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wesleym85465781
wesleym85465781
Participant
December 1, 2022

Sony A7s3 HEVC Video's Audio in Premiere Pro is out of Sync with Footage, but not H.264 Proxies

  • December 1, 2022
  • 返信数 12.
  • 1745 ビュー

Hi, we record our footage on a Sony A7s3 in the 4k HEVC 10-Bit. Whenever we import the footage into Premiere Pro, the audio is out of sync with the footage by about 1 frame. We noticed this because we also use the H.264 proxies recorded by the camera. When we toggle the proxies, the footage stays in the same spot, however the audio waveform shift by about 1 frame. The thing is the proxy's (h.264) waveform is correctly synced with the video, but the original media's waveform is not. 

 

I did a test by recording  H.264 on our Sony A7s3, and that footage was synced correctly when we imported it into premiere pro, so it seems it is only an issue with the HEVC Codec.

 

I importat the HEVC files into DaVinci resolve, and they are correctly synced there. So it seems to also be any issue in premiere pro.

 

Right now our solution is just to manually sync the video to our external audio recorder's audio file.

 

We'd like to continuing editing in premiere because our workflows are based around it, but this issues causes alot of errors and slows us downl. Does anybody have recommendations on if this issue is common, and/or if it can be fixed?

 

Premiere Pro Version 23.0.0

Computer Specs attached

    このトピックへの返信は締め切られました。

    返信数 12

    jamieclarke
    Community Manager
    jamieclarkeCommunity Manager
    Community Manager
    October 29, 2024

    updating status to Fixed in 24.1

    R
    RedFox
    Participant
    October 27, 2023

    Hey Fergus,

    Just updated to Premiere Pro 24.0 (Main release) and we are still experiencing the same issue. 2 Frame delay in XAVC HS (h.265). Has the bug been fixed in the main release? Or still only in beta?

    wesleym85465781
    wesleym85465781作成者
    Participant
    August 1, 2023

    Thanks for the update @Fergus H ! We'll download the the beta and let you know if we have any feedback. Thanks to you and your team for fixing this bug!

    Fergus H
    Community Manager
    Fergus HCommunity Manager
    Community Manager
    July 27, 2023

    Hi all, 

    My apologies for the long delay in getting back to people in the thread on this issue. I wanted to let you know that a fix for this problem is currently in the beta release of Premiere Pro. Beta versions of our apps are available in the Creative Cloud Desktop app, in the Beta apps section. 

     

    We'd appreciate your feedback to ensure that the fix we have in the beta works for you. The final release of this fix will come later this year. 

     

    Thanks,

    Fergus

    S
    Stefan P
    Inspiring
    April 25, 2023

    Hi I have same problem with editing Sony FX3 files.
    I want to make proxy files and editing with them, but I can't make proxy with Media Encoder, because it doesn't support mov with h264 codec.
    So I must make with different program and there is the problem. When I convert-make proxy, audio in resulting file is with 1-2 frame delay.So when I finish editing and watch with original file I was very surprise that audio cuts and keyframe is not in the right place and some parts of word are cut.
    I have PC and MAC and the problem is on both system.
    Software for proxy that I try on MAC is: Final Cut, Resolve, Shutter encoder
    Software for proxy that I try on PC is: Edius, Resolve, Shutter encoder

    Then I start to compare audio waveform of Source-Original(not proxy) video file on every program, and then I see that on Final Cut, Resolve, Edius audio is in the same position except in Premiere pro, where is with 1-2 frame desync. In the screenshot in Premiere you can see audio waveform on Track 1 is "ahead" and cut from beginning, compare to all other tracks.

    I check different version of Premiere v23.3 and v15.4.5 on PC and MAC and it is the same.
    I think the problem is how Adobe implement Sony XAVC decoding.

    wesleym85465781
    wesleym85465781作成者
    Participant
    December 8, 2022

    @Fergus H 

     

    Great, thanks for looking into this Fergus!

    Fergus H
    Community Manager
    Fergus HCommunity Manager
    Community Manager
    December 8, 2022

    Hi Wesley, 

    Thanks very much for the detailed description of the issue; very helpful. I'm going to send you an email to get some more information. 

    Regards,

    Fergus

      Kevin J. Monahan Jr.
      Community Manager
      Kevin J. Monahan Jr.Community Manager
      Community Manager
      December 7, 2022

      Thanks for the message. The information and screenshots are helpful for the devs (I am not on the Premiere Pro team directly).

      quote

      ...the H.264 clips that are in sync have their video and audio in Media Info off by about 3-5 ms as well. other editing programs seem to have both H.264 and H.265 footage in sync.

       

      Ah, interesting. Thanks for letting me know.

       

      quote

      ...other editing programs seem to have both H.264 and H.265 footage in sync.

       

      I just tested importing the footage into Final Cut Pro X and the H.265 footage is in sync there.

       

      Thanks, the devs will appreciate those findings. Other NLEs and Premiere Pro are not always aligned in how long GOP footage is interpreted or handled. Check out this bug report; It leaves me curious about what's going on in those labs. 

       

      Let me get the team's eyeballs on this thread. 

       

      Thanks,
      Kevin

      Kevin Monahan - Sr. Community and Engagement Strategist – Adobe Pro Video and Audio
      wesleym85465781
      wesleym85465781作成者
      Participant
      December 7, 2022

      @Kevin-Monahan 

       

      Unfortunately I don't think that's the issue because the the H.264 clips that are in sync have their video and audio in Media Info off by about 3-5 ms as well. And other editing programs seem to have both H.264 and H.265 footage in sync.

       

      I just tested importing the footage into Final Cut Pro X and the H.265 footage is in sync there, which is why is why I think it something specific to the way Premiere Pro is reading the footage.

      Kevin J. Monahan Jr.
      Community Manager
      Kevin J. Monahan Jr.Community Manager
      Community Manager
      December 7, 2022

      Thanks for doing all the screenshots. MediaInfo shows that the audio and video streams have different durations. Do you suppose that could be the issue? Let me know. 

       

      Kevin

      Kevin Monahan - Sr. Community and Engagement Strategist – Adobe Pro Video and Audio
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