Dec 2, 2018 at 8:27 AM Post #11,146 of 19,073
I think I am getting a handle of your style of debate...and it quite frankly seems a tad disingenuous. Both you and Keith agree and agree with the parts you can't refute...and then you round off with a snide 'what if' scenario in order to keep the thread injected with just an ounce of doubt.
The above post is a perfect illustrator of this. We've talked about this thing before and you insist on undermining the test by making a destinction between "normal listening" and listening without sight involved.
I would make the case that they are the same..unless you vehemently fight the test with every fibre of your body. Most folks I know close their eyes when they REALLY listen to music. They weed out any superfluous distractions so as they can focus entirely on the magnificence that is patterned sound.
Furthermore, and as has been told to you previously on a number of occasions, you are free to test the way you want to as long as you don't look at the merchandise ie take as loooooong as you want - use a day, a weekend whathaveyou in order to satisfy your curiosity.

They're not the same. If you don't understand what I and others have been saying about this, I encourage you to do some reading about the science of perception and memory to learn more, don't just rely on forum blather and your own personal thoughts and experiences.

Regarding the more general point:

"Doubt is not a pleasant condition, but certainty is an absurd one." - Voltaire​

I'm very wary of people who are too certain about too many things. In my experience, they tend to cause trouble for themselves and others.
 
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Dec 2, 2018 at 9:38 AM Post #11,147 of 19,073
They're not the same. If you don't understand what I and others have been saying about this, I encourage you to do some reading about the science of perception and memory to learn more, don't just rely on forum blather and your own personal thoughts and experiences.

Regarding the more general point:

"Doubt is not a pleasant condition, but certainty is an absurd one." - Voltaire​

I'm very wary of people who are too certain about too many things. In my experience, they tend to cause trouble for themselves and others.

Again how can you possibly ascertain any of this if a) you don't know the basic fundamentals of the science behind audio b) you have never even bothered to try a simple blindtest?

All this back n forth aims to be as esoteric and philosophically dense as possible so as finding any form of scientific footing gets to be impossible. People read what they so want to be the truth and all the pearls from actual professionals who've been working hands-on with these matters for decades get lost in translation...which of course is a tactic on it's own. The foul bit of the equation though seems to be that it is wholly intended by people that never made an ounce of effort in finding out for themselves. Bye tobias never happens.
 
Dec 2, 2018 at 9:44 AM Post #11,148 of 19,073
My impression is more something like this "I agree there are no unicorns but what about fairies?"

'I bought some expensive hifi gizmo and now it seems like these guys with their science and all tell me it's placebo..fugazi..my mind playing tricks on me!!??!!?! Me!??! Hah! I damn well know what I hear!'
 
Dec 2, 2018 at 9:57 AM Post #11,149 of 19,073
Again how can you possibly ascertain any of this if a) you don't know the basic fundamentals of the science behind audio b) you have never even bothered to try a simple blindtest?

All this back n forth aims to be as esoteric and philosophically dense as possible so as finding any form of scientific footing gets to be impossible. People read what they so want to be the truth and all the pearls from actual professionals who've been working hands-on with these matters for decades get lost in translation...which of course is a tactic on it's own. The foul bit of the equation though seems to be that it is wholly intended by people that never made an ounce of effort in finding out for themselves. Bye tobias never happens.

I think I know the "basic fundamentals of the science behind audio" - do you? And yes, I've done blind tests. You seem to be quick to make assumptions in order to support what you want to believe. Sorry that you find much of this to be "esoteric" and "dense," but reality isn't obligated to be simple just because we wish it was simple. Perhaps the science aspect of this stuff isn't your cup of tea.
 
Dec 2, 2018 at 10:17 AM Post #11,150 of 19,073
I am not objecting to you objecting to my lack of knowledge - I thought I'd made that perfectly clear by now - no I am objecting against your continuous disregard of what established science and experts (who don't sell anything!!!) have to say.
How can you inject doubt into matters you don't understand? I am not the one doing that.
 
Dec 2, 2018 at 10:45 AM Post #11,151 of 19,073
Errr... I beg to differ. I concur no one is going to vomit during ANY reasonable concert - even if the music is strictly synthesizer made.

