@Override
    public void read(JmeImporter im) throws IOException {
        super.read(im);
        InputCapsule ic = im.getCapsule(this);
        path = ic.readString("path", "");
        stream = ic.readBoolean("stream", false);
    }
Returns the underlying audio node of this sound track
@return the pre-existing instance
jme3-core/src/main/java/com/jme3/cinematic/events/SoundEvent.java