What is High-Definition Multi-media Interface (HDMI)?
Wednesday, May 28th, 2008
When working with projection technology, you might be interested in learning more about the various interfaces involved with your projector. For example, take the BenQ W5000 projector, which has a native resolution of 1920 x 1080, and 1,200 Lumens. This projector has a number of connections (i.e. BNC, Composite RCA, S-Video, etc.), but among them are two High-Definition Multi-media Interface (HDMI) ports, which is a digital cable that is used to transmit video and audio signals from your cable set top box, DVD player or satellite receiver to your projector, and has about 5 Gbps of available bandwidth.
HDMI is able to support enhanced and high-definition video formats such as: 480p, 720p, 1080i, and 1080p; in addition to standard formats like NTSC or PAL. There are various benefits to having HDMI, and they are the following: improved sound and video, reduction of cable clutter, and cost. Many home theater components use HDMI v1.3 now, which began in late 2007; this technology has a higher speed and deeper color. With projection technology, HDMI has the capabilities to be of great interest to home theater enthusiasts due to the various features included.
If this article has made you excited about HDMI cables, you might be wondering how much you should spend on a HDMI cable, or which one to purchase. Currently, 6 ft. cables can range from $15 to $200 Canadian. For cable selection, it’s always best to test out various cables to determine which one has been optimized for the technology. The folks over at Digital Home were nice enough to give us some stats; they connected a Blu-ray player and a DVD player to a Panasonic PT-AE1000 1080p projector. They tried three different cables and viewed a few hours of HD programming and it seemed there was no difference in picture quality.
[via Digital Home]









