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Top message:  poor guys by x2   Mar 4, 2014, 12:41 PM

Replying to:  Re: poor guys by T Bone   Mar 4, 2014, 4:17 PM

Well, not quite

by Zpike    Mar 5, 2014, 2:32 AM   edited Mar 5, 2014, 2:34 AM

>>Expensive HDMI cables are the biggest scam ever....HDMI connections are a strictly binary thing, either it is connected or its not, there is no such thing as one cable providing a 'better' connection than another.

I get what you're saying, but that's not quite the case. First of all, there is this thing called noise. Perhaps you've heard of it? Crappy wires pick it up and can screw with the data transmission. This was more of a problem with analog circuits, but digital circuits are prone as well. So, good shielding is nice.

Also, wires have this property where they tend to drop parts of the signal the longer they are. Ethernet cables are strictly for binary data, and even those need a repeater after about 100 ft. But better wires made of better metals can carry the same signal further.

Furthermore, binary data isn't really binary. A 1 is signified by a high voltage and a 0 by a voltage drop. So, there's a certain range of voltage for either value. Bad connections can feasibly scramble those values. So, with that being said having a solid connector is important too.

But just because you didn't think of any of that stuff doesn't mean that electronic engineers didn't. There are all kinds of error detection and correction circuits in modern electronics, along with image stabilization, pixel smoothing, and whatever else they can do to minimize the impact when stuff goes wrong. Furthermore, HDMI, DVI, and Composite cables all get pretty firm connections these days (unlike the coax and rca cables of old). Finally, most cheapo cables are made of a suitable material with a suitable amount of shielding.

So, fundamentally I do agree with you that $60 cables are a sham. We live in an age where engineering is good enough that we really can't tell the difference between $60 cables and $7 cables. However, there is certainly a difference in the quality of cables, and you can improve the connection. And if you ever get a bad cable, you'll see I'm telling the truth. It's just that most cables work just fine these days, e.g., there aren't many really bad cables around.

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