Maybe you should spend £40 on a USB cable and see if your digital camera photos look better too??
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I don't know how up to date that information is, but it seems to mean that any certified product may not in fact be individually certified, certainly at longer lengths
Thing is, though, individual and random errors in data are just that, they aren't richer colours, deeper bass, an increased top end or whatever else was claimed. You see them in blocking / sparklies when they get too much. At most, one can imagine a single pixel during a single frame may be unpredictably the wrong colour. But none of the stuff that is claimed about these digital cables.
Digital cables don't distinguish between sound and picture, it's all just data. So what I said applies equally to sound. Errors are by their nature random and unpredictable. If they are too bad, it results in cracks, pops and drop outs. No amount of random error equates to deeper bass or wider soundstage, both of which I think we're claims by the OP. Certainly that is the sort of thing commonly claimed.
Asynchronous USB works by reducing jitter, although there are long standing and thorough studies that show jitter is undetectable by humans below a certain level, which any well constructed modern dac can achieve.
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Maybe the player detects the error and leaves the information out, or maybe in the case of audio the dac somehow tries to smooth it out...I just don't know. I've not seen enough facts to make a judgement either way.
What you say maybe true, but I'm keeping an open mind on this front.
I think I'd need to see / hear it all for myself to be sure.
Exactly, one error in a billion or whatever does not manifest itself in an audible way. Only when there are lots of errors, eg if your cable is broken or where you get aerial drop out will errors manifest themselves in an audible or visible way. Whether it's so few errors you can't tell or so many that you can, errors in data do not - cannot - manifest themselves in consistent ways such as deeper blacks or lower bass.
It's very relevant to the discussion - the power of suggestion, and how powerful a placebo can be!
I see, you gave him the equivalent of a chip to, er, boost his signal.
I had been testing out a more expensive HDMI cable over the past few months, and I'd recently put my normal one back in (Chord Active Silver Plus). I had meant to try a few familiar Blurays but didn't get round to it last week. Now too much time has passed, so I think I'll need to loan it again...
I was recently talking to Audioquest and they tell me they won't willing.y use any 'active' components in their HDMI cables as their testing found that it actually degraded quality. I haven't been into the details of this yet, but I'm just passing that on for those who are interested. If I recall correctly, Audioquest are working on longer cable runs that won't need an active component in order for it to work properly.
Whats your opinion on this David, as a man that works in this sector.
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It's true and like I said my wife who was unaware of the test and the fact i swapped cables spotted it. So does that mean the plecebo is extended to her telepathicaly
You never did answer my questions about the detail of what 'testing skyfall' meant.
No, but it can mean one or more of many things.
1. She knew you had spent money on an "upgraded" cable. In that case her testament is invalid.
2. She saw you fiddling with the TV or something similar and in those cases her testament is invalid.
3. You inadvertently changed something else. Maybe a mode on TV / BR or some furniture, curtains, etc, thus rendering the point moot.
4. You are lying,
There could be other reasons which I haven't thought of, but HDMI cables only differ in that they function, or don't, or are on the way not to, resulting in drop-outs in audio, obvious artifacts in the picture etc. I have chucked a couple out myself, and always buy from a seller on ebay now. They are premium grade and cost around £10-£20 depending on length.
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