[LAD] A short technote on digital state-variable filters

Will J Godfrey WillGodfrey at musically.me.uk
Fri Nov 20 19:50:18 CET 2020


On Thu, 19 Nov 2020 22:05:00 +0100
Fons Adriaensen <fons at linuxaudio.org> wrote:

>Hello all,
>
>Some people have asked me to provide a bit more documentation
>on the state-variable filters I used in zita-eq1 and zita-jacktools.
>
>So I've written a short technical note on this. You can find it at
>
><http://kokkinizita.linuxaudio.org/papers/digsvfilt.pdf>
>
>Ciao,
>

Thanks for this. Very interesting. I recognised the hardware drawing instantly.
I used a variant on an amp some years ago for splitting out sub-bass, just
using the high and low pass outputs. It made tuning to suit the actual speakers
extremely easy.

-- 
It wasn't me! (Well actually, it probably was)

... the hard part is not dodging what life throws at you,
but trying to catch the good bits.


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