HDMI cable? and upscaling dvd

aliEnRIK

Marty_J wrote: »

This is easily tested (and refuted). I have done it myself. Sorry, but they're bit-for-bit identical, regardless of the manufacturer.



A ferrite choke has absolutely nothing to do with losing information (at least, not in the way you seem to be implying). It is there to stop EMI or RFI damaging the signal. If it did interfere with a digital signal, it simply wouldn't work. It wouldn't "lose some air around the midrange" or "go woody in the low bass" or anything like that.

Digital signals can be disrupted just like analogue signals, but digital signals stop working when they are.

But the signal is a DIGITAL one. How can interference possibly effect a digital signal?? Its all 1s and 0s??
I thought the whole point was that these DIGITAL cables are all the SAME and CAN NOT be interfered with?? Im all confused now

aliEnRIK

Marty_J wrote: »

This is easily tested (and refuted). I have done it myself. Sorry, but they're bit-for-bit identical, regardless of the manufacturer.



A ferrite choke has absolutely nothing to do with losing information (at least, not in the way you seem to be implying). It is there to stop EMI or RFI damaging the signal. If it did interfere with a digital signal, it simply wouldn't work. It wouldn't "lose some air around the midrange" or "go woody in the low bass" or anything like that.

Digital signals can be disrupted just like analogue signals, but digital signals stop working when they are.

None of my hdmi leads have ferrites on. Why do they not stop working due to INTERFERENCE??

superscaper

aliEnRIK wrote: »

Entirely true, theres ALL sorts of 'engineers'. Im not actually allowed to say but I work in a military complex that builds military aircraft

How on earth would that make any difference to saying what stream of engineer you are? I've signed NDAs and I'm still covered by the official secrets act on some of my work but that doesn't stop me telling anyone the type of engineer I am. In fact my current job is in the aerospace industry so I'm getting to know it quite well. So what stream are you? There's not a contract in the world that stops you from saying, nor the qualifications and institution memberships you have. The only thing that'd stop you revealing that kind of information is personally not wanting to. I'm not asking you about current or previous work projects, merely the most fundamental qualification questions.

aliEnRIK

superscaper wrote: »

How on earth would that make any difference to saying what stream of engineer you are? I've signed NDAs and I'm still covered by the official secrets act on some of my work but that doesn't stop me telling anyone the type of engineer I am. In fact my current job is in the aerospace industry so I'm getting to know it quite well. So what stream are you? There's not a contract in the world that stops you from saying, nor the qualifications and institution memberships you have. The only thing that'd stop you revealing that kind of information is personally not wanting to.

Thats a fair comment but until I go find my documents (nothing Ill be doing any time soon) then im keeping quiet as I wouldnt like to say either way and really has no relevence anyways. I was simply trying to say im not some thick head who sweeps the streets, stacks shelves or sells drugs for a living.

Stephen_Webber

As someone who holds a degree in Electronic and Electrical Engineering (University of Strathclyde, 1998) and who has worked in Telecoms for 10 years, I still can't see any circumstance where a cheap but well-made cable will perform any less than an expensive one unless we are talking significant lengths (10m for example). Those expensive cables are nothing more than a means of parting a fool and their money. Granted, with analogue cables I agree that it makes sense to pay more, but not for HDMI cables. There is no difference between the cheap HDMI cables I got with my Sky HD and Xbox and the other 3 I bought in terms of quality (and I ended up paying between £10-20 for those, since I needed a cable and they were the cheapest I could find at short notice).

superscaper

aliEnRIK wrote: »

Thats a fair comment but until I go find my documents (nothing Ill be doing any time soon) then im keeping quiet as I wouldnt like to say either way.

In other words you just don't want to say. The only reason I was pressing was that what you've said in your posts is not anything an engineer would say in my experience. You certainly would be allowed to say which stream of engineering you graduated in as that predates any current work you're doing anyway and doesn't give anything in terms of sensitive information no matter what you're working on.

Marty_J

aliEnRIK wrote: »

yes I have (at my old place), and no it didnt

I really have to insist that it will.

As it stands, you have null points all over your room, standing waves, an exaggerated bass response in the corners, and you have primary reflections bouncing off the walls, the ceiling and the floor, arriving a few milliseconds after the direct sound from the speakers, totally smearing the stereo image.

All untreated spaces have these problems to varying degrees.

But the signal is a DIGITAL one. How can interference possibly effect a digital signal?? Its all 1s and 0s??
I thought the whole point was that these DIGITAL cables are all the SAME and CAN NOT be interfered with?? Im all confused now

Of course something can affect a digital signal. The point is that when it does, the signal stops working properly. It doesn't subjectively decrease in audio quality.

None of my hdmi leads have ferrites on. Why do they not stop working due to INTERFERENCE??

At a guess, because nothing is interfering with the signal.

I have plenty of digital cables, including FireWire and USB, without ferrite chokes if it's any consolation.

Though, I have seen HDMI cables with them, so maybe you're missing out?

[Deleted User]

You didn't have to go that far, simply "i work with aircraft doing _____" is more than fine! We don't want to see credentials and/or documents.

I've worked on projects where I have had to sign NDA's, it didn't stop me telling people what I do for a living etc but it does prevent me from discussiong methosd/procedures/architecture.

aliEnRIK

Stephen_Webber wrote: »

As someone who holds a degree in Electronic and Electrical Engineering (University of Strahclyde, 1998) and who has worked in Telecoms for 10 years, I still can't see any circumstance where a cheap but well-made cable will perform any less than an expensive one unless we are talking significant lengths (10m for example). Those expensive cables are nothing more than a means of parting a fool and their money. Granted, with analogue cables I agree that it makes sense to pay more, but not for HDMI cables. There is no difference between the cheap HDMI cables I got with my Sky HD and Xbox and the other 3 I bought in terms of quality (and I ended up paying between £10-20 for those, since I needed a cable and they were the cheapest I could find at short notice).

Another fair comment, I cant argue as I have no basis to argue. But as ive said from the beginning to SEE a difference you first need to condition the MAINS supply as the tv simply wouldnt be able to respond to the changes in cable otherwise due to all the electrical interference. ie, anyone that thinks that JUST buying a decnt hdmi will make it look better is WRONG.
I hold my hand up, im no electrician so you clearly beat me hands down on that qualification. But I DO know my hifi.

aliEnRIK

be_alright wrote: »

You didn't have to go that far, simply "i work with aircraft doing _____" is more than fine! We don't want to see credentials and/or documents.

I've worked on projects where I have had to sign NDA's, it didn't stop me telling people what I do for a living etc but it does prevent me from discussiong methosd/procedures/architecture.

Thats fair enough (i hope!)

Im currently a programmer/machinist (as in complex 'macro' programming, not simple every day shop floor programming)