"What exactly HDTVis, and what does it mean for me?"
HDTV. You know you want one. Do it all. We heard that HTDV offers greater clarity that we are accustomed to seeing, smoother motion, richer colors, surround sound and the potential to improve performance by various pieces of equipment that we work together. But before you buy, it is helpful to understand the technology and its related issues.
First, but only to buy an HDTV and plug into a standard cable box gives you high-definition television. To watch high definition TV, you need three components: a source of HDTV channel HDTV and HDTV shows. Your source, the HDTV set, capable of displaying both the regular and HDTV, but the TV displayed on a standard analog HDTV sets can be disappointing. True, probably Show a little better on a set standard, but is still far from what we expect from HDTV. In addition, the big screen in particular fashion exaggerate flaws in the standard of programming, which makes them all.
As for the channel and the show, most major networks are now broadcasting many of their shows in prime time in high definition on their HD channels and various other networks are broadcast in high definition, as well. However, providers via cable and satellite which do not carry all available networks and the HD channels do not transmit all their content in HD, find your favorite program in high definition may be an approximate.
The good news is that this is going to change. The United States are currently undergoing conversion to digital television (DTV). July 1, 2006, all new TVs 25 inches or larger must contain both integrated DTV tuners that may receive high-definition programs simply by connecting an antenna, or must be "DTV ready." DTV-ready fashion requires a separate tuner (or cable box or satellite) to display high-definition programming. Subscribe to pay television (cable or satellite) with an HDTV-ready sets do not require the DTV tuner, but instead can watch HDTV using a set-top box that tunes HDTV channels.
HDTV sets that are "digital cable ready (DCR) can tune digital cable without a box, but they require a special cable, available from the cable provider.
On March 1, 2007, all new set of 13 inches or larger must have DTV tuners or be DTV-ready. However, although the FCC has mandated DTV tuner dates, it has no mandate that fashion sold must be capable of displaying HDTV resolutions. Consumers want vista HDTV the way is thought to be displayed are wise to make sure that a new set has this ability.
On February 17, 2009, over-the-air broadcast analogue switch off, and all transmissions will be DTV. After that date will not receive NTSC standard broadcasts in the air, but the Government may subsidize converter boxes for those can switch.
HDTV basics
HDTV refers to high-definition television (or, as some prefer, huge damn TV). It is not the only digital transmission format, but it is believed to be the best. Provides a resolution better than other standard digital television and display colors better than our current analog televisions that rely on the NTSC standard used in North America.
NTSC stands for National Television Systems Committee, a body that sets the standard in 1953, although video professionals are likely to say tongue in cheek, that the abbreviation means really never twice the same color. The standard NTSC is legendary for reception problems that leads to distortion of color-a problem that should not happen with HDTV.
Widescreen HDTV broadcasts pictures with higher detail and quality than analog TV, or other types of digital television (DTV). Superiority of HDTV stems from three factors: aspect ratio, resolution and frame rate.
A standard analog TV has an aspect ratio of 4: 3 (i.e. four units wide and 4 units high), giving it the form of "almost square" which is also common in computer monitors. However, with an aspect ratio of 16: 9 (16 units wide 9 and higher), HDTV provides a closer look at "cinema" for TV shows or films shot in widescreen. Complications arise because not all television is shot in widescreen. With standard or high definition 4: 3 programming, HDTV may display vertical black bars on both sides of the screen, it might stretch or enlarge the image.
Problems created by proportions have workarounds, but this requires that the TV or video source (i.e., satellite tuner, cable box or DVD player) has an aspect ratio control. To avoid disappointment, make sure that the television that you intend to buy offers this feature.
As regards the resolution or an image detail, HDTV offers more than twice the sharpness of the analog TV. Analog is the equivalent of a resolution of 640 x 480 pixels, which means 480 lines of detail visible. At its highest level, HDTV has a resolution almost six times better than-1, 920 x 1, 080 pixels or 1080 lines of detail visible.
HDTV is available in two different resolutions: 1, 080i and 720 p. The former has more lines and pixels, but the latter has a progressive-scan format that provides an image easier during movement. One is not necessarily better than the other only different. Format a third, 1 080 p, combines the best features of the two, but the content of programming is rare.
Frame rate refers to the number of times a set creates a complete picture on the screen every second. "As already mentioned, the frame rate ending in the" frame rate are interlaced and ending with "p" are generally progressive. With the progressive frame rate or progressive scans, the lines of each frame are drawn in sequence across the screen from left to right. In an interlaced frame rate or scanning, is drawn only every second line, and then the process is repeated to fill the gaps.
DTV frame rates vary from 24 frames per second to 60 frames per second. Therefore, a "1, 080i HDTV" has a resolution of 1, 920 x 1, 080 pixels and can display 60 interlaced frames per second.
Looking to the future
It is safe to predict that an HDTV become obsolete now bought so soon. It is also a prediction that, as time passes, they will go down even more in the price and that more and more content will be provided in HD format.
Some analysts expect to see increased content available in broadcasting in the air, the FCC mandated around DTV tuners. And it's definitely my prediction that HDTV will many of us tearing our hair out when we configure and make fine-tuning!
================================================
How to write the Business Plan, business proposals,
Package JV contracts, human resources, and more!
No cost ebook "Beginners Guide to e-commerce".
Business writing from Nightcats multimedia productions
http://www.nightcats.com
================================================