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

john mahoney jmahoney at gate.net
Sat May 15 02:17:52 CEST 2004


----- Original Message ----- 
From: "Peter Grenader"
>
> Let's say you've got a patch going with two VCOs tuned 'close' to unison.
> If you do NOT sync your VCOs (I rarely do this) and tune them just so to
get
> that marvelous sweeping phase cancellation, wouldn't it be nice to pan the
> sound across the stereo field with that?  Or sync a filter opening with
> these?
>
> That sort of thing.  This patch allows you to do this.

Ahh, I think I'm catching on. But what exactly *is* the patch?

Oren wrote, "Multiply the signal from another VCO with its own, filter it,
and feed the offset back to the summing node."

Do I have a multiplier? Perhaps a "ring" (balanced) modulator does that, or
just an op amp?

As for filtering, are you using a lowpass VCF that tracks the pitch?

Finally, I believe that "summing node" typically means mixer module, but I'm
confused by the phrase "feed the offset back to the summing node." *Back* to
the summing node? Were we at the summing node somewhere else in the patch?

Enlighten the unwashed masses, please! :-)
--
john



More information about the Synth-diy mailing list