Sync photos with audio
I'm working with a music video where I want photos to flash by the eights of the song. I have made a click track and converted it to keyframes, so I have the eights as keyframes.
Is there any way I can select all photos and make them sync to the keyframes or do I have to do this manually?
[Johan Bakke] "Is there any way I can select all photos and make them sync to the keyframes or do I have to do this manually?"
Put all your photos in a precomp (let's call it PHOTOS), set the duration of each photo to be one single frame, then use the Sequence Layers Keyframe Assistant [link] to put them all back-to-back with no overlap.
In your main comp, select your PHOTOS precomp layer and enable Time Remapping. (Either go to the Layer menu, select Time, then select Time Remapping, or press the shortcut key Ctrl+Alt+T on Windows, Cmd+Opt+T on macOS).
Alt+click the animation stopwatch for the Time Remap property and paste this expression:
You will need to modify one line: the one that starts with
Delete the rest of that line, then use the pickwhip to select the property in your timeline that contains the keyframes. Don't forget to add a semicolon at the end of the line.
The precomp will advance one frame for every keyframe in your linked property.
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