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Prithviraj Dev
Prithviraj Dev
Participating Frequently
April 13, 2018
Question

After Effects importing 'slo-mo' video as 44.172 FPS by default

  • April 13, 2018
  • 2 replies
  • 2807 views

Hi guys,

I am fairly new to AE, so forgive me for asking what may seem like a basic question.

I shot some footage on my iPhone 8 using different FPS a while back.


Regular videos were shot in 60 fps, while the slo-mo ones were shot in 240 fps.

Now, when I tried to import them directly into the project, there would be a ton of issues while doing a RAM Preview.

After having a word with Adobe, they told me AE and Premiere Pro can't 'handle' iPhone footage directly and I need to put it through Handbrake first.

The settings I used in Handbrake were:

FPS: Same as source

Constant Framerate ticked instead of Variable Framerate

I did that and while the RAM preview issue has been sorted, I have noticed that there are some other issues.


The first big one is that each time I click on Spacebar to RAM Preview, the preview stops around the 15 second mark rather than complete the video. It doesn't stutter there, it just loops back to the start. I have to move the playhead/time indicator ahead manually each time I want the video to playback more.

And this particular issue is with all sorts of video, regardless of FPS.

And while the regular videos (60 fps) show come up in the project panel as they should, the slo-mo videos come up as 44.391 fps by default.

When I see the info on those files on Finder, they show 240 fps only.

So I'm wondering if you guys could help me out on this.

Just to add some information, when I RAM preview the slo-mo videos, they seem to play back as they should but the composition settings show 44.391, unless I specifically change them to 240 fps, of course.


And since we are on the topic, I must admit all the different FPS settings are really bewildering for me.

I understand it depends on what kind of 'look' you'e going for, but I would like to know how you incorporate slo-mo videos into your projects (what kind of settings, tweaks to audio etc).

What are the pluses of say, having an entire project in 60 fps as compared to one in 24 fps. If your camera can shoot in 60 fps, should you always shoot in it and then convert to 24fps (if yes, then what is the best method?).

Appreciate you guys taking out the time to help out.

Thanks,
Prithviraj Dev

This topic has been closed for replies.

2 replies

Kyle Hamrick
Community Expert
Kyle HamrickCommunity Expert
Community Expert
April 20, 2018

Regarding the issue of the RAM preview not going as far as you'd like - you're probably running out of RAM. You haven't given us any machine specs, so I can only make assumptions here.

I would advise you take a look at the preview settings you're using. You might experiment with setting it display at a lower resolution and/or skip frames. Preview without rendering in After Effects


You might also need to purge your cache. Memory and storage in After Effects


Lastly, unless you're doing specialized things that really require After Effects - it's possible Premiere would be the better environment for this project anyway? And/or only utilizing AE for specific shots that require it?

Prithviraj Dev
Prithviraj DevAuthor
Participating Frequently
April 20, 2018

Hi Kyle,

I do not believe it is a case of lack of RAM.

However, here are my machine Specs:

So, I have seem to have figured out the bug, it plays back to 15 seconds, no more no less.

If I place the playhead at the 15 second mark after it has started to loop from the beginning, it plays till 30 seconds and so on and so forth.

According to me it seems like a bug fix, hopefully Adobe will look into it.

And this is the case with all videos of any size/fps/resolution.

I have reduced the resolution of the preview, but to no avail.

Yes, you are probably right that Premiere Pro is the better software in this regard but still felt strange that such a basic task was not 'compatible' with AE

Dave_LaRonde
Dave_LaRonde
Inspiring
April 13, 2018

If at all possible, you should re-shoot the footage.

Before you do, get a good app for the iPhone that forces the camera to shoot at a fixed frame rate.

There is an old adage used at the dawn of computers: "Garbage in, garbage out."

At the moment, you just have garbage going in.  It should be no surprise that you have garbage coming out.

    Prithviraj Dev
    Prithviraj DevAuthor
    Participating Frequently
    April 13, 2018

    Hi David,

    While I will keep that in mind for the future, It doesn't really help me right now as I cannot re-shoot the footage.

    Thanks,

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