[sdiy] Filters

[Magnus Danielson]

From: Juho Lepistö <juho.lepisto at pp.inet.fi>
Subject: Re: [sdiy] Filters
Date: Mon, 29 Oct 2001 15:14:10 +0200

> Making own boards is really mad and I'm mad.
> Making boards + mad man = I'm going to make the boards by my self at my school.
> I think that I build two or three ASM1 VCO's and one saw to
> sine/triangle converter.

Take a peek at the SAS-VCO, which is the ASM-1 VCO but with triangle
and sine added. The SAS-VCO also has at least one fix done to it which
helps in the tuning procedures.

> Two ADSR's from ASM1, noise from ASM1 and
> glide from ASM1. A distortion for acid lines. Ring modulator and
> MIDI/CV converter and powersource of course. I think I'll get 12dB
> and 24dB filters from a modular synth called Formant. Btw. does
> anyone has built any modules from Formant?

There are a few people here that has done that. I think you are better
of with the ASM-1 VCF than the 12 dB filter from the Formant. The 24
dB filter from the Formant has some rare properties, but we can lurk
them out of many filters if we only tries.

Cheers,
Magnus