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
Nobody goes to CES to look at audio gear. That's why the audio press hardly bothers with it. It's where Onkyo displays their new Dolby Atmos surround sound receivers. Nobody that listens to music cares. 
Three things to try at home before passing judgement on what affects perception of sound and what doesn’t.

1. Remove all telephone books from the house or apartment and listen again.
2. Remove all cell phones from the house and listen again.
3. Remove all old newspapers and magazines from the house and listen again.
4. Take as many CDs and or LPs as you can carry outside and listen again.

You be the judge. You are the decider.
#3

If you are a hoarder and the room you listen to music is full of piles of newspapers, then yes, removing the newspapers will make an audible difference in what you hear from the music you are listening to. For one thing it will sound louder.



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If the 10,000 LPs are not stored in built-in wood cabinets with closed doors in the same room as the audio system then, yes, you should remove the LPs from the room.

As for 3,000 CDs I would think it would depend where there are located in regards to the fronts of the speakers and if the CDs are out in the open or housed/stored in a wood cabinet.

YMMV.


As for the LPs the  difference in before and after removal of SPL surely could be measured using an SPL meter.