| Mozzi version v1.1.0 sound synthesis library for Arduino |

06.Synthesis/PWM_Phasing/PWM_Phasing.ino

This example demonstrates the Phasor class.

/* Example of pulse width modulation,
using Mozzi sonification library.
Based Miller Puckette's j03.pulse.width.mod example
in the Pure Data documentation, subtracting 2 sawtooth
waves with slightly different tunings to produce a
varying phase difference.
Demonstrates Phasor().
Circuit: Audio output on digital pin 9 on a Uno or similar, or
DAC/A14 on Teensy 3.1, or
check the README or http://sensorium.github.io/Mozzi/
Mozzi documentation/API
https://sensorium.github.io/Mozzi/doc/html/index.html
Mozzi help/discussion/announcements:
https://groups.google.com/forum/#!forum/mozzi-users
Tim Barrass 2012, CC by-nc-sa.
*/
#include <MozziGuts.h>
#include <Phasor.h>
Phasor <AUDIO_RATE> aPhasor1;
Phasor <AUDIO_RATE> aPhasor2;
float freq = 55.f;
void setup(){
aPhasor1.setFreq(freq);
aPhasor2.setFreq(freq+0.2f);
startMozzi(); // :)
}
void updateControl(){
}
AudioOutput_t updateAudio(){
char asig1 = (char)(aPhasor1.next()>>24);
char asig2 = (char)(aPhasor2.next()>>24);
return MonoOutput::fromNBit(9, ((int)asig1-asig2));
}
void loop(){
audioHook(); // required here
}