Hi,
can one of you explain the scaling of the EG buttons (like EG Attack) and/or describe the related y=f(x) function?
It starts at 0.1 mSec then at position 4 it is 10 mSec then at position 10 it is 1 sec and finally at position 14 it is 10 sec.
Analog pots can be logarithmic or linear.
OSC Beat frequency going from -5 to 5 is probably linear.
EG pots are probably logarithmic but cannot figure out the relation with the pot position...
Same question for LFO rate...
Thx in advance!
EG buttons scale and related xy function
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goodweather
- Posts: 18
- Joined: Sun Jun 21, 2015 10:50 am
Re: EG buttons scale and related xy function
As these knobs are not directly creating the CVs used for the analog part, these might be scaled in every exotic way you can think of. Some synths even use a S-shape curve to get the most useful scaling.
On an envelope attack you need a detailed control for the very fast timing. And it doesn't matter that much if its set to 7.8 or 7.9 secs.
So linear is always bad on envelope stages time.
In the end its is not the math function for it, but how the scaling of a knobs feels to the user.
I had the chance to create the table that makes up the curve for a synth project. It was very interesting to see how different scaling felt on the very same parameter of the same synth. In the end a reversed S-shape had the best "feeling".
On an envelope attack you need a detailed control for the very fast timing. And it doesn't matter that much if its set to 7.8 or 7.9 secs.
So linear is always bad on envelope stages time.
In the end its is not the math function for it, but how the scaling of a knobs feels to the user.
I had the chance to create the table that makes up the curve for a synth project. It was very interesting to see how different scaling felt on the very same parameter of the same synth. In the end a reversed S-shape had the best "feeling".
keep on turning these Moog knobs
Sequence:
Prodigy * minimoog '79 * Voyager * MF102 * MF103 * MF104z * MP201 * Taurus 3 * Minitaur * Sub Phatty * MF105 * Minimoog 2017+ MUSE * One 16
Sequence:
Prodigy * minimoog '79 * Voyager * MF102 * MF103 * MF104z * MP201 * Taurus 3 * Minitaur * Sub Phatty * MF105 * Minimoog 2017+ MUSE * One 16
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jsharpphoto
- Posts: 443
- Joined: Sun Jul 05, 2015 4:18 pm
Re: EG buttons scale and related xy function
This is why I love this forum.till wrote:As these knobs are not directly creating the CVs used for the analog part, these might be scaled in every exotic way you can think of. Some synths even use a S-shape curve to get the most useful scaling.
On an envelope attack you need a detailed control for the very fast timing. And it doesn't matter that much if its set to 7.8 or 7.9 secs.
So linear is always bad on envelope stages time.
In the end its is not the math function for it, but how the scaling of a knobs feels to the user.
I had the chance to create the table that makes up the curve for a synth project. It was very interesting to see how different scaling felt on the very same parameter of the same synth. In the end a reversed S-shape had the best "feeling".
Moog Format Modular
Model D (2016)
Moog Subsequent37
Oberheim OB-6
Sequential Rev2
Model D (2016)
Moog Subsequent37
Oberheim OB-6
Sequential Rev2
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goodweather
- Posts: 18
- Joined: Sun Jun 21, 2015 10:50 am
Re: EG buttons scale and related xy function
Thx for the viewpoint till!
I didn't push my reasoning so far and was more thinking in more classical curves (linear, exp, log...) but you are totally right... why not an S curve...
And your conclusion is indeed the good one: whatever curve as long as we get the good feeling
Was just curious to know as the scaling on the panel was definitively not linear...
I didn't push my reasoning so far and was more thinking in more classical curves (linear, exp, log...) but you are totally right... why not an S curve...
And your conclusion is indeed the good one: whatever curve as long as we get the good feeling
Was just curious to know as the scaling on the panel was definitively not linear...