adjusting scaling...

[Troy Sheets]

> 
> Here's what I do...
> 1. Play a low note on my reference synth (ref-VCO) so that pitch CV = 0v
> out for my midi->CV converter...
> 2. Set the pitch of the modular VCO (mod-VCO) to match (using course /
> fine tune)
> 3. Play a note about three octaves up on the ref-VCO
> 4. If the VCOs are in tune - or in tune enough that you can't notice a
> difference, goto step (8).
> 5. Tune the mod-VCO to match the pitch of the ref-VCO (using course /
> fine tune) paying careful attention to whether you have to tune up or
> down to get them together.
> 6. Adjust the v/oct trimmer. Turn the trimmer so that it causes the
> pitch of the mod-VCO to go in the <<opposite direction>> from the way
> you tuned it in step (5). The amount to adjust it should be proportional

this puzzles me.  Why can't I just leave the mod-VCO and the ref-VCO
out of tune, and adjust the v/oct trimmer until they are in tune?
Is there something I am missing that makes this method not work?

-troy

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