@Override
    public AudioNode clone() {
        AudioNode clone = (AudioNode) super.clone();
        return clone;
    }
Set the audio node as positional.
The position, velocity, and distance parameters affect positional
audio nodes. Set to false if the audio node should play in "headspace".

@param positional True if the audio node should be positional, otherwise
false if it should be headspace.
jme3-core/src/main/java/com/jme3/audio/AudioNode.java