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Processing audio player customization?

[1 Reply]
- 08-Jan-2013 12:55 PM
- Forum: Core Library Questions
Hey people,

I am new to all this processing stuff (not familiar with all the fancy terms yet) but have a quick question. I am using the following code to match music played with processing to control PWMs on my arduino. Unfortunately the music player that opens if very simple. I can't play/pause the music or fast forward/rewind. Just curious if there is anything to add that might add some more features to the music player?

Thanks

-NJ

Edit: I forgot to mention that I am using processing 1.5.1 for this. No other version will work with this stuff.

//processing code for communicating with arduino using

//Firmata library.

//In the arduino I've uploaded the StandardFirmata sketch.

//this program blink 5 leds in pins 3,5,6,9,10

//detecting music rythm

//Code by Damiano Andreghetti

//Example song: No time to stop - Luca Guardigli

//For more information visit www.ilblogdidami.blogspot.com

import ddf.minim.*;

import ddf.minim.signals.*;

import ddf.minim.analysis.*;

import ddf.minim.effects.*; //Import ddf.minim library

import processing.serial.*; //Import serial library

import cc.arduino.*; //Import Arduino library

Arduino arduino;

Minim minim;

AudioPlayer song;

FFT fft;

//I create the objects

//To play another song change the song_file value

String song_file = "mag3.mp3";

int xmax = 600; //window width

int ymax = 300;//window height

void setup()

{

size(xmax, ymax);

minim = new Minim(this);

arduino = new Arduino(this, "COM5", 57600);

song = minim.loadFile(song_file);

song.play();

fft = new FFT(song.bufferSize(), song.sampleRate());

// in this function I create the minim object, I start

//communicating with Arduino,I load the song and I play it and

// I start the Fast Fourier Transofrm

}

void draw()

{

background(0);

fft.forward(song.mix);

stroke(127, 255, 0, 200); //I set the color of my lines

for(int i = 10; i < fft.specSize(); i++){

line(i, height-30, i, height - (30+fft.getFreq(i*10)));

// I create lines that represent the amplitude

// of each frequency.

text("Min Freq", 10, height-10);

text("Max Freq", fft.specSize(), height-10);

}

ledcontrol(); //I call the function for the arduino

}

void ledcontrol(){

//In this function I use arduino analogWrite function

// to write in PWM pins the amplitude

// of five general frequency

// arduino.analogWrite(6, gate(120,100));

//arduino.analogWrite(5, gate(80,80));

arduino.analogWrite(3, gate(120,100));

//arduino.analogWrite(5, int(fft.getFreq(60)));

// arduino.analogWrite(6, int(fft.getFreq(220)));

// arduino.analogWrite(3, gate(64,200));

// arduino.analogWrite(6, gate(300,100));

// arduino.analogWrite(3, gate(220,100));

// arduino.analogWrite(5, gate(120,100));

// arduino.analogWrite(3, int(fft.getFreq(220)));

// arduino.analogWrite(3, int(fft.getFreq(1000)));

// arduino.analogWrite(6, int(fft.getFreq(600)));

// arduino.analogWrite(5, int(fft.getFreq(1000)));

}

int gate(int i, int j)

{

if(int(fft.getFreq(i))>j)

{

return 255;

}

return 0;

}

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