Two or more faders controlling one vst parameter

Ariajazz · Unread post by **Ariajazz** » 25 Jun 2016, 05:47

How can I set two or more faders control a vst parameter simultaneously so each can control the other and the parameter on the plugin'

Unread post by **oli_lab** » 25 Jun 2016, 16:32

use "pass only has change" !

Ariajazz · Unread post by **Ariajazz** » 25 Jun 2016, 22:14

oli_lab wrote:use "pass only has change" !

Thanks for replying. Can you please be a little bit more explanatory?

shawnb · Unread post by **shawnb** » 25 Jun 2016, 22:49

The problem with two faders updating one control is that they are sending different values. If one fader is set to 8 and the other is set to 3, what value do you want the control to use?

oli_lab's recommendation is to have each of the different faders go thru a "Pass If Changed" module. That way, they're not simultaneously sending contradictory input to control. The control will take the value of the last fader that was changed.

So..
Fader 1 => Pass If Changed 1 => your control
Fader 2 => Pass If Changed 2 => "

If you want both faders to have the same value, you can take the output of each "Pass" module to the input of the other Fader module. So essentially each fader controls both the control & the other fader. But at that point, it's probably easier to just use one fader...

XpiR · Unread post by **XpiR** » 26 Jun 2016, 23:57

I think Ariajazz needs a multifader control, meaning that if one fader changes then it changes the value of the VST and the other faders too (right?)
The problems you'll need to solve in this situation are :
- how to you avoid one fader being the permanent slave of another (you need a "turning master")
- when the master fader is tuned, it has to tune the slave faders but the VST must only receive the master info (if not, the VST will add all the received values)

Check this with 2 faders, which can be extended to more faders.

Ariajazz · Unread post by **Ariajazz** » 28 Jun 2016, 00:13

Thanks to both Shawnb and Xpir. I get the whole idea and will test your recommendations. I have one more question: If I move a control (fader, knob, etc) on the VST's interfacei how can I make move a fader or knob attached to the VST?. In USINE STAGE it does not happen.

XpiR · Unread post by **XpiR** » 28 Jun 2016, 10:53

Well, my solution works for 2 faders controling a VST... no time in the coming week to think about it, but maybe a little bit later if you or anybody else don't have any answer...

shawnb · Unread post by **shawnb** » 28 Jun 2016, 13:04

I haven't yet worked with output from VST controls. I know there are some threads here and in the add-ons board that address this. I would first try see if sephult's VST tools add-on may help. I would also look very closely at existing VST module outlets.

Related threads:
http://www.sensomusic.org/forums/viewtopic.php?id=4801
http://www.sensomusic.org/forums/viewtopic.php?id=5309

Unread post by **oli_lab** » 28 Jun 2016, 16:28

took some time to make an exemple

File uploaded: http://www.sensomusic.com/forums/upload ... 0fader.pat

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Two or more faders controlling one vst parameter

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