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Re: LFO mod of VCO (was Using Velocity)

2005-02-23 by tontaub

Hi,

--- In motm@yahoogroups.com, Jeff Laity <synthetic@e...> wrote:
> 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? 

Yes.

> The mod wheel CV goes to the CV in of the 
> VCA, LFO goes to the VCA in, VCA out to VCO FM input. 

Yes.

> I can only use 
> channel 2 of the 190, because this channel is DC coupled. Do I have 
> this right? 

Yes.

> Is there another way to do this? 

Not to my knowledge.
Whenever you want to change the level of a signal you need an
attenuator and/or amplifier. Both CV controllable. That is a VCA.
The only thing you've to take into account is wether the signal has to
be DC coupled or not. That can become quite complex. But take your time.

> I'm still trying to figure 
> out how to do functions that I take for granted on preset synths.

Regardless if the synth is digital or analouge or whatever ;-) , it's
basically doing the same thing. 

You're on the right track!

  Have fun, :-) Michael.

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