The Cyndustries List

gain Dali!

> I Hope this helps; Your description suggests this...
> 
> Over one knob to the right of the INDEX CV Knob,
> is the LIN FM attenuation Knob which is probably open...
> (The dotted line between Dynamic Inputs-and-the LIN FM knob
> indicates that the LIN FM knob controls the amount
> of Dynamic Input bleed, into the Index input side of the balanced
> modulator. 

What I meant by this, is that when the LIN FM knob is open, 
the audio bleed from the Dynamic Input signal will continue sounding
~regardless of the FM INDEX VCA setting~.  

This is intentional, as for some classic FM synthesis recipies
you will want to dail-in just the right amount of background radiation right.

Simply close, or turn the LIN FM Knob off, (at the fully Counter Clockwise
CCW Position) so that now the INDEX VCA will be totally in charge of 
the Linear FM Modulation.   

At that point, you should have full effect of the control voltage into the 
INDEX CV input Jack using the INDEX Knob for Modulation Depth.

Listen to the triangle or other waveform type output, but not the MOD 
OUT, it is just the result of the internal RIng Modulator, (not the core of 
the Zeroscillator itself)

Try this test

1. Put Audio modulation signal from your external VCO into the leftmost (AC) 
Dynamic FM input and turn it up.

2. Put Control output Signal from Envelope Generator into INDEX CV and turn 
the VCA Knob up.

3. Be sure that the Bias, Thru-Zero, and Range Switches are all UP
and that the other knobs are all turned all the way off...

Listen to the Triangle or Sine outputs

Should be good ole' FM Synthesis 

Best Wishes!

Cynthia 

> Remember that the MOD Out, is just the other side of the four
> quadrant multiplier based on the ~inputs~ to the Zeroscillator.
> Mod Out is just a ring modulator, while the unique FM capabilities
> of the mighty ZO are of course based on the ~outputs~ of the
> Zeroscillator core itself. 
> 
> Devilish things aren't they?
> 
> 
> Cynthia
> 
> http://www.cyndustries.com/
> 
> 
> 
> > Hi
> > We are using a modcan B series with the MOTM style ZOs. The basic
> > patch is
> > 1V/Oct going to Carrier oscillator and zo.
> > Gate going to EG
> > EG going to ZO Index CV
> >
> > Output of ZO Mod out (though we have tried others).
> >
> > I cant get a response from the ZO that shows no response to the CV from
> > the EG.
> >
> > What are we doing wrong?
> >
> > Thanks
> >
> >
>