[java3d] Stopping Applet Sound

[T.G. Richards]

I'm having trouble making a PointSound object within an applet stop playing. When the 
user has finished with the applet and selects a new HTML page, I want the Sound to 
stop too. But at the moment the Sound refuses to die until the Browser is shut 
down(!). 

The code snippet below is from my applet - at runtime the setEnable(false) method 
appears to be successful (i.e. generates zero errors) but the Sound continues playing. 
I'd be really grateful if someone could have a look at it and maybe tell me what else 
I need to do to stop the Sound.

Thanks very much,
Tom Richards
University of Bath

public class ThreeDfp extends JApplet
{
 private PointSound pumpSound;

 public void init()
 {
  pumpSound = new PointSound();
  pumpSound.setCapability(PointSound.ALLOW_ENABLE_WRITE);
  pumpSound.setCapability(PointSound.ALLOW_INITIAL_GAIN_WRITE);
  pumpSound.setCapability(PointSound.ALLOW_SOUND_DATA_WRITE);
  pumpSound.setCapability(PointSound.ALLOW_SCHEDULING_BOUNDS_WRITE);
  pumpSound.setCapability(PointSound.ALLOW_CONT_PLAY_WRITE);
  pumpSound.setCapability(PointSound.ALLOW_RELEASE_WRITE);
  pumpSound.setCapability(PointSound.ALLOW_DURATION_READ);
  pumpSound.setCapability(PointSound.ALLOW_IS_PLAYING_READ);
  pumpSound.setCapability(PointSound.ALLOW_POSITION_WRITE);
  pumpSound.setCapability(PointSound.ALLOW_LOOP_WRITE);

  MediaContainer pumpSample  = new MediaContainer();
  pumpSample.setCapability(MediaContainer.ALLOW_URL_WRITE);
  pumpSample.setCapability(MediaContainer.ALLOW_URL_READ);

  <SNIP CODE FOR LOADING SOUND FILE INTO MediaContainer>

  pumpSound.setEnable(true);
  pumpSound.setLoop(-1);
  pumpSound.setContinuousEnable(false);
  pumpSound.setReleaseEnable(false);
  pumpSound.setSoundData(pumpSample);
  pumpSound.setInitialGain(1.0f);
  Point3f pumpSoundPos = new Point3f(0.0f, 0.0f, 0.0f);
  pumpSound.setPosition(pumpSoundPos);
 }

 public void stop()
 {
  try
  {
        pumpSound.setEnable(false);
        System.out.println("Stopped sound");
  }
  catch (Exception e)
  {
        System.out.println(e);
  }
  System.out.println("Stopping applet");
 }
 public void destroy()
 {
  try
  {
        pumpSound.setEnable(false);
        System.out.println("Stopped sound");
  }
  catch (Exception e)
  {
        System.out.println(e);
  }
  System.out.println("Destroying applet");
 }
}

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