Discussion about the Korg PolySix synthesizer

And one final thought before I retire for tonight:

I don't think the test mode for the key assigner puts out 0, 2.5 and 5V
respectively.

The test mode for the MonoPoly put out a much larger voltage than the whole
keyboard required. And it was not directly related to the CV.

Monopoly:

0V
5.25V
10.583V

Polysix new:

-8.62
-11.22
-13.33

Polysix old:

-8.40V
-11.02V
-13.30V


This also did not correspond with the regular key voltages (0.5V/Oct). If I
try to relate the numbers by removing the offset I get for the Polysix:

Polysix new:

0V
2.6V
4.71V

Polysix old:

0V
2.62V
4.9V

It's obvious that the two top values don't fit into this.

For the Monopoly the ratio for middle value to top value was 1 to 2.015.
For the new Polysix it was 1 to 1.811.
For the old Polysix it was 1 to 1.870.

Anyway, since for both the Monopoly and the Polysix the values are somewhat
odd I could imagine that those values were picked to simplify the antilog
calibration. However in the Monopoly this makes not much sense (you have to
calibrate to those three values to get regular 1V/OCT response - why not
use values like 5V or 10V then?) I could imagine that this is a Polysix
"thing".