I think the maximum Q factor without ripple (i.e Butterworth) is 0.707. Le mer. 27 avr. 2022 à 21:07, Alexandre Torres Porres <[email protected]> a écrit :
> Em qua., 27 de abr. de 2022 às 11:54, Roman Haefeli <[email protected]> > escreveu: > >> Isn't a low steepness in the filter in the feedback loop desired >> anyway? Me thinks a low steepness means the change in timbre happens >> more slowly which - I imagine - would sound nicer than a sudden >> 'tziewhh'. > > > Interesting discussion. The suddenty depends on the cutoff frequency as > well, and also on the decay/feedback parameter. I guess my problem with the > lop~ (a single 1-pole) like filter is that it doesn't work well for higher > frequencies. Perhaps a 1-pole and 1-zero filter is better as we need a > proper zero at nyquist. The original 2 sample average filter in the KP > algorithm is actually just that, a single 0 at nyquist, but it's only a > quite high cut filter and you can't set a proper cutoff frequency. > > I guess I have to test and see how different does it sound and how more > efficient it is. > > I already just broke my pluck~ object for a better design maybe I'll also > change the default filter inside. > > cheers > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > https://lists.puredata.info/listinfo/pd-list >
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