MIDI Kinetics Forum

wul wrote:

LogFader.zip

Not sure if this is right or not , it certainly appears to act like a log pot you can also scale its max and min values

Thank you very much Wu!!
I hoped that it was more easy to develop this script. I can see it s not the case.
I m surprised there is no basic "ready" script in Lemur to easily change the scale of a Knob or a fader with log or exp scale.

Great job anyway

G

Should be easy enough to reverse the action , it can be made easier without the script and min max constants by putting the a?b:c logic in the value field of the fader

Hi All
I should pull some bits out of my test project and post them but here are some basics

Exponential fader can be done by creating a variable under the Fader xExp = pow(x, 2) then set its midi CC and scale 0 to 127.
For a basic log you could do the same ie xLog = pow(x,0.5) and similarly scale 0 to127
You can also invert the first one pretty by doing 1-pow(x-1, 2) to reflect it across x=y i.e. linear
You can also increase or decrease the numbers as needed to get different slopes . . .
Ultimately I guess you could use the log/log10 functions to get the values for particular ranges of output perhaps . . .

Hope that helps....

Also re the Usine request - Have a look at Usine H and the Granulator patch - It also has a section that lets you alter its response to incoming midi

Nice one macciza, yep thats much easier