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Subject: Re: [yamahacs80] 5U modules

From: "J. Douglas Rodriguez" <floobygoop@...>
Date: 2011-11-16

David,
What do you mean by bending chords down to DC?
Doug



On Nov 15, 2011, at 3:10 PM, The Old Crow <oldcrow@...> wrote:

> Currently the FM input is tied through an attenuator into the
> exponential CV buss to provide exponential FM. This was done to
> facilitate the use of the VCO in a modular system where most of the
> control voltage sources are already linear. It is simple enough to bend
> the frequency down to DC. In an expo VCO linear FM is typically used
> for linear detune which the secret to obtaining what Jurgen (Haible)
> describes as "living VCOs." I can add a switch-selectable linear/expo
> FM option easily enough, though it adds like $15 to the end price.
>
> Crow
> /∗∗/
>
> On 11/15/2011 1:17 PM, David Rogoff wrote:
> > Excellent! One thing (of course) - one of the coolest effects on a CS
> > is bending chords down to dc, which is possible since the VCOs are
> > linear, not exponential. I hope the FM input jack will allow this.
> > Maybe 0 volts is freq ∗ 1 (no mod), +5v is freq ∗ 2 (+1 octave) and -5v
> > is freq ∗ 0. This would work like the ribbon on the CS80/60.
> >
> > David
> >
> >
>
>


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