I'd like to make an effect that adjusts the opacity of a video clip as a result of the volume of an audio track. In the case if a regular rhythm, this would result in the video pulsing to match the beat. With that effect as an ingredient, I could then construct a wide variety of interesting results.
If the real effect isn't possible, would it be possible to use a beat finder to fake it?
I have Premiere Pro and After Effects CS3, though I haven't used After Effects much.


