AudioDriver

import processing.core.PApplet;
import beads.*;
import org.jaudiolibs.beads.*;
import java.util.Arrays;
import java.io.*;
import java.net.URL;
import javax.sound.sampled.*;
import java.io.File;
String audioType = "file";
String pathName = "/Users/johnwaldo/Downloads/beep-01a.wav";
String desiredAction = "play";
AudioContext ac;
Frequency f;
Glide fGlide;
WavePlayer wPlayer;
PowerSpectrum ps;
float averageFrequency = 400.0;
color fore = color(255, 255, 255);
color back = color(0,0,0);
/*public AudioDriver(String at, String pn, String da) {
  audioType = at;
  pathName = pn;
  desiredAction = da;
} */
void setup() {
 if (audioType == "microphone" && desiredAction == "frequency") {
   size(600,600);
ac = new AudioContext();
Gain g = new Gain(ac, 2, .01);
ac.out.addInput(g);
UGen micIn = ac.getAudioInput();
fGlide = new Glide(ac, 50, 10);
wPlayer = new WavePlayer(ac, fGlide, Buffer.SINE);
g.addInput(wPlayer);
ShortFrameSegmenter sfs = new ShortFrameSegmenter(ac);
sfs.addInput(micIn);
FFT fft = new FFT();
sfs.addListener(fft);
ps = new PowerSpectrum();
fft.addListener(ps);
f = new Frequency(44100.0f);
ps.addListener(f);
ac.out.addDependent(sfs);
ac.start();
 }
 else if (audioType == "file" && desiredAction == "play") {
   frameRate(200);
size(400,400);
ac = new AudioContext();
File inputFile;
try { 
inputFile = new File(pathName); 
Noise n = new Noise(ac);
String audioFileName = inputFile.getAbsolutePath();
SamplePlayer player = new SamplePlayer(ac, SampleManager.sample(audioFileName));
Gain g = new Gain(ac, 2,2);
g.addInput(player);
ac.out.addInput(g);
ac.start();}
catch (Exception e) {System.out.println("Not a valid pathName"); }

 }
 else if (audioType == "file" && desiredAction == "compression") {
   frameRate(200);
size(400,400);
ac = new AudioContext();
File inputFile;
try { 
  inputFile = new File(pathName);
Noise n = new Noise(ac);
String audioFileName = inputFile.getAbsolutePath();
SamplePlayer player = new SamplePlayer(ac, SampleManager.sample(audioFileName));
Gain g = new Gain(ac, 2,2);
g.addInput(player);
ac.out.addInput(g);
ac.start();}
catch (Exception e) {System.out.println("Not a valid pathName"); }

 }
 else if (audioType == "file" && desiredAction == "frequency") {
  frameRate(200);
size(600,600);
ac = new AudioContext();
File inputFile;
try { 
inputFile = new File(pathName);
Noise n = new Noise(ac);
String audioFileName = inputFile.getAbsolutePath();
SamplePlayer player = new SamplePlayer(ac, SampleManager.sample(audioFileName));
Gain g = new Gain(ac, 2,2);
g.addInput(player);
ac.out.addInput(g);
ShortFrameSegmenter sfs = new ShortFrameSegmenter(ac);
sfs.addInput(ac.out);
FFT fft = new FFT();
sfs.addListener(fft);
ps = new PowerSpectrum();
fft.addListener(ps);
ac.out.addDependent(sfs);
ac.start(); }
catch (Exception e) {System.out.println("Not a valid pathName"); }

 }
}


void draw() {
if (audioType == "microphone" && desiredAction == "frequency") {
   background(back);
  stroke(fore);
  if(ps == null) return;
  float[] features = ps.getFeatures();
  if(features != null) {
    //scan across the pixels
    for(int i = 0; i < width; i++) {
      int featureIndex = i * features.length / width;
      int vOffset = height - 1 - Math.min((int)(features[featureIndex] * height), height - 1);
      line(i,height,i,vOffset);
    }
  }
}
else if (audioType == "file" && desiredAction == "play") {
loadPixels();
  //set the background
  Arrays.fill(pixels, back);
  //scan across the pixels
  double addVar = 1;
  double multVar = 2;
   for(int i = 0; i < width; i++) {
    //for each pixel work out where in the current audio buffer we are
    int buffIndex = i * ac.getBufferSize() / width;
    //then work out the pixel height of the audio data at that point
    float vOff = ac.out.getValue(0,buffIndex);
    int vOffset = (int)((addVar + ac.out.getValue(0,buffIndex)) * height / multVar);
    vOffset = min(vOffset, height);
    try {
    pixels[vOffset * height + i] = fore;
    }
    catch (Exception e) {
      if (vOffset*height+i < pixels.length) {
      multVar*= 1.75;
      addVar*=1.75;
    }
    else {
      multVar/= 1.75;
      addVar/=1.75;
    }
  }
  updatePixels();
}
}
else if (audioType == "file" && desiredAction == "compression") {
  loadPixels();
  //set the background
  Arrays.fill(pixels, back);
  //scan across the pixels
    double multVar = 2;
    double addVar = 1;
   for(int i = 0; i < width; i++) {
    //for each pixel work out where in the current audio buffer we are
    int buffIndex = i * 4 / width;
    //then work out the pixel height of the audio data at that point
    float vOff = ac.out.getValue(0,buffIndex);
    if (vOff < .15) { 
      ac.out.setGain(ac.out.getGain()+.01);
      ac.out.setValue(ac.out.getValue(0,buffIndex)+.01);
    }
    else if(vOff > .25) { 
      ac.out.setGain(ac.out.getGain()-.01);
      ac.out.setValue(ac.out.getValue(0,buffIndex)-.01);
    }
    int vOffset = (int)((addVar + ac.out.getValue(0,buffIndex)) * height / multVar);
    vOffset = min(vOffset, height);
       try {
    pixels[vOffset * height + i] = fore;
    }
    catch (Exception e) {
      if (vOffset*height+i < pixels.length) {
      multVar*= 1.75;
      addVar*=1.75;
    }
    else {
      multVar/= 1.75;
      addVar/=1.75;
    }
  }
  }
  updatePixels();
}
else if (audioType == "file" && desiredAction == "frequency") {
background(back);
  stroke(fore);
  if(ps == null) return;
  float[] features = ps.getFeatures();
  if(features != null) {
    //scan across the pixels
    for(int i = 0; i < width; i++) {
      int featureIndex = i * features.length / width;
      int vOffset = height - 1 - Math.min((int)(features[featureIndex] * height), height - 1);
      line(i,height,i,vOffset);
    }
  }
}
}