Sam Sturtivant

I was wondering if someone could help me with this patch.

I would like it so that when an incoming signal is passed into the gen object, resonance at a specified frequency will occur... but only if that frequency is already existent in the incoming signal.

I've basically got a bunch of spectral gates set at different thresholds and I would like to have a bunch of resonators after these in the signal path so that they get excited by the incoming sound but only if there is a harmonic relationship.

gen-resonator-problem

It's a bit hard for me to know what the gen~ code is doing, without any comments... but in any case the question seems to be more about filter-design. Usually, a resonant filter is more likely to "ring" if the input signal has energy at a related frequency in any case. What it sounds like you need is to design the parametric control of your filter to get the sweet spot where it is not too easily excited, but still responsive to the input. I'm not a filter design expert by any means, but I would imagine this depends largely on the feedback coefficients and the peak bandwidth (Q).

I would perhaps suggest playing with the filtercoeff~ and related objects to get a feel for the parameters. You can use them to drive a biquad (whether biquad~ or via the gen~ biquad example)?

It's a bit hard for me to know what the gen~ code is doing, without any comments... but in any case the question seems to be more about filter-design. Usually, a resonant filter is more likely to "ring" if the input signal has energy at a related frequency in any case. What it sounds like you need is to design the parametric control of your filter to get the sweet spot where it is not too easily excited, but still responsive to the input. I'm not a filter design expert by any means, but I would imagine this depends largely on the feedback coefficients and the peak bandwidth (Q). 

I would perhaps suggest playing with the filtercoeff~ and related objects to get a feel for the parameters. You can use them to drive a biquad (whether biquad~ or via the gen~ biquad example)?


Gen Resonator - problem