Mothra,
Appreciate the intelligent response, specifically the example of turning up the jitter effect and then returning it to its normal level. These discussions need more elucidation of that sort, and less ad hominem.
While we must consider whether or not the listener knows what he's listening for, I wouldn't say that the phenomenon you describe undermines the credibility of double-blind tests, but rather more clearly defines what they actually achieve. In other words, DBT's never proved that amps sound alike, but only proved that the test's participants couldn't readily identify the difference.
I guess we should always qualify the question of audible difference in terms of whose ear(s) we're considering. The general public wouldn't be expected to differentiate between cables, but those individuals who CLAIM they can tell the difference (like those in your example who've already heard the jitter turned up) should have little trouble discerning reliably in a blind test.
Appreciate the intelligent response, specifically the example of turning up the jitter effect and then returning it to its normal level. These discussions need more elucidation of that sort, and less ad hominem.
While we must consider whether or not the listener knows what he's listening for, I wouldn't say that the phenomenon you describe undermines the credibility of double-blind tests, but rather more clearly defines what they actually achieve. In other words, DBT's never proved that amps sound alike, but only proved that the test's participants couldn't readily identify the difference.
I guess we should always qualify the question of audible difference in terms of whose ear(s) we're considering. The general public wouldn't be expected to differentiate between cables, but those individuals who CLAIM they can tell the difference (like those in your example who've already heard the jitter turned up) should have little trouble discerning reliably in a blind test.