"champ04" interesting thoughts on speedskating. Having seen most of the Long & Short track Wold Class skaters race (and having been on the ice with some of them when they were younger) you have nailed an important factor in competition.
Now about DBT's. Why do DBT's work well in many other areas of Audio and Acoustics yet the have so many problems in this discussion? DBT's work with audio compression formats and are sensitive to very small JND tests.
Now about DBT's. Why do DBT's work well in many other areas of Audio and Acoustics yet the have so many problems in this discussion? DBT's work with audio compression formats and are sensitive to very small JND tests.
You didn't address the questions, so let me respectfully and politely ask once moreYes,but that doesn't give Jakob2 and Jon Risch any right to call anyone who did an honest effort(better than nothing here so far),like me or my friends any names.Jakob2's position is clear on this I think,see a few posts earlier.
Politeness has never harmed anyone
.Are blind tests (SBT/DBT) the valid methods for determining (subtle) audio differences (as opposed to dreamy, uncontrolled "listening")?
If they are, must they be conducted robustly, by experts like Jakob2/Jon Risch, who know all the pitfalls of the sloppy testing?
cheers,
AJ
btw, no one questioned your honestly, just the robustness of methods and awareness of pitfalls via expereience
And just what were the "expected" results? The listener did not know what the correct ("expected") answer was.
Because they don't support the validity of beliefs, just the effects of plain 'ol sound waves.
Wow, no land line, cell phone or VOI? How do you verbally communicate with those not in proximity?
I think you already admitted that you yourself are a "hear-nothing". Just have to level match and no peeking.
Do you call this "peeking" in the states
To reply your question,as long as there is no switching box and extra cables involved,and cables are swapped manually I have no problem to test myself blindly,as I did a few times so far.I don't know if this type of test is the only valid way though.It just seems ok to me and the easiest for us to do here.What I can say though,is that I needed more effort to tell which was which than when I do this sighted.Also,even in sighted tests,my expectations(when I have any) are not always met.I always try not to have any expectations when I test things in my system.In fact if I have any,it is mostly in favor of the things I already have
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I am really a 'hear-less' than a 'hear-nothing' It is caused by old age and loud music (you can't work on the stage with the Grateful Dead, and not subject yourself to potential hearing damage). However, at 24 years old, I had great hearing, and I'm sure there are others, in that same age range. The rest is interest and ability to hear differences in musical instruments and hi fi systems. They are the ideal test subjects.
What's that?
My result with terratec 24/192 soundcard and small creative PC speakers (1" driver):
Attachments
Well I'm 29 but I got out of live sound only after a couple of shows. And I used earplugs after the first night of abuse - I know I'm a "nerd". So I do think I would be a decent subject. I still have that cockiness that if there is in fact something to be heard I should be able to spot it.
Implementation. I've droned on before about the differences between the typical audiophile ABX/DBT and the acoustic test protocols I saw at a professional acoustic lab. Like I wrote earlier, I have never, and I mean never, seen an account of a DBT that returned a null result criticized by a 'testie'.
Such a strong belief system automatically raises my suspicions.
I'm baffled that both 'dishonest' and honest manufacturers don't automatically gravitate to that one colour preferred above all others.
Nonsense. YOU are starting from the position that psychology can explain everything and therefor it is only you who is specifically concerned with the psychological component of hearing.
We know from physiology that when a body is exposed to a stress of any type (this includes any expectation of performance) that components in the body, specifically but not limited to musculature, tend to become more rigid.
The tautness of the eardrum is controlled by tiny muscles, is it not? (it is)
Any increased tension of this muscle would cause the dynamic range of the listener to decrease. This could logically explain the decreased perception of the subtleties in the music.
No, its not proof. Its just one plausible explanation of whats going on. And it has nothing to do with psychology.(other than the psychological impact of performance expectation) It is certainly reason enough for further inquisition which has been my central point from the beginning.
A reverse of this situation, though completely anecdotal, would be what elite athletes describe experiencing when achieving "Flow". Flow is the term used to describe that rare occasion when everything comes together and an ultimate performance is achieved and is itself a completely unique line of study.
In these situations athletes often report an extremely heightened level of perception. Such as being able to hear only the voice of their coach amidst the ruckus of the crowd, as just one example.
What is consistent in the reporting is this heightened perception along with an overwhelming sense of ease and control. Ie. zero tension or stress.
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Like I wrote earlier, I have never, and I mean never, seen an account of a DBT that returned a null result criticized by a 'testie'.
Oh, even that happens once in a while; in nearly all cases i remember the critic was dropped if it doesn´t came handy anymore in a discussion. I´d guess it depends on the definitions of the term "objectivist" in use.
Wishes
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