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Test your ears in my new ABX test
Test your ears in my new ABX test
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View Poll Results: Have you been able to discern the files in an ABX test?
Yes, I was able to discern the files and have positive result 3 20.00%
No, I was not able to discern the files in an ABX test 12 80.00%
Voters: 15. You may not vote on this poll

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Old 2nd November 2017, 08:39 AM   #21
Mooly is offline Mooly  United Kingdom
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Test your ears in my new ABX test
Ho hum.
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Old 2nd November 2017, 09:00 AM   #22
PMA is offline PMA  Europe
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Test your ears in my new ABX test
Thank you for trying the files, Karl!
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Old 2nd November 2017, 01:21 PM   #23
Mooly is offline Mooly  United Kingdom
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Test your ears in my new ABX test
Different approach. I'm using my main system and feeding the line out of the PC into my main amp, no headphones this time. Flat response, playback level 'moderate' to 'low moderate'. Concentration level... ultra intense

(I've just had a beer and its all gone to pieces I'll try again later)
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Old 2nd November 2017, 02:05 PM   #24
Pano is offline Pano  United States
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Test your ears in my new ABX test
Interesting results! I was listening with headphones, now wonder if that's a mistake.
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Old 2nd November 2017, 02:34 PM   #25
Mooly is offline Mooly  United Kingdom
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Test your ears in my new ABX test
Only one way to find out I was listening to the percussion that had a right channel bias around 48 seconds in.

Did another run after having eaten. A bit tenuous maybe.

I'd like to say that there is one of the two that seems to have more life and better timbre in the HF and yet saying that of course begs the question why I can't get it right every time. I think the concentration needed is an absolute killer, as soon as you even move a fraction, what you thought you heard is changed.

I can say which of the two I prefer if Pavel wishes.
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Old 2nd November 2017, 02:39 PM   #26
Dave Zan is offline Dave Zan  Australia
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Quote:
Originally Posted by PMA View Post
the "probability" number is calculated by the abx software and there is no way how to affect it. It depends on the order and number of successful and unsuccessful attempts...
Yes, this is what I expected, but the values look very...suspect, to be polite.
The ABX creator may know software but seems not to understand statistical inference.
I think you are correct to use only the test numbers.

Best wishes
David
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Old 2nd November 2017, 02:59 PM   #27
Dave Zan is offline Dave Zan  Australia
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Originally Posted by Mooly View Post
I've just had a beer and its all gone to pieces
Does that mean that you had a few runs with less correct picks, and you didn't show them?
Obvious sample bias in that case.
Just find an excuse to leave out all the cases with less than 50%
"Oh, I won't count that one, I messed it up"
"I didn't concentrate hard that time"
And so on.
Not that you would do that, but it's remarkable how many people don't understand statistics.
Or even realize that if one cherry-picks results then they are worthless.
A bit of a problem for Pavel since the results here are self reported.
Always a risk that someone will do a few trials until they hit an impressive score, not too hard even if only luck, and then post the screen shot of that trial "Look, I can hear the difference easily"

Best wishes
David

Last edited by Dave Zan; 2nd November 2017 at 03:07 PM.
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Old 2nd November 2017, 03:12 PM   #28
Mooly is offline Mooly  United Kingdom
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Test your ears in my new ABX test
After the beer I did one quick test and it was a 4/8. I haven't done loads of runs and only picked the best. If you look at the three I posted earlier today then they were all consecutive. And so to the runs via the main amp and speakers.

I find the concentration absolutely intense (draining and tiring) to do these things properly... particularly when they are so close as here.

(can't help recalling Scott (I think it was Scott) saying that if it takes this much effort to pick the 741 or whatever from the best of the best then is it all worth it... something like that anyway)

The effects of the beer are only just receding now, it was a strong one
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Old 2nd November 2017, 03:50 PM   #29
Max Headroom is offline Max Headroom  Australia
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Originally Posted by PMA View Post
Thank you for your input, Dan. Please take into account the fact that this time, only the valid ABX protocol is accepted as a proof that you (or anybody else) was able to hear the difference.
Sure, I will give you formal ABX results tomorrow, red wine and good company tonight....
Last night's impressions on quick listen on said cheap (modified) earbuds was one track was cleanish (and boring), the other quite 'dirty' (and boring)....
Neither turned me on, the dirty one drove me 'out of the room'.

Dan.
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Old 2nd November 2017, 04:12 PM   #30
scott wurcer is online now scott wurcer  United States
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Quote:
Originally Posted by Mooly View Post
(can't help recalling Scott (I think it was Scott) saying that if it takes this much effort to pick the 741 or whatever from the best of the best then is it all worth it... something like that anyway)
More like if it is that much effort calling people deaf or liars if they don't instantly hear it is not justified.
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