@prof
Putting aside that rather rash conclusion...
This is not a rash conclusion. The article logically shows that the currently known methods cannot determine ALL the characteristics of sound in the way that a person perceives it, and most importantly - this will never be possible as long as audio engineers and acoustics are trying to make up music from its parts.
@prof
The typical audiophile gear, cables included, come with a technical story from the manufacturer. "Here’s a technical problem that can undermine the performance of X item; Here’s how we solve that problem." And you are told about "skin effect," "radiation," "electrical interference," "dielectrics" "active shielding" and on and on. In other words, all type of phenomena that we know through being able to detect with instruments and measure. Then they lay out some claim about how they have technically addressed the problem.
If we are talking about wires, then all these explanations are made either out of ignorance of the basics of audio engineering, or specifically for the technocratic majority, so as not to frighten the buyer with "mysticism and other anti-science".
@prof
Well, not everything is measurable you know! Stop looking to measurements!
If you could read Essien's article carefully, you would have understand that there are things in a musical signal that can be measured, and there are things that we can only perceive subjectively. Scientists initially failed to create a correct theory that would explain all the nuances of human perception. Therefore, a qualified amp engineer only measures distortion, Linearity, and power. He does this to make sure that he has a reliable "framework" for everything else that is more important. More important is what we can only determine by ear - the results of manipulations with wires and their directions, various materials, and other tricks familiar to audiophiles. These manipulations significantly affect the perception of music, but they do not affect the technical characteristics to the extent that they become noticeable by ear and it would make sense to measure them
By the way, you came up with the last phrase in a fit of emotion. Personally, I am not against measurements when it comes to power frequency, noise and other technical things. I'm just saying that not everything can be measured. This is the same thing that follows from the Essien article.
@prof
SR for instance talks about how you will hear a significant increase in frequency linearity with one of their cables. That would be measurable, right?
No. When discussing the sound of cables, we can only talk about entangible changes in the sound, here we mean the coloration: “…the accentuation (or darkening) of certain frequency regions of the sound range, which is marked by our perception”.. The distortion of the electrical signal in the cable is so small that no person is able to catch them.
You seem to understand the basics of electricity. I have a counter question - can you calculate how much the signal level in the acoustic cable should be changed so that an ordinary person can hear the difference, if it is known that a person is able to determine the difference in the volume change of at least 1 dB (psychoacoustics data), the output voltage of the amplifier =10 volts, and the speaker resistance =4 ohms?