Hot answers tagged after-effects
To drive an animation by another layer use the pick whip or the selection list to parent it. In the following example the Camera (layer) adopts all animation properties of the Null. Note: Camera is a 3d layer in your case, make sure 3d layer toggle is enabled for the Null too.
I think if I was going to do this quickly as a one-off, I'd cheat. I'd open the audio file in an audio editor, like Audition or Audacity, grab a screenshot, then modify that screenshot in Photoshop & AE until I got the look I wanted in After Effects. If you need a scrolling line through it as it plays, just position a line at the beginning of the ...
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