You can identify these instances by the odd lengths of HDMI cables that start showing up on the market. To me, these lengths do not fit the standard mold. Of course, you would need to have two identical setups running to test this out and honestly, who does this? There must be a way however, to run HDMI cables and keep the quality high and there is? Read on to find out more. If requested, new home builders are installing Cat6 wire in the walls before the walls are drywalled.
This means you only need an HDMI cable to be long enough to span from the device to the wall connection. These cables do not require an electrician to install so you can go ahead and fish Cat6 cables through your wall, if you want to modernize your networking system. There is conflicting information online regarding when and why lag appears when using long HDMI cables.
If you are noticing there is lag in your audio or video, try checking the HDMI cable first. I have had cables just stop working. As you can see, many things can cause a lag with your video or audio when using HDMI cables and it might not even be the cables fault. To troubleshoot the issue, start at the beginning source checking settings and cables as you move down the line to the end source.
This has always helped me weed out the problem. Up next, I am going to cover some questions we might have touched lightly on or I found online while researching for this article.
I feel they will help you in the long run if we go over them quickly. It is difficult to identify if there is lag unless you can perform a side by side test with duplicate equipment and cables. So are cheap HDMI cables better? A cheaper HDMI cable is only better if and only if it has passed specification requirements. This is what other more expensive brands are taking advantage of.
On the other hand, more expensive cables are not entirely bad, especially if they have other features included in the HDMI cable. Some have more heavy-duty connectors which are really important for durability purposes.
As far as manufacturers are concerned, they can create a cable that can be longer than 50 feet just in case someone has to connect a player and a TV across the whole house.
But who would want that? However, a consensus among manufacturers is that 20 feet is considered to be the maximum length of an HDMI cable if you want to retain the quality of the audio and the video. A little longer than this, and you just might ruin your own viewing and listening experience. Why 20 feet? The rule here is that the shorter your HDMI cable is, the better the sound and video quality.
Say, for some unknown reason, you need an HDMI cable that is beyond 20 feet. What now? Again, this maximum is considered the optimal length to ensure proper signal transmission. Another option is to use a wireless HDMI kit.
This "implicit" limitation on cable length, of course, is dependent on the limits of what can be done in the way of cable design. I see foot and longer cables around all the time. If you really think your vendor has a compliant foot HDMI cable , ask him for a copy of his compliance testing certificate , which will show the distance for which he's passed testing, and under what spec version.
If you find a foot compliant cable with no booster or EQ unit; more about that below , let us know; we have never found a single one, and we are pretty sure there's no such thing. There are, of course, "active" HDMI cables on the market also. These typically involve use of a powered amplifier which may or may not incorporate an EQ unit to compensate for the loss of high-frequency information.
We don't know what the longest lengths passing compliance testing are in products of that type, though we have seen active connectivity solutions which run considerable distances, the longest of them using fiber optic cable and costing a bundle. Our attitude toward active solutions has generally been that it's better to do without, if one can.
These amplifiers and EQs provide new potential points for failure in signal delivery, and make diagnosis of problems more complex; still, if you need to run extreme distances, these types of solutions may work for you. Fortunately, connections which are not quite spec-compliant frequently work just fine.
The spec is written with the intent of ensuring that any compliant source, hooked to any compliant display through any compliant cable, will work; in practice, this means that while one isn't guaranteed success with a non-compliant cable, there normally is some headroom to work within. The signal coming out of the source is probably better than the minimum signal required by the spec, and the data-recovery characteristics of the display circuitry are probably better--often, much better--than required by the spec.
So, while it appears that every foot passive HDMI cable on the market is noncompliant, most of them work, on most source and display combinations, just fine. But what will work is certainly tied to the bitrate being run through the cable, and the difference between what will work at p and p may be extreme.
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