I should have been more specific – I want to use the mod wheel to
control LFO "depth" for vibrato. I'll use the pitch wheel for pitch
changes and the mod wheel for vibrato for a lead sound, for example. I
need a VCA for this, correct? The mod wheel CV goes to the CV in of the
VCA, LFO goes to the VCA in, VCA out to VCO FM input. I can only use
channel 2 of the 190, because this channel is DC coupled. Do I have
this right? Is there another way to do this? I'm still trying to figure
out how to do functions that I take for granted on preset synths.
On Feb 23, 2005, at 9:45 AM, Dino Leone wrote:
> Thanks so much! It does indeed answer my question. I
> also got a very good answer from Larry (shown below).
> It seems I probably need both solutions - a simple
> attenuation (read: home-made panel with a bunch of
> pots) and maybe some additional VCAs..
>
>
> Thanks again,
>
> Dino
>
>
>
>
> J. Larry Hendry wrote:
>
> I would not modify the output of my 380. You have
> better options. If
> you
> are just using the VCA as a static attenuator (i.e. no
> voltage control
> of
> the modulation amount) you have two other good
> options.
>
> 1. You can change one resistor in the MOTM-300 which
> will change the
> gain
> of the FM circuit. So, the of 0-10 could be the
> equivalent of say 0-5
> or
> even less.
>
> 2. You could use a mixer to attenuate the sound. Or a
> reversing
> attenuator
> (like the Oakley multimix)
>
> 3. You could build a simple passive attenuator for
> this made from a
> single
> pot and 2 jacks.
>
> Larry
>
>
>
> --- tontaub <egroups@...> wrote:
>
> >
> >
> > If it's just attenuation without any time dependency
> > you virtually can
> > do that whereever you want (mostly depending on the
> > rest of the
> > patch). If you want to control that remotely from a
> > let's say MIDI
> > keyboard you will need a VCA which is controlled by
> > the MIDI-CV interface.
> > However - no one stops you to grab the knobs of your
> > modular when
> > playing ;-)
> >
> > Did this answer your question?
> >
> > Michael.
> >
> > --- In motm@yahoogroups.com, Dino Leone
> > <d_p_leone@y...> wrote:
> > > I've been thinking about the same issue and I'm
> > > wondering whether it's necessary to "waste" a VCA
> > just
> > > to attenuate the CV of the MOTM380 LFO to feed
> > into
> > > the FM of a MOTM300...
> > > right now I keep the FM attenuator on the MOTM300
> > > always between 0 and 1 (on a full scale of
> > 0-10)... so
> > > I was thinking if it would make sense to modify a
> > > MOTM380 so that its output amplitude is smaller?
> > Or
> > > maybe I'm just missing something here again?
> > >
> > > Best,
> > >
> > > Dino
> > >
> > >
> > >
> > >
> > > --- Jeff Laity <synthetic@e...> wrote:
> > >
> > > > Is this also the method for varying the amount
> > that
> > > > an LFO controls VCO
> > > > vibrato?
> > > >
> > > > On Feb 21, 2005, at 3:33 PM, Paul Schreiber
> > wrote:
> > > >
> > > > > You need the "lower" VCA of the '190, that one
> > is
> > > > DC coupled.
> > > > >
> > > > > Paul S.
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Jeff Laity" <synthetic@e...>
> > > > > To: "'MOTM List'" <motm@yahoogroups.com>
> > > > > Sent: Monday, February 21, 2005 4:17 PM
> > > > > Subject: [motm] Using Velocity
> > > > >
> > > > >
> > > > > >
> > > > > > How do I use velocity to control a VCA?
> > What I
> > > > would like to do is
> > > > > have
> > > > > > the velocity CV from my MIDI/CV converter
> > > > control the amount that
> > > > > the
> > > > > > envelope affects the VCA. I need some sort
> > of
> > > > VCA between the
> > > > > envelope
> > > > > > out CV and the VCA CV in. I tried using the
> > > > first half of the 190,
> > > > > but
> > > > > > that didn't work so well. Do I need a DC
> > VCA? I
> > > > glanced through the
> > > > > > MOTM modules, but I didn't see any that
> > mention
> > > > this application.
> > > > > >
> > > >
> > >
> > >