I've been playing with an oscillator using feedback as a source of phase-modulation, i.e., y(n) = sin(t + ky(n-1)) where k is the amount of feedback. Here is an example: https://www.desmos.com/calculator/hj7u3s7tzb.
I've noticed that fast modulations of k (such as you'd see by attaching k to a 'plucky' ADSR envelope) have a detuning effect on the pitch of the oscillator. For instance, quickly modulating from 1 to 0 makes the pitch sound sharp.
I'm interested in finding a workaround for this that permits fast modulations, and I wonder if anyone has any ideas about how this could be done. Is it possible to retain the sound of feedback modulation without the detuning effect?
I've noticed that fast modulations of k (such as you'd see by attaching k to a 'plucky' ADSR envelope) have a detuning effect on the pitch of the oscillator. For instance, quickly modulating from 1 to 0 makes the pitch sound sharp.
I'm interested in finding a workaround for this that permits fast modulations, and I wonder if anyone has any ideas about how this could be done. Is it possible to retain the sound of feedback modulation without the detuning effect?
Statistics: Posted by davidspry — Wed Aug 07, 2024 12:36 am — Replies 0 — Views 78