Hdmi vs Dvi, what is the difference? Which one is better? Are Dvi and Hdmi compatible? And of course, given the choice, which one should you use? The differences (or lack there of) may surprise you. Lets take a look at each of them then evaluate the differences.
Digital visual Interface (Dvi) is a digital acceptable introduced in 1999 by the Digital Display Working Group (Ddwg). It is designed primarily for carrying uncompressed digital video data to a display. Originally the display was a computer monitor but Dvi is now commonly used for television as well. One of the main areas of obscuring with Dvi is the number of different connectors available, which relate different functionality. There are three main relationship types for Dvi, Dvi-D (digital only), Dvi-A (analog only) and Dvi-I (digital & analog).
Hdmi Tv
High-Definition Multimedia Interface (Hdmi), released late in 2002, is an all-digital audio/video interface capable of transmitting uncompressed streams of data similar to Dvi. however Hdmi also provides the quality to carry audio signals, in increasing to video, as well as incorporating Hdcp, which is a Digital ownership management technology.
So what is the difference?
When seeing at the differences between Hdmi and Dvi we find they actually have more in base then differences. They both reserve digital transmission; they also are based on similar specifications since Hdmi was derived from the Dvi specification. There are two big differences:
Hdmi incorporates article security called High Definition article security (Hdcp).
Hdmi supports audio in increasing to digital video. (Dvi only supports digital video)
Are Dvi and Hdmi compatible?
Is Hdmi compatible with Dvi? Since Dvi is the predecessor to Hdmi, Hdmi and Dvi are same as far as video is concerned. Therefore, video backward compatibility exists. However, Dvi will not reserve digital audio. For example, if you have an older Dvi relationship on your source and a Hdmi connector on your display, a Hdmi to Dvi cable is all that is needed in order to view the video. A cut off audio cable (Toslink or Spdif) will be needed to carry the digital audio.
A Warning about Cable length
The Hdmi specification does not define a maximum cable length. Hdmi 1.3 defined two categories of cables: category 1 (standard or Hdtv) and category 2 (high-speed or greater than Hdtv) regardless, neither Hdmi or Dvi work well over distances greater then 15 feet. If you need a cable longer then 10 feet you will definitely want to reconsider top quality cables. For anything greater then 15 feet, some clubs offer amplifiers, equalizers and repeaters that can help bridge longer distances.
Which one should I use today?
If available, we recommend Hdmi. This is not because it is any better then Dvi, only because the commerce will heavily push Hdmi due to the Hdcp Digital ownership management technology. however you should not expect any incompatibility when intelligent from Dvi to Hdmi, therefore if you have Dvi already, stick with it until the next acceptable comes around. A miniature off topic, but still of relevance is that you may be able to get similar quality video by using your existing Component connections. A base misconception is that Component cannot carry Hdtv quality video, which is incorrect. Depending on the components in your ideas you may get the same or better carrying out with a Component relationship then with a Hdmi or Dvi connection.
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