jsfx-plugins/IM-tones at master · akeda2/jsfx-plugins · GitHub

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desc:Inter-modulation test tones 18+19 and 21+22kHz

import cookdsp.jsfx-inc

slider1:-24<-96,0,1>Level (dB)
slider2:1<0,1,1{off,on}>18+19kHz
slider3:1<0,1,1{off,on}>21+22kHz
slider4:0<0,1,1{stereo,multi}>Stereo or multichannel

@init

frm = 100;
sine1.sine(frm*210, 0);
sine2.sine(frm*220, 0);
sine3.sine(frm*180, 0);
sine4.sine(frm*190, 0);

slider4 == 1 ? (
    myChannels = num_ch;
    ) : (
    myChannels = 2;
);

@slider
gain=2^(slider1 /6);

slider4 == 1 ? (
    myChannels = num_ch;
    ) : (
    myChannels = 2;
);

@sample
slider3 == 1 ? (
  output += (
  sine1.sine_do()+
  sine2.sine_do()
  );
);
slider2 == 1 ? (
  output += (
  sine3.sine_do()+
  sine4.sine_do()
  );
);
output *= gain;//* 0.125);
b=0;
loop(myChannels,
  spl(b)+=output;
  b+=1;
  );

/*
spl1 += ((
sine1.sine_do()+
sine2.sine_do()+
sine3.sine_do()+
sine4.sine_do()
) * 0.125);
*/