Participant

Question

Need to convert 60 fps to 24 fps without slow motion?

Forum|Forum|12 years ago
December 31, 2013
5 replies
183746 views

Just as the headline says. I shot a wedding and accidently forgot to change the frame rate (Sony AVCHD, if it matters). I need the clip to get to 24fps without using slow motion (I need it to look real time) and I need the audio from the clip as well. So, clearly going to Interpret Footage>Frame Rate won't work because the audio and film slow down. Even unganging it as instructed by Adobe in the manual doesn't work quite right. Any help would be greatly appreciated!

M

Muthu38857481qxk1

Participant

PXL_20240728_115759252.mp4

PXL_20240728_115759252.zip

J

Julian Pham

Participant

This is the way that I found works for me the best. Maybe it's way too many steps but everyone else's methods weren't working for me. I think what I wanted was for it to look natural too with the motion blur, without which it looks jittery.

Hope this helps somebody out there!

In Premiere Pro:

Import footage
Go to CLIP - MODIFY - INTERPRET FOOTAGE
Change to 24 fps
Drop in sequence
RIght click on clip
Select REPLACE WITH AFTER EFFECTS COMPOSITION

This opens up After Effects

Go to EFFECT - TIME - TIMEWARP
Change speed to 225 (this is related to 60/24 ratio)
Click ENABLE MOTION BLUR
Change SHUTTER CONTROL to MANUAL
Change SHUTTER ANGLE to 175 (or to your taste; smaller number means less blur)
Adjust TIME RULER to get rid of excess time. Make sure the end of the ruler ends at the last frame of your footage or your export time will more than double. I learned this the hard way.
Go to FILE - EXPORT - ADD TO ADOBE MEDIA ENCODER QUEUE

This opens up Media Encoder

Make sure it's saving where you want it to and press the green PLAY button

This exports to an MP4 file and can take a really long time depending on your computer.

Once you open up the MP4, you'll find that it's not synced with the sound.

Go back to Premiere Pro and load this up in a 24 fps sequence.

UNLINK the clip and delete the sound.
IMPORT the original 60 fps file.
Drag the SOUND only to the new 24fps version. You'll see that the video is longer than the sound.
Right click the SOUND clip.
Select SPEED/DURATION
COPY the time code (you can click directly on it to get the exact time)
Exit and right click the VIDEO clip.
Select SPEED/DURATION
Paste the time code from the sound file.
They should be exact and synced.
EXPORT video file.

You're done!

P

PaulMurphy

Community Expert

If you're not happy with the results of dropping 60 fps footage into a 24 fps timeline, try this:

1. Queue your 60 fps media in Adobe Media Encoder
2. In your encoding settings, change the frame rate from 60 fps to 24 fps
3. Set the Time Interpolation to Optical Flow

This will help keep the motion smooth and the audio in sync.

Cheers,
Paul

rachelc85043790

Participant

I know I am way late to this thread BUT I am here because I was trying to figure out the same thing but through Premiere Pro. For anyone here looking for an answer, I figured out a way to do it just in Premiere Pro (Not AE).

So I started with a timeline of 60fps, modified all of my footage to 24fps to make sure I have all of the slow-mo I want, then I followed these steps to get an authentic 24fps look for particular clips in real-time:

-Start a new sequence just to use for conversions but make the sequence a 24fps timeline

-Drop clip in the 60fps timeline

-Raise speed to 225%

-Drag that clip to the 24fps timeline

-Nest the clip into a new sequence (that way it nests the motion blur from the 24fps timeline)

-Drag that nested clip back onto the original 60fps timeline with the rest of your project

I hope this helps anyone looking for that answer!

afkvisuals

Participant

You can actually just create a 24fps sequence and drag your 60 FPS clip into it. It will play normal speed at 24fps. If you want to slow it down you still can because Premiere still can access the additional frames even though it’s playing back at 24fps.

P

paulc66180124

Participant

If I were to put my 60fps video into the 24fps timeline, and export that video. Would the video essentially have converted into 24fps, but still playback at a regular speed? I am trying to rotoscope over a video, and need it to be in 24fps instead of 60fps so that I don't have to animated 60 frames for one second lol. Thank you!

R

reesel9291230

Participant

Drop the footage into the project, then interpret the 60 fps to 24 fps. Drag footage into timeline. Then right click clip in timeline and select replace with after effects composition. Then use timewarp effect to speed the footage back up to normal speed, I believe 225% should do the trick. Most Importantly make sure to select enable motion blur. I usually select the manual option under the shutter control and set the shutter angle to 180 at 5 samples.

In most situations this fixes the shutter speed difference when adapting frame rates.

SlushierCashew

Participant

A great workaround, though I found I had to convert everything in AE instead of being able to link out the footage from Premiere. Either way, gives perfectly smooth footage with lovely motion blur.

Steven L. Gotz

Inspiring

You simply create the sequence the way you want it to be and drop your footage on it. When asked if you want to change the sequence settings to match the video, tell it "no".

The video will play at the normal speed.

Only if you interpret the footage do you get slow motion. Otherwise the 60fps footage plays back at 24fps by dropping 60% of the frames. Which is not the same as recording it at 24fps because the shutter speed was a lot faster, but it should still look fine.

artofzootography.com

S

Samara28711321zgw9

Participant

It's 2023 and this solution was so helpful! Thank you so much! I could hug you right now!

Sign up

To post, reply, or follow discussions, please sign in with your Adobe ID.

Sign in to Adobe Community

To post, reply, or follow discussions, please sign in with your Adobe ID.

Scanning file for viruses.

This file cannot be downloaded