Quote:
Originally Posted by zeroibis /img/forum/go_quote.gif
To get back on track is not the current debate over the validity of DBT when applied to a subjective source. I will have to look some stuff up to see if artistic quality in any forum has ever been subjected to DBT for cross reference purposes. However I believe that at this point we should ask our selves a few quick questions (I will insert my personal answers).
1. Is what we are attempting to judge subjective (yes)
|
Agreed so far.
Quote:
Originally Posted by zeroibis /img/forum/go_quote.gif
2. Do and can DBT apply to something that is subjective (probably not)
|
Here's where I don't disagree. DBT is used all the time for subjective experience, namely (see below) in pain medication. Pain is probably the most elusive of qualia that humans can experience and discuss, and it's likely THE most subjective experience that we feel in our existence (you can describe to someone in rudimentary terms how some tonal qualities sound, such as warm, bright, rolled-off, etc. but how can you describe to someone what pain feels like without referencing some other painful experience?), and yet DBT works perfectly well and is an industry standard.
Quote:
Originally Posted by zeroibis /img/forum/go_quote.gif
3. What can cause the above problem and can that be corrected (Well this is likely due to people being different from one another, therefore because two individuals are not likely to be the exact same they are not likely to have the exact same reaction to the same thing especially if the given thing is subjective in nature)
I would like to point out that at the current level of this debate the real question is of a more psychological nature.
Also I am tired and going to bed, also Red Wings kicked ass!
|
I think the major disputes for DBT is that it's stressful and there's not enough time to test, but the DBT protocol says nothing about either of those disputes. There's no reason why the test can't be taken over months (or years if you feel especially determined or batty). The most frequently cited "perfect" (sighted) way to determine differences is to listen to a system for a long time, and then switch out a cable, and then listen for some more time, noting differences.
But here's my question: why can't one do all of the following, same equipment, same time, same listening room, but instead of you switching out the cable, you have a neutral person switch them out in a random order? Do this 10 times, see the results, and you have a DBT (so long as volumes are matched, etc).
About individuals being different from each other, I agree, which is why I'll take just ONE properly conducted DBT that turns up a statistically significant positive result. If someone can show me just ONE individual who can reliably tell the differences between cables, then I (and I think all of the skeptics) would claim that cables can and do make a difference to at least some people. You're right, in that no number of negative DBTs can show definitive proof - but given how many DBTs have failed, and how not a single proven DBT has ever shown up (because let's face it, if such a thing existed it would be circulated among head-fi, as well as the audiophile community at large, with excitement and fervor), I'm going to hedge my bets and go with the slightly inconclusive proof than the other side which has no proof at all.
Quote:
Originally Posted by zeroibis /img/forum/go_quote.gif
Experience should generally be preferred over theory regardless of how good the reasoning is. See: problems with early Greek logic when applied to reasoning.
|
I don't think many people will disagree with you on this - the real question (that I think many people are ignoring) is: what experience is of value, and what experience is not?
There's a reason why pharmaceutical companies test against a placebo - it's because someone with "experience" that solely consists of them having a headache, taking a pill, and feeling better, is totally useless experience. We can't glean any useful information from that experience because we don't know if the action of taking the pill caused a difference, or if the active ingredient of the pill was the causal factor. Without that knowledge, we can't say that tylenol is effective at reducing pain - we need to control for the placebo effect and test in an experimental setting, where nobody knows whether or not they're taking a placebo or acetaminophen, and see what the result of the pill is above and beyond the placebo effect. If there's no statistical significance, then acetaminophen makes no difference in the subjective realm of pain reduction.
Applying that analogy to the current debate, doing sighted tests are useless because we have no way of distinguishing whether or not any claimed differences are due to the cables, or merely some psychological bias stemming from the cable purchase. And so, analogously, if under properly controlled testing circumstances, there's no statistically significant improvement, then the cables make no difference in the subjective realm of audio.