fundamentals of programming
DESCRIPTION
Fundamentals of Programming. SM1204 Semester A 2012. Due date 21 Dec 2012 Collection via ACS. Assignment 3. Requirements. Create your own music visualization (20%) Select your audio / music Design your visualization Use of Minim audio library (30%) Program complexity (20%) - PowerPoint PPT PresentationTRANSCRIPT
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FUNDAMENTALSOF PROGRAMMINGSM1204 SEMESTER A 2012
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ASSIGNMENT 3DUE DATE 21 DEC 2012COLLECTION VIA ACS
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REQUIREMENTSoCreate your own music visualization (20%)oSelect your audio / musicoDesign your visualization
oUse of Minim audio library (30%)
oProgram complexity (20%)
oCreative graphics (30%)
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EXAMPLEhttp://www.youtube.com/watch?v=KW5D9IVfb1k&feature=related
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EXAMPLEhttp://www.youtube.com/watch?v=1JkN3Uwgqi4&feature=related
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EXAMPLEhttp://www.youtube.com/watch?v=0AVyhytUy7k&feature=related
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SAMPLE PROGRAM
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SAMPLE PROGRAM
Import libraryDefine 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];
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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; } }}
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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; } } }}
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SAMPLE PROGRAM
Do not forget to add the stop( ) function
void stop() { player.close(); minim.stop(); super.stop();}
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USEFUL FUNCTIONS & REFERENCESomap (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.