On Apr 19, 2018, at 11:55 AM, pd-list-request@lists.iem.at wrote:

From: Raphaël Ilias <phae.ilias@gmail.com>
To: pd-list <pd-list@lists.iem.at>
Subject: [PD] parametric equalizer
Message-ID:
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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