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> HDMI Cable Quality?, Really make a diffrent?

tracktion3
post Nov 3 2009, 01:56 PM
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HDMI is basically digital information. Does it make any diffrent?

Check this link. Very good info about it.
http://www.avforums.com/forums/hdmi-cables...just-facts.html



Also, please share your experience on the HDMI cable you use. Thanks.
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yonggoh
post Nov 3 2009, 02:03 PM
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i think we need an official HDMI Cable discussion thread smile.gif
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jchong
post Nov 3 2009, 02:04 PM
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I recall this topic was briefly discussed before...
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tracktion3
post Nov 3 2009, 02:11 PM
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QUOTE(yonggoh @ Nov 3 2009, 02:03 PM)
i think we need an official HDMI Cable discussion thread smile.gif
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Thats why I created this one. Can't find anything about it. The link has a video. Watch that video. very good.
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ar188
post Nov 3 2009, 02:20 PM
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Important note added by admin : Different HDMI cables do not affect the quality of the picture. FACT. Reviews stating that cables produce a 'more natural image' or 'better colours' are complete rubbish

as the first thread in the link stated.. nod.gif
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wcliang
post Nov 3 2009, 03:05 PM
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u already found ur answer there...wat else to discuss
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fourzee
post Nov 3 2009, 03:10 PM
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Only difference is the quality of the cable itself i.e. the connectors, built quality but in term of signal, very minimal ..
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zerorulez
post Nov 3 2009, 03:11 PM
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another discussion...

for me just go for a decent cable with good build quality for short length HDMI
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low98944
post Nov 3 2009, 03:22 PM
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People already said the signal for digital is 0 or 1. So, not matter what make the HDMI cable, you still received 0 or 1 signal. You think better quality HDMI can produced 0 or 1 in this form: 0 or 1? laugh.gif

So, do you think if machine received better looking 1 or 0 tongue.gif , your picture and audio qualities will be better? rclxub.gif

Conclusion, if your HDMI cable can received 0 or 1 signal (mean it is good HDMI cable) or can't received 0 or 1 signal (mean this is defect HDMI cable). That's all, case closed. whistling.gif

This post has been edited by low98944: Nov 3 2009, 03:26 PM
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jchong
post Nov 3 2009, 03:31 PM
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QUOTE(fourzee @ Nov 3 2009, 03:10 PM)
Only difference is the quality of the cable itself i.e. the connectors, built quality but in term of signal, very minimal ..
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So how do you judge the build quality of the cable itself?

Thicker is better? Got braid or not? Metal vs plastic connector plug? Got ferrite bead or not? ...do these things make any practical difference?
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Dark NT
post Nov 3 2009, 03:38 PM
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Luckily I bought a RM20 HDMI cable. And it works.
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economist
post Nov 3 2009, 03:40 PM
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My rm30 HDMI cable seems to be giving prob when connected to my ps3...previously no prob at all..now suddenly the pic has interference.....
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Dark NT
post Nov 3 2009, 03:46 PM
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What kinda interference?
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jchong
post Nov 3 2009, 03:47 PM
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QUOTE(low98944 @ Nov 3 2009, 03:22 PM)
People already said the signal for digital is 0 or 1.  So, not matter what make the HDMI cable, you still received 0 or 1 signal.  You think better quality HDMI can produced 0 or 1 in this form: 0 or 1laugh.gif

So, do you think if machine received better looking 1 or 0  tongue.gif , your picture and audio qualities will be better?  rclxub.gif

Conclusion, if your HDMI cable can received 0 or 1 signal (mean it is good HDMI cable) or can't received 0 or 1 signal (mean this is defect HDMI cable). That's all, case closed.  whistling.gif
*



I suppose in a very general sense what you say is correct. A lot of people say digital is digital, it is either received or not received. But if you look at the details there are still some slight differences but which I don't fully understand. Have a look at this article: http://www.audioholics.com/education/cable...ble-bench-tests - in particular read about the test equipment and the eye pattern.

