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Upscaling to Hi Def
charles wrote:
In article .com, DVDfever Dom wrote: Of course, if the TV bosses were bothered about a show they could make the necessary calls to negotiate further repeats even though that would mean drawing up a new contract. And, of course, they just can't be bothered. Not always. Stratford Johns, who appeared in the 60s & 70s in 'Z-Cars', 'Softly, Softly' and other series, refused to allow repeats of programmes he appeared in. He, apparently, would prefer to appear in something else, as far as the money was concerned. The may well be others like him. Does the veto expire when the actor dies? I've noticed "Yes Minister" being shown regularly only after the deaths of Nigel Hawthorn and Paul Eddington. Or was that just coincidence? -- Peter |
Upscaling to Hi Def
"Dave Farrance" wrote in message ... There's only one or two HD-ready *CRT* TVs, and I've not seen any on the High Street, so almost all HD-ready TVs being sold at the moment are flat-panels. The ones that I've seen don't seem to have 720 or 1080 lines, but some other number like 768 or 1024 lines. When showing a standard definition source, a flat-panel will format-convert the source to its native definition. But when you take advantage of the upscaling option of one of these DVD players, the source is format-converted to 720 or 1080 lines, and then format-converted again by the flat-panel to its native definition - two format conversions, each blurring the image slightly. It doesn't make sense. The upscaling DVD players have HDMI digital outputs - so that's a real advantage, if you can use it - but it'd be better to leave the player set to standard-definition output. I would have agreed that this arguement makes sense. However, having recently bought an upscaling DVD I am surprised how much better the PQ is when fed a 720p upscaled picture from the DVD compared to a "normal" 576p one. This is down to the quality of the scaler built into the DVD compared to the one in the TV. On my HD LCD it doesn't scale the 720p image to fit the 768 pixels, but leaves a 24 pixel black border on each side. Whereas if I feed it a 576p source the TV has to upscale it to 720 pixels. It is clear my DVD does a better job of scaling than the TV. This wont always be the case of course, depending on what DVD and what TV you have. Loz |
Upscaling to Hi Def
In article ,
Peter Hayes wrote: charles wrote: In article .com, DVDfever Dom wrote: Of course, if the TV bosses were bothered about a show they could make the necessary calls to negotiate further repeats even though that would mean drawing up a new contract. And, of course, they just can't be bothered. Not always. Stratford Johns, who appeared in the 60s & 70s in 'Z-Cars', 'Softly, Softly' and other series, refused to allow repeats of programmes he appeared in. He, apparently, would prefer to appear in something else, as far as the money was concerned. The may well be others like him. Does the veto expire when the actor dies? I've noticed "Yes Minister" being shown regularly only after the deaths of Nigel Hawthorn and Paul Eddington. Or was that just coincidence? perhaps their heirs needed the money ;-) -- From KT24 - in drought-ridden Surrey Using a RISC OS5 computer |
Upscaling to Hi Def
"Dave Farrance" wrote in message ... "Ed" wrote: On Sky news they just showed a Denon amplifer thing that supposedly upscales DVDs and other sources to Hi Def quality. What does it really do? Or rather, what does it do to the pictures coming from a standard dvd player to supposedly make them HD There's only one or two HD-ready *CRT* TVs, and I've not seen any on the High Street, so almost all HD-ready TVs being sold at the moment are flat-panels. The ones that I've seen don't seem to have 720 or 1080 lines, but some other number like 768 or 1024 lines. When showing a standard definition source, a flat-panel will format-convert the source to its native definition. But when you take advantage of the upscaling option of one of these DVD players, the source is format-converted to 720 or 1080 lines, and then format-converted again by the flat-panel to its native definition - two format conversions, each blurring the image slightly. It doesn't make sense. The upscaling DVD players have HDMI digital outputs - so that's a real advantage, if you can use it - but it'd be better to leave the player set to standard-definition output. -- Dave Farrance Just my two pence worth. I'm far too poor to afford a fancy new panel, but a friend of mine got a 37" or 39" HDTV plasma last year, and when I went around so he could show off, it looked frankly, bloody terrible... DVDs looking blocky and dirty. He went and bought a DVD player with an inbuilt upscaler and it made the world of difference. DVDs look great again now. As has been mentioned above, I guess it depends on the panel, and how good the onboard upscaler is. I guess if you buy a panel and realise SD looks poor, it would be better to buy a standalone upscaler so you could run Digital TV/DVD/Games consoles through it too.... or just had a thought.... do some of these DVD players have scart passthrough, which could also benefit from the upscaler? I guess not, as they just, as the name implies, pass through, but would be great if they did! V1N. |
Upscaling to Hi Def
loz wrote:
