Good work carried out by Toole and others aside:Are there good measurement methods available that can prove that the spatial characteristics of two audio events will be indistinguishable in a blind test?
I think that measuring the behaviour of loudspeakers in a room (or microphones) in a perceptually meaningful manner is quite hard.
It is easy to find _some_ difference, it is hard to tag the relevant differences while discarding the irrelevant differences.
People tends to move their heads, and HRTFs can vary quite a bit from person to person.
Sticking a single omni B&K microphone at "sweet spot" does not tell us all there is to know about a loudspeaker/room system.
Toole advocates empirical weighting of on-axis/off-axis loudspeaker measurements done in anechoic chambers, together with physical analysis of room geometry, but I dont think that approach is necessarily "perfect"?
Quote from: Nessuno on 31 December, 2012, 12:41:32 PMif perception really varied from moment to moment, we could as well argue that one day an individual could positively pass an ABX test and the other day failWhich is exactly why a failed ABX test proves nothing.
if perception really varied from moment to moment, we could as well argue that one day an individual could positively pass an ABX test and the other day fail