private void applyListenerVelocity(Listener listener) {
        Vector3f vel = listener.getVelocity();
        al.alListener3f(AL_VELOCITY, vel.x, vel.y, vel.z);
    }
Applies all parameters from the listener object to OpenAL.
@param listener The listener object.
jme3-core/src/main/java/com/jme3/audio/openal/ALAudioRenderer.java