The High Definition Multimedia Interface, short as HDMI, is a system which can send uncompressed high-definition video and audio through a single cable. When compared to other video and audio output, most consumer electronics only can provide the best video and audio via this connection. Although, picture and sound quality in much the same way, there are quality differences between manufacturers. In a word, before installing a high-quality HDMI cable would help to guarantee success.
All video or audio cable is complying with the principles of electrical resistance. HDMI also same, if it is too long, maybe the cable of insufficient gauge readily apparent. Using a thin cable over 50 feet may cause issues. If it’s longer distances, try to use the thickest gauge cable may mitigate these distances. HDMI cables usually come in gauges ranging from 28 to 24; smaller numbers indicating thicker internal wiring and superior shielding comes with it. If possible, try to use the shortest cable for the task and always test the connections that running the cable through a wall.
One best method used by most cable manufacturers to increase the perception of quality of cable is to increase the connector’s thickness and stiffness. However, when applied to HDMI, unless you take an HDMI cable which with a locking or screw-in connector, it’s easy to increase strain placed on the cable’s connector and then may cause the disconnect for the device ports frequently by breaking of the HDMI ports. This is especially true on televisions with downward facing HDMI jacks.
HDMI continually upgrade revisions every few years to meet the requirement of the hardware and movie industry demands. For example 2012, the newest revision is HDMI 1.4, which is able to provide 10.2 gigabits per second. This is roughly double the original HDMI 1.0 and 1.2 standards, which is only support for 4.95 gigabits per second, but equivalent to HDMI 1.3. HDMI 1.4 also supports Ethernet connectivity with high speed data and “4K” resolution at 4,096 by 2,160 pixels. Although newer HDMI cables are fully backward compatible with older hardware, the hardware cannot comply with the features by advances in HDMI cable technology.
In additional High Definition Content Protocol, short as HDCP, is encryption applied to signals sent via HDMI ports and cables. If you use a low cost HDMI splitter or non-HDCP-compliant input device there may causes a bottleneck. If you have high-quality cables, and make sure everything connect correctly but still do not see a picture, you should disconnect devices in the signal chain to make sure that the if one or more devices are lead to lack of HDCP compliance to prevent signal pass through. Moreover, HDMI cables can not automatically guarantee the best quality. You should keep in mind that you are set the video output resolution and choice the best audio format on your devices.