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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Re: This is exactly right...and wrong posted by Jim Austin on December 26, 2005 at 07:13:43:
The debate here seems to be about whether DBTs for audio components can be designed to give useful null results. Clearly, selection of the test program material must include relevant technical attributes: one would not test subwoofers with piccolo solos.Another of the factors that affects the sensitivity of the test is the attitude of the subjects. Here is where cultural bias may be important. I recall once reading that in WWII the British used bagpipe music to soften up German prisoners-of-war before questioning them. There are reports of use of similar use of rap music on prisoners in the present conflicts in Iraq and Afghanistan. Music that annoys subjects in the test group could interfere with attention to sonic differences.
On the other side of of the attitude question, use of stirring or sentimental music, for subjects in the test group, may also interfere with their attention. In either case, the sensitivity of the test for those affected subjects might be reduced.
I don't know how one accounts for this effect with a test group comprised of volunteers with limited time and endurance.
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Follow Ups
- Other factors, including cultural bias regarding the music... - Al Sekela 11:32:36 12/26/05 (1)
- Whoa there! - Silver Eared John 22:48:24 12/26/05 (0)
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