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Distortion down to -300 dB, what exactly does that mean physically?

Rob Watts has mentioned on more than one occasion that he can hear and measure distortion down to -300 dB.
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JSmith
 
No, that was in 2017, in 2018 Sir Watts was already hitting -350dB, and still going... o_O

"...and what I've discovered is that it doesn't matter how small the error is, if it is an error, it's audible...and it's audible in depth collapses"

"...and I thought... I can't publish this numbers because the Sound Science Brigade will say I'm a lunatic... or that I'm just trying to create sales and come up with a load of bullshit about products..."

Well, can't argue with that last one... XD XD XD

Editor's Note: Well, all the great people of science had a defining eureka moment in their life, Sir Newton had an apple fall on his head from a tree... Sir Watts had a dog bark at him from six miles away.
 
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Oh wait... I think I found a scientific explanation to all of this... :facepalm:

"...in the past I designed, ahem, cables, interconnect cables, loudspeakers cables..."

Make sure you don't miss the 2nd installment "Cats and Time Travel", a scientific gem in its own right.
 
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That was in 2017, in 2018 he was already hearing -350dB, by now it's probably -500dB.
 
If talking electrons, they are usually measured in Coulombs.

Coulomb is defined as 6,241,509,074,460,762,607.776 electrons

An Ampere is a Coulomb of electrons passing a point in one second.

-300 dB is a ratio of 1 to 8.91e-16, or 0.000000000000000891

If I have the math right -300db in current would be 5,561 electrons passing a point in a second if compared to an ampere.

If starting with a milliamp (closer to signal level), 5 electrons.

If I have the math wrong it's mostly in the 10log vs 20log part.
Do we know what happens to the signal between the electrons? ;)
 
I attended of his latest talks. At the end I asked him if he could hear such differences blind. He said he didn't believe in blind tests because they are too stressful. I let him be at that point. :)
I keep hearing about blind tests' being stressful. Is this something that audio reviewers and high-end industry guys just say? Or is there evidence that blind tests actually cause stress on their own, separate from the possibility of exposing some people as fakers?

If the latter, it makes me wonder about hearing tests. When you take a hearing test, a light doesn't flash telling you that a tone is coming out of the headphones. Shouldn't that be stressful? Based on the results of that test, you learn whether something is wrong with your ears or nervous system. Yet I never found the hearing test experience to be too stressful.
 
I keep hearing about blind tests' being stressful. Is this something that audio reviewers and high-end industry guys just say? Or is there evidence that blind tests actually cause stress on their own, separate from the possibility of exposing some people as fakers?

If the latter, it makes me wonder about hearing tests. When you take a hearing test, a light doesn't flash telling you that a tone is coming out of the headphones. Shouldn't that be stressful? Based on the results of that test, you learn whether something is wrong with your ears or nervous system. Yet I never found the hearing test experience to be too stressful.
What they never explain is why that stress magically vanishes when testing level, frequency response, localization, compression…

Lame excuses for avoiding basic controls are rampant in all sorts of quackery, not just audio.
 
What they never explain is why that stress magically vanishes when testing level, frequency response, localization, compression…

Lame excuses for avoiding basic controls are rampant in all sorts of quackery, not just audio.
Yes, was thinking of sommeliers.
 
I keep hearing about blind tests' being stressful. Is this something that audio reviewers and high-end industry guys just say? Or is there evidence that blind tests actually cause stress on their own,
Imagine how stressful blind tests for medicines that determine live or death must be. Nevertheless these are common practice.
 
Do we know what happens to the signal between the electrons?

I suppose it would depend upon how the electrons move between atoms. Quantum or Classical move - I don't know.

---

Ok, upon a little reading - copper has a "swarm" of a gazillion free electrons, so I guess a few get nudged past wherever the measurement point is, and the "average" of their random motions is taken as the flow, so, it's like analog, though i suppose they have to move at least a Planck length, or 1.616255(18)×10−35 m, so it's a bit jerky.
 
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Why does he feel he needs the BS when his designs measure so well.
Keith
 
Because he believes we can perceive time delays of 1 / 250000 of a second. Or at least that cats can.

EDIT: no, I wasn't kidding about the cats (or time travel ;-) ), Sir Watts mentions a cat brain probing experiment from the 1950s.
 
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