What are the differences between　V/Oct and Hz/V of CV output?

 the V/OCT method, the voltage increases by 1V per octave.
In the Hz/V method, the voltage doubles per octave.
Therefore, each setting value of the [CV Range] settings in the [CV] Setting category of this unit are as follows:
- [V/OCT 1V]: the output voltage range is from 0V ~ 1V (1 octave).
- [V/OCT 2V]: the output voltage range is from 0V ~ 2V (2 octaves).
- [V/OCT 5V]: the output voltage range is from 0V ~ 5V (5 octaves).
- [V/OCT 10V]: the output voltage range is from 0V ~ 10V (10 octaves).
- [V/OCT -5V]: the output voltage range is from −5V ~ 5V (+/−5 octaves).
- [Hz/V 8V]: the output voltage range is from 1V ~ 8V (3 octaves).

In the V/OCT method, you can set the Reference Note when the CV voltage is 0V.

In the Hz/V method, the voltage doubles per octave.
Therefore, the CV voltage 1V ~ 8V represents 3 octaves as shown below.
- 1V ~ 2V: 1st octave
- 2V ~ 4V: 2nd octave
- 4V ~ 8Vt: 3rd octave
Major models using Hz/V method include the KORG MS series and the YAMAHA CS series.
The V/OCT method is used by many manufacturers such as ARP, MOOG, and Roland.