Weird jerky echo audio problem - preview and render

Hi Kevin,

Only just seen this because for some reason emails from this forum are not getting through to my gmail account. I solved it, but I'm afraid I don't recall how. I have a feeling it wasn't a fault with AE, or if it was, it required untangling multiple imported precomps, so a niche issue perhaps. I've moved over to Premier for such projects now.

All the best,

Jack

Without exact technical info about the files, previews settings, audio preferences etc. Nobody can tell you much. that being said, your project stats "used 4 times" for the selected audio file, so chances are you are simply seeing some overlap from multiple uses in pre-comps or whatever with the answer being then to turn off extraneaous uses of audio in those places.

Mylenium

After Effects doesn't like compressed audio.  I see you're using audio from mp4 files, and they could be the culprit.  I would do an audio-only export from those mp4's, saving them as wav files, and just turn the audio off on the video clips.  See if it helps.