Ultimate listening test ... test your ears and audio chain

Which File Do You Prefer

  • Blue

    Votes: 0 0.0%

  • Green

    Votes: 0 0.0%

  • I can not decide

    Votes: 0 0.0%
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#147
So my guess is completely wrong hehe. Okay, looking forward to the mysterious test.

BTW I was sure I heard the sound of turntable so I guessed it should be a method to remove tick and tock or wow and flutter, can be with injected noise prior to ADC.

I wish this is designed by PMA, because the signal is really messed up, there seem to be high IMD contents in one of the file.
 
#148
My vote

Well i voted for green, and here is some shooting out from my experinece when soldering:

Green could be DC-coupled and blue AC-coupled, or green with burned in caps and blue with non settled caps. Last i also think the difference can be simple as green recorded with long buffer and blue recorded with short buffer. (The released plots from PMA spoils my DC-coupling thinking unless he used measurement soundcard that have falling bottom end).

"Green" is either direct clean signal, or chain has solid core cable connection (could be PCB kobber lanes), or it could be warm biased amp maybe with green sound running through.

"Blue" have in chain either multistranded cablecore and/or amp with paralell devices, or a very short delay to hole soundstage is added from uS to say 2mS.
 
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#149
Jay said:
I wish this is designed by PMA, because the signal is really messed up, there seem to be high IMD contents in one of the file.
Click to expand...

But none of 60Hz+7kHz, 250Hz+8kHz, 13+14kHz and 19+20kHz shows almost any difference in IMD, regardless amplitude level.

My experience is that we tend to assign some sound changes to some parameters, but almost always we fail, we are right only in case that there is a terrible problem.
Another experience of mine that I have collected in the last 10 years is that even almost same set of traditional measurements (like the RightMark set here) does not mean same sound impression we hear. Good measurements are only necessary condition but not satisfactory condition.
 
#150
foobar2000: Components Repository - ABX Comparator

download file

from:
Foobar2000:How to install a component

Step 1: Open the foobar2000 preferences dialog (click File | Preferences or key CTRL+P).

Step 2: Go to the Components page.

Step 3: Click the "Install..." button and select the component archive, or simply drag it to the list.

Step 4: Press "OK", you will be prompted to restart foobar2000 in order to load the newly installed component.

How to Use:

  • Install the component
  • Select two files in the playlist
  • Right click - Utilities - ABX Two Tracks...

Not sure about this part

View attachment ABX replaygain and DSP.bmp

I left them unclicked but maybe the experts can chime in ...






Ta da!

View attachment ABX menu.bmp



😎
 
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#151
BYRTT said:
Green could be DC-coupled and blue AC-coupled, or green with burned in caps and blue with non settled caps. Last i also think the difference can be simple as green recorded with long buffer and blue recorded with short buffer. (The released plots from PMA spoils my DC-coupling thinking unless his used measurement soundcard have that falling bottom end).
Click to expand...

The card has the slightly falling bottom end. But then please compare blue and green and tell me where the slight fall in lowest frequencies is bigger 😉
 
#153
PMA said:
But none of 60Hz+7kHz, 250Hz+8kHz, 13+14kHz and 19+20kHz shows almost any difference in IMD, regardless amplitude level.

My experience is that we tend to assign some sound changes to some parameters, but almost always we fail, we are right only in case that there is a terrible problem.
Click to expand...

I didn't mean the real IMD. I just found that green was fatiguing. There might be more low freq content in green, but it was 1" speaker so cannot be.

Blue sound is less or not "normal" but it is more musical and not fatiguing so I guessed there was effort to improve green chain but resulted in "IMD" havoc.
 
#155
Just once more please let me repeat the RightMark results, both blue and green in one file:
 

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#156
I'm playing them on two 'all digital' systems so in a weird way ... if the chain was digital (48k?!?) then they've never seen the 'light of day' till it hits my speaks ... :cubist:

Whoa, dude ...

{Jan in robotic voice "Invalidator, in-val-i-da-tor you will be invalidated!}
 
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#157
Jay said:
I didn't mean the real IMD. I just found that green was fatiguing. There might be more low freq content in green, but it was 1" speaker so cannot be.

Blue sound is less or not "normal" but it is more musical and not fatiguing so I guessed there was effort to improve green chain but resulted in "IMD" havoc.
Click to expand...
Again, I'm largely with Jay here. Been out of the picture for the last day or so, but did a first differencing based purely on visual alignment, and this shows a significant phase shift factor: the lower the frequency the greater the difference. So, a more involved process will be needed to tease out significant aspects.
 
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