Per-harmonic additive synth effects — ideas?

[sudara]

@oot

Say you want all of the odd harmonics to quickly die out and all of the evens to ring out and get darker. All you would need to do is open the graph for decay, select “odd”, do one curve, then select “even” and do another taller curve.

Ah sorry, I misunderstood. The “envelopes” tab provides tools for changing and altering the envelope sections across harmonics (and visualizing those changes in context of the whole note).

I’m not a super-fan of editing isolated parts of an envelope (like offset or attack) because they alter what happens further down the envelope and it becomes sort of difficult to mentally visualize, especially since it’s 3D (amplitude over time across harmonics). Having some common shapes have felt flexible enough (though pushing around custom shapes would be fun!)

@oot

more like a noise gate than a compressor, where all partials below a certain threshold would be reduced, so the emphasis on the most resonant frequencies would be exaggerated.

Interesting stuff! Thanks for sharing. I also really liked your per-partial portamento idea too — i have an old note about a “portamento deluxe” that migrates partials from one note to the nearest partial of another. Unfortunately pitch stuff is my engine’s current weak spot right now, so it’ll take probably some solid work to gain full independence there!