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Hyperbeast
Hyperbeast
Participant
April 11, 2019
Answered

Why does my clip go into slow motion every time I play the clip back?

  • April 11, 2019
  • 8 replies
  • 72770 views

Hello, I am a new user of Adobe After Effects and I am experiencing and issue where whenever I try to playback my clip, it plays back at normal speed for a few seconds but then it just randomly goes into slow motion. It wasn't like that at first. I figured it might be something to do with the time stamp? I am not quite sure how to fix it and it is very annoying to have to keep pausing and playing it again to get it back to normal speed. But it doesn't matter what I do because it goes back into slow motion. Any ideas on might be happening? Help would be appreciated!

      Correct answer Warren Heaton

      For clarification, "RAM Preview" is the old name for Preview, last used in After Effects version 13 (CC2014).

      Since AE version 14 (CC2015), it's just called Preview.

      AE version 13: Composition > Preview > Ram Preview

      AE version 16: Composition > Preview > Play Current Preview

      If a Preview is not realtime (as appears to be the case here), the first thing to try is a lower Comp Resolution setting (View > Resolution > Full, Half, Third, Quarter, Custom).  If at Full, try Half.  If at Half, try Quarter.  Another option (although not ideal) is to render a movie at settings that will play back well on the workstation being used.

      8 replies

      S
      Sasha24633135v5z8
      Participant
      May 27, 2022

      Hey I know this is old but I'm having the same issue but nothings working. Checked on RAM, everything's closed, reducing the resolution, reducing the quality, restarting AE afterwards -- still nothing. The video remains to go slow and I can barely get past 2 seconds without it repeating itself, lagging forever. Please is there any updates answer?

        M
        Murdexrr
        Participant
        December 11, 2022

        Bro this is literally me! like i'm trying to edit but it's so slow like i don’t want that, i don’t have any apps in the playback or anything it's all ok but it's slow like bro i need help 😂💔

          M
          mateo5F98
          Participant
          November 10, 2020

          genius with the resolution trick 

           

          S
          spasse20
          Participant
          May 11, 2020

          I tried that. But it didn't work. 

          Hyperbeast
          HyperbeastAuthor
          Participant
          April 13, 2019

          I think I found the fix. Thanks for the suggestions/tips!

          T
          Twiztastic
          Participant
          October 3, 2019
          He bro , i have the same problem.When i add effects it becomes really choppy and slow really enoyying. How did you manage too fix this? really curious 🙂
            Hyperbeast
            HyperbeastAuthor
            Participant
            April 13, 2019

            Oh okay, that makes sense. That's probably why I couldn't find the option. I didn't know that they changed the name in the update. As well as I have 8gb of RAM.

            Conrad_C
            Community Expert
            Conrad_CCommunity Expert
            Community Expert
            April 12, 2019

            How much RAM is in your computer, and do you have other applications open?

             

            I'm wondering if After Effects is having to toss out preview frames it cached in RAM, if the preview duration is longer than there is RAM to store all the frames. That would cause it to slow down to re-render the tossed frames on the next preview playback pass.

             

            If that's the problem, try closing all other open applications so that After Effects can have access to as much RAM as possible. Or try reducing the preview options (size, frame skipping) to reduce the total RAM requirement of each frame and/or the number of frames to preview. Or shorten the Work Area as much as is practical and then make sure the Preview panel is set up to preview only the Work Area, again to reduce the number of frames to keep in RAM.

              T
              Twiztastic
              Participant
              October 3, 2019

              He man, i have the same problem and gived adobe acces for all the ram i have , dont have any programs open or anything else. Tried this but no results, when i add one effect like reflection or distortion becomse really choppy and slow. I have a i74790k and gtx1080ti 16gb ram, and using ssd

              Warren Heaton
              Community Expert
              Warren HeatonCommunity ExpertCorrect answer
              Community Expert
              April 12, 2019

              For clarification, "RAM Preview" is the old name for Preview, last used in After Effects version 13 (CC2014).

              Since AE version 14 (CC2015), it's just called Preview.

              AE version 13: Composition > Preview > Ram Preview

              AE version 16: Composition > Preview > Play Current Preview

              If a Preview is not realtime (as appears to be the case here), the first thing to try is a lower Comp Resolution setting (View > Resolution > Full, Half, Third, Quarter, Custom).  If at Full, try Half.  If at Half, try Quarter.  Another option (although not ideal) is to render a movie at settings that will play back well on the workstation being used.

                Justin Taylor-Hyper Brew
                Community Expert
                Justin Taylor-Hyper BrewCommunity Expert
                Community Expert
                April 11, 2019

                Depending on the footage, you may need to ram preview before playing back in real-time. If you find yourself doing this a lot with raw footage, you're probably better off editing in Premiere first, and then bringing the edited clips into AE. Also, you may want to consider transcoding to a better format for comping (ProRes, Cineform, or DNxHD)

                Hyperbeast
                HyperbeastAuthor
                Participant
                April 12, 2019

                Oh okay thank you. I also noticed that I don't have a ram preview option. Is there a way to enable that? Because normally it should come up by default which I've noticed on video tutorials.

                OussK
                Community Expert
                OussKCommunity Expert
                Community Expert
                April 12, 2019

                Go to window/preview and try to set this settings in the preview panel

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