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Fiona30833879qdkg
Inspiring
June 10, 2024
Question

Having audio desync issues

  • June 10, 2024
  • 4 replies
  • 1704 views

From what I have read it is most likely a VFR issue since the desyncing is occurring in mp4s that have come from OBS. I have checked and OBS itself is not the problem so I followed this guide FAQ: How to work with Variable Frame Rate (VFR) me... - Adobe Community - 10348229 but none of the media is marked as having a variable frame rate and the effect controls do not show the MPEG Source settings.

How do I fix this?

 

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    4 replies

    Kevin J. Monahan Jr.
    Kevin J. Monahan Jr.
    Legend
    June 11, 2024

    Hi @Fiona30833879qdkg

    Thanks for the note. I can understand the issue. The file you are having us inspect is over four hours long. That is at the heart of the problem. Transcoding to an editing codec is untenable for such a file, so did you encode them back to H.264? That may not be the best solution. Sorry for the frustration. It would be great to get all your information in order to help you better: How do I write a bug report?

     

    I suggest recording these lengthy streams with a hardware-based recorder so that you do not encounter these issues in the future. If that is impossible, you may want to explore other settings and test with such lengthy files.

     

    I hope we can help you find a better workflow.

     

    Thanks,
    Kevin

    Kevin Monahan - Sr. Community and Engagement Strategist – Adobe Pro Video and Audio
    Peru Bob
    Community Expert
    Peru BobCommunity Expert
    Community Expert
    June 10, 2024

    Try Preferences > Audio Hardware and set Input to None.

      F
      Fiona30833879qdkgAuthor
      Inspiring
      June 11, 2024

      I tried that but it didn't work

        P
        Community Expert
        PaulMurphyCommunity Expert
        Community Expert
        June 10, 2024

        When you say OBS is not the problem, do you mean your audio plays in sync in OBS?

          F
          Fiona30833879qdkgAuthor
          Inspiring
          June 10, 2024

          Yes. The files also plays correctly in the media player. It is only when they are imported into Premiere that they get desynced, and as far as I can tell it only happens with large files.

          MyerPj
          Community Expert
          MyerPjCommunity Expert
          Community Expert
          June 10, 2024

          You can use the free MediaInfo program to get info on your clips. Get the program from the link below and using the 'Tree' view post a screenshot of your clip info: https://mediaarea.net/en/MediaInfo/Download

           

          Use Shutter Encoder to convert the files (before editing) to constant frame rate. Maybe try ProRes LT or even ProRes PROXY format within Shutter Encoder for easy to edit formats with 'better' files size.
          https://www.shutterencoder.com/en/

          F
          Fiona30833879qdkgAuthor
          Inspiring
          June 10, 2024

          MediaInfo says that the frame rate is constant, but the audio framerate is different to the video. This info is identical for all of the files I am using that are affected by the desync. Is any of this information helpful?

          P
          Community Expert
          PaulMurphyCommunity Expert
          Community Expert
          June 10, 2024

          Try this:

          1. Duplicate your clip in the Project panel
          2. Change the duplicate's frame rate to the audio frame rate listed in MediaInfo
          3. Drag the audio of the duplicate clip into a timeline with your original video

            Does it stay in sync?
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