USB cable supposedly improving DAC sound quality? How can I take other posts seriously after that?
Dec 19, 2017 at 11:12 PM Post #286 of 431
If people did line level matched direct A/B blind comparisons they would buy cheap USB cables, because in a DBT there is no audible difference. Something has to be broken to get to that level. The reason people buy expensive cables is placebo.

Even if that were the case (I don't personally believe that it is because things like EMF/RF interference and impedance mismatches are actually real things, call me crazy), one still cannot discount individual experience. If someone hears a difference, why not let them enjoy it? You don't have to hear a difference yourself. Save some money at the same time too and use the cables you find in a dumpster.
 
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Dec 19, 2017 at 11:22 PM Post #287 of 431
We can agree (again, besides those who have other beliefs here) that external influences on the USB cable signal matter. If so, then we must agree that it will especially matter for a "perfect" cable. Additionally, if USB cable is used with an asynchronous DAC (which further eliminates jitter's influence) that such setup may actually create some audible problems using the same "perfect" cable if the cable is "too fast" because the USB cable and interface then plays a role in the asynchronous DAC sending a feedback value to the PC/streaming server effectively manipulating momentarily its too-fast/too-slow state. A too-fast cable will not be our best friend for that. In other words, some "perfect" cables may (or, per my more general "philosophy", may not) sound bad in some setups too. Let's allow the listener to decide, people!
Unfortunately what you explain is not correct. Asynchronous USB is a logical operation. It is way removed in how the pulses on the USB cable are interpreted. You can have a fast or slow cable and the rate of data coming from PC will not change. And at any rate, the whole point of asynchronous USB is to make sure that the DAC has an independent clock and has no reliance on USB clock/timing. See this article I wrote a few years ago on that: https://audiosciencereview.com/foru...performance-pc-server-interfaces-async-usb.8/

As for letting people listen, sure. The issue becomes when we try to rationalize those experiences with technical explanations that are not correct. It is so tempting to create lay explanations for what we think we are hearing. But it just gets one in trouble when not rooted in reality of how the system is designed and works.
 

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Dec 19, 2017 at 11:24 PM Post #288 of 431
Even if that were the case (I don't personally believe that it is because things like EMF/RF interference and impedance mismatches are actually real things, call me crazy), one still cannot discount individual experience. If someone hears a difference, why not let them enjoy it? You don't have to hear a difference yourself. Save some money at the same time too and use the cables you find in a dumpster.
They can enjoy it. The issue is when they post on forums and insist that their explanations are real and universal. In other words, they themselves are not content with those experiences. They want a seal of approval that they are right. We have pretty severe inferiority complexes as males. :)
 
Dec 19, 2017 at 11:26 PM Post #289 of 431
They can enjoy it. The issue is when they post on forums and insist that their explanations are real/QUOTE]

Their experience is real, for them. That it may not be real to you should not matter to you, but it does.
 
Dec 19, 2017 at 11:27 PM Post #290 of 431
Even if that were the case (I don't personally believe that it is because things like EMF/RF interference and impedance mismatches are actually real things, call me crazy), one still cannot discount individual experience. If someone hears a difference, why not let them enjoy it? You don't have to hear a difference yourself. Save some money at the same time too and use the cables you find in a dumpster.

Impedance isn't an issue with USB. Interference is a problem with computers that aren't designed for being used as high fidelity audio players. Individual experience is subject to bias and placebo. The only way to know if your experience applies to other people is by testing it objectively. I buy monoprice and amazon cables. You are in the wrong forum.

Their experience is real, for them. That it may not be real to you should not matter to you, but it does.

SOLIPSISM rears its ugly head in Sound Science yet again!
 
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Dec 19, 2017 at 11:31 PM Post #291 of 431
You can have a fast or slow cable and the rate of data coming from PC will not change.

I never would claim that a cable changes "the rate of data coming from a PC". Please. What I claim is that a very fast USB cable may inject errors in DAC communicating through the USB in the God-given right of its attempts to execute its asynchronous function. Anyway, I am out of here...
 
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Dec 19, 2017 at 11:32 PM Post #292 of 431
Interference is a problem with computers that aren't designed for being used as high fidelity audio players.


Do you really think everyone is using a computer that was designed optimally for being used for high fidelity audio? That is certainly not the norm.
 
Dec 19, 2017 at 11:41 PM Post #293 of 431
What I claim is that a very fast USB cable may inject errors in DAC communicating through the USB in the God-given right of its attempts to execute its asynchronous function.

