I'd rather use a more proper bandpass filter than bp~, which does note have a nice symmetric response. You could use [biquad~] instead, but the issue is that you'd need to generate coefficients for it. I provide the [else/bicoeff] object in else that calculates biquad coefficients and I just uploaded an update in my tutorial that shows how to do that by hand in a pd patch, see: https://github.com/porres/Live-Electronic-Music-Tutorial/blob/master/Tutorial/Vol.2/Part.09-Filters-Reverb-Karplus/31-Filters(Advanced)/2.Filters/4.EQCookbook.%5Bbiplot%5D.pd
Em seg, 24 de jun de 2019 às 12:04, William Huston <williamahus...@gmail.com> escreveu: > I have one I built, it's basically 3x bp~ stages in parallel, with each > stage being a double bp~ in series. > > Get it here: > https://github.com/WilliamAHuston/BHPDtoolkit > > It's called: > abstractions/BHFormantx3~.pd > also > abstractions/FormantControl.pd > > I have a fake resonance built in, basically an osc~ at the cutoff freq of > the filter which you can blend it. > > It's not pretty, I built this as a PD novice. But it works well. > > (You may want to grep through the patches folder to find some examples > where I use this.) > > One use I found for it, which is very cool, is to create a source which is > rich in overtones, saw or square or a gritty granular snippet, send it to > the filter. > > Tune the 3 bp~'s to a chord, and use a midi controller to set the root of > the chord, to play melodies *on the filter*. > > HTH, > BH > > > > On Mon, Jun 24, 2019, 1:50 AM Ingo <i...@miamiwave.com> wrote: > >> OK! I just googled "Formant Table" and got lots of results with the >> frequencies of each formant. >> I guess by using 3 bandpass filters I should be able to build one as an >> abstraction. >> >> Ingo >> >> > Can anyone point me to a formant filter external that is working and not >> too heavy on the CPU? >> >> >> >> >> >> >> _______________________________________________ >> Pd-list@lists.iem.at mailing list >> UNSUBSCRIBE and account-management -> >> https://lists.puredata.info/listinfo/pd-list >> > _______________________________________________ > Pd-list@lists.iem.at mailing list > UNSUBSCRIBE and account-management -> > https://lists.puredata.info/listinfo/pd-list >
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