65 lines
1.4 KiB
Arduino
65 lines
1.4 KiB
Arduino
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// This needs to be in all sketches at the moment
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#include <stdint.h>
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// The Music and Midi objects are automatically instantiated when the header file is included.
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// Make calls to the Music and Midi objects with "Music.function(args)" and "Midi.function(args)"
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// You still need to call Music.init() and Midi.init() in the setup() function below.
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#include <Music.h>
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// variables for this sketch
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float gain = 1.0;
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float c = 220; // center frequency
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float f1 = 1;
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float f2 = 1;
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float f3 = 1;
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float m1 = 1.0011;
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float m2 = 1.0012;
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float m3 = 1.0013;
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void setup() {
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// We initialise the sound engine by calling Music.init() which outputs a tone
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Music.init();
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// Choosing the sine wave oscillator (optional since this is already the default).
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Music.setSine();
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// Setting the initial frequency for all three oscillators.
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Music.setFrequency(c);
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// Detuning the three oscillators slightly to create movement in the sound.
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Music.setDetune(0.002);
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}
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void loop() {
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// This short routine creates a
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Music.setFrequency1(c*f1);
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Music.setFrequency2(c*f2);
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Music.setFrequency3(c*f3);
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f1 *= m1;
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f2 *= m2;
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f3 *= m3;
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if(f1 > 4.0) m1 = 0.9745;
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if(f2 > 4.0) m2 = 0.9852;
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if(f3 > 4.0) m3 = 0.9975;
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if(f1 < 0.25) m1 = 1.0754;
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if(f2 < 0.25) m2 = 1.0573;
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if(f3 < 0.25) m3 = 1.0386;
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if(millis() > 10000) {
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Music.setGain(gain);
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gain *= 0.999;
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}
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}
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