|
Minim |
|
|
SOUND_ENERGY |
Description Constant used to request sound energy tracking mode.Signature int SOUND_ENERGY Related Example /**
* This sketch demonstrates how to use the BeatDetect object song SOUND_ENERGY mode.<br />
* You must call <code>detect</code> every frame and then you can use <code>isOnset</code>
* to track the beat of the music.
* <p>
* This sketch plays an entire song, so it may be a little slow to load.
* <p>
* For more information about Minim and additional features,
* visit http://code.compartmental.net/minim/
*/
import ddf.minim.*;
import ddf.minim.analysis.*;
Minim minim;
AudioPlayer song;
BeatDetect beat;
float eRadius;
void setup()
{
size(200, 200, P3D);
minim = new Minim(this);
song = minim.loadFile("marcus_kellis_theme.mp3", 2048);
song.play();
// a beat detection object song SOUND_ENERGY mode with a sensitivity of 10 milliseconds
beat = new BeatDetect();
ellipseMode(RADIUS);
eRadius = 20;
}
void draw()
{
background(0);
beat.detect(song.mix);
float a = map(eRadius, 20, 80, 60, 255);
fill(60, 255, 0, a);
if ( beat.isOnset() ) eRadius = 80;
ellipse(width/2, height/2, eRadius, eRadius);
eRadius *= 0.95;
if ( eRadius < 20 ) eRadius = 20;
}
Usage Web & Application |