Author Topic: Plausible reason for cables sounding different  (Read 1366 times)

Offline Stanp

Plausible reason for cables sounding different
« on: May 04, 2019, 10:51:16 AM »
I thought this a very plausible reason for cables sounding different; something I could believe.
 https://youtu.be/c3AJJrKNBRQ

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Re: Plausible reason for cables sounding different
« Reply #1 on: May 04, 2019, 01:58:09 PM »
So cables sound different with different material?  I never thought of this

The overall opinion is "no", but he is careful not to put his foot in it

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Offline Louisek

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Re: Plausible reason for cables sounding different
« Reply #2 on: May 08, 2019, 09:28:08 AM »
I'm currently on "loan" to the École Polytechnique in Paris and being keen on audio I have been experimenting with metal coatings and surface effects on copper and other materials.  As long as the cross-section of the cable is adequate for the maximum expected current (plus 20%) then more effect on transmission speed is discernable by varying the dipped, plated or pressed surface treatment with an alternative metal (to the copper substrate).  This does not have to be silver or aluminium, but can be zinc, tin and even gold

Naturally, these transmission speeds are measurable using a non-contact laser displacement as the HLDC-CMOS range of devices, but each material has it own characteristics

Knowing this, there can be a difference in the sound signature for frequencies above 1,9KHz which can materialise into audible effect

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Re: Plausible reason for cables sounding different
« Reply #3 on: May 16, 2019, 07:45:06 PM »
There. How do you like them apples.
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Offline Den123

Re: Plausible reason for cables sounding different
« Reply #4 on: May 16, 2019, 09:19:05 PM »
Very interesting study, Louisek. 1.9kHz seems very low. What sort of difference is there, percentage wise?

Offline DACMan1

Re: Plausible reason for cables sounding different
« Reply #5 on: May 17, 2019, 07:50:31 AM »
I'm currently on "loan" to the École Polytechnique in Paris and being keen on audio I have been experimenting with metal coatings and surface effects on copper and other materials.  As long as the cross-section of the cable is adequate for the maximum expected current (plus 20%) then more effect on transmission speed is discernable by varying the dipped, plated or pressed surface treatment with an alternative metal (to the copper substrate).  This does not have to be silver or aluminium, but can be zinc, tin and even gold

Naturally, these transmission speeds are measurable using a non-contact laser displacement as the HLDC-CMOS range of devices, but each material has it own characteristics

Knowing this, there can be a difference in the sound signature for frequencies above 1,9KHz which can materialise into audible effect

Very interesting. Is there a paper I can read on this? Or any detail that is more than superficial?

Also, how did you manage to use a laser displacement measuring device to measure transmission speed in cables.

Also, how does transmission speed translate to anything audible?

Also, if any of this were true, then we would be able to measure the effect easily by means of normal audio spectrum equipment - like a sound card.

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Re: Plausible reason for cables sounding different
« Reply #6 on: May 17, 2019, 08:10:25 AM »
I regularly (well, 4 or 5 times a year) exchange emails with Louise as she also develops software for Audirvana and Devialet and showed her around Cape Town when she visited here a few years back

Apparently the transmission speed was measured by calculating the difference between a known length of metal material and one with an added layer in terms of an electrical signal.   I did not really under the science and her English and spelling is sometimes a bit strange.  I also have no idea what a laser displacement device is, and asking Mr Google was also unhelpful
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Offline DACMan1

Re: Plausible reason for cables sounding different
« Reply #7 on: May 17, 2019, 08:35:16 AM »
I regularly (well, 4 or 5 times a year) exchange emails with Louise as she also develops software for Audirvana and Devialet and showed her around Cape Town when she visited here a few years back

Apparently the transmission speed was measured by calculating the difference between a known length of metal material and one with an added layer in terms of an electrical signal.   I did not really under the science and her English and spelling is sometimes a bit strange.  I also have no idea what a laser displacement device is, and asking Mr Google was also unhelpful

Well, I am truly interested - show me the science.

Offline d0dja

Re: Plausible reason for cables sounding different
« Reply #8 on: May 17, 2019, 08:43:51 AM »
And yet in repeated double-blind tests, no-one has ever been able to reliably tell cables apart.


Offline AlleyCat

Re: Plausible reason for cables sounding different
« Reply #9 on: May 17, 2019, 09:06:52 AM »
The double blind testers have gone into hiding?

They in a conference discussing this heresy.
"Not everything meaningful is measurable, and not everything measurable is meaningful" - Floyd Toole

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Re: Plausible reason for cables sounding different
« Reply #10 on: July 21, 2019, 03:08:59 PM »
"They" (she will not tell me who) tested various cables and a solid silver USB cable with PFTE insulation sounded different.  Better or worse?  Neither, just different
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Offline scrarfussi

Re: Plausible reason for cables sounding different
« Reply #11 on: July 22, 2019, 02:07:24 PM »
And yet in repeated double-blind tests, no-one has ever been able to reliably tell cables apart.
I wonder which ones

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Re: Plausible reason for cables sounding different
« Reply #12 on: July 22, 2019, 02:30:32 PM »
It was a Nimak Audio (A) silver USB cable, 1 metre long.   Apparently these are made in Croatia and they sent a batch of various cables for testing.  Its about 90€ retail
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Offline Carnajo

Re: Plausible reason for cables sounding different
« Reply #13 on: July 22, 2019, 02:34:26 PM »
And yet in repeated double-blind tests, no-one has ever been able to reliably tell cables apart.

I can conclusively prove that some cables sound different. I have a lovely 3m RCA cable used for my subwoofer that I recently replaced. Even in a double blind test I can pick the one cable from the other under the right conditions. The right conditions being that the old cable, when getting near to my AVR's power cable, would cause the sub to hum very badly. The new cable does not. The new cable probably cost less than the original one that hums  :tongue:.

Offline Ampdog

Re: Plausible reason for cables sounding different
« Reply #14 on: July 24, 2019, 06:57:58 AM »
Carnajo,

Just so that I understand you correctly (and with due respect, your emoticon at the end leaves me in some doubt): When folks say that certain cables sound differently, they mean the program (music or whatever) sounds differently from one cable to another. What I gather from your post is that you found interference with the 'old cable' (the RCA?) and not with the new one?

One must differentiate between music sounding different, and interference being picked up or not. It may be something simple as in that the old cable was not screened properly whereas the new one is. This is not the same as in a cable changing the character/sound of the music.

Can you kindly elucidate, please?
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