The invention of measurements and perception


This is going to be pretty airy-fairy. Sorry.

Let’s talk about how measurements get invented, and how this limits us.

One of the great works of engineering, science, and data is finding signals in the noise. What matters? Why? How much?

My background is in computer science, and a little in electrical engineering. So the question of what to measure to make systems (audio and computer) "better" is always on my mind.

What’s often missing in measurements is "pleasure" or "satisfaction."

I believe in math. I believe in statistics, but I also understand the limitations. That is, we can measure an attribute, like "interrupts per second" or "inflamatory markers" or Total Harmonic Distortion plus noise (THD+N)

However, measuring them, and understanding outcome and desirability are VERY different. Those companies who can do this excel at creating business value. For instance, like it or not, Bose and Harman excel (in their own ways) at finding this out. What some one will pay for, vs. how low a distortion figure is measured is VERY different.

What is my point?

Specs are good, I like specs, I like measurements, and they keep makers from cheating (more or less) but there must be a link between measurements and listener preferences before we can attribute desirability, listener preference, or economic viability.

What is that link? That link is you. That link is you listening in a chair, free of ideas like price, reviews or buzz. That link is you listening for no one but yourself and buying what you want to listen to the most.

E
erik_squires
kosst_amojan
As far as audio systems go....
If the speakers produce mathematically perfect output, and if the source provides a perfect signal to an amplifier that perfectly amplifies it, and the sound is heard in a mathematically perfect environment, then the result will be indistinguishable from the live event. There’s very little guess work in this. We make art out of the compromises actual parts and materials force us to make. The best we can hope to accomplish is to creatively juxtapose failings in such a way as to mitigate their obvious nature. To understand those failings we must measure them and quantify them. Only then can we understand them and manipulate them. That’s how engineering works.

>>>>>Actually that’s NOT (rpt not) how engineering works. The input is not perfect to begin with and the output is always a distorted and noisy facsimile of the input, at least to some degree. Not to mention sometimes the *best sounding* device has the highest degree of distortion. How can that be?! 😛

It’s a BIG mistake to think of an audio system as a closed system. It’s a mistake to think that a device must be in the audio signal path to affect the sound. We know there are many independent variables that affect the sound we hear. Some of those variables can be controlled but many can’t. If the weather interferes with your listening experience you can wait until the sun comes out or if you don’t like the sound during the day you can wait until nighttime. You have to know what all the variables are to have a chance of controlling them. I do not even have to broach the touchy subject of things that go bump in the night. It’s a mistake to think for audio systems we are ruled by mathematics or engineering. Beauty is not created by mathematicians or engineers. Beauty is not objective. It’s subjective. Beauty is in the eye 👁 of the beholder.
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Why you can’t understand simple English is anybody’s guess. Have you considered going back to school? Maybe even picking up that GED?
kosst "@geoffkait, How can you use so many words yet say nothing that makes any sense?"  

Practice, practice, practice.  
jitter checks in with a whole lotta nothin’, his forte. All the lonely trolls, where do they all come from?