[sdiy] Ensoniq patent, was: distance meter for keyboard, was: Where to get special white keys?

[Rainer Buchty]

On Mon, 2 Mar 2009, ChristianH wrote:

> I don't know about temperature characteristics in this case, but a 
> simple offset could be compensated by measuring the all-notes-off 
> values.
>
> If there *is* an additional key contact, that is.

Why would you need that?

Just measure the idle value while writing "CALIBRATING KEYBOARD, DO NOT 
TOUCH KEYS" on the screen ;)

And if one idle value is too far off -- or suddenly starts growing 
rapidly into one or the other direction you know that someone 
pressed/released a key during the calibration phase.

Rainer