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upconversion confusion

jhvinaz
12-11-2005, 10:40 AM
Can someone explain to me about DVD "upconversion". More & more players are marketed with so-called "upconversion" capability, which if you believe the manufactuers' hype, provides near-hi def quality. But these units will support this feature only via digital outputs... that being the case, they will be used nearly exclusively with digital tv's, which, depending on the tv's native resolution, will be scaled to said native res format. In other words, my Samsung 720p tv must rescale a dvd player's output in order to display video imaging in its 720p format. Ditto for all other digital tv's. Presumably, furthermore, the rescaling algorithyms in these pricey digital tv's are optimized for viewing in their respective native res formats, said optimization being essentially equivalent to "upconversion". In other words, aren't digital tv's already peforming an "upconversion" function?

Chris Gerhard
12-11-2005, 01:20 PM
I have several upconverting players and if some manufacturers are claiming near HD, near really doesn't mean much. I like upconversion because it improves the picture. I also have HDTV sources and I would consider upscaled DVD something short of near HD. Still the subtle improvement is worthwhile for me. How much of an improvement you will see is dependent on you and your display. If you don't expect a night and day difference, you might be pleasantly surprised.

Yes, all HDTVs will scale DVD to the native resolution. In all cases I have seen, it is better to have the DVD player do it. I have a 720p LCD projector and a Sony KV-30XBR910. The 30" CRT offers so little improvement with an upscaling player that I don't care really. The 720p LCD projector results are much more apparent.

Chris

jhvinaz
12-11-2005, 08:57 PM
Chris:
Thanks for the input. I should have qualified my initial post by noting that the issue of upconversion being inherently performed by a digital tv would apply onty to fixed pixel display types. Yet, your response indicates that you see an improvement on your crt set, but not your fixed pixel LCD... is that correct?

And getting back to my question... isn't your lcd unit's rescaling performing the exact same function as your upconversion player? I.e., I would expect that your LCD tv would, in and of itself, provide "upconversion" just to display the dvd image.

I had a Samsung DVD upconversion unit... hooked it thru my Samsung DLP tv... saw a difference... subtle, but real. Problem was, the difference was really more interperative than dynamic. Edges were sharper but had more noise... could have just as easily lived with the softer image using a non-upconverting DVD player. Your thoughts?

Chris Gerhard
12-12-2005, 08:40 AM
Chris:
Thanks for the input. I should have qualified my initial post by noting that the issue of upconversion being inherently performed by a digital tv would apply onty to fixed pixel display types. Yet, your response indicates that you see an improvement on your crt set, but not your fixed pixel LCD... is that correct?

And getting back to my question... isn't your lcd unit's rescaling performing the exact same function as your upconversion player? I.e., I would expect that your LCD tv would, in and of itself, provide "upconversion" just to display the dvd image.

I had a Samsung DVD upconversion unit... hooked it thru my Samsung DLP tv... saw a difference... subtle, but real. Problem was, the difference was really more interperative than dynamic. Edges were sharper but had more noise... could have just as easily lived with the softer image using a non-upconverting DVD player. Your thoughts?

What I see is the 720p LCD projector has a more apparent improvement and the CRT much less and that is what I thought I said, I will reread my post. Of course only you can decide if upscaling results in a better picture on your display in your opinion. The difference isn't great in any event in my experience but worthwhile with the 720p LCD projector.

Chris

RSawdey
12-12-2005, 12:28 PM
Upconverting players are useful when your display (or projector) has a lousy upconversion chip... but if it's got a good one, an upconverting player is just redundant.

grmz13
12-13-2005, 04:42 PM
Well, I have a Sony KD34XS955 (direct-view CRT) and recently purchased a Sony NS70H, which is I guess one of the cheaper HDMI upconversion players out there ($150). While I wouldn't really call it near HD, it is a definite improvement from a regular progressive scan dvd player, mostly in sharpess and detail, which is a big deal to me. I'm sure higher quality (& priced) upconversion players give even better results. I've seen the Panasonic S77 ($250) highly recommended on other forums as well models from Denon. ($350 & up). I got the Sony because it seems that the HD DVD and Blu Ray era is just over the horizon.
And I agree that DVD players do a better job with the upconversion than the TVs themselves.