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The usual ASSumption

Implicit in your response is the usual assumption: that DBT's have no other flaws, and that just because they are blind, that the TRVTH must be there in the results.

The FACT is, that blind tests ARE stressful, they ARE different than listening for pleasure or enjoyment, and not all of them remove expectation bias (without the proper controls and reference source), which again, points to the same basic inability to realize that just because a listening test is DBT, that it still can have other flaws.

The ONLY thing that a properly set up and executed DBT does is remove prior knowledge of the identity of a DUT during a forced choice section.
You really can not say that a DBT will result in anything else, because all those other things depend on OTHER factors, not the mere fact that the test is being conducted blind (double-blind).

How can I say these things!?!?! Horrors!

Well, I can say them because I have been a listening subject, an administrator, an experimental designer, and yet again and again, a listening subject. I know from first hand experience just HOW difficult doing a real listening test is, and how difficult it can be to hear subtle differences. I have also done some homework, and read about the subject, as well as

If, when you say DBT, you REALLY mean something else, something that is NOT representative of the kinds of test often cited and touted by naysayers as 'evidence' of the lack of sonic differences for ___________ (insert audio component here), you know, those crummy ABX test done years ago, then you really should precisely define what it is you are talking about, rather than just trying to steam-roller with "24 years of DBT's having found no differences.....blah, blah, blah".


Jon Risch

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