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defaultg7stjv5ky90y
Participant
July 15, 2021
Answered

After Effects preview is around 20% faster than realtime

  • July 15, 2021
  • 4 replies
  • 2204 views

Hello !

I have a probleme with after effects that just came from nowhere, now, when iI try to open any of my projects, the preview of my projects are always slightly faster than realtime (I've calculated around 15-20% faster), so the the sound is in high speech, and it's impossible to have a real preview of my animations.

This topic has been closed for replies.
Correct answer Rick Gerard

Check the Preview Panel. Your Frame rate should be set to Auto. Any change to the frame rate in the Preview Panel will result in a change in playback speed. When Auto is selected the frame rate is enclosed in parentheses.

 

4 replies

R
Community Expert
Rick GerardCommunity ExpertCorrect answer
Community Expert
July 15, 2021

Check the Preview Panel. Your Frame rate should be set to Auto. Any change to the frame rate in the Preview Panel will result in a change in playback speed. When Auto is selected the frame rate is enclosed in parentheses.

 

    chris_fullam
    chris_fullam
    Participating Frequently
    May 21, 2024

    Thank you so much, this just happened to me in AE I thought I was going nuts

     

      M
      MaryAnne33108970rbob
      Participant
      June 4, 2024

      Me too! Thanks a million.

      B
      Community Expert
      Byron CortezCommunity Expert
      Community Expert
      July 15, 2021

      Try updating the GPU drivers and all the drivers of your computer included the Operating System. And, of course, also update as much as you can the After Effects version you are using.

      Byron.
      Andrew Yoole
      Andrew Yoole
      Inspiring
      July 15, 2021

      I'm only guessing, but I wonder if this is some kind of sample rate mismatch between your MP4 files and the rate in the AE comp.  I'd make sure the sample rate ( 41.4k? 48k?) of your MP4 files is the same in the audio preferences in AE.  

      Maybe use Adobe Media Encoder to convert your source MP4 files to an intermediate format that has the same audio sample rate as your AE project.

      D
      defaultg7stjv5ky90yAuthor
      Participant
      July 15, 2021

      I've tried but nothing better append.

      The thing is that the problem don't come only from audio, but the preview of the animated frame itself is accelerated : when the preview is at 1minute, in real time it's around 50seconds.

      Yesterday everything was working fine, but on a big object, After Effects have switched from" Hardware preview" to something like "Software preview". At the moment nothing really changed, but now that I've reboot my computer, I've this problem of everything being accelerated by around 20%.

      Andrew Yoole
      Andrew Yoole
      Inspiring
      July 15, 2021

      Please post more info about the problem projects.  What frame rate is the source footage and the comp setting?  What resolution?  What format source files are used and where were they acquired?

       

      Do you have any external devices like a Blackmagic or AJA I/O device?  Do the images stay in sync with the sound?  When you render an output file does it play normally?

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      defaultg7stjv5ky90yAuthor
      Participant
      July 15, 2021

      This appen on all my projects, with any framerate, any resolution, I use Illustrator files with mp4 only. Images stay sync with the sound as the preview seems juste to be accelerated. When I put the project in Premiere Pro, there is no problem, it only appen in After Effects.

      D
      defaultg7stjv5ky90yAuthor
      Participant
      July 15, 2021

      Btw I have no external specific devices, juste a keyboard and a mouse.

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