XY Pad Gain Scaling...

[JamesC]

Morning all hope you are all enjoying the holidays still.

I've got an XY Pad in a project that in itself is working nicely doing what it should and has a knob assigned to X axis and one to Y axis as you would expect, I'm wanting to control the gain on 4 simple gains 2 on the X 2 on the Y which again I've got working as it should, I'm just not sure to the maths for the values currently I've got it set to this:

inline function onxypadControl(component, value)
{
	local x = component.data.x;
	local y = component.data.y;
	
	gains1[0].setAttribute(gains1[0].GainValue, 36 * x);
	gains1[1].setAttribute(gains1[1].GainValue, 36 - 36 * y);
	
	gains2[0].setAttribute(gains2[0].GainValue, 36 * x);
	gains2[1].setAttribute(gains2[1].GainValue, 36 - 36 * y);
	
	knbxy[0].setValue(x);
	knbxy[1].setValue(y);
	
	component.repaint();
	
}

Which works to set the gain between 0 and 36. Now 36db is going to be way too loud for whats going on here so yes I could reduce that but also gain running right down to -100 whats the easiest way for me be able to include some of that in the range essentially looking at -30 to 20 or some such or in other words almost barely noticeable to packs some punch if you want.

[JamesC]

@JamesC So for those interested this is how I solved it in the end with a bit of AI help:

inline function onxypadControl(component, value)
{
	local x = component.data.x;
	local y = component.data.y;
	
	local gainX = -40 + (60 * x);
	local gainY = -40 + (60 * (1 - y));
	
	gains1[0].setAttribute(gains1[0].GainValue, gainX);
	gains1[1].setAttribute(gains1[1].GainValue, gainY);
	
	gains2[0].setAttribute(gains2[0].GainValue, gainX);
	gains2[1].setAttribute(gains2[1].GainValue, gainY);
	
	knbxy[0].setValue(x);
	knbxy[1].setValue(y);
	
	component.repaint();
	
}

[Lindon]

@JamesC yeah thats one way - but for us this algo approach wasnt quite good enough so we added a simple array of gain(dB) values that the xy pad reads to get the correct gain for its current position - and thus allowed us to have a little "bump" in the middle