Slides (in Japanese)
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Slides(PDF)
Slides(HTML)Arduino Example
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tone_minimal.ino
DLconst int button_pin = 2;
const int sound_pin = 9;
void setup() {
pinMode(button_pin, INPUT);
//tone()を使うときは3,11以外
pinMode(sound_pin, OUTPUT);
}
void loop() {
if (digitalRead(2) == HIGH) {
tone(sound_pin, 1000);
} else {
noTone(sound_pin);
}
delay(20);
}
tone_random_flip.ino
DLconst int button_pin = 2;
const int sound_pin = 9;
bool is_playing = false;
int button_prev= LOW;
float freq = 440;
float midiToFreq(int midi){
return 440.*pow(2.,(midi-69.)/12.);
}
void setup() {
pinMode(button_pin,INPUT);
pinMode(sound_pin, OUTPUT);
}
void loop() {
auto button_state = digitalRead(button_pin);
if(button_prev == LOW && button_state==HIGH){
is_playing = !is_playing;
freq = midiToFreq(random(65,100));
}
if(is_playing){
tone(sound_pin,freq);
}else{
noTone(sound_pin);
}
delay(20);
button_prev = button_state;
}
mozzi_sine.ino
DL#include <MozziGuts.h>
#include <Oscil.h>
#include <tables/sin2048_int8.h>
Oscil <SIN2048_NUM_CELLS, AUDIO_RATE> aSin(SIN2048_DATA);
void setup(){
startMozzi();
aSin.setFreq(440);
}
void updateControl(){
}
int updateAudio(){
return aSin.next();
}
void loop(){
audioHook();
}
mozzi_envelope.ino
DL#include <MozziGuts.h>
#include <mozzi_midi.h>
#include <Oscil.h>
#include <ADSR.h>
#include <tables/sin8192_int8.h>
Oscil<8192, AUDIO_RATE> aOscil(SIN8192_DATA); //元となる音色
ADSR<AUDIO_RATE, AUDIO_RATE> envelope; //エンベロープをかけるためのクラス
unsigned int Dur, Atk, Dec, Sus, Rel; //ADSRの長さを入れておく変数
int button_prev = LOW;
void setup() {
startMozzi(1024);
Atk = 10;
Dec = 10;
Sus = 50;
Rel = 100;
envelope.setTimes(Atk, Dec, Sus, Rel);
envelope.setADLevels(255, 128);
}
void updateControl() {
auto button_state = digitalRead(2);
if (button_prev == LOW && button_state == HIGH) {
auto f = mtof((int)random(65, 100));
aOscil.setFreq(f);
envelope.noteOn();
}
if (button_prev == HIGH && button_state == LOW) {
envelope.noteOff();
}
button_prev = button_state;
}
int updateAudio() {
envelope.update();
return envelope.next() * aOscil.next() / 255;
}
void loop() {
audioHook();
}
mozzi_reich.ino
DL#include <MozziGuts.h>
#include <mozzi_midi.h>
#include <Oscil.h>
#include <EventDelay.h>
#include <ADSR.h>
#include <tables/sin8192_int8.h>
Oscil <8192, AUDIO_RATE> aOscil(SIN8192_DATA);//元となる音色
Oscil <8192, AUDIO_RATE> aOscil2(SIN8192_DATA);//元となる音色
ADSR <AUDIO_RATE, AUDIO_RATE> envelope_A;//エンベロープをかけるためのクラス
ADSR <AUDIO_RATE, AUDIO_RATE> envelope_B;//エンベロープをかけるためのクラス
unsigned int Dur, Atk, Dec, Sus, Rel;//ADSRの長さを入れておく変数
//piano phaseのパターン
unsigned int pattern[] = {64, 66, 71, 73, 74, 66, 64, 73, 71, 66, 74, 73};
//二つのタイマーを用意
int phase_A = 0;
int phase_B = 0;
EventDelay timer_B;
EventDelay timer_A;
void setup() {
startMozzi(1024);
Atk = 10;
Dec = 10;
Sus = 50;
Rel = 100;
envelope_A.setTimes(Atk, Dec, Sus, Rel);
envelope_A.setADLevels(255, 128);
envelope_B.setTimes(Atk, Dec, Sus, Rel);
envelope_B.setADLevels(255, 128);
timer_A.set(150);
timer_B.set(151);
timer_B.start();
timer_A.start();
}
void updateControl()
{
if (timer_A.ready())
{
int note = pattern[phase_A];
phase_A = (phase_A + 1) % 12;
aOscil.setFreq(mtof(note));
envelope_A.noteOn();
timer_A.start();
}
if (timer_B.ready())
{
int note = pattern[phase_B];
phase_B = (phase_B + 1) % 12;
aOscil2.setFreq(mtof(note));
envelope_B.noteOn();
timer_B.start();
}
}
int updateAudio()
{
envelope_A.update();
envelope_B.update();
int A = (envelope_A.next() * aOscil.next()) >> 8;
int B = (envelope_B.next() * aOscil2.next()) >> 8;
return (A + B) / 2;
}
void loop() {
audioHook();
}