Are you claiming those errors are audible in playback of music in the home? Or do they not matter at all?

Do you really think everyone is using a computer that was designed optimally for being used for high fidelity audio? That is certainly not the norm.

I use a $500 Mac Mini as my media server. If flawlessly puts out high fidelity stereo, multichannel and even HD video at the same time. Look into it if you are having problems with your media computer.

Anyway, I am out of here...

GOO BYE! Feel free to take your little friend with you when you leave.

They'll be back. It usually takes a few days for this type to get tired out.
 
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Dec 19, 2017 at 11:54 PM Post #294 of 431
Do you really think everyone is using a computer that was designed optimally for being used for high fidelity audio? That is certainly not the norm.

In my experience, it's actually quite rare nowadays to find a computer with interference, noise, or EMI issues. "Designed optimally for high fidelity" is open to a lot of interpretation. You might want to clarify what you mean by that. If high fidelity means perceptually transparent, that indeed most computers are capable of being used a high fidelity device, and have been for quite some time. The Sound Blaster 16 days are over.
 
Dec 20, 2017 at 12:02 AM Post #295 of 431
Dec 20, 2017 at 1:54 AM Post #296 of 431
The definition of high fidelity is reaching the limits of human hearing. If someone buys a computer that can’t do that, they should exchange it for one that does. It really isn’t hard to find one for cheap.
 
Dec 20, 2017 at 7:33 AM Post #297 of 431
[1] Even if that were the case ([2] I don't personally believe that it is because things like EMF/RF interference and impedance mismatches are actually real things, call me crazy), one still cannot discount individual experience.

1. You can choose to credit all "individual experience" if you wish. Personally I could not even imagine living that way, I'd be in constant fear of ghosts, poltergeists, witches, wizards, bigfoot, yetis, evil fairies, curses, UFOs, aliens, upsetting any one of dozens of gods, voodoo, imperfect power supplies, falling off the edge of the earth, vaccinations and any one of hundreds of other monsters "experienced" individually or by various groups of people over the centuries. That's why we have science in the first place, to help separate "individual experience"/superstition from fact!

2. OK then, You are crazy! Who has said they don't believe in EM/RF interference and impedance mismatches? That's not the issue, the issue is whether a stock or relatively cheap USB cable can reduce EM/RF interference and impedance mismatches to inaudible levels and, this is not an issue because the USB specification takes care of them. So, a more expensive USB certified cable cannot provide a superior performance from a USB certified DAC compared to another USB specified cable, unless one of them is broken/malfunctioning and incapable of handling a USB certified signal.

G
 
Dec 20, 2017 at 8:02 AM Post #298 of 431
If people did line level matched direct A/B blind comparisons they would buy cheap USB cables, because in a DBT there is no audible difference. Something has to be broken to get to that level. The reason people buy expensive cables is placebo. I would be happy to ignore snake oil if people who are subject to placebo effects wouldn't go on internet forums and give lousy advice to newbies.

Please show me a cable that has audible differences. Then show me the measurements or the DBT test that proves it.

Just need to say this. The best part of this thread is we think peoples opinions will be changed. The cable argument has been going on since before I was born and I am 52. Sometimes you can hear a difference sometimes you can't. I have not personally tried it with USB cables (my stuffs not good enough probably) and having worked on digital signals for the last 30+yrs can see the "it doesn't matter argument" as being solid. But in that 30yrs I have also seen plenty of PFM monuments that defy logic. I have seen to many things make sonic differences in my personal experience to dismiss it as not being possible. I am sure in my own pee brain that better cables (materials and construction) will make a difference as I see it everyday at work, but can we hear a difference!!?? I think with the proper system probably/possibly. Kind of off topic cable story but still cables, I just built a set of speaker cables monday from some left over control cable we use at work, highend stranded copper, crazy shielding and insulation. I changed out my cables and thought "hey I think that sounds better", played my test tracks that I know and always use to help reduce any placedo effects . My GF who loves music but never notices SQ differences until I point them out says, without me even asking or mentioning it "did you buy something new? That sounds better than it did". Now will I go spend $200 for speaker wire F-no, it was good enough before.

:beerchug:
 
Dec 20, 2017 at 11:53 AM Post #300 of 431
I always enjoy it when someone trots out the "even my wife notices a difference" stories! We should start a drinking game based on that like the Bob Newhart game. Every time an "even my wife" turns up, we have to drink a beer. Every time someone says "I can hear it clearly, if you can't it must either be your equipment or your ears." we have to take a swig.
 

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