Another theory of mine, yes bits are either 0 or 1. But a signal isn't just 1 bit, it's not a case of cannot receive a 0 or 1 signal = complete failure. In one second megabits of signal is passed through the cable, what if the cable is not capable of transmitting all the bits perfectly? What if only 99.9998% are ok and the 0.0002% is not received? How does this affect the audio/video?
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low98944
post Nov 3 2009, 03:47 PM
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QUOTE(economist @ Nov 3 2009, 03:40 PM)
My rm30 HDMI cable seems to be giving prob when connected to my ps3...previously no prob at all..now suddenly the pic has interference.....
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Defect HDMI cable. tongue.gif


Added on November 3, 2009, 3:49 pm
QUOTE(jchong @ Nov 3 2009, 03:47 PM)
I suppose in a very general sense what you say is correct. A lot of people say digital is digital, it is either received or not received. But if you look at the details there are still some slight differences but which I don't fully understand. Have a look at this article: http://www.audioholics.com/education/cable...ble-bench-tests - in particular read about the test equipment and the eye pattern.

Another theory of mine, yes bits are either 0 or 1. But a signal isn't just 1 bit, it's not a case of cannot receive a 0 or 1 signal = complete failure. In one second megabits of signal is passed through the cable, what if the cable is not capable of transmitting all the bits perfectly? What if only 99.9998% are ok and the 0.0002% is not received? How does this affect the audio/video?
*


tongue.gif Have to wait for expert to answer lo. laugh.gif I think the only problem is how thier manufacture HDMI cable. Even using cheap material, if you produce the HDMI cable in accordance with proper procedures, the that HDMI cable should have not problem at all. So, even using the expensive materials, if the HDMI cable is produce poorly (the works are not up to standard) that expensive HDMI cable may also fail in future. hmm.gif

This post has been edited by low98944: Nov 3 2009, 03:54 PM
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Dark NT
post Nov 3 2009, 03:53 PM
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QUOTE(jchong @ Nov 3 2009, 03:47 PM)
I suppose in a very general sense what you say is correct. A lot of people say digital is digital, it is either received or not received. But if you look at the details there are still some slight differences but which I don't fully understand. Have a look at this article: http://www.audioholics.com/education/cable...ble-bench-tests - in particular read about the test equipment and the eye pattern.

Another theory of mine, yes bits are either 0 or 1. But a signal isn't just 1 bit, it's not a case of cannot receive a 0 or 1 signal = complete failure. In one second megabits of signal is passed through the cable, what if the cable is not capable of transmitting all the bits perfectly? What if only 99.9998% are ok and the 0.0002% is not received? How does this affect the audio/video?
*



thinking about the tramission of all the bits.
If we are copying a excel file from a ext HDD to a PC via a cheapo USB cable. If the USB cable only can transmit 99.9998%, theoretically the excel file is incomplete and some data is missing. But this does not happen even though most people uses regular USB cable.

Thus I still don't understand the expensive HDMIs...
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post Nov 3 2009, 04:08 PM
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jchong
post Nov 3 2009, 04:09 PM
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QUOTE(Dark NT @ Nov 3 2009, 03:53 PM)
thinking about the tramission of all the bits.
If we are copying a excel file from a ext HDD to a PC via a cheapo USB cable. If the USB cable only can transmit 99.9998%, theoretically the excel file is incomplete and some data is missing. But this does not happen even though most people uses regular USB cable.

Thus I still don't understand the expensive HDMIs...
*



From the cross section view, HDMI cable looks more complex than USB cable. Perhaps HDMI signal also more complex?

Anyway, those expensive branded HDMI cables are relying on audiophile branding to charge more smile.gif What is there to understand - just that someone, somewhere is laughing all the way to the bank! tongue.gif
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Dark NT
post Nov 3 2009, 04:14 PM
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Ya... agree... let's support local cap ayam HDMI!
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jchong
post Nov 3 2009, 04:34 PM
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QUOTE(Dark NT @ Nov 3 2009, 04:14 PM)
Ya... agree... let's support local cap ayam HDMI!
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Local? Nah, I suspect they are imported from China.
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