maximilian_examples/3.AM1.cpp


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#include "maximilian.h"

//This shows how to use maximilian to do basic amplitude modulation. Amplitude modulation is when you multiply waves together. In maximilian you just use the * inbetween the two waveforms.

maxiOsc mySine,myOtherSine;//Two oscillators. They can be called anything. They can be any of the available waveforms. These ones will be sinewaves

void setup() {//some inits
    //nothing to go here this time
}

void play(double *output) {
    
    // This form of amplitude modulation is straightforward multiplication of two waveforms.
    // Notice that the maths is different to when you add waves.
    // The waves aren't 'beating'. Instead, the amplitude of one is modulating the amplitude of the other
    // Remember that the sine wave has positive and negative sections as it oscillates.
    // When you multiply something by -1, its phase is inverted but it retains its amplitude.
    // So you hear 2 waves per second, not 1, even though the frequency is 1.
    output[0]=mySine.sinewave(440)*myOtherSine.sinewave(1);
    output[1]=output[0];

}