Beads unable to load mp3s

SnailPropulsionLabs

I'm using Beads to play mp3s and affect their playback rate. Beads 1.01, Processing 3.3, Windows 10.

X-Posted here

I've encountered an issue when loading mp3s that some will be unable to play and throw the error below.

I've uploaded an mp3 that doesn't work here: r&s and here: movieaudio The movieaudio doesn't throw the error, it just gets stuck on line 23 or 25 in the code.

The code is a manipulation of the sampling_03.pde example from Sonifying Processing.

Any light that can be shed on this would be immensely appreciated. Thanks.

Error:

AudioContext : no AudioIO specified, using default => beads.JavaSoundAudioIO.
java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at processing.core.PApplet.selectCallback(PApplet.java:6529)
    at processing.core.PApplet.access$0(PApplet.java:6522)
    at processing.core.PApplet$3.run(PApplet.java:6434)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
    at java.awt.EventQueue.access$500(EventQueue.java:97)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.awt.EventQueue$3.run(EventQueue.java:703)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: java.lang.NullPointerException
    at beads.SamplePlayer.<init>(Unknown Source)
    at Sound_BeadsII.fileSelected(Sound_BeadsII.java:47)
    ... 21 more

Code:

import beads.*;
import java.util.Arrays; 
AudioContext ac;
SamplePlayer sp1;
PowerSpectrum ps;
Gain sampleGain;
Glide gainValue;
Glide rateValue;
color fore = color(255, 102, 204);
float rangeAvg = -1, timeValue = 2;

void setup() {
  size(800, 600);

  ac = new AudioContext();
  selectInput("Select an audio file:", "fileSelected");
  background(0); 
  //1440 frames / 60 seconds = 0.0625 seconds/frame
}

void fileSelected(File selection) {
  println("here fileselection");
  String audioFileName = selection.getAbsolutePath();
  println("here loaded from absolutepath");
  Sample sample = SampleManager.sample("2048", audioFileName);
  println("here loaded selected file");
  //SamplePlayer player = new SamplePlayer(ac, sample);
  //Gain g = new Gain(ac, 2, 0.2);
  //g.addInput(player);
  //ac.out.addInput(g);
  sp1 = new SamplePlayer(ac, sample);
  println("here initialising sp1");

  //try {  
  //  sp1 = new SamplePlayer(ac, sample);
  //  //sp1 = new SamplePlayer(ac, new Sample(sketchPath("") + "/data/Hellboy_audio.mp3"));
  //}  
  //catch(Exception e) {
  //  println("Exception while attempting to load sample!");
  //  e.printStackTrace(); //print a technical description of the error
  //}
  // note that we want to play the sample multiple times
  sp1.setKillOnEnd(false);
println("here to killonend");
  rateValue = new Glide(ac, 1, 30); // initialize our rateValue Glide object
  sp1.setRate(rateValue); // connect it to the SamplePlayer
println("here setting sp1.ratevalue");
  // volume of our sample player
  gainValue = new Glide(ac, 0.7, 30);
  sampleGain = new Gain(ac, 1, gainValue);
  sampleGain.addInput(sp1);

  ac.out.addInput(sampleGain); // connect the Gain to the AudioContext

  //analysis chain
  ShortFrameSegmenter sfs = new ShortFrameSegmenter(ac);
  sfs.addInput(ac.out);
  FFT fft = new FFT();
  ps = new PowerSpectrum();
  sfs.addListener(fft);
  fft.addListener(ps);
  ac.out.addDependent(sfs);
  ac.start();
}

void draw() {
  //float halfWidth = width / 2.0;
  //gainValue.setValue((float)mouseY / (float)height); // set the gain based on mouse position along the Y-axis
  //rateValue.setValue((((float)mouseX - halfWidth)/halfWidth)+1); // set the rate based on mouse position along the X-axis

  background(0);
  stroke(fore);

  if (ps == null) return;
  float[] features = ps.getFeatures();

  if (features != null) {

    for (int i = 0; i < width; i++) {
      int featureIndex = i * features.length / width/2;
      int vOffset = height - Math.min((int)(features[featureIndex] * height), height);
      rangeAvg += vOffset;
      //println("rangeAvg: " + rangeAvg);
      line(i, 0, i, vOffset);
    }
    rangeAvg = rangeAvg / width;
    println("rangeAvg Avg: " + rangeAvg);

    if      (rangeAvg > 0   && rangeAvg < 100) {rateValue.setValue(timeValue/4); println("1/4x");}
    else if (rangeAvg > 100 && rangeAvg < 200) {rateValue.setValue(timeValue/2); println("1/2x");}
    else if (rangeAvg > 200 && rangeAvg < 300) {rateValue.setValue(timeValue);   println("1x");}
    else if (rangeAvg > 300 && rangeAvg < 400) {rateValue.setValue(timeValue*2); println("2x");}
    else if (rangeAvg > 400 && rangeAvg < 500) {rateValue.setValue(timeValue*3); println("3x");}
    else if (rangeAvg > 500 && rangeAvg < 600) {rateValue.setValue(timeValue*4); println("4x");}

  }
}