Jordan Manuel wrote on Wed, 03 February 2010 16:25 |
The problem I'm having is sending a laptop signal (VGA at 1024x768) and being able to send it to a composite signal for recording. Currently, an EXTRON VSC 500 is converting the high res signal to composite, unfortunately it looks awful. I spoke to an Extron Engineer and he told me that there wasn't a true solution. Any suggestions on getting this video conversion worked out? Thanks!
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Everybody who has fought this battle will tell you the same thing, which makes tremendous sense if you think about it.
When you convert 1024 to 768 video to 720 x 480 (DVD-V) or 640 x 480, or whatever even lower resolution you think your NTSC signal is, a tremendous amount of resolution is going to disappear.
No way can 720 x 480 (or worse) look as good as 1024 x 768 if your video is generated so it exploits 1024 x 768. The only way to make video look acceptable at lower resoltuions is to do your text and artwork with that lower resolution in mind.
If your final delivery resolution is standard TV, you will probably find that you will get the best results if you generate your text and graphics at that resolution. There's a lot of finageling with things like character generation that are modifed so that things look as good as possible at that low resoltuion. If you just take text generated at a higher resolution and downsample it, you probably won't get such good rsults as you would if you gnerated it at the final resolution.
At the very least, you need to use larger fonts than you would at 1024 x 768 if your final delivery resolution is regular SD TV.
Your Extron is a relatively high end product, but just because something costs more doesn't mean that its going to bypass the simple laws of optics.
If you want better compatibility between 1024 x 768 and TV, upgrade your TV system to HDTV.