my masterkeyboard has a modwheel (CC1) that has a “center-stop”, like a detent, in the middle, so that when the CC value is 64 there is a “dead band” around 64. this is not so easy to manage.
i opened the box and found that the pot is 10K, but it is smaller than the normal pots i can buy in my store, so there is no way to change it.
moreover, it doesnt’ work at full-range, but onlt say, between 4 and 6 Kohm (can remember well…) the “detent” or the center-stop is at mid-range, so i think is at 5Kohm.
my idea to overcome this problem is to “rotate” the modwheel pot, so that it will work between (let’s say) 1 and 3 kohm instead that between 4 and 6 (to avoid the center-stop) and add a simple resistor (in the form of a variable resistor) to add the offset required. if i’d add a constant 3 Kohm the min-max resistance of the modwhell will be preserved, and it will work like before, but without the center-stop.
Let’s say you have a pitchbender pot, and it only travels 90 degrees out of a possible 270… that means it will only use 1/3 of it’s throw, so if you want to get better resolution, you just need to use a 30K pot
So:
Required pot value = 10000 / (Throw used/Maximum throw)
… if somebody really need full 10 bits. Personally I will try to play with this 7 bits only (at pitch), but if it is not good then I will change pot like you said.
