We, too, use amplitude, naturally getting louder and louder if we don’t get the response that we want. It’s as though we try to make something happen just with the energy that we put into our voices. (Think of how hard you worked to train your child not to stand by the phone and scream “Mom” louder and louder rather than going to get you.) But dogs don’t respond as primates do, and although a loud noise can certainly startle them and get their attention, it doesn’t necessarily get their respect.
