Hi, that is the way I'm pointing to. I know of those but it's a bit more complicated than that. Those bypass fiters have zero values of -1 and 1, while [bp~] has only pole values. So my question is if I can achieve [bp~] by only turning the zero values of -1 and 1 to 0. I actually tried it and it didn't seem to do the trick.
Maybe I'm doing something wrong. I don't know. It'd solve my issue if I could have [bp~] as biquad coefficients. But if not, I'd need some guidelines on how to plot the frequency response in the same way as [filterview] or [mmb.filterplot] plot the biquad coefficients. Cheers 2014-04-09 8:30 GMT-03:00 Colet Patrice <[email protected]>: > Le 09/04/2014 01:45, Alexandre Torres Porres a écrit : > > Hi there. I'm trying to find a way to plot the frequency response > of [bp~]. > > > Hello, I don't know if it helps, in ggee there are filter objects that are > applying formula for biquad coefficients, it's easy to use those formula in > expr and apply them to biquad object in vanilla. > > I know of patches that can plot from biquad coefficients, so it'd be > great if I could get biquad coefficients from an input of frequency and Q. > > I see [bp~] is a 2 pole filter. So does it mean I can achieve it by > zeroing out a bandpass filter made with [biquad~]? Cause I see people make > bandpass filters with 2poles in biquad, but the zeros are at -1 and 1. I > tried zero values of zero, but it didn't look to good to make me believe > that's the same as [bp~]. > > I know of miller's example H10.measurement.pd, and compared to it, > didn't seem to fit. > > Anyway, I wanted something that would plot [bp~] right away, not like > the H10 example, which takes some time. But then, if we can't do it with > biquad coefficients, I would need some guidelines to do it some other how. > > Thanks > > Cheers > > I know about filterview and patch > > > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > > >
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