Hi,

I am quite new to processing and am getting a constructor error when compiling, this is my code for the logAverages.pde:
Code:

/**
 * Linear Averages
 * by Damien Di Fede.
 *  
 * This sketch demonstrates how to use the averaging abilities of the FFT.
 * 128 linearly spaced averages are requested and then those are drawn as rectangles.
 */

import ddf.minim.analysis.*;
import ddf.minim.*;
import processing.serial.*;

Serial myPort;  // Create object from Serial class
int val;	  // Data received from the serial port

Minim minim;
AudioPlayer jingle;
FFT fft;
FFTAnalyser analyser;

void setup()
{
  String portName = Serial.list()[0];
  myPort = new Serial(this, portName, 9600);
  
  size(512, 200, P2D);
  //minim = new Minim(this);
  
  //jingle = minim.loadFile("song.mp3", 2048);
  
  analyser = new FFTAnalyser(this, "song.mp3", 2048);
  
  // loop the file
  //jingle.loop();
  // create an FFT object that has a time-domain buffer the same size as jingle's sample buffer
  // and a sample rate that is the same as jingle's
  // note that this needs to be a power of two 
  // and that it means the size of the spectrum will be 1024. 
  // see the online tutorial for more info.
  //fft = new FFT(jingle.bufferSize(), jingle.sampleRate());
  // use 128 averages.
  // the maximum number of averages we could ask for is half the spectrum size. 
  //fft.linAverages(128);
  
  //fft.logAverages(60, 5);
  rectMode(CORNERS);
  
}

void draw()
{
  background(0);
  fill(0,0,255);
  // perform a forward FFT on the samples in jingle's mix buffer
  // note that if jingle were a MONO file, this would be the same as using jingle.left or jingle.right
  fft.forward(jingle.mix);
  int w = int(analyser.specSize()/analyser.avgSize());
  for(int i = 0; i < analyser.avgSize(); i++)
  {
    // draw a rectangle for each average, multiply the value by 5 so we can see it better
    rect(i*w, height, i*w + w, height - analyser.getAvg(i));
    if(i > 6)
	fill(255,0,0);
    
   
  }
  
   setDmxChannel(1,(int)(analyser.getAvg(10)*3));
   setDmxChannel(2,0);
   setDmxChannel(3,(int)(analyser.getAvg(0)));
   setDmxChannel(4,255);
  
  
}

void setDmxChannel(int channel, int value) {
  // Convert the parameters into a message of the form: 123c45w where 123 is the channel and 45 is the value
  // then send to the Arduino
  myPort.write( str(channel) + "c" + str(value) + "w" );
}

void stop()
{
  // always close Minim audio classes when you finish with them
  /*
  jingle.close();
  minim.stop();
  */
  analyser.stop();
  super.stop();
} 

and here is the code from my FFTAnalyser
Code:

import ddf.minim.analysis.*;
import ddf.minim.*;

public class FFTAnalyser {
    
  public float [] peaks; // peaks of the averages, aka "maxAverages" in other implementations
  public int [] peakHoldTimes; // how long to hold THIS peak meter?  decay if == 0
  public int peakHoldTime; // how long do we hold peaks? (in fft frames)
  public float peakDecayRate; // how quickly the peaks decay:  0f=instantly .. 1f=not at all
  public FFT fft;
  public float samplingRate;
  public int minBandwidth = 60;
  public int bandsPerOctave = 5;
  Minim minim;
  AudioPlayer jingle;
  
  
  public FFTAnalyzer(LogAverages parent, String filename, int sampleRate) {
    
    minim = new Minim(parent);
    jingle = minim.loadFile(filename, sampleRate);
    jingle.loop();
    fft = new FFT(jingle.bufferSize(), jingle.sampleRate());
    fft.logAverages(this.minBandwidth, this.bandsPerOctave);
     
	  
  }
  /*
  public setLogAverage(int minBandwidth, int bandsPerOctave){
  }
  */
  
  public float getAvg(int i){
    return this.fft.getAvg(i);
    }
    
  public float avgSize(){
    return this.fft.avgSize();
   }
   
  public float specSize(){
    return this.fft.specSize();
   }
   
  public void stop(){
  // always close Minim audio classes when you finish with them
  this.jingle.close();
  this.minim.stop();
  
  }
  
  
  
} 

The error im getting is:
The constructor LogAverages.FFTAnalyser(LogAverages, String, int) is undefined.

Can anyone help?

Edit: oh good, Quark spotted it.  Slippery devil.  I'll leave the rest of my comment though:

I assume you're using Eclipse or another straight Java editor because you're writing in Java style (declaring public/private, etc.)   If you're using the Processing IDE, you can remove all instances of "public" and "private" because everything is inside the PApplet class.  I would also suggest using different variable names for objects in a child class that are essentially pointers to the parent class object (e.g. Minim minim = parent;) -- so you don't end up referring to the wrong one from inside a child class method.

Heh, thanks.  I had forgotten all about .java tabs.  Excuse me.  X|