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AbbyGrunden's avatar
AbbyGrunden
Copper Contributor
Jun 02, 2020

Teams recording lag

Please let me know if there is any solution or work around to getting the meeting recording lag removed. In the past, there was no issue with audio and visual sync, however we are now experiencing a ...
calling
meetings
microsoft teams
elin_a's avatar
elin_a
Copper Contributor
Nov 06, 2020

I got the same problem as you AbbyGrunden. Did a live session two weeks ago and the recording went fine. However, today's sessions are all badly audio and video synced. No errors were to be noticed during the live streaming.

 

But this was the first time that I as a producer, didn't sit in the same location as the presenter. Could this affec the recorded video quality? I have never encountered anything similar with regular Teams meetings.

  • AdamOC's avatar
    AdamOC
    Copper Contributor
    Nov 12, 2020

    elin_a Have just experienced exactly the same. Live presentation was fine, but downloaded the recording afterwards and the audio/video sync was out by 2 seconds. We did a Teams Live Events in mid July and had no issues with the audio sync in that event recording.

    • NilsReichert's avatar
      NilsReichert
      Copper Contributor
      Nov 12, 2020

      AdamOCI can help you with a 'manual' workaround while this is not fixed yet:

      1. Get Avidemux ( https://sourceforge.net/projects/avidemux/  free for all)
      2. Open Avidemux.exe
      3. drag'n drop the offsync video file on it (it should be loaded)
      4. then modify following settings on the left side:
      • Enable shift, set to 1800
      • Output format, change to MP4 Muxer.
      • Video and Audio Output should still be set to 'copy' (so we just fix the audio offset but will not recode anything)

      It should look like this:

        5. Then Ctrl+S  (save) and find a nice location (usually it offers not the same location that your input video is coming from).

       

      It should be very fast, and this video should be sync.

       

      For me 1800ms worked best.

      If not for you, just change the value, move the playback slider at the bottom to a position you like to test, and then click play on the bottom left. repeat until happy with correction.

      • AdamOC's avatar
        AdamOC
        Copper Contributor
        Nov 16, 2020

        NilsReichert An update...

         

        I downloaded https://handbrake.fr/ and let it run through the video with pretty much the default settings, then took the output from that back into Avidemux and did the sync offset again and it was happy.

         

        Interestingly the resultant output file still has an audio sync issue when played with Windows Media Player, however when the same file played with VLC the audio is now fine.

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