[sdiy] Module idea - you guys get to work (for me!)

[Oren Leavitt]

The Moog 921B VCO used this type of approach for its 'phase lock' synchronization.
Multiply the signal from another VCO with its own, filter it, and feed the offset back to the summing node.

Oren

-----Original Message-----
From: Peter Grenader <peter at buzzclick-music.com>
Sent: May 13, 2004 10:03 AM
To: bobby at csounds.com, synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] Module idea - you guys get to work (for me!)

Shite,  you guys are brilliant!  it worked.  this is terrific.

- P


b o b b y wrote:

> Hi Peter,
> 
> multiply them together and run the result through a
> low-pass filter, that should do the trick.
> 
> Bobby
> 
> 
> 
> --- Peter Grenader <peter at buzzclick-music.com> wrote:
>> Got an idea.  You can 'kind of' do it now, without
>> this marvelous invention
>> I'm thinking of, but...
>> 
>> Is there be anyway of extrapolating the phasing of
>> two lightly detuned VCOs
>> as a control voltage?  I think this would be really,
>> really cool.  I guess
>> if you tuned two VCOs in perfect unison, and
>> introduced a SLIGHT freq VC on
>> one of them to induce this phasing, you could use
>> that CV as the secondary
>> CV, but it sure would be neat to make something that
>> just pulled it out form
>> the two VCO inputs.
>> 
>> - P
>> 
>> 
>> 
>> 
>