Replay is slow even for very basic files

Question

I don't have a weak computer by any means. to be specific I have 32 gigs of ram, a 3070ti, and a ryzen 5 3600. So at the very least it should be able to handle some basic editing. But whenver I'm in aftereffects and I try to edit, not even an audio clip will play properly. Let alone footage. By properly what I mean is lets say I bring in footage, it will go unsynced for a few seconds then the audio will slow down to "catch up" to the footage in a way. Even if I just bring in an audio file it slows down to load its so weird.

thepixelsmith · Answer

Maybe it's something else but It sounds like you are describing the process by which AE builds a Preview.

Unlike video editing programs (and some other graphics programs) that playback in realtime (though sommetimes at a lower quality) AE must first build a preview in RAM (which isn't in real time) and then play it back in realtime. This process is indicated by the green line that builds at the top of the timeline when you press spacebar (or the preview button). The more complex the content on the timeline the longer (and more RAM) this build process takes.

You can speed up the process in several ways such as lowering the preview quality (the menu at the bottom of the Com indow that probably says Full).

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