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#1
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http://en.wikipedia.org/wiki/High_fidelity
"Ascertaining high-fidelity: the double-blind tests "Attempted improvements in hardware (equipment like microphones, loudspeakers, etc.) should really be tested by "double-blind (D-B)" listening comparisons, before they are offered for sale. If this is not done, it is unfortunately too easy for "power of suggestion" to convince people that the new thing is audibly better. "Many new developments in this field are measurably better, for example the ability to reproduce frequencies above 30 kHz, but nobody can hear the difference, so they are not audibly better. It is sometimes easy to convince yourself that a new thing sounds different, but a double-blind test prevents anyone from identifying which equipment is new versus old. The D-B test involves hiding both the old and new equipment from view, and taking notes on which one the listener thinks sounds better, with all notes written in code. That could be a single-blind test, but if even the person operating the switch does not know which is new or old, then it is double-blind. After the test is completed, the notes are decoded. "This kind of testing is has been required in the approval of new medicines since about 1960. However, the D-B audio listening test was first described by Dan Shanefield, in November of 1974, in the newsletter of the Boston Audio Society. This was later reported to the general public in High Fidelity Magazine, March 1980. The D-B listening comparison is now a standard procedure with most audio professionals. (It should be mentioned that a few manufacturers of very expensive audio equipment still dispute the need for this test.) A commonly used improvement of this test is the ABX listening comparison. This involves comparing two known audio sources (A and B) with either one of those when it has been randomly selected (X). The test, and its associated equipment, was developed by the Southeastern Michigan Woofer and Tweeter Marching Society ("SMWTMS"), a semi-pro, semi-amateur organization in Detroit, which is very active in the double-blind testing of new audio components. |
#2
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In article ,
"Arny Krueger" wrote: http://en.wikipedia.org/wiki/High_fidelity Congratulations! Which one of your friends submitted it? Stephen |
#3
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"MINe 109" wrote in message
In article , "Arny Krueger" wrote: http://en.wikipedia.org/wiki/High_fidelity Congratulations! Which one of your friends submitted it? One of many, I'm sure. But I don't know which one. |
#4
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MINe 109 said:
http://en.wikipedia.org/wiki/High_fidelity Congratulations! Which one of your friends submitted it? Anyone can submit anything to a wiki. There's no editing, no proofreading and no peer-review involved. BTW did you notice the thread title? Is that a new kind of disease? ;-) -- Sander de Waal " SOA of a KT88? Sufficient. " |
#5
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![]() Arny Krueger" wrote in message http://en.wikipedia.org/wiki/High_fidelity "Ascertaining high-fidelity: the double-blind tests "Attempted improvements in hardware (equipment like microphones, loudspeakers, etc.) should really be tested by "double-blind (D-B)" listening comparisons, before they are offered for sale. If this is not done, it is unfortunately too easy for "power of suggestion" to convince people that the new thing is audibly better. "Many new developments in this field are measurably better, for example the ability to reproduce frequencies above 30 kHz, but nobody can hear the difference, so they are not audibly better. It is sometimes easy to convince yourself that a new thing sounds different, but a double-blind test prevents anyone from identifying which equipment is new versus old. The D-B test involves hiding both the old and new equipment from view, and taking notes on which one the listener thinks sounds better, with all notes written in code. That could be a single-blind test, but if even the person operating the switch does not know which is new or old, then it is double-blind. After the test is completed, the notes are decoded. "This kind of testing is has been required in the approval of new medicines since about 1960. However, the D-B audio listening test was first described by Dan Shanefield, in November of 1974, in the newsletter of the Boston Audio Society. This was later reported to the general public in High Fidelity Magazine, March 1980. The D-B listening comparison is now a standard procedure with most audio professionals. (It should be mentioned that a few manufacturers of very expensive audio equipment still dispute the need for this test.) A commonly used improvement of this test is the ABX listening comparison. This involves comparing two known audio sources (A and B) with either one of those when it has been randomly selected (X). The test, and its associated equipment, was developed by the Southeastern Michigan Woofer and Tweeter Marching Society ("SMWTMS"), a semi-pro, semi-amateur organization in Detroit, which is very active in the double-blind testing of new audio components. Hey Kroo****, these are all a bunch a quotes to do what ? Say something that that comes directly out of your mouth. Hopefully something intersting to work with. Or get the **** of this thread you ****in pedophile. Or go see Mommie Bath and suck his dick inside his dress and maybe he let you post this garbage over there. |