I even listed the signal and measurement requirements for a given measurement and its analysis to be comparable to what human hearing says the signal sounds like.
I did this in some posts, a few years back, in the blowtorch thread over at DIYAudio.
There were enough audio engineers in that thread that someone should have paid attention. I outlined the signal type, it's measurement or measurement weighting... and how this correlated to human hearing.
Not one word said in objection, utter silence. But that might have been a good thing, maybe some of them were listening. Then this equation: Proper question = proper answer.
On of the answers is that you can't get back the signal you pt in, each and very single part and wire that deals with signal is distortion/noise additive or obscuring in nature, an all done slower than the original delta in simplicity an complexity of signal. We are always in a reduced situation.
Which is why false detail swamped in distortions is the norm, which is why some have such trouble in discernment. And spending money in incorrect ways to try and pull out information that is not actually there. All we can do is make a slightly less rich and slightly darker copy of the original signal, nothing more. A chain of components and cables that makes things seem more open is exactly that, 'makes things seem'.
People don't want to hear the truth of the matter, they just want to noise shape their way into perceiving more detail.
Then play the game of shaping that noise and taming it, one cable or component chained with the next. fighting their way through balancing out slow dark fog and hyper etched screech. and the more you chain together the more it comes out as "thumpy screech". The end game of a system package acting as a loudness button slash transient modifier, all chock full of metallic originated noise. It can get very very bad in some systems. So bad I can't stand being in the same room.
Some audiophiles have become so connected to such gear and such intent, that you can't explain to them that they've pooched the idea of real dynamics without noise so badly ... that their $10-20-50-100k systems are a complete waste of time. so unmusical that it is actually painful to hear.
