I am thinking I would like to make some audio spectrum effects, but I'm wondering what sorts of things after effects can do. I notice that I can create multiple sort of "drawn in" spectrum effects, for lack of a better word, but I was wondering if I could use the audio spectrum data to do move powerful things than that.
For example, can I map spectrum information to given parameters of other effects? Like, say I had a fish eye lens warp effect, can I set a frequency range to modulate paramters of the fish eye warp effect, such as radius or qantity of warp?
Or, could I sort of layer videos on top of each other which are looped, and have their playback rate controlled by whether or not certain frequencies reach a certain volume, or mapped directly do a given frequency range. So, instead of a bar moving up and down, a looped video will play forward and backwards?
What exactly are my limitations? And if I can do stuff like this, how would I go about doing it?