With this era of fast internet which broadband TV enjoyable, I mean watching TV online with fast Internet, still not fully converted to watching clear Hi-Def with high image quality on your computer system. With an HD broadcast of a digital satellite transmission assume that your TV is displayed with the compression technology, sharpest picture imaginable. But the truth is that Hi-Def doesn't always mean high quality.
First, a short explanation of what High-Definition television (HI-DEFTV): it is a system of digital television broadcasts with a higher resolution than traditional television systems (SDTV). The main difference here is that eligible HI-DEF is simply having a bunch more pixels. This means literary the more pixels the final more high quality pictures. So many digital satellite broadcasts vary in their ' high definition ' image quality.
There is no real regulation on high-definition image quality. I have a random search to verify this and to a large extent discovered that it is open. This is part of the reason why various HI-DEF stations often wildly different levels of image quality that from one moment to the next change. This pitch so content producers, broadcasters and cable and satellite providers who are engaged in a constant tug-of-war about bandwidth and video quality, with no hard metrics to even define what looks acceptable.
But for your TV or PC screen to meet HI-DEF must either 720 progressively scanned lines of horizontal pixels (720 p), 1080 lines interlaced pixels (1080i) or 1080 lines of progressively scanned pixels (1080p, which no one even broadcasts.) But there is a whole lot more the quality of digital television than the number of pixels present. Most TV and Pc this test will pass, but will not be eligible for the most high-definition broadcasts of this competitive stations and cable and satellite providers are
Another important factor in determining image quality bitrate according to a source is, or how many video and audio data down the pipe for each program is delivered. The technology behind digital television depends largely on digital compression and indicates that the ATSC Digital TV use the standard MPEG-2 compression, which is also used by DVDs, although some satellite channels use the more efficient MPEG-4 Advanced video coding (AVC) standard.
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About the author: Julius Ozoh is a systems analyst, Chief Consultant for an IT consulting firm and EzineArticles Expert author. He has more than 15 years experience in Windows management, Networking, broadband internet technologies, Web Portal development and applications.
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