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Progressive Scanning Explained
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AfterDawn Addict
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1. May 2004 @ 16:22 |
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lol - showing/helping - its all good when u get the point across ;-)
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liquid51
Member
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12. May 2004 @ 14:37 |
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hey, here's question specifically related to the xbox's Progressive scanning.
It can output a Progressive scan signal while playing games, but not while playing movies. What with the, ah, "upgradability" of the xbox, it would seem there might be a way to integrate the Progressive scanning capabilities to include the dvd playback portion of the box. Or are these things entirely firmware controlled? Or do I have no earthly clue what I'm saying? gotta be one of those ;)
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AfterDawn Addict
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13. May 2004 @ 16:11 |
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Hi, Im afraid i dont know anything about how the Xbox uses Progressive scanning. I cant think why it only plays Games as Progressive scanning (though i know why this would be a good feature). The only thing that comes to mind is that if you are in the UK, some Progressive scanning DVD players only play back NTSC format in Progressive, so maybe you are playing PAL discs?
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liquid51
Member
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14. May 2004 @ 05:34 |
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good try, but no, I'm in the states; NTSC.
I guess the best thing for me to do would be to get a tv that can detect the signal and auto switch between Progressive and interlaced. As it is, being one of the less expensive HD monitors (still cost me a grand 2.5 years ago, and it's only 27"!), the dvd and dtv video source options share the same component input, but dvd is interlaced and dtv is Progressive, so I have to flop back and forth. oh well, can't have it all :P
Thanks for the reply though.
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Staff Member
2 product reviews
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14. May 2004 @ 11:11 |
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This is just a guess, but my thought is that it has to do with the fact that the Xbox is just a PC. With a game you are using PC hardware to run PC derivative software. Like your PC, the video signal is probably natively progressive, and then has to be converted to interlaced. In other words, no deinterlacing involved. NTSC video on a DVD, whether it starts as 23.976 progressive or 29.97 Interlaced, always at least appears interlaced to a DVD player. If there's no deinterlacing hardware required to output progressive for games, it makes sense that they wouldn't bother putting one in just for video.
This message has been edited since posting. Last time this message was edited on 14. May 2004 @ 11:13
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liquid51
Member
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16. May 2004 @ 17:51 |
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that makes sense too. in fact, that would explain why some games don't support Progressive scan. They're natively interlaced. hmm.
Thanks for the help.
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Staff Member
2 product reviews
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16. May 2004 @ 18:53 |
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No Problem. ;)
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pek_hui
Newbie
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17. June 2004 @ 07:32 |
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My philips 43" projection tv supports Progressive scan (stated in the manual) and i tried hooking up my PS2 to it and started up a game that supported Progressive output. The game displays without flickering on my screen...however, my screen is split into 2 (much like a picture in picture placed side by side) and both 'screens' are displaying the same pictures. There's are actual lines (colored...not sure if its blue or purple or green) separating the two 'screens'. Does this mean my TV does not support Progressive scan or something wrong with the ps2 or rather, some setting that needed adjusting? I'm not too sure, since I do not have a dvd player that supports Progressive output that I can use to see if the TV supports Progressive scan or not. Thanks for your help!
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liquid51
Member
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18. June 2004 @ 03:48 |
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that is exactly what mine displays when dvd input is selected. I have to switch to dtv input for Progressive scan. Maybe you need to switch inputs, or something like that.
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pek_hui
Newbie
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18. June 2004 @ 04:22 |
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i'm not sure how you go about doing tat...I've clicked around the channels as well as the tv settings, but not sure how to do that...any ideas or specific steps? Its a new tv and i've no idea really how to operate it..
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liquid51
Member
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19. June 2004 @ 06:33 |
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well, with mine it's simply a switch of the input source. Perhaps yours requires the Progressive scan to be enabled in some way. Not auto detecting. I'm no expert on every hdtv/monitor out there, I'm just guessing. Read up on the manual. It'll be somewhere in there for sure.
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spike1
Newbie
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26. July 2004 @ 15:03 |
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Is it right for me to assume that a prog scan signal is actually duplicated FULL frames??
I.E Film is actually 48Hz etc????
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