maverickronin
Headphoneus Supremus
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Well I don't know of a better method, but I know that ABX is expected to miss a certain amount of audible difference because the two different sounds are not "side by side" in a literal sense. You have to present first one and then another, so it becomes like a test of memory. Imagine if we did the same thing with swatches of color. I bet there are numerous pairs of color swatches from the paint store that you "couldn't tell apart" if I showed them to you in the manner of an ABX test - first one and then the other. But you can sure tell the difference when you see them both, and they do have to be butted up against each other as well. Even a few inches of separation and you can lose the ability to distinguish them even while seeing them both at the same time.
I'm thinking about a method for sound comparison that has more of this side-by-side juxtaposition. I'm thinking about trying the change from one sound to the other in the middle of the sound, or maybe changing back and forth several times, but in a way that doesn't cause hard cuts or clicking noises obviously. A colleague of mine has developed a technique for "sound morphing" by which one sound can be transformed into another smoothly, so that might be applicable to this problem. He once changed a cello note smoothly into a cat's meow, that was interesting.
The color swatch analogy breaks down because it's easy to see two things side by side but it's impossible to hear two thing side by side. You can only hear two things at once. The sound morphing idea might be good improvement to the standard fast switch ABX test though.
The other thing you seem to be missing is the specific context in which ABX tests are usually talked about on here. It's to determine if a difference which someone already claims to hear is real or not. It's not just giving a random person 2 samples and asking them to discriminate between them with no other background about what they should be listening for. I wouldn't expect that to go too well either. The context in these circles is something like this.
Audiophile A listens to both $5000 MegaAmp X and $200 CheapoAmp Y sighted. He declares MegaAmp X to be "obviously" superior with "night and day" differences even though they measure identically down to -80, -90, -100db or something similar. Skeptic B arranges an ABX test in which Audiophile A fails to distinguish the "obvious" differences which he previously "heard" when listening sighted. Audiophile A blames switchboxes for making everything sound the same and Skeptic B concludes that no difference between MegaAmp X and CheapoAmp Y have been demonstrated.
Is there something wrong with using ABX testing in this way?