[sdiy] Filter Help

Olivier Gillet ol.gillet at gmail.com
Fri Feb 23 09:34:53 CET 2018


The Shruthi is 0.46878 V/Octave (128 semitones mapped to 5V). That's why
you must find it very sensitive to CV!

For a 2164 CV scaling circuit with V/O adjustment, check the Ripples
schematics:
https://mutable-instruments.net/modules/ripples/downloads/Ripples-v40.pdf
(Around B2).

It's not specific to any filter type.

On Fri, Feb 23, 2018 at 1:41 AM, Tim Ressel <timr at circuitabbey.com> wrote:

> Hi
>
> I am trying to get a 2164 SVF design to behave. I can't seem to get the
> frequency scaling right. It is very sensitive to CV. I thought you can make
> a volt/oct filter out of it. btw I am going off the Shruti schematic.
> Anyone got some stick time on this puppy?
>
> --
> --Tim Ressel
> Circuit Abbey
> timr at circuitabbey.com
>
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