I was in touch for a short while with a gent who was creating a feature- packed modular called the
EVOS (info in the AH archives). It never saw the light of day AFAIK but it's oscillators had the same
continuously variable Sync input function.
You have a Wiard? :-)
So with soft synch, if VCO1 & VCO2 at close frequencies, BUT freerunning, whether or not VCO2
will synch to VCO1 may vary based on slight phase/frequency differences between the two
oscillators. And as those differences will change over time, yes, the synched sound may vary
depending on exactly when you hit the "synch" button.
If you don't have the slave oscillator detuned into the "groove" which allows soft synch to lock, it can
jump in and out of synch creating it's own effect. James Reynolds created a sound, "Faux Organ" in
the factory presets which takes advantage of this effect, IIRC.
Synths I know of with Soft Sync:
Moog 921b oscillators
Roland SH5 (you have to tune it's slave oscillator flat as well as the A6s)
I know that the curtis 3340 oscillator had a soft sync input pin as well as a hard sync input but I don't
remember any CEM synths with this feature.
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