ALPHA and BETA knobs
These control the filter bank and can morph between vowel tones when you find a sweet spot.
ALPHA CV and BETA CV jacks
These affect the filter bank in the same manner as the ALPHA and BETA knobs, and can be used simultaneously.
Remember:
By default, MOD 1 VARI OUT is internally connected to ALPHA CV. Plugging a patch cable in to ALPHA CV breaks this connection.
By default, MOD 2 VARI OUT is internally connected to BETA CV. Plugging a patch cable in to BETA CV breaks this connection.
To stop MOD DEPTH from modulating the filters so you can use VARI OUT for other purposes, dead patch ALPHA CV or BETA CV.
To dead patch, just plug in a patch cord to ALPHA CV or BETA CV and leave its other end unconnected.
*