Hey guys.  I am basically trying to drag and drop in an mp3 file into my sketch and have that mp3 placed into an Audiochannel.  After that I want to be able to press a key to play it.

The way I approached it was to get the two examples (I pretty much combined one example from each library) working individually in one sketch.  That worked fine.

Next I tried to add in myFile into myChannel=new AudioChannel("01 Intro.mp3); making it myChannel=new AudioChannel(myFile);

Where ever I put that piece of code I get "The constructor AudioChannel(File) is undefined."  I don't know where to put it...or if thats how to go about it.  I tried letting myChannel equal something from the get go and then having the user press the S key to change it but I still get the undefined error.  My logic is off somewhere but I cant find it.  Here's the code, thanks in advance for anyone that can help.  


Code:

/*
 * Trying to drag and drop an mp3 into the sketch and then played by
 * pressing the P button. 
 */



import krister.Ess.*;
import sojamo.drop.*;

AudioChannel myChannel;
FFT myFFT;

int bufferSize;
int bufferDuration;

SDrop drop;

void setup() {
  size(256,200);
  drop = new SDrop(this);

  // start up Ess

    Ess.start(this);        //Has to be here or Ess doesn't work

  myChannel=new AudioChannel("01 Intro.mp3");
  bufferSize=myChannel.buffer.length;
  bufferDuration=myChannel.ms(bufferSize);

  myFFT=new FFT(512);

  frameRate(30);
  noSmooth();
}

void draw() {
  background(0,0,255);            //This draws the cool stuff
  drawSpectrum();
  drawSamples();
}


void dropEvent(DropEvent theDropEvent) {    //allows me to drag n drop files/folders
  if(theDropEvent.isFile()) {
    // for further information see
    // http://java.sun.com/j2se/1.4.2/docs/api/java/io/File.html
    File myFile = theDropEvent.file();
    println("\nisDirectory ? "+myFile.isDirectory()+"  /  isFile ? "+myFile.isFile());
    println(myFile);
    if(myFile.isDirectory()) {
      println("listing the directory");

      // list the directory, not recursive, with the File api. returns File[].
      println("\n\n### listFiles #############################\n");
      println(myFile.listFiles());
    }
    if(keyPressed) {
      if (key == 's' || key == 'S') {
        myChannel=new AudioChannel(myFile);
      }
    } 
  }

}

void drawSpectrum() {    //helps to draw the cools stuff along with drawSamples
  noStroke();

  myFFT.getSpectrum(myChannel);

  for (int i=0; i<256; i++) {
    float temp=max(0,185-myFFT.spectrum[i]*175);
    rect(i,temp+.5,1,height-temp+.5);
  }
}


void drawSamples() {    //Draws cool stuff along with drawSpectrum
  stroke(255);

  // interpolate between 0 and writeSamplesSize over writeUpdateTime
  int interp=(int)max(0,(((millis()-myChannel.bufferStartTime)/(float)bufferDuration)*bufferSize));

  for (int i=0;i<256;i++) {
    float left=100;
    float right=100;

    if (i+interp+1<myChannel.buffer2.length) {
      left-=myChannel.buffer2[i+interp]*75.0;
      right-=myChannel.buffer2[i+1+interp]*75.0;
    }

    line(i,left,i+1,right);
  }
}  

void keyPressed() {    //toggles for on and off
  if(keyPressed) {
    if (key == 'p' || key == 'P') {
      if (myChannel.state==Ess.PLAYING) {
        myChannel.stop();
      } 
      else {
        myChannel.play(Ess.FOREVER);
      }
    }
  }
}

// clean up Ess before exiting

public void stop() {
  Ess.stop();
  super.stop();
}