[sdiy] ASM-1 VCO beginner question

[Magnus Danielson]

From: cacofone <pulse8 at goodtimetribe.com>
Subject: Re: [sdiy] ASM-1 VCO beginner question
Date: Tue, 04 Sep 2001 15:11:24 -0500

> >Normal gate is being sent to the envelope generators (ADSR).
> 
> Ahh.. Okay. That makes sense. So theoretically, if I just built the VCO's 
> to start with (with no ADSR), I'd have pretty much the same constant tone 
> except for whatever control are available on the VCO, from power on to 
> power off.

Exactly. Now you get it.

> And if let's say I attached a CV/out to one of the inputs, it'd 
> only change based on the value of the CV, and have no gate control for 
> on/off signal (until the addition of ADSR)?

Right.

Now, please notice that the VCA is responsible for actually changeing
the amplitude, but the change of amplitude is done by the ADSR which
does it's Attack-Decay-Sustain-Release sequence under the control of
the Gate signal.

> http://www.synhouse.com/midijack.html      Works on a gazillion other 
> analog synths... kind of figure it would work, and I know it's not the full 
> fledged DIY style, but wanted to see if anyone had any other success on it. 

Should work, but I've only bumped into that page once before some time ago.
Full fledged DIY style or not, don't put up too high obsticles when
you start! If there is some good kit or so around, use it.

Cheers,
Magnus