As computing becomes more ubiquitous in our objects, designers need to be more aware of how to design meaningful interactions into electronically enhanced objects. At the University of Washington, a class of junior Interaction Design majors is exploring this question. These pages chronicle their efforts.
Thursday, April 5, 2012
Aaron’s Processing
/**
* Load File
* by Damien Di Fede.
* edited by Aaron Calzado for ART 387 Spring 2012
*
* This sketch demonstrates how to use the <code>loadFile</code> method
* of <code>Minim</code>. The <code>loadFile</code> method allows you to
* specify the file you want to load with a <code>String</code> and optionally
* specify what you want the buffer size of the returned <code>AudioPlayer</code>
* to be. If you don't specify a buffer size, the returned player will have a
* buffer size of 1024. Minim is able to play wav files, au files, aif files,
* snd files, and mp3 files. When you call <code>loadFile</code>, if you just
* specify the filename it will try to load the file from the data folder of
* your sketch. However, you can also specify an absolute path
* (such as "C:\foo\bar\thing.wav") and the file will be loaded from that
* location (keep in mind that won't work from an applet). You can also specify
* a URL (such as "http://www.mysite.com/mp3/song.mp3") but keep in mind that
* if you run the sketch as an applet you may run in to security restrictions
* if the applet is not on the same domain as the file you want to load. You can
* get around the restriction by signing the applet. Before you exit your sketch
* make sure you call the <code>close</code> method of any <code>AudioPlayer</code>'s
* you have received from <code>loadFile</code>, followed by the <code>stop</code>
* method of <code>Minim</code>.
*/
// Drawing Text taken from Daniel Shiffman @ http://www.learningprocessing.com
// Music - I do not own the music. Please don't sue me!
import ddf.minim.*;
AudioPlayer player;
Minim minim;
PFont f; // drawing text step 2 declare pfont variable
void setup()
{
size(512, 200, P2D);
f = loadFont("Courier-Bold-16.vlw"); // drawing text step 3 load font
minim = new Minim(this);
// load a file, give the AudioPlayer buffers that are 2048 samples long
player = minim.loadFile("stde.mp3", 2048);
// "play" the file once, "loop" the file forever!
player.loop();
}
void draw()
{
background(80);
stroke(255);
// if mouse is pressed
if (mousePressed) {
// drawing text
textFont(f,24);
fill(255);
text("PSYCH! It never ends!", 105, 100);
} else {
textFont(f,10); // drawing text step 4 specify font to be used
fill(255); // drawing text step 5 specify font color
text("Click anywhere to end the song", 165, 100); // drawing text step 6 display Text
}
// draw the waveforms
// the values returned by left.get() and right.get() will be between -1 and 1,
// so we need to scale them up to see the waveform
// note that if the file is MONO, left.get() and right.get() will return the same value
for(int i = 0; i < player.left.size()-1; i++)
{
line(i, 50 + player.left.get(i)*50, i+1, 50 + player.left.get(i+1)*50);
line(i, 150 + player.right.get(i)*50, i+1, 150 + player.right.get(i+1)*50);
}
}
void stop()
{
// always close Minim audio classes when you are done with them
player.close();
minim.stop();
super.stop();
}
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