if (physicalEnvironment != null) { AudioDevice3DL2 mixer = new JavaSoundMixer(physicalEnvironment); mixer.initialize(); return mixer; } else
if (physicalEnvironment == null) { System.err.println("Java 3D: createAudioDevice: physicalEnvironment is null");
    public AudioDevice createAudioDevice() {	if (physicalEnvironment != null) {	    AudioDevice3DL2 mixer = new JavaSoundMixer(physicalEnvironment);            mixer.initialize();            return mixer;        }	else	    return null;    }