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In the last 12 months sales of high definition televisions have skyrocketed. At the moment’s chopping-edge HDTVs and high definition sources demand dramatically higher data rate transfers than previous generations of Audio / Video components. They place incredible bandwidth/performance demands on HDMI cables. In actual fact, today’s most advanced elements operate very near the limits of present HDMI technology.

Online boards have been inundated with questions about HDMI cables. As an industry insider I have been answering a number of these questions. Listed below are five of essentially the most usually asked.

1. Is there really a difference between expensive HDMI cable and inexpensive cable?

There is a difference between expensive and budget HDMI cables. It revolves around the quality of the cable build and the supplies used. The question is whether this will have an effect on my set up. First you should determine the length between your source and your display. If this is less than 15 toes a “normal” cable will be OK.

If it is more than 15 feet you’re greatest to consider a “high speed” cable. Make positive that you purchase from a reputable supply and that the cable is marked with the HDMI brand and says that it is a model 1.3 (don’t fret a couple of, b or c as these are only testing protocols) In the event you live in a coastal or high humidity space it is price considering getting a cable with gold connectors. While this will not improve your signal it will stop corrosion degrading the signal over time.

Some folks assume that as the signals are digital either the cable works or not. Sometimes however the 1s and 0s aren’t all there because of signal degradation as a consequence of inferior cable construction. That can be very true with audio and video sources equivalent to CDs and DVDs. The signal will degrade gracefully, to a point after which it will break up. Music and video shouldn’t be like data. Digital signal processors can work with a degraded signal and deliver less than excellent sound and pictures.

You may by no means improve a digital signal by utilizing an expensive cable but you’ll be able to actually degrade a signal using an inferior cable.

2. Is it OK to bend HDMI cables?

It is best to avoid bending an HDMI cable, definitely don’t kink it. What this does is changes the space between wires, shielding and insulation internally within the cable.

The process of cable manufacture can have a dramatic effect on how the transmitted information looks from one side of the cable to the other. This implies that a cable with better shielding and a more precise distance between the “intelligence” and “ground” wires, will yield a better connection with less interference. Many things can have an effect on your signal. The electrons will create a standing wave in the cable; this will create a small magnetic discipline across the cable. Any imperfection or splice in the cable will disrupt these waves and will replicate/refract the waves. Magnetic information may leak from one cable to another.

3. Ought to I buy 1.3a HDMI Cables or 1.3b HDMI Cables or what?

There is a bit of confusion within the market about all the versions. What you might be referring to here is the specification version, to not be confused with the connector type.

So long as you choose model 1.3 you will be OK. The suffixes of a, b or c merely confer with the testing protocols and really don’t have any consumer impact, although makers are using them to market. (bigger numbers/letters are better… )

4. Will I be able to get the same quality video/audio with a HDMI to DVI-D cable?

“DVI-I” stands for “DVI-Integrated” and supports each digital and analog transfers, so it works with each digital and analog Visual Display Units. “DVI-D” stands for “DVI-Digital” and supports digital transfers only. DVI additionally includes provision for a second data link for high resolution displays, though many devices do not implement this. In those that do, the connector is sometimes referred to as DVI-DL (twin link).

If you convert HDMI to DVI you drop the audio as DVI does not help any audio signals. You will must take a separate cable link between your source and the sound system for this to work.

You will need also to assessment the software settings in your source in order that they know that you’re not outputting audio from the HDMI but a separate outlet.

Some new DVD players, TV sets (including HDTV sets) and video projectors have DVI/HDCP connectors; these are physically the same as DVI connectors however transmit an encrypted signal using the HDCP protocol for copy protection. Computers with DVI video connectors can use many DVI-outfitted HDTV sets as a display; nonetheless, due to Digital Rights Management, it just isn’t clear whether or not such systems will finally be able to play protected content, as the link is not encrypted.

5. When I connect my laptop Blu-ray to my HDTV I get an error about violating copy rights. What can I do?

You are dealing with an HDCP (High def copy protection) problem here.

HDCP is a form of digital copy protection developed by Intel Company to stop copying of digital audio and video content as it travels throughout numerous cables and connections, even if such copying can be permitted by truthful use laws. Every machine handshakes with the other after which passes an encryption key to say that it is OK to display or play the signal. It does this for every frame, typically 30 instances per second. In case you are having problems with blank audio or video it is more than likely that considered one of your units does not help HDCP.

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