Smart midi fader
hello,
I got stuck with a (simple) midi control issue.
I would like to implement a logic that keeps preventing controller value jumps
when using faders that are multiply assigned. The last value should rather
be picked up by the current fader position (when reached) instead of being overwritten, which leads to harsh changes in the amplitude.
thanks, j.
Here is an abstraction I made for doing this. I made an example patch to explain how to use it.
I'm not quite sure it really what you want though, they are several ways to prevent controller value jumps..
hope it helps!
thanks a ton bystrano !!
excatly the magic i was looking for...
it will take a while to implement this into my gui (many assignments),
but it's going to be worth the effort 
it could be useful maybe to have this in [ctlin] by itself..
j.
I replaced the first Hslider in your example by a [crtlin].
It is not working, i still get value jumps.
can someone point me to working example ?
thx
The problem is likely due to the fact that the patch is looking for the value to be equal to the last value, but the controller value coming in is jumping past it. If you move the [hslider] too fast, you'll see the same problem. Attached is a way I've done it. Instead of looking for the last value, it tests to see if that value has been crossed. I added bystrano's method for allowing multiple assignments, with an added initial test to see if it is already at that value.
thx maelstorm
your patch doesn't work either.
I connected [ctlin 14] to the left inlet, a toggle [x] to the right as
well as an Hslider to the outlet (values 0-127).
Maybe i didn't explain clear enough that the multiple assignment
is physical (done by the interface), not in PD. It's a Korg Nano Kontrol.
It has 9 faders/knobs and 4 scenes (or pages), so virtually 36 controls.
i turn knob number 1, fine. switch to scene 2, turn more, not affecting
the patch (because the knob is now [ctlin 36] or whatever. I go back
to scene 1 and the value jumps 
cheers, juergen
ps. switching between the scenes/layers is AFAIK done in the interface,
and not spitting out any MIDI message.
When you switch scenes, you should set it up so that values from the new scene turn off the [tgl]. So, when you are in scene 1 the cc message (from [ctlin 14]) should turn on the [tgl]. When you switch to scene 2 and the cc message is 36 (or whatever) make it so that [ctlin 36] turns off the [tgl]. (I guess, anyway. Don't actually have a NanoKontrol.) You have to turn off that [tgl] when you're not using the cc message, otherwise it won't restart the test when you need it again.
Something like this should work. I modified my patch slightly to get rid of the initial test, as I think it's actually not helpful in your case.
Something like this should work. I modified my patch slightly to get rid of the initial test, as I think it's actually not helpful in your case.
yep, testing for the ctrl number did the trick. thanks again for your response
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