Funniest snake oil theories

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Let's take this example to explicit two kind of claims that can be made.



Someone exchange a toroidal transformer for an E-Core in his DAC. He listens to it and judges that it sounds better. Should that claim be dismissed ? Not quite. There are reasons why it could be so in a particular case, depending on the implementation of his DAC: noise from the mains being more or less filtered, pattern of magnetic fields, etc. There's no certainty but at least it's possible.



Now someone paints three little white dots on the enclosure of his DAC. He judges that the sound is much better. No further comment is needed.



In the first case, we can honestly answer "maybe you hear something". The "maybe" expresses some likeliness.

In the second case, to say "maybe you hear something" would be pure politeness and the likeliness would tend towards 0. It would be dishonest to not mention it.

Generally I take a different approach. I don’t do comparisons, but rather I ask the reviewer tell me what kind of problems can be described, let him choose his own music and just listen. As Douglas Self mentions, we want to strive for a faultless system.
 
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Not really, I am asking them whether they can find any problems. It is more like a normal design review process. Normally they are reviewing in their own listening environment. Certainly I hope no problems can be identified. But normally when anyone does find something, we will go through a very specific music passage to explain what they hear.
 
I should clarify. Many here have thrown out double blind ABX testing as the necessary mechanism to prove effectiveness. In order to be valid (remember, the call for ABX was to provide a valid analysis), it would have to be BIG, and NO, you can't do this casually in your living room in order to be valid. And if it's not valid, what's the point? It's no different than anyone here saying they hear a difference without ABX/double blind.

Carlp, not the point. Many on this thread develop amps, speakers, interconnects, what have you. Others tweek. What is the point is that with all these activities, developers and tweekers need to apply a certain discipline in their decision process, that is, to evaluate changes without peeking. This is not always easily done, but it is the only way to be sure that one is not fooling him-or sometimes even herself.
 
But then, soongsc is only interested in the purely subjective

And he influences that subjective impression by asking suggestive questions. Measuring the objective needs training and experience and only in a few cases is a s straigtforward as "put a probe there" and subjective testing isn't easier by any means. Of course we are circling to no end mentioning accepted and expected scientific methology for interviewing test subjects....
 
Max Headroom said:
I am not say that standard level physics is wrong, but I am saying that Maxwell is not sufficient to describe energy transmission and transduction at the deeper level
Two statements in one sentence:
1. physics is not wrong
2. physics is wrong
Which one do you actually mean? What is this "deeper level" you have invented?

There is no reason to suppose that Maxwell's equations are wrong, in the usual area of applicability. Of course, we know that we have to use QED etc. where quantum effects are important and something else will be needed where gravity is strong, but audio systems are well within the domain of applicability of Maxwellian EM. People suggesting otherwise are merely flagging up their lack of understanding of physics.
 
You're willing to spend many 10s of thousands of dollars on this?

I should clarify. Many here have thrown out double blind ABX testing as the necessary mechanism to prove effectiveness. In order to be valid (remember, the call for ABX was to provide a valid analysis), it would have to be BIG, and NO, you can't do this casually in your living room in order to be valid. And if it's not valid, what's the point? It's no different than anyone here saying they hear a difference without ABX/double blind.

But take it one step further to study whether ANYONE can hear a small difference and in my experience and education, that becomes a much bigger study still. I haven't thought this through fully but I'm suspecting thousands of subjects and each with enough repetitions (degrees of freedom) to be valid.
Spoken like someone who's never done audio DBT. It doesn't cost 10s of thousands of dollars and it can be done in living room in order to be valid.
 
Carlp, not the point. Many on this thread develop amps, speakers, interconnects, what have you. Others tweek. What is the point is that with all these activities, developers and tweekers need to apply a certain discipline in their decision process, that is, to evaluate changes without peeking. This is not always easily done, but it is the only way to be sure that one is not fooling him-or sometimes even herself.

I was responding to the constant call by others for scientific ABX testing, which IS, in fact, VERY expensive if you want defensibly valid results. I mean, people who are calling for a scientific approach to snake oil proponents can't then say, well, we don't need a scientifically valid ABX approach.

But I agree with your general point. If I were spending good money on gear I'd certainly want to evaluate it objectively. And, FWIW, I personally don't think a rigorous ABX is needed.
 
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