原文：http://seanolive.blogspot.com/2009/04/dishonesty-of-sighted-audio-product.html这是1994年的实验。
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A total of 40 Harman employees participated in these tests, giving preference ratings to four loudspeakers that covered a wide range of size and price. The test was conducted under both sighted and blind conditions using four different music selections. , G/ [* ]+ P; G4 R, f: ^) ~
The mean loudspeaker ratings and 95% confidence intervals are plotted inFigure 1 for both sighted and blind tests. The sighted tests produced a significant increase in preference ratings for the larger, more expensive loudspeakers G and D. (note: G and D were identical loudspeakers except with different cross-overs, voiced ostensibly for differences in German and Northern European tastes, respectively. The negligible perceptual differences between loudspeakers G and D found in this test resulted in the creation of a single loudspeaker SKU for all of Europe, and the demise of an engineer who specialized in the lost art of German speaker voicing). 9 K! J {0 e* ~, O4 u* I" ~
( @, V& Y' i d# `( wBrand biases and employee loyalty to Harman products were also a factor in the sighted tests, since three of the four products (G,D, and S) were Harman branded. Loudspeaker T was a large, expensive ($3.6k) competitor's speaker that had received critical acclaim in the audiophile press for its sound quality. However, not even Harman brand loyalty could overpower listeners' prejudices associated with the relatively small size, low price, and plastic materials of loudspeaker S; in the sighted test, it was less preferred to Loudspeaker T, in contrast to the blind test where it was slightly preferred over loudspeaker T.6 y* t5 q! N5 D
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非盲听时很多人认为音箱G和D更好（G和D的区别是做出了不同的cross-overs为了体现所谓的德国味和北欧味，结果没人听出它们的差别），品牌忠诚也影响了非盲听时的结果，GD完胜对手牌子的3.6k箱子T，但是低端箱S则不受品牌影响，被认为不如T箱。盲听时对4个箱子的感觉则完全不同，基本处在同一水准。8 u$ I+ }) y% r
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E3 C1 R2 |0 H0 k* zLoudspeaker positional effects were also a factor since these tests were conducted prior to the construction of the Multichannel Listening Lab with its automated speaker shuffler. The positional effects on loudspeaker preference rating are plotted in Figure 2 for both blind and sighted tests. The positional effects on preference are clearly visible in the blind tests, yet, the effects are almost completely absent in the sighted tests where the visual biases and cognitive factors dominated listeners' judgment of the auditory stimuli. Listeners were also less responsive to loudspeaker-program effects in the sighted tests as compared to the blind test conditions. Finally, the tests found that experienced and inexperienced listeners (both male and female) tended to prefer the same loudspeakers, which has been confirmed in a more recent, larger study. The experienced listeners were simply more consistent in their responses. As it turned out, the experienced listeners were no more or no less immune to the effects of visual biases than inexperienced listeners.
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摆位影响则相反，盲听时两个位置的听感显然有差别，而非盲听时听感差别消失。& e; o5 ^; D0 a+ d q
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4 [) k0 d2 K$ W' ?“Audio as a hobby is dying, largely by its own hand. As far as the real world is concerned, high-end audio lost its credibility during the 1980s, when it flatly refused to submit to the kind of basic honesty controls (double-blind testing, for example) that had legitimized every other serious scientific endeavor since Pascal. [This refusal] is a source of endless derisive amusement among rational people and of perpetual embarrassment for me..”" C, i( Y/ r3 {6 x
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