I appreciate the agreeable sentiment, but I’m not sure I would go that far. I have definitely seen vomiting at reasonable concerts. :tophat:
 
Dec 2, 2018 at 11:09 AM Post #11,153 of 19,073
I am not objecting to you objecting to my lack of knowledge - I thought I'd made that perfectly clear by now - no I am objecting against your continuous disregard of what established science and experts (who don't sell anything!!!) have to say.
How can you inject doubt into matters you don't understand? I am not the one doing that.

How you can possibility evaluate the knowledge of others about a topic about which you yourself lack knowledge? Dunning-Kruger effect has blatantly popped up yet again: https://en.wikipedia.org/wiki/Dunning–Kruger_effect. You seem to be keen on firmly latching on to belief systems, and then finding other people to validate them and expunge any doubts. It reminds me of when I sometimes discuss religion with zealots (I generally avoid doing so), and when I challenge them to provide support for their beliefs, they get flustered and say go talk to some other person who can better answer my questions.
 
Dec 2, 2018 at 11:12 AM Post #11,154 of 19,073
How you can possibility evaluate the knowledge of others about a topic about which you yourself lack knowledge? Dunning-Kruger effect has blatantly popped up yet again: https://en.wikipedia.org/wiki/Dunning–Kruger_effect. You seem to be keen on firmly latching on to belief systems, and then finding other people to validate them and expunge any doubts. It reminds me of when I sometimes discuss religion with zealots (I generally avoid doing so), and when I challenge them to provide support for their beliefs, they get flustered and say go talk to some other person who can better answer my questions.

I’m with you on this but I’d keep religion out of it, however well the analogy might seem to hold.:)

On the other hand I’d be happy to run through a couple shots of whiskey and a six-pack and talk religion and philosophy with you all day. Maybe with a good football game on. :beerchug:
 
Dec 2, 2018 at 11:24 AM Post #11,155 of 19,073
I’m with you on this but I’d keep religion out of it, however well the analogy might seem to hold.:)

On the other hand I’d be happy to run through a couple shots of whiskey and a six-pack and talk religion and philosophy with you all day. Maybe with a good football game on. :beerchug:

Yes, only an analogy, which seems apt given that the human aspects of audio ideology so often resemble religious and philosophical ideology. As I've gotten older, I've generally gotten away from having religious and philosophical discussions, since they rarely move the ball forward for either party. Though the discussions can be fun if the participants aren't dogmatic and trying to defend a particular view (such people seem to be more the exception than the rule), and I've found applied philosophical discussions to be useful in my professional circles to help us understand our background assumptions, why we do what we do, appropriate goals, etc.
 
Dec 2, 2018 at 12:00 PM Post #11,156 of 19,073
Alrighty then. My apologies. You are of course right! The distinction though is that I don't portray myself as someone who knows how these things work. Can you say the same?
I'll go back to trusting the professional folk over the hypothetical theorists on offer here.
If I find something I don't like in their theories I will of course prove them wrong by conjuring up some clever what-if scenarios to support my case.
 
Dec 2, 2018 at 12:08 PM Post #11,157 of 19,073
This test adds a delay between the high-hat and kick drum. I was able to easily identify a 1 ms delay in the blind test, though I suspect there may be issues with the test itself that may be providing a tell.

1ms_delay.PNG


https://www.audiocheck.net/blindtests_timing_2w.php?time=1
 
Dec 2, 2018 at 12:16 PM Post #11,158 of 19,073
I tried to snip out only the parts I'm responding to here in the quote.... we'll see if it works out.

-------------

I personally would rather avoid ultraviolet light on my TV... although some few folks might opt for "ruthless accuracy".
(I'm sure that, on the Mars rover, they included cameras that detect both.)
I'm not sure about whether I would consider the warmth of long wave infrared which conveys "warm sunlight" to be a benefit or a drawback.
(Perhaps they could include a switch marked "popular" and "lab" on my next TV.)

--------------

Nobody said anything about "far above 100%".

Here's a link to the AES reprint of the Meyer and Moran study.... (testing "the audibility of a CD standard A/D/A loop in the signal chain")
https://pdfs.semanticscholar.org/1105/0b42c641807bbcf24ba7f6e11af49f135e8f.pdf

If you look at the top right - on page 777

The TOTAL number of correct responses was 246/467 - which is reasonably close to random.
This is well within results that could be explained by random chance - with a slight random variation.
So they quite correctly reported that "the total result did not indicate that a statistically significant number of people could hear a difference".

