert each one.

1st File: Named RemuxMts.bat
for %%F in (*.mts) do remuxmts2.bat "%%F"

2nd File: Named RemuxMts2.bat
ffmpeg.exe -i %~d1%~p1%~n1.mts -c:v copy -c:a copy %~d1%~p1%~n1.mp4

RemuxMts.txt

RemuxMts2.txt

Ann Bens

Community Expert

Troubleshooting linking and importing errors with MTS and MP4 files after updating to Premiere Pro CC

MyerPj

Community Expert

Hmm... based on my last post from what I was reading on UserVoice regards this issue, I thought for sure I'd see a sync problem on this. But, it looks like it's in sync. Basically I played back towards the beginning until the lights went on, and could follow the cymbal crashes... then I went to the end, and they looked still in sync, even the last note where he was wiggling the frets on the lead guitar looked synced. So not sure what the deal is. I tried also with a 1080p sequence rather than the 1080i it created for me, and still looked in sync.

Did you try a new project and dropping in just the one clip you sent me, (actually rename that clip to some name you have never used) and seeing what happens. If there is something else I should look for let me know?

PP 14.0, Win ~~1903~~ 1909

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rockdown1965Author

Known Participant

Yep one clip by itself is fine, when you add more clips than the sync goes out, reading that article seems the main issue others were having. Ic ould upload a second clip so you can see the issue?

MyerPj

Community Expert

Yes, go ahead, I'd like to see what's happening. Did you see the link Ann left?

MyerPj

Community Expert

Looking into this a bit more, it seems there are some known issues regards .mts file and the recent versions of PP. User Voice is the site the Adobe engineers monitor for bugs and feature requests. When they start seeing the numbers of 'votes' go up they will take more notice, thus it's best to upvote and comment rather the starting a new thread. Here's the first one I found, and has a workaround, but my eyes glazed over while reading it... 🙂

There are some other ideas on there also which seemed a bit simpler:

https://adobe-video.uservoice.com/forums/911233-premiere-pro/suggestions/34278166--mts-audio-out-of-sync-with-video-please-fix-res

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rockdown1965Author

Known Participant

Just messaged you with the link to the Dropbox folder.

Had a look at the link, damn it is intense. Cant understand why they just cant fix the program.

MyerPj

Community Expert

Sorry, I have been replying to Ann.

Did you check the Audio Hardware settings in Preferences as Ann mentioned?

I'm not sure of the answer, If you have a means of uploading a problem file I can load it up here using 2020 and see if I have the same results. Otherwise for now, try Proxies or if you'd prefer, try transcoding to an intermediate like Cineform or Prores LT. And see if that will get you working again.

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rockdown1965Author

Known Participant

Thanks, if you have dropbox I can upload there and share the link?

MyerPj

Community Expert

Yes, that'd be fine, I'll download it right away. Last time I tried PMing someone they were'nt able to respond due to this website, I can pm you from your profile page, not sure if you see a Send a Message button on my profile page?

MyerPj

Community Expert

OK, so that's 2020.

You can get the free MediaInfo program here:https://mediaarea.net/en/MediaInfo

Open a file that goes out of sync and post the TREE view info