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an Upscale question....

64.12.116.195
Posted on December 2, 2008 at 13:25:01
WernerLen@aol.com
Audiophile

Posts: 256
Location: Buffalo/NiagFalls
Joined: January 11, 2005
 My Cambridge Azur 540D DVD/CD player has a sticker on top, a reminder that this unit is capable, if the TV is able to, to show a Progressive (P)scan image, but you must press the "P" button on the remote to engage this feature.
Does this mean that in the "P" mode it will upscale my old DVD`s?, If not what is it doing in P mode?

It`s feeding a SONY 720P HD LCD TV.

 

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RE: an Upscale question...., posted on December 2, 2008 at 14:22:07
zane9
Audiophile

Posts: 107
Location: Toronto area
Joined: January 13, 2004
 Do you have the latest version of this player? The one with HDMI-out? This version will output a 720P signal, which will be displayed at the native resolution of your display (also 720p).

The original 540D("version 1") will also output a progressive scan signal, via component video connections (I have this one).

To be clear, progressive scan players will output in 480p (non interlaced), in addition to 480i (interlaced).So in 'P' mode, your player is sending a progressive scan output.

 

RE: an Upscale question....thanks Zane but, posted on December 2, 2008 at 14:41:43
WernerLen@aol.com
Audiophile

Posts: 256
Location: Buffalo/NiagFalls
Joined: January 11, 2005
 yes I know it`s putting out a "P" scanned picture but is it upscaling, I guess what I mean is, what upscaling means is it`s scanning every line on the first pass?
Or is upscaling more involved than that?
No I don`t have the HDMI-out version.

 

RE: an Upscale question....thanks Zane but, posted on December 2, 2008 at 16:44:05
zane9
Audiophile

Posts: 107
Location: Toronto area
Joined: January 13, 2004
 The 540D is not "upscaling". It is putting out a 480p (non-interlaced) signal only. Your 720p display may be capable of doing scaling on that incoming signal: have a look through its manual.

Yes, upscaling is somewhat more involved than you have written. There are excellent resources on the whole subject of a/v: check out AVS Forum for starters.

What make and model of display do you have?

 

RE: an Upscale question....thanks Zane but, posted on December 3, 2008 at 20:24:39
David Aiken
Audiophile

Posts: 5858
Location: Brisbane
Joined: September 25, 1999
 Upscaling is different to de-interlacing.

With standard definition DVD you have a 720 x 480 pixel image. In interlaced form each pair of "frames" contains half of the 480 lines, one frame containing the odd numbered lines and the other containing the even numbered ones. Progressive output simply merges those pairs of frames so that the full 480 line information is sent in one package.

Upscaling is conversion of the 720 x 480 image to one with another resolution such as your 720p display shows. That's 1280 x 720 pixels. Whether or not your player can upscale will depend on the player. Read the manual and check the output options.

You can de-interlace without upscaling but upscaling is usually done in conjunction with de-interlacing. The one exception would be if you need to feed a display a 1080i picture.

Your TV is capable of both de-interlacing and upscaling standard definition video. It has to be in order for it to be able to display standard definition off air TV broadcasts. You may get a better quality image if you let the TV do these processing options or you may get better results letting the player do one and the TV do the other. It all depends on which device has the best processing capability for each function. Try letting the player output a 480i signal and then swap the player output to 480p. Which looks better? Then, if the player can ouptut a 720 p signal, swap between that and whichever looked better of the 480i and 480p images. Once again choose the best looking picture. That's the one to stick with.

Players and TVs both vary considerably in the quality of the processors they use so spending a bit of time checking out the options can result in better picture quality.





David Aiken

 

David's got it right, posted on December 4, 2008 at 04:57:36
zane9
Audiophile

Posts: 107
Location: Toronto area
Joined: January 13, 2004
 The version of the 540D Werner owns will not upscale the source material (it will not output a 720p signal). Scaling must be done elsewhere in the chain...the likely candidate is the TV: it's native resolution is 720p. As always, read the manual or check the support section of the www site for the TV to get detailed info on what the set is capable of.

 

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