FUNDAMENTALS OF PROGRAMMING SM1204 SEMESTER A 2012.
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Transcript of FUNDAMENTALS OF PROGRAMMING SM1204 SEMESTER A 2012.
FUNDAMENTALSOF PROGRAMMING
SM1204 SEMESTER A 2012
ASSIGNMENT 3
DUE DATE 21 DEC 2012
COLLECTION VIA ACS
REQUIREMENTS
oCreate your own music visualization (20%)oSelect your audio / musicoDesign your visualization
oUse of Minim audio library (30%)
oProgram complexity (20%)
oCreative graphics (30%)
EXAMPLE
http://www.youtube.com/watch?v=KW5D9IVfb1k&feature=related
EXAMPLE
http://www.youtube.com/watch?v=1JkN3Uwgqi4&feature=related
EXAMPLE
http://www.youtube.com/watch?v=0AVyhytUy7k&feature=related
SAMPLE PROGRAM
SAMPLE PROGRAM
Import library
Define player and beat detector objects
import ddf.minim.*;import ddf.minim.analysis.*;
Minim minim;AudioPlayer player;BeatDetect beat;int n = 5;float[][] a = new float[n][n];
SAMPLE PROGRAMCreate objects & Initialize array elementsvoid setup() { size(400, 400); minim = new Minim(this); player = minim.loadFile("test2.mp3"); beat = new BeatDetect( player.bufferSize(), player.sampleRate() ); player.play();
// initialize item size for (int i=0; i<n; i++) { for (int j=0; j<n; j++) { a[i][j] = 40; } }}
SAMPLE PROGRAMBeat detection and renderingvoid draw() { beat.detect(player.mix); background(0);
strokeWeight(4); for (int i=0; i<n; i++) { for (int j=0; j<n; j++) { // enlarge corresponding circle if onset if (beat.isOnset(i*5+j)) { a[i][j] = 80; }
float s = a[i][j]; float c = map(s, 40, 80, 200, 255); noFill(); stroke(c); ellipse(i*80+40, j*80+40, s, s); fill(c); noStroke(); ellipse(i*80+40, j*80+40, s / 2, s / 2); // decrease circle sizes if (a[i][j] > 40) { a[i][j] *= 0.95; } } }}
SAMPLE PROGRAM
Do not forget to add the stop( ) function
void stop() { player.close(); minim.stop(); super.stop();}
USEFUL FUNCTIONS & REFERENCES
omap (value, low1, high1, low2, high2)
oRe-maps a number from one range to another
oconstrain(value, min, max)
oConstrains a value to not exceed a maximum and minimum value.
oabs(value)
oCalculates the absolute value (always position) of a number.