Hailey Posted March 24, 2014 Share Posted March 24, 2014 I've always been of the opinion that a USB cable is a USB cable, that is transmits 1s and 0s, no more, no less. Either the bits are there, or they're not. I've never understood how anyone can argue with that. I still don't know how one can argue with that. Which is why I am confounded to report...my perception of a subtle but unmistakeable improvement in the sound I'm hearing from my gear since switching from a $15 BestBuy house brand USB cord to $35 Pangea audio USB cord. This must be a placebo effect, right? Link to comment
Paul R Posted March 24, 2014 Share Posted March 24, 2014 Probably not, you might be hearing a real difference. But does it really matter? If it sounds better, it sounds better. (grin) -Paul I've always been of the opinion that a USB cable is a USB cable, that is transmits 1s and 0s, no more, no less. Either the bits are there, or they're not. I've never understood how anyone can argue with that. I still don't know how one can argue with that. Which is why I am confounded to report...my perception of a subtle but unmistakeable improvement in the sound I'm hearing from my gear since switching from a $15 BestBuy house brand USB cord to $35 Pangea audio USB cord. This must be a placebo effect, right? Anyone who considers protocol unimportant has never dealt with a cat DAC. Robert A. Heinlein Link to comment
Hailey Posted March 24, 2014 Author Share Posted March 24, 2014 Probably not, you might be hearing a real difference. But does it really matter? If it sounds better, it sounds better. (grin) -Paul Ain't it the truth. But if it is the placebo effect, wow, the placebo effect sure is amazing. And if it is the USB cable, well, that's amazing. Either way, I'm amazed. Just wish I knew which way it was. Link to comment
Tintinabulum Posted March 24, 2014 Share Posted March 24, 2014 Hailey, are you aware of jitter? Link to comment
Hailey Posted March 24, 2014 Author Share Posted March 24, 2014 Hailey, are you aware of jitter? Yes, but I'm not clear on the USB cable's role in jitter regulation/minimization beyond boundary level conditions. If that's what you're getting at, and you wouldn't mind elaborating... Link to comment
RealAudio Posted March 24, 2014 Share Posted March 24, 2014 Which is why I am confounded to report...my perception of a subtle but unmistakeable improvement in the sound I'm hearing from my gear since switching from a $15 BestBuy house brand USB cord to $35 Pangea audio USB cord. This must be a placebo effect, right? Have your SO swapit a dozen or so times, hiding the cable. If you can tell half the time, there's no difference. Link to comment
Tintinabulum Posted March 24, 2014 Share Posted March 24, 2014 Yes, but I'm not clear on the USB cable's role in jitter regulation/minimization beyond boundary level conditions. If that's what you're getting at, and you wouldn't mind elaborating... It was more a reference to the "Either the bits are there, or they're not". I don't know if the USB cable affects jitter. Link to comment
bhobba Posted March 24, 2014 Share Posted March 24, 2014 This must be a placebo effect, right? No. There are many technical reasons USB cables can and do sound different. The best known one is the data is near the power in the cable and spikes and other junk from the usual switching mode supplies in computers contaminates the data lines. This doesn't affect detecting a 1 or 0 so for things like an external disk drive it makes no diffeence, but DAC's rely on more than that - the timing is also important. Also these spikes can radiate inside the DAC and cause issues. DAC's can be designed to address these issues, but I only know of one that is 100% effective - that's the Phasue DAC. USB cables make absolutely no difference with that DAC. But the designer has gone to a LOT of trouble to ensure that (eg its own internal linear regulated power supply for just the USB) - most manufacturers don't - yet strangely still claim USB cables etc make no difference - actual listening however shows otherwise. Thanks Bill Link to comment
speavler Posted March 24, 2014 Share Posted March 24, 2014 This must be a placebo effect, right? Depends on which forum you're on. Link to comment
