I guess if we had identical ears and brains, and occupy the same space and time, we would probably hear the same thing. There is no gurus, just a moment in time/space for you. You must have experienced sitting down to listen to music and find every sounds like crap. Other time it sounds the best.
@fabrice63
I think I've said this countless times by now.
This kind of objection is just an extreme in search of an absolute truth that doesn't exist.
Your system sounds good when you don't feel like turning it off after five minutes of it playing and if it inspires pleasant sensations.
Why do you ask me something for which you already know there is no "mathematical" answer?
Who benefits?
I think I've said this countless times by now.
This kind of objection is just an extreme in search of an absolute truth that doesn't exist.
Your system sounds good when you don't feel like turning it off after five minutes of it playing and if it inspires pleasant sensations.
Why do you ask me something for which you already know there is no "mathematical" answer?
Who benefits?
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I totally agree (also) with this.
Just as I said elsewhere almost a year ago.
https://www.diyaudio.com/community/threads/why-the-objectivists-will-never-win.403848/post-7477208
We haven't and nobody have , it never happened and never will , you know why , because we are ALL singular and differents , thanks god for that 😎
but let's stick to the thread , when it is low enought ??
for me and my poor old ears and brain , -100 db is fair enough , in very precise environment and with some very few records
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I can't imagine meeting my identical self. We would agree to kill each other from the outset.
EDIT: I cannot imagine a parallel universe exist.
EDIT: I cannot imagine a parallel universe exist.
I agree, as long as certain values are reached. After that point, you can concentrate on other things.
See, it's nice to have something to perfection but it's pointless to have one single thing perfect while neglecting others. I am well aware that the slew rate is a two edged sword too, it's just an example because you've mentioned it. But if your amp does one thing perfect and other criteria not, then it's not a perfect amp. You expected praise but got blowback.
Maybe others can hear things you can't (or haven't been able to notice yet). I haven't heard your amp and I can't tell what (or if at all) something else should be improved but other people have other criteria for judging the sound and their point of view is equally valid like yours.
Ironically, the noise and distortion I claim is produced by non audio things in the room cannot be measured. Which is a big problem for the pro science measurement crowd. Since the perception of the sound is what’s important, much more so than amplifier distortion/noise - even the TOTAL of all noise and distortion produced by the audio system, including house AC, amps, cables, room acoustic anomalies. Of course, everyone gets used to the distortion/noise in his system, usually believing it to be very low. “My system sounds fabulous!.” 😬
Even if we had identical brains and ears we would all judge differently.
Key word: perception. What you percieve is as much (or more) depending on what your history in this is, what your expectations are, what your friends have told you, how much the equipment costs, etc, etc.
The brain/ear is only of limited influence.
This is the reason why older people that have their 10,000hrs listening behind them can often much better judge equipment even when their hearing has deteriorated in the physical sense.
Jan
I met several person who notice small sound different after changed the speaker or change the amplifier very fast. I need to listened it several times to understand the different. I have good ears and still can hear high frequency. But notice small sound different is very hard. Maybe my short term memory is not good.
If you do not trade off everything with everything else, your design will never be completed and leave you wondering if there was something you could have done different. Take a five litre can of pure white paint. Mix into it one drop of black paint. Call this distortion of white. Now compare the difference between from what you can remember of original white paint with that containing one drop of black. Is this change significantly distorted from the original?
One can beat a dead donkey as much as you can, but it will remain dead. Nothing to perceive here. However, if you do not know what dead is, you will continue to beat it until it gets up and pull the cart. Watch Monty Python with the parrot. Impurity in sound is the same, if you don't know what it is or should be you cannot imagine it. If your colleague tells you your system distorts horribly and you had no idea do you take his perception as being truthful or just trying to show his own ignorance.
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Lets change the subject to noise. Does a chap living in a bustling city, say Amsterdam, New York or Kursk anywhere it is pretty noisy, have a better perception of the quality of his system than say someone living in Antarctica on a lovely sunny Sunday afternoon with not a breath of wind. There are no room boundaries or interference because he is outside in the open as well as being young with inconceivable good hearing. Would he be content with his mediocre DIY system or does he need something extraordinary to be even moderately enjoyable if at all.
Lets flip this upside down. Is it they guy in the city than needs the extraordinary system to be able to hear anything intended properly at all?
Everyone will have experienced that it sounds "cleaner" at night: both the noise, these frequencies, are less, and the main network is less contaminated: here too the frequencies, swinging, that modulate us and the audio system, are less. Then there are all the EMFs that modulate us, and the audio system...-)
If I conclude that an organism is a frequency, swinging, context...-)
If I conclude that an organism is a frequency, swinging, context...-)
Although I can't tell for certain, because I have no molecular experience, is that they say every molecule vibrates. Does this vibration affect our perception of anything music or non music.
Short answer: no. However, the type of material does affect the sound, for sure. i am confident that human perception of sound and video/images is affect by these materials because early man developed his survival capabilities based on what existed way back in prehistoric times. All natural materials like trees are not on man’s radar of things that might be threats to his survival. his radar was mostly tuned to animals that could eat him. fastvfirward to modern times, man made materials like bookcases, steel, aluminum, glass, plastic - those materials represent threats, or at least unknown threats. If those unnatural things are removed from the room, the perceived threat goes away. And voila! The sound improves.
I removed the plastic ash tray from my room and viola!!! it sound fantastic. I have rubber wheels on my wheel chair, do you think if I take them off there may be another improvement? I must now find an old wooden wheel chair for further enhancements. My speaker cones are made of Bextrene, I wonder if it was made of woven grass if it would not be better.
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good lord Jan, I have been hearing, maybe not listening al of the time but, closer to 300 000 hrs, do I qualify for a perceived prize?
Jokes aside, I use a pair of Rogers LS3/5a on my desktop, they are almost as old as I am 
but I asked my wife to put them behind me (Jan suggested) and I was amazed how much better (different) it sounded. Thanks Jan, your joke was actually in very good taste. I hear probably more than 50% reflected sound from my position from the wall in front of me. The whole stage opened up (no pun). This was probably the most interesting takeaway from this thread. I will leave them where they are from now on. Maybe Dr Boze was on to something.
but I asked my wife to put them behind me (Jan suggested) and I was amazed how much better (different) it sounded. Thanks Jan, your joke was actually in very good taste. I hear probably more than 50% reflected sound from my position from the wall in front of me. The whole stage opened up (no pun). This was probably the most interesting takeaway from this thread. I will leave them where they are from now on. Maybe Dr Boze was on to something.
Yes, it does. But differently than you think because it's not the molecules of the membrane etc, it's the molecules of the air, so air temparature, pressure, moisture change how the sound is perceived.