DVI vs. HDMI

Written By admin On May 15th, 2010

DVI vs. HDMI, what is the difference? Which is better? DVI and HDMI are compatible? And of course, given the choice that you could use? The differences (or lack thereof) you may be surprised. Let each one then assessing the differences.

Digital Visual Interface (DVI) and one digital standard was established in 1999 by the Digital Display Working Group (DDWG). It is intended primarily for the implementation of digital video is compressed to a view.Originally the show was a computer screen, but DVI is commonly used for television. One of the main areas of confusion with the DVI is the number of different compounds available with different characteristics. There are three main types of DVI connection, DVI-D (digital only) DVI-A (analog) and DVI-I (digital and analog).

High-Definition Multimedia Interface (HDMI), released in 2002, is an all-digital audio / video interface cantransfer of compressed data streams such as DVI. HDMI also offers the possibility of acoustic signals, in addition to HDCP and video integration, a digital rights management technology.

So what's the difference?
Looking at the differences between HDMI and DVI, we find that they are actually more in common than differences. Both digital transmission, based on the same HDMI specification was givencomes from the DVI specification. There are two important differences:
HDMI processed for content protection called High Definition Content Protection (HDCP).
HDMI supports audio in addition to digital video. (DVI only supports digital video)

DVI and HDMI are compatible?
HDMI is compatible with DVI? Since DVI is the predecessor to HDMI, DVI and HDMI are identical regarding the video. Therefore, video backward compatibility exists. However, DVIsupport for digital audio. For example. If you have an older DVI source and an HDMI connection on your screen, a DVI-HDMI cable is all that is required to view this video a separate audio cable (TOSLINK or SPDIF) will need to transfer digital audio.

A notice about the length of the cable
The HDMI specification does not define the maximum length of cable. HDMI 1.3 defined two categories of cables: Category 1 (standard or HDTV) and Category 2 (High Speedor greater than HDTV), regardless, no HDMI or DVI works well over distances of over 15 meters. If you have a cable longer than 10 feet, you that high quality cables to consider. For just over 15 feet, some companies offer amplifiers, equalizers and repeaters that can help bridge longer distances.

What should I today?
If available, we recommend HDMI. Not because it is better than DVI, just becausewill bring strong pressure from management HDMI HDCP digital rights technology. But you can not expect a difference of displacement of the DVI-HDMI, DVI so if you already follow it until the next standard comes around. A bit 'off topic, but important is that you may be able to make the video quality similar to get rid of the links existing components. A common misconception is that the components can not transfer HD video quality, which is incorrect. Dependingcomponents of a system, you can get the same or better results with a component connection then with an HDMI or DVI connection.

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DVI vs. HDMI

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