[JAVA3D] Exception in SoundScheduler

[Dietrich, Harald]

Hi,

I started implementing sound in my application and ended up in a very early
stage with an exception. I have really tried a lot, searched the forums and
the internet, but did not find a solution.
This is the code I added for sound processing:

        JavaSoundMixer jsm = new
JavaSoundMixer(view.getPhysicalEnvironment());
        jsm.initialize();

        String path = "file:sounds/song1.mid";
        MediaContainer media = new MediaContainer(path);
        BackgroundSound sound = new BackgroundSound();
        Bounds bounds = new BoundingSphere(new Point3d(), 1e6);
        sound.setSchedulingBounds(bounds);
        sound.setSoundData(media);
        sound.setLoop(-1);
        sound.setEnable(true);
        this.addChild(sound);

... and I get the followind exception when activating the scene:

java.lang.NullPointerException
        at
javax.media.j3d.SoundScheduler.renderChanges(SoundScheduler.java:955)
        at
javax.media.j3d.SoundScheduler.processMessages(SoundScheduler.java:253)
        at
javax.media.j3d.StructureUpdateThread.doWork(StructureUpdateThread.java:83)
        at javax.media.j3d.J3dThread.run(J3dThread.java:250)

Has anybody experienced the same problem? What am I doing wrong?

Thanks,
Harald

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