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

02.Control/Metronome_SampleHuffman/Metronome_SampleHuffman.ino

This example shows how to use the Metronome class.

/* Example using Metronome to playing samples encoded with Huffman compression.
Demonstrates Metronome start, stop and ready, and the the SampleHuffman class.
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 2013, CC by-nc-sa.
*/
#include <MozziGuts.h>
#include <Metronome.h>
#include <SampleHuffman.h>
#include <mozzi_rand.h>
#include <samples/thumbpiano_huffman/thumbpiano0.h>
#include <samples/thumbpiano_huffman/thumbpiano1.h>
#include <samples/thumbpiano_huffman/thumbpiano2.h>
#include <samples/thumbpiano_huffman/thumbpiano3.h>
#include <samples/thumbpiano_huffman/thumbpiano4.h>
SampleHuffman thumb0(THUMB0_SOUNDDATA,THUMB0_HUFFMAN,THUMB0_SOUNDDATA_BITS);
SampleHuffman thumb1(THUMB1_SOUNDDATA,THUMB1_HUFFMAN,THUMB1_SOUNDDATA_BITS);
SampleHuffman thumb2(THUMB2_SOUNDDATA,THUMB2_HUFFMAN,THUMB2_SOUNDDATA_BITS);
SampleHuffman thumb3(THUMB3_SOUNDDATA,THUMB3_HUFFMAN,THUMB3_SOUNDDATA_BITS);
SampleHuffman thumb4(THUMB4_SOUNDDATA,THUMB4_HUFFMAN,THUMB4_SOUNDDATA_BITS);
const char NUM_SAMPLES = 5;
Metronome kMetro(800); // enough delay so samples don't overlap, because the load would be too much
void setup() {
startMozzi();
}
void updateControl(){
static unsigned int counter;
counter++;
if(counter==177)kMetro.stop();
if(counter==203){kMetro.start();counter = 0;}
if(kMetro.ready()){
switch(rand(NUM_SAMPLES)){
case 0:
thumb0.start();
break;
case 1:
thumb1.start();
break;
case 2:
thumb2.start();
break;
case 3:
thumb3.start();
break;
case 4:
thumb4.start();
break;
}
}
}
AudioOutput_t updateAudio(){
int asig = (int)
thumb0.next() +
thumb1.next() +
thumb2.next() +
thumb3.next() +
thumb4.next();
// Note: Samples don't overlap, here, therefore this the sum is still only 8 bits range
return MonoOutput::from8Bit(asig);
}
void loop() {
audioHook();
}