Knobs or Slider Utilities to work in milliseconds
Been trying to work this out for ages. If controlling the dials on a mod env that works in ms with a utility knob or slider that don’t work in ms you loose a lot of control. Any of you guys know a fix for this? Thanks.
Comments
Can you screenshot what you're trying to do please?
More often than not you're going to have to scale the
signal from the Env to whatever you're trying to modulate.
Thanks for the reply buddy. Hope the vid shows what I’m trying to say. Basically I want to get the same level of control from the utility knob as I get from the knob it’s controlling.
@yoddropper
Double tap the "Knob " module where it says value and set the
"Min" value to 0 in the menu that comes up and that should do it.
That is what I did in the vid mate. Gets close but still way off from it working in ms like the env does.
If you set Decay to 0 and then set the Amp Env to trig you will find
that the Attack length is 1 sec when the Knob is turned to full.
In this screenshot the Amp Env will sound for 1 sec.
Increasing the Knob value does not extend time.
What I'm trying to say is you did correctly in the video.
I appreciate your help brother but still the value of the knob utility isn’t increasing/decreasing the same as the value on the env
The problem seems to be that the control on the Amp Env Mod is calibrated roughly logarithmically. Straight up is 100 ms, maximum is 1000 ms. The low side is strange, because it goes right down to zero. However, the modulation input is linear: 0.05 gives 50 ms, 0.22 gives 220 ms, 0.80 gives 800 ms. So it's hard to control the low end of the scale with a knob. You could try a Graphic Shaper to give the knob more of a logarithmic characteristic.
I tested this with an LFO square wave at 0.5 Hz into the Amp Env Mod, triggered by the same wave. This lets you see the attack time on a scope, and match results from both controls. The pics show the results for 0.05 and 50 ms. The only changes between the two are the Knob and the Attack setting.
This comes pretty close to matching knob position with the Attack control. It needs both a Graphic Shaper and an Exp to get the extreme shape required. The modulation input needs to cover a range greater than 10,000. Note that the knob is not calibrated in ms, it just produces a similar effect to the control.
The values for the Graphic Shaper are (x,y) pairs: (0,1) (0.05, 0.461) (0.15, 0.345) (0.30, 0.230) (0.50, 0.115) (1.0, 0).
The pics show the result for roughly the same positions of both controls.
fwiw, this approximately matches the exponential response of the attack knob. i'm using a morph to show the effect visually.
Wow. Thanks @yoddropper for reporting, this one looks like a bug.
The modulation input should behave like the knob, not like on a linear scale.
@yoddropper
I'm only now just seeing the replies etc.
True many of the modulation inputs can be either logarithmic or linear.
I also discovered this putting together some of my designs earlier this year.
By far the simplest method is to use a Graphic Shaper to get the desired result
and then tune it by ear whenever you come across an input that requires it.
In this design I needed to be able to modulate the Attack and Release times.
You will see the shapes that I’m using in the Graphic Shapers to achieve a linear result.
Here’s another thread discussing logarithmic scaling for Auv3’s
which is applicable to the dRambo modules that require it.
https://forum.beepstreet.com/discussion/1990/auv3-parameters-logarithmic-scaling#latest
@rs2000 😁 No worries, I do hope it’s a fixable bug.
To everyone who’s posted pics and descriptions of work arounds. It’s very much appreciated guys.
Thanks man. This works great.