Thursday, 9 February 2012

Learn More About HDMI To DVI Cable

By Vinjent James


HDTV is the latest in the technological innovations within the television space. The earlier break through was the LCD and other digital displays. With each kind of display the technology needed to support it changed. While LCD used the DVI or digital video interface technology the modern HDTVs use the High definition multimedia interface or HDMI technology. With products of both technology available in the market today, the ability to interconnect them is invaluable and this is just where HDMI to DVI cable becomes so important.

Before we get into the cable itself let us first understand some details about the two technologies under consideration. A brief overview would help us understand how effective this cable can really be.

Digital video Interface or DVI was a industry standard developed to display high quality pictures on digital screens. This is quite different from the traditional VGA technology that used a picture tube. In the recent past we had LCD flat screen displays that used this DVI technology.

The main aspect of the DVI technology was, as the name suggests, it was a purely video interface. So you could only transmit digital video signals over this interface. You needed a separate audio interface for the audio portion.

HDMI or High Definition Multimedia Interface was a big improvement over DVI. To start with it improved the quality of picture being displayed by increasing the pixel count per frame. This meant that you would get high definition picture on the screen.Secondly, it was no more a video interface but a multimedia interface. This meant that the signal was a composite audio video signal. This allowed a lot of flexibility in the kind of sources that could use this cable to transmit information.

With the multimedia support, HDMI lent itself well to HDTV receivers, DVDs playing HD pictures and even gaming consoles. Now when we look back that the HDTV to DVI cable you can easily see why a single cable is sufficient to transmit the video signals. The only point though is that with this cable you can one send video signals. As DVI does not support audio, one end of this cable cannot send or receive audio signals.

However, there is one inherent limitation that we need to honour in this setup. DVI signals cannot carry audio signal. This means that even if you use this HDMI to DVI cable you can only get eh video signal. You would need a separate connection for the audio. When you compare this limitation with incompatible screen and source interfaces you would have to agree that this is a great bargain.




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