What is HD?
We have all seen the ads on TV for the sexy flat screen TVs. But there is a bewildering array of different screen resolutions, a quantity of which are 'HD compatible' & a quantity of which are not. High Definition is defined as picture formats 1080i & 720p/60 & Dolby AC Surround Sound. In computer screen resolution terms they are speaking about 1366 x 720 (or the slightly lesser resolution of 1280) & what some manufacturers are touting as 'full HD' - 1920 x 1080. There is also the matter of interlaced versus progressive. Interlacing is where every other line is drawn first, & then the remaining lines are drawn next, which requires less bandwidth. This is suited to speedy moving video such as sport. Progressive draws all lines consecutively, & requires more bandwidth. At present (at least in the United Kingdom) nobody is broadcasting in 1080p, with most providers opting for either 1080i or 720p.
Another point worthy of mention is that most HD screens are widescreen (16:9) - this is an important consideration for companies thinking about the demonstration of program videos, which are often recorded in:3 aspect ratio.
How does that relate to my current computer then?
In case you have a PC screen or laptop computer able to displaying 1280x1024 resolution then it can displaying a 720p video. To be more specific, both the specification of the monitor AND the card require to be able to meet this resolution. Most cards have at least 256MB of RAM nowadays, which is plenty.
What can HD do for my business?
Aside from making standard video leap out of the screen (as you would expect), HD can be of benefit in case you require to demonstrate program on a massive screen - perhaps as a looped video on an LCD at a trade show. Let's say you currently have a corporate video on DVD, & you also desired to show a program demonstration as part of a looped demo - DVD is limited to 720x576 (or 480 in case you are left of the Atlantic), & it is interlaced. By generating (or recreating) your video in HD you can fundamentally overlay screenshots or video in their native resolution, which will look crisp & clear when played back.
What do I require to generate HD content?
First, a HD camcorder. Select with 'true 1080p resolution' wherever feasible. This will record at full 1920x1080 resolution. Next you will require suitable editing program, such as Adobe Premiere. This will let you import your video, edit it, & then recompile it in to your preferred output format. For those producing video content it is worth mentioning the High Definition animated backgrounds from Digital Juice. These beautifully rendered files can be colored to fit your corporate identity & can add a great deal of panache to what would otherwise look like an animated PowerPoint presentation.
Given that HD video has between &0 times the number of pixels over standard definition video, it stands to reason that you will require a PC with a bit more grunt in case you require not spend hours (or possibly days!) compiling your creations. Get as speedy a processor & as much RAM as you can afford! Also, HD literally EATS hard drive space, so throw as lots of hundred gigabytes as you can inside your case!
What do I require to output HD content?
The main issue is usually the resolution of the LCD, however the PC has to have processing & video power to decompress the video. For screens, if money is no object opt for the Sony X-Series, available in 40", 46" & 52". Only a few screens can come close to the screen's rendering engine, & all of them display at 1920x1080 through HDMI. While most PCs/laptops don't yet have an HDMI output, a DVI to HDMI adapter is available for a few pounds.
What else could I do with HD content?
HD ought to be used only as an element of your video promotion portfolio. You can add lower-res streaming versions to your net site with a link to download the high-def version. You can use lots of of the free screensavers available to queue up or more HD videos to play as soon as a PC is not in use - excellent for showroom or show PCs. Using a front finish such as the open source Media Portal provides a slick, skinable interface that you can further customize to fit your needs.
Conclusion
There is no doubt that adding HD content to your promotion arsenal adds kudos. When I initially wrote an article on HD in 2006 it was still in its infancy, but now it is mainstream & it takes small more work than standard definition. Even mobile rings can record HD video these days, & in case you already have a recent video editing suite you already have everything you require to dazzle your audience!
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