HOWEVER, they also reported that "the best listener score, achieved only once" was 8/10, and "two other results were 7/10.
The results FOR THOSE INDIVIDUALS - AND THOSE RUNS - TAKEN INDIVIDUALLY are well outside what you would expect from random chance.
Now, if you understand statistics, you understand that there is in fact a certain probability that, by pure random chace, you may get a few anomalous results.
(It's not impossible that, out of that many subjects and runs, those three were simply "lucky that day", and simply guessed with far better than random accuracy that one time.)
HOWEVER, it's also POSSIBLE that those three subjects, under the exact conditions found in those three test runs, really were exceptionally accurate.

Since Meyer and Moran were looking for a statistical result about "whether humans in general would notice a difference" they stopped there.
That result is certainly "suggestive enough to justify follow-up on those three test subjects" - at least if you're really looking for a limit rather than an average.

-------------------

Nobody said anything about "studio microphones currently in use".
Bats obviously DO use ultrasonics to navigate - and they seemingly are able to do so at ranges far exceeding "a few inches".
And the the company I linked clearly DOES produce both microphones and speakers whose response extends above 100 kHz.
Therefore, whether you purchase any for your studio or not, they would be adequate for testing purposes.

-------------------

Perhaps the reason "nobody has made a recording that sounds exactly like the real thing" is that they were all made using microphones...
Limited to the range of frequencies that IT WAS POPULARLY BELIEVED was the limit of human hearing...
Probably not... but maybe...

.............................

That's brings us back full circle to what I suggested many pages ago in response to similar nonsense: How about ultraviolet TV, so we could get a suntan while watching Baywatch? I'm sure there are loads of audiophiles who want the "real experience" of melanoma from watching their TV?

1. Really? ... How do you achieve "far above" 100%? You seem unaware of the fact that even a perfect 100% score can in fact be "pure chance" as entirely predicted by and consistent with statistics and does NOT indicate "people could hear a difference". So "in fact" yet another of your assertions is FALSE.

2. So you've got absolutely no evidence to support your assertion that "participants were in fact able to tell which is which" ... how surprising!

3. Despite you stating no one should use absolutes we've had an "in fact" absolute assertion form you and now a "point blank" absolute assertion. I can only assume you believe that "no one" doesn't include you? And, if it's not bad enough that you're doing the exact opposite of what you advised others, your absolute assertions are in fact FALSE anyway! Jeez, round and round we go.



1. Correct, it's "not difficult", in practise it's impossible, unless of course one wanted to get laughed at and fired.
2. And many instruments do not. AND, even those that do only produce it in tiny amounts and can only be recorded at extremely close range. Do you typically sit with your ears just an inch from a snare drum? If so, what make of hearing aids do you now have to use or do you just rely on lip-reading?
3. No there aren't, there's very few music mics whose response extend that high.
4. No there aren't, there's not a single music mic that gets anywhere near that high.
4a. You seem to have inadvertently missed the fact this is a mic designed for "Investigating Animal Acoustic Communication", NOT for recording music! You seem to consistently and continually "inadvertently miss" a great deal and what are the odds that all these "inadvertent" mistakes ALWAYS seem to support your agenda? Maybe that's why you like using astronomical analogies?

As you like astronomical analogies: We can propel a space craft to well over 17,000mph with solid fuel rockets, therefore all cars can travel at over 17,000mph. Are there ANY cars that can travel at over 17,000mph? Is this not a ridiculous and fallacious assertion? Even though it's entirely possible to achieve, there are no solid fuel rocket powered consumer cars because it's so highly undesirable in practice .... but why let that fact get in the way of a perfectly good bunch of nonsense?



Then why do you do it? Why, when you're clearly lacking basic knowledge, do you employ your dogmatic, adversarial, counterproductive and self-contradictory attitude and ignore your own advice to learn from experts? And why do you ignore every question which points this out? What is the only logical conclusion from this attitude?



Sure, the inverse square law isn't a law, it "TOTALLY" doesn't even exist. High freq air absorption also doesn't exist, it was just invented by people who hate vinyl. Thermal noise increasing with frequency is just another Nyquist lie and the proven math is all wrong AND, all the audience always sits "no more than a few feet away from" say a drumkit at a live gig or an orchestra.



