This looks great. Thanks, Martin.
Dario <http://dariosanfilippo.tumblr.com> On Thu, 21 Feb 2019 at 19:33, Martin Vicanek <martin.vica...@web.de> wrote: > *Ian wrote: > Every time you modify the filter coefficients, modify the state of the > **filter so that it will produce the output you are expecting. Easy to do. > > *Ethan wrote: > A very simple oscillator recipe is [the coupled form]. However, it's not > stable as is, so you periodically have to make an adjustment to make sure > that a^2 + b^2 = 1. > > You can have both: A (hyper)stable quadrature oscillator without the need to > adjust states upon frequency modulation, and without the need to counteract > amplitude runaway:https://vicanek.de/articles/QuadOsc.pdf > > _______________________________________________ > dupswapdrop: music-dsp mailing list > music-dsp@music.columbia.edu > https://lists.columbia.edu/mailman/listinfo/music-dsp
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