slider1:1<0,10,0.01>(cut/boost) side signal
slider2:0<0,1,0.01>(cut) mid signal
slider3:0<-24,24,0.1>(dB) output

in_pin:L in
in_pin:R in
out_pin:L out
out_pin:R out

@slider
widthside=slider1;
widthmid=slider2;
output=10^(slider3/20);

@sample
L=spl0;
R=spl1;

M = (L+R)/2; // obtain mid-signal from left and right
S = (L-R)/2; // obtain side-signal from left and right

// amplify mid and side signal seperately:
M *= 2*(1-widthmid);
S *= 2*widthside;

outL = (M+S)/2; // obtain left signal from mid and side
outR = (M-S)/2; // obtain right signal from mid and side

spl0=outL*output;
spl1=outR*output;
