Look, we are getting into abstractions here over what is analog and what is digital. I can do the same and I think you will agree. That HDMI cable is by all means an analog cable. We are up to 18gbs now over HDMI, due to the NRZI encoding that’s 9ghz FM. Nothing digital about that. It’s RF plain and simple and needs to be treated that way in terms of LCR parameters. In fact all electrical signal transmission is analog. The HDMI LVDS receiver is just two high speed analog comparators in a window configuration. Linear analog IC’s or blocks in an FPGA library. RS422 on steroids.
But the manner in which the information is encoded over that analog link is the difference. While LCR parameters affect the data stream just like any other analog signal, the net result to the encoded data is much different. It has a high immunity to reasonable transmission distortions that would otherwise degrade an analog signal. That includes noise ingress. That’s the beauty of digital!
The bottom line for video is that as long as the HDMI (or SDI) cable can carry the data in a manner that is still recoverable at the receiver, the image will be as good as was sent into the cable. Noise, HF loss, ground loops don’t matter unless they reach the data threshold - or 1/2 the signal amplitude. Jitter that results from HF loses can be corrected in many ways, especially in video where we have frame buffers.
The bottom line is that no HDMI (or SDI) cable can make subtle alterations, no less improvements, to a video signal. And the idea of that cable carrying in RFI is also bunk. The HDMI receive circuit cleans that up right at the front door. And the processing systems in a flat screen display are not sensitive to noise ingress - within reason. Live next to an AM or SW radio station tower array, you might have problems., But again it won’t look like old fashioned analog video interference. The result will be complete image breakup - unwatchable.
The CBC engineering department did extensive tests on HDMI cables for a consumer rights show going up against Best Buy and their pushing of expensive HDMI cables with flat screen purchases. I guess in Canada they frown on that a lot more than the US. The results were as expected. No difference until the signal was degraded enough to cause data loss. You can find these on YouTube, that is if your DVI/HDMI computer monitor cable is not carrying too much noise
Now I understand the problems where you have a sensitive analog circuit section in the same case,often the same board, as the digital section in an audio DAC. And that problem is even worse in a video DAC. Thank heaven we don’t need video ADCs and DACs much anymore. But that does not extend to the digital video world as much as audiophiles want to believe. And isn’t that great news? Any reasonable quality HDMI cable will produce flawless results. If not, there is no question you have a bad cable.
I am not a practitioner of a religion, but I am pretty sure you just described what’s commonly referred to as “faith”. Something else that can’t be fully measured.
Where do you stand on “Love”? Somewhat measurable, but not completely.
As intent as you appear to be at burying your head in the sand it does figure that you would be heavily invested in these devices. As the old adage goes, it’s easier to fool people than to convince them that they have been fooled. In this case I fear it’s impossible for you to even consider the possibility that your bias has effected your perceptions. I’m at least willing to challenge my beliefs with a controlled test. Why aren’t you? Consider the world class speakers you could have bought with that $11,000.
You believe that a P12 slightly alters your HDMI digital signal resulting in a better quality tv picture. Despite the obvious complete lack of any sort of mechanism that could accomplish this you believe it so when you plug your tv into the P12 it is so! It should be relatively easy to setup a single blind A/B test with your tv, much easier than with an audio system. You just have to have someone else plug it into the wall or your P12 without you knowing which. See if you can get 9/10 correct, it shouldn’t take you very long to challenge your sincerely held beliefs. I think if you actually try this for real it could be eye opening, literally. Good luck if you decide to actually investigate a claim!
You intentionally miss my points and think that implying you spend a lot of money on things makes your opinions more valuable. It doesn’t and yours aren’t. You’ve added nothing of value to this topic or discussion. I wrote a longer post sincerely attempting to discuss a topic and you respond with meme spams. You’re just rude. Nothing to be proud of.
@Shazb0t I recently purchased a very expensive popcorn maker that is powered by a Power Plant. I modified it with a Furutech NCF IEC and it now has a Cardas Clear Beyond XL power cord. I also used some 3M EMI blocking material behind the display which I believe has increased thermometer accuracy.
just tell us your agenda and get it over, put to bed, out to pasture etc
Well I now know I am dead wrong in everything technical I say. I just wish some of you would help me out here and tell me where I am wrong and help set me straight.
And I really need a deep down technical discussion. Something I can research in published engineering journals to learn more.
Or is that the wrong place to look? You tell me? Should I be looking into Stereo Review and other fine high end audio magazines to learn proper electrical theory?
