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Using Index CV?????

Using Index CV?????

2006-07-21 by dalimaster2004

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

Re: Using Index CV?????

2006-07-21 by Mike Marsh

I think you need an audio frequency sine wave (VCO or filter in
self-oscillate mode) going into 1V/Oct.  Said another way, take the
output of your carrier into the 1V/Oct of the ZO.

Mike 

--- In The_Cyndustries_List@yahoogroups.com, "dalimaster2004"
<dalimaster2004@...> wrote:
Show quoted textHide quoted text
>
> 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
>

Re: Using Index CV?????

2006-07-21 by tuninghead

Hello,

When you say "carrier oscillator", you really mean "modulation
oscillator".  The ZO is the carrier and your general-purpose VCO is
the modulator.  You don't mention a connection from this VCO into the
ZO.  It should be patched into either DYNAMIC1 or DYNAMIC2 which are
DC and AC coupled respectively.  You should also be listening to one
of the waveform outputs (try sine first) and not MOD OUT for your ZO
sound.  The MOD OUT outputs the DYNAMIC inputs multiplied by the INDEX
CV.  This signal can be used to cascade the modulation signal to other
ZOs or as a stand-alone ring modulator.

I hope this gets you twangin'

--Mark Barton





--- In The_Cyndustries_List@yahoogroups.com, "dalimaster2004"
<dalimaster2004@...> wrote:
Show quoted textHide quoted text
>
> 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
>

Re: [The_Cyndustries_List] Using Index CV?????

2006-07-21 by xamboldt

The Index CV controls a VCA which in turn controls the level of the  
signal at the Linear FM input. So if there's nothing plugged in to  
the Linear FM input, then there's nothing for the VCA to control.  
Plug the output of the carrier VCO to the Dynamic 1 DC Linear FM  
input (right below the Index CV input), and adjust the Index CV knob  
to control the amount of carrier you want to FM the ZO.

Hope this helps,
Chris
Show quoted textHide quoted text
On Jul 21, 2006, at 12:37 PM, dalimaster2004 wrote:

> 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
>
>
>
>
>
>
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Re: [The_Cyndustries_List] Using Index CV?????

2006-07-21 by Cynthia Webster

dalimaster2004 wrote:

Howdy Dali!
 
It helps to have envelope generators that actually sit at
zero when at rest, this is of more interest now that we have ZOs.

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. 

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/
Show quoted textHide quoted text
> 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
>
>

Re: Using Index CV?????

2006-07-21 by Cynthia

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 
Show quoted textHide quoted text
> 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
> >
> >
>

Re: Using Index CV?????

2006-07-21 by dalimaster2004

Maybe I left off the fact that the 1V/OCt was being driven by a CV 
signal that was also going to the carrier oscillator.  We tried it 
with the CV from my Voyager, as well as the sequencer CV.  

--- In The_Cyndustries_List@yahoogroups.com, "Mike Marsh" 
<michaelmarsh@...> wrote:
>
> I think you need an audio frequency sine wave (VCO or filter in
> self-oscillate mode) going into 1V/Oct.  Said another way, take the
> output of your carrier into the 1V/Oct of the ZO.
> 
> Mike 
> 
> --- In The_Cyndustries_List@yahoogroups.com, "dalimaster2004"
> <dalimaster2004@> wrote:
> >
> > 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 
Show quoted textHide quoted text
> > the EG.
> > 
> > What are we doing wrong?  
> > 
> > Thanks
> >
>

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