I recently downloaded some code to have the arduino output commands to a series of LEDs to make them "dance" to music. In order to play the song I have to add the .mp3 in manually before running the code using Processing 3.2.3. I was wondering if there was a way to have the program automatically play song after song from a directory of .mp3s automatically.
I attached the code I currently have below.
Thanks
import processing.serial.*;
import ddf.minim.*;
import ddf.minim.analysis.*;
import cc.arduino.*;
Minim minim;
AudioPlayer song;
BeatDetect beat;
BeatListener bl;
Arduino arduino;
int ledPin = 9; // LED connected to digital pin 9
int ledPin2 = 8; // LED connected to digital pin 1
int ledPin3 = 2; // LED connected to digital pin 0
float kickSize, snareSize, hatSize;
void setup() {
size(512, 200, P3D);
minim = new Minim(this);
arduino = new Arduino(this, Arduino.list()[0], 57600);
song = minim.loadFile("test.mp3", 2048);
song.play();
// a beat detection object that is FREQ_ENERGY mode that
// expects buffers the length of song's buffer size
// and samples captured at songs's sample rate
beat = new BeatDetect(song.bufferSize(), song.sampleRate());
// set the sensitivity to 300 milliseconds
// After a beat has been detected, the algorithm will wait for 300 milliseconds
// before allowing another beat to be reported. You can use this to dampen the
// algorithm if it is giving too many false-positives. The default value is 10,
// which is essentially no damping. If you try to set the sensitivity to a negative value,
// an error will be reported and it will be set to 10 instead.
beat.setSensitivity(100);
kickSize = snareSize = hatSize = 16;
// make a new beat listener, so that we won't miss any buffers for the analysis
bl = new BeatListener(beat, song);
textFont(createFont("Helvetica", 16));
textAlign(CENTER);
arduino.pinMode(ledPin, Arduino.OUTPUT);
arduino.pinMode(ledPin2, Arduino.OUTPUT);
arduino.pinMode(ledPin3, Arduino.OUTPUT);
}
void draw() {
background(0);
fill(255);
if(beat.isKick()) {
arduino.digitalWrite(ledPin, Arduino.HIGH); // set the LED on
kickSize = 32;
}
if(beat.isSnare()) {
arduino.digitalWrite(ledPin2, Arduino.HIGH); // set the LED on
snareSize = 32;
}
if(beat.isHat()) {
arduino.digitalWrite(ledPin3, Arduino.HIGH); // set the LED on
hatSize = 32;
}
arduino.digitalWrite(ledPin, Arduino.LOW); // set the LED off
arduino.digitalWrite(ledPin2, Arduino.LOW); // set the LED off
arduino.digitalWrite(ledPin3, Arduino.LOW); // set the LED off
textSize(kickSize);
text("KICK", width/4, height/2);
textSize(snareSize);
text("SNARE", width/2, height/2);
textSize(hatSize);
text("HAT", 3*width/4, height/2);
kickSize = constrain(kickSize * 0.95, 16, 32);
snareSize = constrain(snareSize * 0.95, 16, 32);
hatSize = constrain(hatSize * 0.95, 16, 32);
}
void stop() {
// always close Minim audio classes when you are finished with them
song.close();
// always stop Minim before exiting
minim.stop();
// this closes the sketch
super.stop();
}
BeatWrite.pde (3.66 KB)