BachRules, I tend to agree with Kenneth in many points. You can't ignore perception. One example that comes to mind is this: Have you ever watched the weather person say: It will be -5 degrees but feel like -17 with the wind. How do they measure the "it will feel like" part if it can vary from person to person?
But this thread is about the number that shows up on the thermometer, and that number is unaffected by your perception of the temperature; and so, human perception remains totally irrelevant for the intents and purposes of this thread.
If you really, really are unable to ignore perception, you will believe that your perception of the temperature will alter the number that shows on your thermometer. That would be egomaniacal, to imagine your perception alters the functioning of thermometers. But hey, we live in a world where authorities imprisoned Galileo for claiming the earth isn't the center of the solar system, after all.
By bringing human perception into this discussion, the most you can achieve is continued misunderstanding of the Natural-Volume button on your software. Suit yourself. Natural Volume isn't about what you perceive. It's about the objective motion of your speakers and objective waves of pressure passing through the air. How your brain perceives those pressure-waves is none of Natural Volume's business.
Now I'll leave you and Kenneth to agree that human perception is relevant to the functioning of the Natural Volume button on your software. I concede the election: The MIR Natural-Volume button functions however you and Kenneth decide by consensus. The machine-code compiled inside MIR will alter itself to accomodate your perception.
I have no more time for this lunacy, as I'd have no more time for egomaniacs believing their perception of the temperature alters the numbers a thermometer displays.