Hailey Posted March 25, 2014 Author Share Posted March 25, 2014 No. There are many technical reasons USB cables can and do sound different. The best known one is the data is near the power in the cable and spikes and other junk from the usual switching mode supplies in computers contaminates the data lines. This doesn't affect detecting a 1 or 0 so for things like an external disk drive it makes no diffeence, but DAC's rely on more than that - the timing is also important. Also these spikes can radiate inside the DAC and cause issues. DAC's can be designed to address these issues, but I only know of one that is 100% effective - that's the Phasue DAC. USB cables make absolutely no difference with that DAC. But the designer has gone to a LOT of trouble to ensure that (eg its own internal linear regulated power supply for just the USB) - most manufacturers don't - yet strangely still claim USB cables etc make no difference - actual listening however shows otherwise. Thanks Bill Fascinating. Thanks for that explanation. Link to comment
Hailey Posted March 25, 2014 Author Share Posted March 25, 2014 Have your SO swapit a dozen or so times, hiding the cable. If you can tell half the time, there's no difference. Great idea. My SO will not have the patience. But I might be able to enlist a friend this weekend... Link to comment
mav52 Posted March 25, 2014 Share Posted March 25, 2014 Depends on which forum you're on. ain't that the truth The Truth Is Out There Link to comment
Paul R Posted March 25, 2014 Share Posted March 25, 2014 Great idea. My SO will not have the patience. But I might be able to enlist a friend this weekend... The way we often do it here is I ask Karen to listen to this and tell me if she likes one better than the other, or if she can hear anh difference. I do not generqlly twll her what is getting switched. If she can hear a difference and describe it, I usually just accept it is a real difference and go on from there. If not, I ascribe what I hear to imagination and just enjoy it anyway. Be careful here, you can absolutely convince yourself you do not hear a difference where one really exists- every bit as easily as the other way around. Anyone who considers protocol unimportant has never dealt with a cat DAC. Robert A. Heinlein Link to comment
wgscott Posted March 25, 2014 Share Posted March 25, 2014 There are many measurable differences I (and most if not all people) cannot hear. I have never encountered an unmeasurable difference I am convinced I can hear. Link to comment
speavler Posted March 25, 2014 Share Posted March 25, 2014 The way we often do it here is I ask Karen to listen to this and tell me if she likes one better than the other, or if she can hear anh difference. I do not generqlly twll her what is getting switched. If she can hear a difference and describe it, I usually just accept it is a real difference and go on from there. If not, I ascribe what I hear to imagination and just enjoy it anyway. Be careful here, you can absolutely convince yourself you do not hear a difference where one really exists- every bit as easily as the other way around. ah yes, the 'non-audiophile spouse' test Link to comment
Boris75 Posted March 25, 2014 Share Posted March 25, 2014 ah yes, the 'non-audiophile spouse' test It's a good test in my opinion. The threshold for passing the test is quite high in my experience. Link to comment
Paul R Posted March 25, 2014 Share Posted March 25, 2014 OT: Something fishy is going on here... I know darn well I corrected at least two of the typos that are in the post below. Most irritating... Apologies for the terrible typing guys. -Paul The way we often do it here is I ask Karen to listen to this and tell me if she likes one better than the other, or if she can hear anh difference. I do not generqlly twll her what is getting switched. If she can hear a difference and describe it, I usually just accept it is a real difference and go on from there. If not, I ascribe what I hear to imagination and just enjoy it anyway. Be careful here, you can absolutely convince yourself you do not hear a difference where one really exists- every bit as easily as the other way around. Anyone who considers protocol unimportant has never dealt with a cat DAC. Robert A. Heinlein Link to comment
sandyk Posted March 25, 2014 Share Posted March 25, 2014 OT: Something fishy is going on here... I know darn well I corrected at least two of the typos that are in the post below. Most irritating... Apologies for the terrible typing guys. -Paul I have had similar experiences with minor corrections. How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file. PROFILE UPDATED 13-11-2020 Link to comment
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