We are all lucky enough in this day and age to have a multitude of electronic entertainment equipment in our homes. With prices dropping exponentially we now have HDTVs, DVDs, PlayStations, Digital Radios, and Satellite TV among others. The home theatre has been born and it is due to clever little inventions that we have this privilege. Before the HDMI cable we used to rely on the following connectors:
Component video cables- known to you and I as RCA connectors – these connectors carry video signals into two channels for colour and a third for luminance. Another connector is the S-video cable which transmits analogue signals using one cable and a four pin connector. Another is the DVI cable which is a 29 pin connection used for computer monitors which can also carry digital signals.
Many people who had HDTVs in the early stages relied on DVI for obvious reasons in that it hit the market first. Not to go into too much depth but the Digital Visual Interface (DVI) cable is a low cost, high-bandwidth digital connector which was originally used to connect PCs and digital monitors. It is now the most widely used connection in the computer industry. They can also be used for your home theatre system as you can use the DVI cable for connecting projectors, monitors and advanced DVD players.
However HDMI has made things a lot easier for us all. You can use these when you want to hook up a HDMI system with that of a DVI. HDMI cables carry video, audio, and intercomponent operability commands (which are remote signals). When you connect up a HDMI with a HDMI cable (in particular the new HDMI 1.3) you get all the video performance that DVI has to offer up to and including 1080p.
Further to this HDMI offer even more advantages as you can deliver digital HD video, multi-channel audio, and control signals between various HDMI and DVI components. SO HDMI offers a brilliant solution of combining many functions in one cable rather than having that annoying spaghetti of cables that you would normally expect (and hate) for you home theatre.
HDMI 1.3 also offers high data speed and supports a new special format known as Deep Colour which can support 1.8 times as many colours as RGB. HDMI 1.3 also offers improved audio syncing so you have no more annoying lip sync problems. On top of this, the HDMI 1.3 supports the output of Dolby TrueHD and DTS-FD Master Audio streams and can be used with can be used with a number of products, including the latest DVD players and the Playstation 3
So this is just a basic run down of what HDMI cables have to offer. They really do make having a home theatre that bit more manageable and also allows you to get the best out of it!
Dan Bishop is an expert in electronic cables including HDMI cables for home theatres. For more information visit http://www.futureshop.co.uk
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