This one from the archives is pretty useful https://lists.puredata.info/pipermail/pd-list/2005-10/031738.html
> On Sep 27, 2022, at 2:50 PM, Roman Haefeli <[email protected]> wrote: > > On Mon, 2022-09-26 at 18:25 +0200, Jakob Laue wrote: > > > >> Actually I just need simple low-cutting > > https://github.com/reduzent/netpd-instruments/blob/main/abs/fl_reshighpass_coeff.pd > > >> from low to high frequencies and/or high-cutting from high to low > > https://github.com/reduzent/netpd-instruments/blob/main/abs/fl_reslowpass_coeff.pd > > Those two generate the coefficients that can be fed to [biquad~]. > > >> . A visual representation would be great. > > The same coeffs that are fed to [biquad~] can be used to plot the > frequency response (and phase response) with: > > https://github.com/reduzent/netpd-instruments/blob/main/abs/fl_filterplot.pd > > I don't deserve credit for them. They are based on abstractions created > by Mike Moser-Booth. > > Here is what the filterplot looks like: > > https://www.netpd.org/fl-rhip.png > > (screenshot of: > https://github.com/reduzent/netpd-instruments/blob/main/abs/fl-rhip.pd > ) > > Roman > > > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > https://lists.puredata.info/listinfo/pd-list _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
