Performance Issues FFT

Sky

Hi there,

I'm new at Processing (but some knowledge at Java). I try to visualize some music but somehow i'm calling to much functions and if the middle frequencys starting, there are bad performance issues. Maybe someone can explain me where i did the mistake. Maybe i have to cut the unused Frequencys up to 20kHz. But i don't know how. (On my 8GB, Octacore, High-Graphic Computer are no Issues. They start at 4GB and without good graphiccards) Thanks a lot.

Can't use code-tags so uploaded on my server:Code

Sky

jas0501

Here is the code:

import ddf.minim.*;
import ddf.minim.signals.*;
import ddf.minim.analysis.*;
import ddf.minim.effects.*;
import controlP5.*;

Minim minim;
AudioPlayer player;
FFT fft;
ControlP5 cp5;

float[] angle;
float[] y, x;
float r = PI/6;
color[] c = new color[10];

color neonColor;
int colorCountIn, colorCountOut;

int timing;

int opacity = 0;
// INTERACTION
boolean isRotate = true;
boolean isColor = true;
boolean isForm = true;
boolean isSec = false;

void setup() {
  //P3D = 3D rendering, zur Ebenendarstellung
  //size(displayWidth/2, displayHeight/2, OPENGL);
  size(800, 600, P3D);
  minim = new Minim(this);
  cp5 = new ControlP5(this);

  //toggle für einen an/aus schalter
  cp5.addToggle("rotation")
    .setPosition(10, 35)
      .setSize(50, 20)
        .setValue(true)
          .setMode(ControlP5.SWITCH);
  cp5.addToggle("colorchange")
    .setPosition(10, 75)
      .setSize(50, 20)
        .setValue(true)
          .setMode(ControlP5.SWITCH);
  cp5.addToggle("formchange")
    .setPosition(10, 115)
      .setSize(50, 20)
        .setValue(true)
          .setMode(ControlP5.SWITCH);
  cp5.addToggle("morecircles")
    .setPosition(10, 155)
      .setSize(50, 20)
        .setValue(true)
          .setMode(ControlP5.SWITCH);

  // Slider für die Deckkraft der Außenlinien
  cp5.addSlider("opacity")
    .setPosition(10, 20)
      .setRange(0, 100);

  //Foto
  cp5.addButton("Foto")
    .setPosition(765, 565)
      .setImages(loadImage("icon.png"), loadImage("icon.png"), loadImage("icon.png"))
        .updateSize();

  //512 ist Buffergröße (1024 ist Standart)
  player = minim.loadFile("19. Freak on a leash (Dante Ross Mix).mp3", 512);

  //fft?
  fft =new FFT(player.bufferSize(), player.sampleRate());
  y = new float[fft.specSize()];
  x = new float[fft.specSize()];
  angle = new float[fft.specSize()];
  frameRate(40);

  player.play();

  c[0] = color(255, 153, 51);
  c[1] = color(0, 255, 0);
  c[2] = color(255, 0, 0);
  c[3] = color(0, 0, 255);
  c[4] = color(255, 255, 255);
  c[5] = color(255, 255, 0);
  c[6] = color(0, 255, 255);
  c[7] = color(255, 0, 255);
  c[8] = color(255, 0, 130);
  c[9] = color(0, 130, 255);
}
//Schalterfunktionen
//Rotation
void rotation(boolean first) {
  if (first==true) {
    isRotate=true;
    println("Drehung fortgesetzt");
  }
  else {
    isRotate=false;
    println("Drehung angehalten");
  }
}
//Farbe
void colorchange(boolean second) {
  if (second==true) {
    isColor=true;
    println("Farbwechsel fortgesetzt");
  }
  else {
    isColor=false;
    println("Farbwechsel angehalten");
  }
}
//Form
void formchange(boolean third) {
  if (third==true) {
    isForm=true;
  }
  else {
    isForm=false;
  }
  println("Formwechsel");
}
//mehr Kreise
void morecircles(boolean fourth) {
  if (fourth==true) {
    isSec=false;
    println("Weniger Kreise");
  }
  else {
    isSec=true;
    println("Mehr Kreise");
  }
}
//Bild Speichern
public void Foto(int theValue) {
  println("Foto geschossen");
  saveFrame("song-####.jpg");
}

