The acronym HDMI stands for High Definition Multimedia Interface. This is the most advanced audiovisual transmission method commercially available at this time. The technology transmits audio and video signals in their original digital form at the speed of up to 10 gigabytes per second. This technology was first introduced in the year 2002 and has since then undergone several official upgrades. These upgrades are HDMI 1.0, HDMI 1.1, HDMI 1.2, HDMI 1.2a, HDMI 1.3 and HDMI 1.4. Out of these upgrades, HDMI 1.4 is the latest version of the original technology.
What exactly is a High Definition Multimedia Interface?
The interface is provided by the HDMI cables. These cables have 19 sub cables inside them. The bandwidth of this cable for digital data transmission is twice of what is even required today. The cable can accommodate up to 8 audio channels.
As mentioned above, the latest version of these HDMI cables is called HDMI 1.4. This new cable is able to accommodate advances in network capacities, improvement in resolution and automotive connections. The HDMI LLC licensing website offers a downloadable version of the full specifications of HDMI 1.4.
What are the new developments?
HDMI 1.4 offers Ethernet connectivity for internet sharing to other HDMI devices without the need of another cable. The new ‘Audio Return’ channel has reduced the number of cables required for audio transmission between source and HDMI device.
Better 3D support
The HDMI 1.4 cable standardises the I/O part of the system to support 3D formats better. You can get resolutions of 1080p on a dual stream. This enables you to have a common format and resolution level for all 3D content.