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Old 11-22-2009, 05:10 PM
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zamar23 zamar23 is offline
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Join Date: Feb 5th, 2009
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Quote:
Originally Posted by zamar23 View Post
Local demand and supply of quality new STBs dropped drastically...AZBox pandemic has everything to do with true FTA fans desire to experiment with new challenging toys.
Ice, thanks for noting that. Though drop in FTA equipment demand affected every legit. STB importer in NA, thus delaying new STB introduction with advanced features like 4:2:2, etc. Similar concerns were voiced many times on this forum. I'm surprised, this is the only thing, you managed to notice about the report.

Btw, based on European forum reports, OpenSat is not a stranger to supporting "3-d party" coders, and digging into non-standard modulations, so I wouldn't be that idealistic about this brand.

For those who still wonder what 4:2:2 Chroma Subsampling is, http://en.wikipedia.org/wiki/4:2:2"][I]this[/ Wiki article will certainly help.

"Because of storage and transmission limitations, there is always a desire to reduce (or compress) the signal. Since the human visual system is much more sensitive to variations in brightness than color, a video system can be optimized by devoting more bandwidth to the luma component (usually denoted Y'), than to the color difference components Cb and Cr. The 4:2:2 Y'CbCr scheme for example requires two-thirds the bandwidth of (4:4:4) R'G'B'. This reduction results in almost no visual difference as perceived by the viewer.

Currently variants of 4:2:0 chroma configuration are found in all versions of MPEG, including MPEG-2 implementations such as DVD (although some profiles of MPEG-4 allow higher-quality sampling schemes such as 4:4:4)."

Last edited by zamar23; 11-23-2009 at 07:16 AM.
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