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Old 5th February 2014, 12:24 PM   #1
Mooly is online now Mooly  United Kingdom
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Default Component audibility. Fact or fiction ?

Following on from the all the listening tests (and many were disappointed when the last passives one was cut short) I tried to think of something different that might help show differences in components etc.

One criticism that keeps cropping up is the "quality of the hardware" that I use... perhaps its a valid criticism. Another the use of Foobar and the two big big issues... that there are to many downloads involved and to much effort needed to listen to them all. All valid points.

So as a first step to a new and much simpler test I would really appreciate your thoughts on this as a test track. Hit it with all you've got listening wise.

https://www.dropbox.com/s/r5tbqnyplh...ile%20Test.wav
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Old 5th February 2014, 01:41 PM   #2
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I repeat my first suggestion, it should not be about using extreme cases to prove a generality as your title states. How about subbing a single plain old Dale 1% resistor for a fashionable one?

I still have not had the time to listen carefully but I did notice some bothersome glitches at regular intervals in the spectrum as others noticed. I saw as much as 12dB difference in very narrow high frequency bands when the midband was an exact match. No idea what analog mechanism could cause this.
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Last edited by scott wurcer; 5th February 2014 at 01:48 PM.
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Old 5th February 2014, 01:48 PM   #3
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I haven't got a Dale 1% resistor

Seriously though Scott, I follow what you are saying (and can see its that kind of component swap many are interested in) but personally I suspect that we have to determine in the first instance whether or not component changes (subtle or not) are actually distinguishable via this kind of a test. And that means starting "coarse" like the cheapo electrolytics.

I would appreciate an opinion on the file in post #1. Its only a couple of minutes in length.



We need a base line of what is detectable .
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Old 5th February 2014, 02:07 PM   #4
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There seems to be an artifact in the audio at 19239 Hz
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Old 5th February 2014, 02:15 PM   #5
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Quote:
Originally Posted by davidsrsb View Post
There seems to be an artifact in the audio at 19239 Hz
Thanks for taking a look. OK This is what davidsrsb is referring too.

Anything else apparent ?
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File Type: jpg Capture.JPG (212.7 KB, 441 views)
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Old 5th February 2014, 02:40 PM   #6
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Quote:
Originally Posted by Mooly View Post

Anything else apparent ?
I am staying silent
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Old 5th February 2014, 04:06 PM   #7
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Can you hear components...

If your blinded by science then no you cant..
On the other hand if your a twisted audiophile yes you can.
If you are an engineer you might say its circuit dependant.

And if you are deaf you cant say can you..

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M. Gregg
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Old 5th February 2014, 04:09 PM   #8
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Brittle, garbled, metallic.
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Old 5th February 2014, 04:14 PM   #9
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Quote:
Originally Posted by Barleywater View Post
Brittle, garbled, metallic.
Thank you. These are just first steps for this one at the moment. Please bear with me on this.
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Old 5th February 2014, 05:05 PM   #10
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Glad that was helpful.

A little more specific:

NastyNormalNasty.png

In the above, cue points have been added labeled "Nasty" and "Normal"

Track starts out nasty. At 2nd cue point sound is relatively normal. Then goes nasty, normal, nasty to the end.

"Normal" sound is characterized by better low end, less garble smear, and less metallic. Metallic in nasty regions is more than just unmasking by having less low end.

Not at all subtle.
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