It is clear my DVD does a better job of scaling than the TV. And I don't use either the TV or the DVD to do the scaling. I use an external scaler, a Lumagen, and it makes pretty much everything look fantastic on my HiDef Ready DLP RPTV. Some things, depending on the original quality, look near enough as makes no difference as good as the true HiDef demos you see running in Dixons and Currys, coming off custom PCs. Then again, the cheapest Lumagen will set you back near a £1000, and more if you get it professionally calibrated to your displays. And the latest ones are set for about four grand when they're released in the near future. Which is probably more than your TV and DVD combined, so not for everyone, probably. Regards Mark |
Upscaling to Hi Def
Matt Overton wrote:
Well, not really true, that's a bit unfair when you consider the scale of budgets vs Audience ratings. Plus the Americans are a bit mental and spend money shooting everthing on film whether they need to or not. Even sitcoms are done on 35mm, never mind 16 or super 16! I don't think the BBC could justify spending the licence fee doing everthing on film. Is the cost difference between 16mm and 35mm so great? Compared to the cost of the entire production? Mind you, when watching in SD there's little to complain about in the picture quality of most current BBC drama (in terms of film noise and grain). Some older stuff is really shocking. Outdoor film inserts on studio (VT) comedy are often scratchy, grainy, damaged, and flickery. I know telecine has improved, but some things look like they were dropped on the floor, danced on, and _then_ telecinied! For entire dramas on film, it's quite apparent (usually on ITV, but often BBC Four) when they've re-transferred film stock recently compared to using an old composite transfer from a couple of decades ago. I wonder how often the original film doesn't exist? Or is it just cost that prevents a new transfer? I suppose the word "repeats" has a bad name, because when you mention it over here it stirs memories of Dads Army, Vicar of Dibley and Only Fools and horses again and again and again and again....... 'nowt wrong with that! I'm amazed how well some episodes of Porridge and (in a tamer way) Dad's Army stand up - there's lots of similar aged comedy that doesn't work anymore, which justifies (to me) why some things are repeated endlessly, while others never are. There are thousands of progs out there which should be repeated and never even make it to UK Gold. Where's the good stuff, wasted sitting in a dusty archive because to bring it out would upset the repeat percentages, especially against the audience ratings they would be expected to get. See above. or provide an example? Cheers, David. |
Upscaling to Hi Def
"loz" wrote:
"Dave Farrance" wrote: But when you take advantage of the upscaling option of one of these DVD players, the source is format-converted to 720 or 1080 lines, and then format-converted again by the flat-panel to its native definition - two format conversions, each blurring the image slightly. I would have agreed that this arguement makes sense. However, having recently bought an upscaling DVD I am surprised how much better the PQ is when fed a 720p upscaled picture from the DVD compared to a "normal" 576p one. This is down to the quality of the scaler built into the DVD compared to the one in the TV. I guess so. Two replies say that the upscaler gives a better result so practice trumps theory - but I am surprised. You still have to use the TV's upscaling as well. On my HD LCD it doesn't scale the 720p image to fit the 768 pixels, but leaves a 24 pixel black border on each side. Hang on. 768 is the number of lines. Do you mean that it leaves a gap at the top and bottom? If not, then the TV is upscaling. -- Dave Farrance |
Upscaling to Hi Def
"Dave Farrance" wrote in message ... "loz" wrote: "Dave Farrance" wrote: But when you take advantage of the upscaling option of one of these DVD players, the source is format-converted to 720 or 1080 lines, and then format-converted again by the flat-panel to its native definition - two format conversions, each blurring the image slightly. I would have agreed that this arguement makes sense. However, having recently bought an upscaling DVD I am surprised how much better the PQ is when fed a 720p upscaled picture from the DVD compared to a "normal" 576p one. This is down to the quality of the scaler built into the DVD compared to the one in the TV. I guess so. Two replies say that the upscaler gives a better result so practice trumps theory - but I am surprised. You still have to use the TV's upscaling as well. On my HD LCD it doesn't scale the 720p image to fit the 768 pixels, but leaves a 24 pixel black border on each side. Hang on. 768 is the number of lines. Do you mean that it leaves a gap at the top and bottom? If not, then the TV is upscaling. Yes. It leaves a gap. |
Upscaling to Hi Def
I see. So that's how it's done.
The 720p digital stream resolution is defined as 1280x720. But HD-Ready displays with a similar resolution are actually either 15:9 1280x768 displays or 16:9 1366x768 displays. So in order to display 720p, the 15:9 displays put black bars at the top and bottom, and the 16:9 displays put a black frame all the way around wasting 12% of the display. So I do wonder why the heck they didn't make the displays 1280x720? -- Dave Farrance |
Upscaling to Hi Def
"Dave Farrance" wrote in message ... I see. So that's how it's done. The 720p digital stream resolution is defined as 1280x720. But HD-Ready displays with a similar resolution are actually either 15:9 1280x768 displays or 16:9 1366x768 displays. So in order to display 720p, the 15:9 displays put black bars at the top and bottom, and the 16:9 displays put a black frame all the way around wasting 12% of the display. So I do wonder why the heck they didn't make the displays 1280x720? Because they use the same panels with PCs where 768 is a common resolution. Saves making 2 resolutions of panels. Loz |
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