Dooho Yi
91f92c0e6c
migration from 'smp_v1p0' dev. for 'sampler' -> skip irrelavant note msg. and keep playing
143 lines
3.7 KiB
C++
143 lines
3.7 KiB
C++
#include <Audio.h>
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#include <Wire.h>
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#include <SD.h>
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#include <SPI.h>
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#include <SerialFlash.h>
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#include "chords.h"
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// Special thanks to Matthew Rahtz - http://amid.fish/karplus-strong/
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AudioSynthKarplusStrong string1;
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AudioSynthKarplusStrong string2;
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AudioSynthKarplusStrong string3;
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AudioSynthKarplusStrong string4;
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AudioSynthKarplusStrong string5;
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AudioSynthKarplusStrong string6;
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AudioMixer4 mixer1;
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AudioMixer4 mixer2;
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AudioOutputI2S i2s1;
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AudioConnection patchCord1(string1, 0, mixer1, 0);
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AudioConnection patchCord2(string2, 0, mixer1, 1);
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AudioConnection patchCord3(string3, 0, mixer1, 2);
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AudioConnection patchCord4(string4, 0, mixer1, 3);
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AudioConnection patchCord5(mixer1, 0, mixer2, 0);
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AudioConnection patchCord6(string5, 0, mixer2, 1);
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AudioConnection patchCord7(string6, 0, mixer2, 2);
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AudioConnection patchCord8(mixer2, 0, i2s1, 0);
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AudioConnection patchCord9(mixer2, 0, i2s1, 1);
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AudioControlSGTL5000 sgtl5000_1;
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const int finger_delay = 5;
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const int hand_delay = 220;
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int chordnum=0;
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void setup() {
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AudioMemory(15);
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sgtl5000_1.enable();
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sgtl5000_1.volume(0.6);
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mixer1.gain(0, 0.15);
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mixer1.gain(1, 0.15);
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mixer1.gain(2, 0.15);
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mixer1.gain(3, 0.15);
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mixer2.gain(1, 0.15);
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mixer2.gain(2, 0.15);
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delay(700);
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}
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void strum_up(const float *chord, float velocity);
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void strum_dn(const float *chord, float velocity);
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void loop() {
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const float *chord;
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// each time through the loop, play a different chord
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if (chordnum == 0) {
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chord = Cmajor;
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Serial.println("C major");
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chordnum = 1;
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} else if (chordnum == 1) {
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chord = Gmajor;
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Serial.println("G major");
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chordnum = 2;
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} else if (chordnum == 2) {
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chord = Aminor;
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Serial.println("A minor");
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chordnum = 3;
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} else {
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chord = Eminor;
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Serial.println("E minor");
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chordnum = 0;
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}
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// then strum the 6 string several times
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strum_up(chord, 1.0);
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delay(hand_delay);
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delay(hand_delay);
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strum_up(chord, 1.0);
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delay(hand_delay);
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strum_dn(chord, 0.8);
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delay(hand_delay);
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delay(hand_delay);
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strum_dn(chord, 0.8);
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delay(hand_delay);
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strum_up(chord, 1.0);
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delay(hand_delay);
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strum_dn(chord, 0.8);
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delay(hand_delay);
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strum_up(chord, 1.0);
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delay(hand_delay);
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delay(hand_delay);
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strum_up(chord, 1.0);
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delay(hand_delay);
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strum_dn(chord, 0.7);
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delay(hand_delay);
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delay(hand_delay);
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strum_dn(chord, 0.7);
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delay(hand_delay);
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strum_up(chord, 1.0);
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delay(hand_delay);
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strum_dn(chord, 0.7);
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delay(hand_delay);
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Serial.print("Max CPU Usage = ");
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Serial.print(AudioProcessorUsageMax(), 1);
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Serial.println("%");
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}
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void strum_up(const float *chord, float velocity)
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{
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if (chord[0] > 20.0) string1.noteOn(chord[0], velocity);
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delay(finger_delay);
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if (chord[1] > 20.0) string2.noteOn(chord[1], velocity);
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delay(finger_delay);
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if (chord[2] > 20.0) string3.noteOn(chord[2], velocity);
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delay(finger_delay);
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if (chord[3] > 20.0) string4.noteOn(chord[3], velocity);
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delay(finger_delay);
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if (chord[4] > 20.0) string5.noteOn(chord[4], velocity);
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delay(finger_delay);
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if (chord[5] > 20.0) string6.noteOn(chord[5], velocity);
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delay(finger_delay);
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}
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void strum_dn(const float *chord, float velocity)
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{
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if (chord[5] > 20.0) string1.noteOn(chord[5], velocity);
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delay(finger_delay);
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if (chord[4] > 20.0) string2.noteOn(chord[4], velocity);
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delay(finger_delay);
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if (chord[3] > 20.0) string3.noteOn(chord[3], velocity);
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delay(finger_delay);
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if (chord[2] > 20.0) string4.noteOn(chord[2], velocity);
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delay(finger_delay);
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if (chord[1] > 20.0) string5.noteOn(chord[1], velocity);
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delay(finger_delay);
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if (chord[0] > 20.0) string6.noteOn(chord[0], velocity);
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delay(finger_delay);
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}
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