[PD] parametric equalizer

Alexandre Torres Porres porres at gmail.com
Thu Apr 19 16:56:13 CEST 2018


Not a ready made multi band equalizer, but the 'else' library also has a
biquad coefficient generator, which offers more options than the ggee
library (see else/bicoeff). Else also has ready made filters that don't
require biquad~ and take audio signals to control all the parameters (ie.
[else/eq~], [else/lowshelf~], [else/highshelf~], etc).

I thought about making a ready made parametric in else, but you can easily
build it  your own. For the lowest and highest band you need to use
lowshelf and highshelf respectively. Then use "eq~" for the mid bands.

cheers

2018-04-19 7:01 GMT-03:00 Christof Ressi <christof.ressi at gmx.at>:

> have a look at the "ggee" library!
> there are a couple of objects which mimik the usual EQ filters and output
> coefficients for [biquad~].
> besides [lowpass], [lowshelf], [highpass], [highshelf], [bandpass] and
> [notch] there's also a [equalizer] object which is a typical peeking filter
> with settable center frequency, bandwith and gain.
>
>
> Gesendet: Donnerstag, 19. April 2018 um 11:45 Uhr
> Von: "Raphaël Ilias" <phae.ilias at gmail.com>
> An: pd-list <pd-list at lists.iem.at>
> Betreff: [PD] parametric equalizer
>
> Hello dear pd lovers,
>  I wonder if someone as implemented a parametric equalizer similar to the
> ones you find on mixer : like three band LOW MID HIGH, with -/+ X dB so
> that when everything is +0 dB, the output is flat and similar to input.And
> eventually with Q/curve/spectral transistion parameters ?
>  I know this is a very large question and that there might be a lot of
> different implementations, but I wondered if there are "standard"
> solutions.Vanilla preferred or stable libraries...
>
>
> Thanks !
> --
>
> Raphaël Ilias
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