Tks Julian and Ghenghis - glad its not just me. I lost 4-500 rpm in a Lance once and boy was it audible - not sure I would have noticed so rapidly with an ANR on.
Back to the initial point; if you have both levers almost closed in the descent, it's going to be pretty difficult to discern (other than from instrument cues which one has quit on you until you apply some more power. Let's face it, how much opposite rudder do you have booted in in the flare with one shut down.