[PD] filters with audio rate cutoff frequency

[Dario Sanfilippo]

For time-variant one-pole LP and HP, I use these coefficients with rpole~:
http://www.earlevel.com/main/2012/12/15/a-one-pole-filter/.

They have a fairly accurate response for basically the whole spectrum.
Below .01Hz or so, you need double precision.

Dario

On Wed, 13 Mar 2019 at 19:13, Alexandre Torres Porres <porres at gmail.com>
wrote:

>
>
> Em qua, 13 de mar de 2019 às 07:30, Peter P. <peterparker at fastmail.com>
> escreveu:
>
>> * Alexandre Torres Porres <porres at gmail.com> [2019-03-12 18:21]:
>> > Em ter, 12 de mar de 2019 às 06:31, Kosmas Giannoutakis <
>> > giannoutakiskosmas at hotmail.com> escreveu:
>> >
>> > > Hi, is there any implementation of filters in Pd with audio rate
>> cutoff
>> > > frequency?
>> Forgive me if this has been posted already, but what about [vcf~] which
>> has a lowpass and bandpass output and a signal inlet for cutoff?
>
>
> yup, that and bob~ have been mentioned. I could add other lower level
> options like the raw filters [rpole~]/[rzero~]/etc) and [fexpr~], but that
> requires a deeper knowledge on how to use them. And on that topic, let me
> show off my advanced filters section in my Live electronics Tutorial, which
> presents this knowledge:
> https://github.com/porres/Live-Electronic-Music-Tutorial/tree/v-1.0beta-7/Vol.3(in.progress)/Part.09-Filters%26Reverb/31-Filters(Advanced)
>
> cheers
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