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

01.Basics/Vibrato/Vibrato.ino

This is an example using Oscil::phMod to produce vibrato using phase modulation.

/* Example playing a sinewave with vibrato,
using Mozzi sonification library.
Demonstrates simple FM using phase modulation.
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 <Oscil.h>
#include <tables/cos2048_int8.h> // table for Oscils to play
#include <mozzi_midi.h> // for mtof
#include <mozzi_fixmath.h>
#define CONTROL_RATE 64 // Hz, powers of 2 are most reliable
Oscil<COS2048_NUM_CELLS, AUDIO_RATE> aCos(COS2048_DATA);
Oscil<COS2048_NUM_CELLS, AUDIO_RATE> aVibrato(COS2048_DATA);
const byte intensity = 255;
void setup(){
startMozzi(CONTROL_RATE);
aCos.setFreq(mtof(84.f));
aVibrato.setFreq(15.f);
}
void updateControl(){
}
AudioOutput_t updateAudio(){
Q15n16 vibrato = (Q15n16) intensity * aVibrato.next();
return MonoOutput::from8Bit(aCos.phMod(vibrato)); // phase modulation to modulate frequency
}
void loop(){
audioHook();
}