Spire stepper pitch

VST, AU, AAX, etc. plug-in Virtual Instruments discussion
dupont
KVRian
811 posts since 23 Jun, 2007

Post Mon Nov 11, 2019 11:53 am

In several Spire, the osc pitch is modulated by the stepper.
What is the relation between the stepper value and the note pitch ?
I can't find any logic link.

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AJYoung
KVRist
288 posts since 19 Aug, 2014

Re: Spire stepper pitch

Post Mon Nov 11, 2019 1:04 pm

The "link" is how intensely it's modulated in the Matrix:

Mod Matrix.png

The farther you move that slider, the more the Stepper affects the pitch.
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dupont
KVRian
811 posts since 23 Jun, 2007

Re: Spire stepper pitch

Post Tue Nov 12, 2019 12:18 am

AJYoung wrote:
Mon Nov 11, 2019 1:04 pm
The "link" is how intensely it's modulated in the Matrix:


Mod Matrix.png


The farther you move that slider, the more the Stepper affects the pitch.
Yes I know that but how far should I move the slider so the steps in the stepper correspond to major note scale ?

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AJYoung
KVRist
288 posts since 19 Aug, 2014

Re: Spire stepper pitch

Post Tue Nov 12, 2019 1:11 pm

I don't think there's a specific "This Number = This many semitones" relationship. Plus the amount seems to be exponential. My best advice is to shift-drag the slider and just use your ears.

Just did a brief experiment and I found that 790 or 210 is an octave. Anything in between there is just going to have to be adjusting to get it right.
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dupont
KVRian
811 posts since 23 Jun, 2007

Re: Spire stepper pitch

Post Tue Nov 12, 2019 11:54 pm

AJYoung wrote:
Tue Nov 12, 2019 1:11 pm
I don't think there's a specific "This Number = This many semitones" relationship. Plus the amount seems to be exponential. My best advice is to shift-drag the slider and just use your ears.

Just did a brief experiment and I found that 790 or 210 is an octave. Anything in between there is just going to have to be adjusting to get it right.
Thanks, not obvious to adjust the pitch this way if it is exponential.
strange behaviour.

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KVRAF
1991 posts since 2 Oct, 2004

Re: Spire stepper pitch

Post Wed Nov 13, 2019 12:39 am

It's probably done to keep the mod matrix behaviour consistent.
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