How do I calibrate the velocity curve I have a Casio Wk3000 and it doesn't really have an adjustable kb scaling. Is that completely the responsibility of the Piano V vst?
Both keyboards and software can have settings for velocity curves. They don't have to.
What do you mean by "kb scaling"?
Are your keyboard velocity sensitive and send different velocity values? It need to.
In Piano V you can create and save your own velocity curves or select a curve from a menu. Please refere to the manual section "3.4.4 Velocity curve" starting on page 31.
You can download manuals here:
https://www.arturia.com/support/updates&manualsAsk if you have further questions.