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Participant
June 12, 2025

P: Audio of AVCHD files in .MTS format with PCM audio does not play correctly - sounds like noise

  • June 12, 2025
  • 74 replies
  • 11798 views

[Subject line updated by moderator]

 

Using the latest version of PP (25.3.0) I was working on a project containing MTS video files, and all of a sudden the next day I opened up the project, and all of the audio tracks of the clips had max volume static (and nothing else). It had been working for several days. In the audio track timeline, it displays as just a solid bar, rather than a typical bar with variying levels as you'd expect (see attached). It is like this in the editor, and also if you export the video.

 

I messed with this for hours, including contacting Adobe Support Chat for about an hour. They weren't able to help. They left me with suggesting that I make sure all of my Windows updates were in place. I did that and still nothing. I messed with my video card drivers - making sure they were on the latest version, etc. I downloaded the AC3/AC4 codecs from the other Adobe post talking about MTS files not working in the latest version of Windows - that didn't help. I also have cleared cache several times, and I tried re-insatlling the latest version of PP.

 

If you open the files by themselves in Windows, they are fine. The audio is normal. They work fine in MS Clipchamp. They also work fine an older version of Premiere Pro that I downloaded (24.6.5). So, theoretically, I could start over and do this in 24.6.5, but I'd prefer to continue working in the latest version. I'm sure this is codec related or something, but I have hit a brick wall.

 

Has anyone else had this specific issue, and have you found a solution? Thanks

 

 

74 replies

R Neil Haugen
Legend
June 25, 2025

mts files have audio issues with 25.3, so they suggest reverting to 25.2 for now. The fix will probably be 25.4, but no idea when that comes out.

Everyone's mileage always varies ...
JamiF
Participating Frequently
June 25, 2025

V.25.3 updated 5 days ago.  After upgrade....  now Having issue with importing iPhone video clips . . . But worked around that.  That's not the main problem.  Clips imported from iPhone audio is fine, but clips imported from MTS file the audio is just loud humming/buzzing.  The audio is fine when I test with v v.24.6.5.  Of course all the color labels changed again but I know how to fix that.  But the audio?  That is a huge issue especially since I am working on a video project now.  Appreciate any help before I call in.  Thanks!

R Neil Haugen
Legend
June 24, 2025

Easy temporary fix, roll back one release to 25.2, and just keep working.

Everyone's mileage always varies ...
Participating Frequently
June 24, 2025

@RC-MNCPPC  100% agreed. How a bug this bad, which affects pretty much all AVCHD imports, gets by QA and still is not fixed is beyond me.

For the premium amount Adobe charges this is very sub-premium support.

This update should have been pulled.

Participating Frequently
June 24, 2025

BS, stop chastizing for upgrading and start demanding a proper update push.  If the adobe model is a monthly/annual subscription with monthly updates, they shouldn't create customers with update-regret

Participating Frequently
June 24, 2025

BTW I'm not new, I'm just under a new position and new account.  We need this fixed or pointed to the correct posting for the fix.  I can't wait a month for another update push.  We need this fix now please.

Participating Frequently
June 24, 2025

It has been several days.  Is there a fix yet?

R Neil Haugen
Legend
June 24, 2025

Their recommended process is simply to go back to 25.2. Easy to do. And keep working. 

Everyone's mileage always varies ...
Participant
June 24, 2025

Hello, I am glad to know that the Adobe team is aware of the audio issue with MTS files.

Unfortunately, I have a large project that was almost finished and it is unthinkable to redo everything.

Do we have a planned update to fix the problem?

R Neil Haugen
Legend
June 24, 2025

If you read through this thread, and several other on the forum, this is discussed and answered.

Everyone's mileage always varies ...