void draw() {
  println(frameRate);
  //Mittelkreis
  noStroke();
  fill(0);
  rect(0, 0, width, height);

  pushMatrix();
  translate(width/2, height/2); //position
  if (isRotate) {
    r +=PI/50;
  }
  rotate(r);

  if (player.position()-timing > 5000 && isColor) {
    colorCountIn = (int)random(0, 9);
    colorCountOut = (int)random(0, 9);
    timing = player.position(); //damit die 5sec wieder gestartet werden
  }
//j < menge der linien
  for (int j = 0; j < 200; j++) {

    if (player.mix.get(j) > 0.5) {
      rect(-width, -height, width*4, height*4);
    }
    //Farbe der Außenlinien
    if (player.mix.get(j)*200 > 29) {
    }
    else {
      if (isColor)
        neonColor = c[colorCountIn];

      stroke(neonColor, opacity);
    }
    //außenlinien
    float x1 = tan(j)*250;
    float y1 = sin(j)*1250;

    float x2 = sin(j)*abs(player.left.get(j))*200 + sin(j)*150;
    float y2 = sin(j)*abs(player.right.get(j))*220 + sin(j)*50;

    line(x1, y1, x2, y2);
  }

  for (int k = 360; k > 0; k--) {
    if (player.mix.get(k)*200 > 25) {
      stroke(neonColor = c[colorCountOut]);
    } 
    else {
      stroke(neonColor = c[colorCountIn]);
    }

    float dim = player.mix.get(k)*100;
    //innerer kreis
    //ellipse(sin(k)*50, sin(k)*50, dim, dim);
    float x1 = sin(k)*50;
    float y1 = sin(k)*50;

    float x2 = cos(k)*abs(player.left.get(k))*150 + cos(k)*50;
    float y2 = cos(k)*abs(player.right.get(k))*100 + sin(k)*50;
    if (isForm) {
      line(x1, y1, x2, y2 );
    }
    else { 
      ellipse(sin(k)*50, sin(k)*50, dim, dim);
    }
  }
  if (colorCountOut >= 9) { 
    colorCountOut=0;
  }
  if (colorCountIn >= 9) { 
    colorCountIn=0;
  }
  popMatrix();

  //äußere Kreise aufruf
  fft.forward(player.mix);
  doubleAtomicSprocket();
}

//äußere Kreise
void doubleAtomicSprocket() {
  if (isSec) {
    noStroke();
    pushMatrix();
    translate(width/2, height/2);
    for (int i = 0; i < fft.specSize()/2 ; i++) {
      //y[i] = y[i] + fft.getBand(i)/100;
      x[i] = x[i] + fft.getFreq(i)/100;
      angle[i] = angle[i] + fft.getFreq(i)/1000;
      rotateX(sin(angle[i]/2));
      rotateY(cos(angle[i]/2));
      // stroke(fft.getFreq(i)*2,0,fft.getBand(i)*2);
     fill(fft.getFreq(i)*2, 0, fft.getBand(i)*2);
      pushMatrix();
      //Position der Kreise in Bezug den Umfang des Kreises
      translate((x[i]+250)%width/3, (y[i]+250)%height/3);
      //box(fft.getBand(i)/20+fft.getFreq(i)/15);
      sphere(fft.getBand(i)/20+fft.getFreq(i)/15);
      popMatrix();
    }
    popMatrix();
  }
}

void stop() {
  player.close();
  minim.stop();
  super.stop();
}

Sky

Thanks :) know I need help with the mainproblem :D

_vk

The code run smooth here. No performance issues that i noticed... I used other music of course. Mac book pro 2.7 ghz i7. 16GB ram. Intel HD Graphics 4000 ...

.

GoToLoop

16MB RAM? Is that from the '80s? ;)

Sky

hm thanks for the feedback. maybe there is a config issue on the test machine. i7 core with geforce 660M and 8GB Ram. But maybe there is a problem with win 8 and java. I'll give feedback tomorrow.

_vk

sorry, GB... 16GB of ram... : ) I'll edit above.