I am wondering how to use an audio signal to modulate knobs. I am sure there are some basic methods, but what sort of more creative signal flows are there?
A basic Audio signal from a guitar is obviously problematic, as it will only scale b/w about 1-2 out of 10. It is also too fast of a modulation source.
It would be nice to have a trigger generated from a string pluck that could reset an LFO or initiate an ADSR. (I am learning that this is one approach with its own limitations and benefits).
I find videos like this get my imagination going:
I am realizing that this approach is similar to compression where you rectify the signal in order to create a cv. Makes me wonder about the difference between modelling an analog circuit and just creating a digital form from scratch. I suppose that in many ways this node based programming is necessarily like modelling analog circuits.
I see here that the peak detector in this compressor is very mathematically intimidating for me.
It would be interesting if someone wants to pull a John Madden and markup this image with an iPad or something and explain what is happening.