Originally Posted by Eisenhower
I took a DSP class at my university, not that it matters, since you ought to judge an argument on technical merit and not on the background of the person that makes it. Doing so is what is referred as an ad hominem fallacy. Saying "binary dualism" is what is known as tautology, because you are saying the same thing twice. Seeing as you believe USB cables might change sound quality, I am not surprised you are using "binary" incorrectly...
One of the reasons digital signals are used for telephones, TV, etc. is because they are not affected by the cable. It is a 1 or a 0. A digital signal is either transmitted or it isn't. Either a usb cable is functioning, or it isn't (one might call those binaries, or maybe dualisms, but certainly not binary dualisms). A $400 silver USB cable isn't going to improve the quality of the transmitted 1's and 0's, creating a subtle expansion of the soundstage. If it did, then there is something seriously wrong with your DAC. But anyone spending $400 on a USB cable will probably be using a functioning DAC.
As for jitter (since USB audio is not time corrected) even a moderately long USB cable will not affect jitter in an audible way. That is why there haven't been any blind listening tests showing that USB cables affect sound quality. Do people keep their sources that far away from their DAC that it would affect sound quality? NO.
Making claims that are based on fantasy are no more a valuable insight than dismissing them - claims made without evidence can be dismissed without evidence.
In order to make progress in hi-fi audio, you have to accept that certain claims are in fact wrong.
I'm sorry I didn't realise that you raised an argument, in fact I would classify your first post as a comment, and with the basic message intended to tell people who do not agree with your viewpoint that they are wrong. Criticising tautologies is just a way of playing grammar nazi. You understood perfectly what I was saying but chose to focus criticism on an insignificant error of syntax. If the intention were different I would appreciate the correction. I am here to learn.
I'm guessing you have captured the digital signal coming out of this $400 silver USB cable so you can say for sure that there has been no influence over the jitter of the signal? Can you tell us what magnitude and type/s of jitter this $400 USB cable you speak of has introduced against a reference USB cable?
You are correct that USB audio is not time corrected, and most asynchronous devices have a buffer on the receiver side. Previously we have discussed that USB cannot transfer the audio bit by bit as the frequency of the bus is not high enough, therefore it must be using some kind f bulk transfer. This is fair enough and I understand that this means that timing variances from the computer should not affect the signal at the other side of the USB device an a meaningful way, at least based on my limited understanding - I am not an expert in the field.
Some people for whatever reason do use quite long USB cables, personally I do not as my gear is not spaced that far.
Making claims based on fantasy is not what I am here to do, but if you notice other posters who have been on this forum a little longer tend to ask for further evidence or point to where any specifici fantasy is flawed rather than telling people they are wrong which lets face it will not influence anyone and will not contribute toward the general wellbeing of the thread, and is most likely an attempt to stir up people rather than contribute toward the thread.
I have a different philosophy, which is in order to make progress in hifi I chose to trust my ears, whether testing an a mplifier or testing a headphone, or even a cable. I do not offer this as "evidence" to anyone, it is my opinion based on my experience and I encourage others to share their experience or opinion even if it contrary to my own.
It seems this thread has descended into an opprtunity to stirr up audiophiles, so I htink it might be best to bring a mod in to get the thread back on track.
Edited by drez - 9/19/12 at 9:53pm