 
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
|
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
209.0.17.2
In Reply to: Aspect ratio horrors posted by Steve Schell on September 4, 2005 at 08:38:59:
As well as just deinterlacing to 480p, many DVD players these days can upsample the 480i data on the DVD to 1080i and 720p. The higher rate signals (1080i and 720p) will only be available from the Toshiba's HDMI output. If the signal is being upsampled, many displays will not give you aspect ratio control as the 1080i (1920x1080) and 720p (1280x720) formats are expected to be 16x9 (1.78:1), not 4x3 (1.33:1).Is this the way your friend is feeding the signal to his plasma? If so, try sending a 480p or 480i (if the Toshiba can output this format) signal via HDMI instead. Aspect ratio control should then be available.
Follow Ups:
Hi Joe,From what my friend told me, it seems you hit the nail on the head. Thanks.
One more question, if I may: do the upsampled 720p and 1020i signals offer truly increased resolution over the 480p or 480i? I haven't been back to my friend's house yet to have a look. "Deinterlacing" doesn't sound good, but as you can tell by now I haven't kept up with modern video technology- too much time spent with horns and compression drivers I guess.
The simple explanation is that deinterlacing combines the two fields of interlaced video into a frame. A progressive display shows the entire frame at one time, instead of showing the odd lines then the even lines (it's done quckly so your eye doesn't easily notice that it is only seeing half the information at a time) as an interlaced display does. A progressive display will deinterlace (think of this word as meaning "reconstructing") an interlaced signal before it is displayed and will just pass through a progressive signal (since it's already in the proper format for display) such as 480p and 720p.Whether an upscaling player provides any real advantage is the subject of much debate, but here's the real (potential) advantage. Some HD displays, even ones that cost a fortune, have poor scalers and feeding a 720x480 signal to one of them just results in an OK picture when the image is scaled to the displays native resolution (ie; 1280x720, 1366x768, 1920x1080, etc). However, if you have a player that upscales and its scaler is better than the one in the display, you will see a benefit in the form of an improved picture (but it will usually be subtle, not a night/day difference).
This post is made possible by the generous support of people like you and our sponsors:
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
