[sdiy] VCO Tuning goals

[Cornutt, David K]

From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of David Ingebretsen

>I understand all too well the scale will always have errors, and my understanding is that an 
>error of +/- 0.2% in the frequency is likely not detectable, BUT... as one plays, it seems 
>most successive notes are within the same octave and often within a few notes.

That depends on what you envision doing with the VCOs.  One reason why a modular
(if it's that) might have several VCOs is because the performer plans to set them
to intervals, which may be an octave or more.  In this case, it seems more important
that the VCOs track each other accurately and that the intervals be precise between
them, which might be more important than whether the VCOs track an external reference
well.  I could see a situation where one VCO is set up to track most accurately in
its low range, where another VCO, which is usually tuned to a high interval above
the first, is set to track most accurately in a higher range.