Yep, that's not going to work here. I've already tried it, I've even given the facts and figures. They care only about their agenda, of re-stating ad infinitum what they believe might be possible and what has not been proven to be impossible, completely disregarding any of the actual realities or practicalities of how recordings are actually made or even that what they assert as possible would in practice cause hearing damage if they tried it, which they won't anyway. They'll go to extreme lengths and employ the most ridiculous of analogies and falsehoods. Arguing for example that it's entirely possible to send a man to a star 4 light YEARS away, when the best we've actually managed so far is about one and a half light SECONDS! Honestly, you're wasting your time providing recording realities/practicalities, they'll just ignore you and invent recording scenarios which NEVER exist to "prove"/support their agenda.



Who do YOU think "knows more about what's really audible" with say a piano recording?
- an audiologist
- a neuro-physiologist who specialises in human hearing
- a concert pianist
- a recording engineer
- an audiophile
- a salesman selling snake oil to audiophiles

The first four are all in general agreement, based on both the science and the factual, practical realities of performing and recording music. The last two however ....

G
 
Dec 2, 2018 at 12:18 PM Post #11,159 of 19,073
Alrighty then. My apologies. You are of course right! The distinction though is that I don't portray myself as someone who knows how these things work. Can you say the same?
I'll go back to trusting the professional folk over the hypothetical theorists on offer here.
If I find something I don't like in their theories I will of course prove them wrong by conjuring up some clever what-if scenarios to support my case.

Respectfully, by your own admission, it doesn't seem that you're qualified to enter into the debates and express opinions on the various hypotheses.

Yes, I can say the same - there's a lot I don't know about this stuff, and in fact no one will "know" it until proper research is done. I'm ok with saying "I don't know" about these things. That doesn't mean I don't have hypotheses and varying levels of confidence in them, but I leave room for doubt.

The problem is that some people around here leave essentially no room for doubt, and express "certainty" without being able to back up that certainty with proper null tests, blind tests, etc. Don't make the mistake of thinking that amateurishly done testing is a substitute for proper rigorous testing, especially when you're looking for possible subtle differences. The smaller the difference you're trying to detect, the more rigor you generally need to detect it. You can't just do small-scale or non-rigorous testing and then conclusively declare that no difference exists, despite using too crude an instrument to find it.

Here's a simple example. Say you have a coin which is actually physically biased to produce 51% heads and 49% tails. How many coin flips will you need to confidently determine that the coin isn't or is 50/50 unbiased, and how many flips will you need to accurately determine the amount of bias of the coin? If you have no idea of how to approach those questions quantitatively, you should question how useful your own testing is. Again, if the coin was actually biased 80/20, you don't need too many flips to have some confidence that the coin is quite biased, without even having to run stats. But if we're talking about a small bias like 51/49, suffice it say that you'll need to do A LOT of flips and will need to run some stats to put probabilities on things.
 
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Dec 2, 2018 at 12:41 PM Post #11,160 of 19,073
Respectfully, by your own admission, it doesn't seem that you're qualified to enter into the debates and express opinions on the various hypotheses.

Yes, I can say the same - there's a lot I don't know about this stuff, and in fact no one will "know" it until proper research is done. I'm ok with saying "I don't know" about these things. That doesn't mean I don't have hypotheses and varying levels of confidence in them, but I leave room for doubt.

The problem is that some people around here leave essentially no room for doubt, and express "certainty" without being able to back up that certainty with proper null tests, blind tests, etc. Don't make the mistake of thinking that amateurishly done testing is a substitute for proper rigorous testing, especially when you're looking for possible subtle differences. The smaller the difference you're trying to detect, the more rigor you generally need to detect it. You can't just do small-scale or non-rigorous testing and then conclusively declare that no difference exists, despite using too crude an instrument to find it.

Here's a simple example. Say you have a coin which is actually physically biased to produce 51% heads and 49% tails. How many coin flips will you need to confidently determine that the coin isn't or is 50/50 unbiased, and how many flips will you need to accurately determine the amount of bias of the coin? If you have no idea of how to approach those questions quantitatively, you should question how useful your own testing is. Again, if the coin was actually biased 80/20, you don't need too many flips to have some confidence that the coin is quite biased, without even having to run stats. But if we're talking about a small bias like 51/49, suffice it say that you'll need to do A LOT of flips and will need to run some stats to put probabilities on things.
Thanks I had no idea. Wow it's as if the enlightenment is bubbling up through my listening aura so much so that I now can pick up variations between dacs and amplifiers in a jiffy.
 

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