P: .MTS video and audio not synched on Mac OS and Adobe 24

[Patricia227709208kyp]

I am using a MAC Studio M2 machine for video editing.  Once I updated my OS to Sonoma 14.6.1 and Adobe Premiere to 24.6.1, I began having issues with importing video files.  When I import a .MTS (AVCHD) video in Premiere Pro, there is an audio drift of approximately 20 seconds.  

I did not have any issues when the OS was Ventura 13.6 or an older version of Sonoma and Abobe Premiere was 24.2.1. 

I am not sure what the issue is at this point.  

[Kevin-Monahan]

Hi @Patricia227709208kyp,

I'm glad to hear from you. Thanks for the bug report. If my memory serves me, macOS is supposed to handle decoding the audio portion of that file, but it sounds like that is not happening. I hope the product team will respond soon with a plan to fix this bug. The bug may take some interaction from other parties, so I'll have to ask for your patience. Sorry for the issue.

Thanks,
Kevin

[Ashley30480610lfiq]

I am having major issues....

I thought it had to do with my mic being hooked up to the camera, but even old videos I have worked on before are having issues...

I record on a camera with a mic and play it back. Everything is synced and fine.

The minute I upload it to Premiere Pro, the audio and Video aren't even close...

I really need hellp with this as I have googled everything and do not understand why it is even doing it with old videos I have gotten to work before. 

Thanks,

Ashley

[Rach McIntire]

Hi Ashley, 
That sounds super frustrating.  Can you give me a bit more info?  What file/format/frame rate are the videos you're trying to import in?
What version of Premiere are you in?  ALso, are you bringing them in to a new project or one that already exisits?

[Ashley30480610lfiq]

Hi Rach,

They are .MTS files. It says the frame rate is 23.98 frames/sec.

I have tried a new file and adding video to new files. 

[Rach McIntire]

A bug report has been filed and we are investigating further.