Hi, everyone. Thanks to the informativeness of this great forum, I'll soon be making a projector based around the BenQ FP557s. But since this has VGA input only with a native resolution, some other means would have to be used to view the RGB image output from a TV.
From looking around, I've found a couple of options.
There's the Viewsonic VB50HRTV, which is a standalone video processor, that converts s-video and composite into 1024x768.
Since I'm planning on upgrading my computer's video card anyways, I could buy an ATI 9700 All In Wonder, which captures at 720x480, but can stretch the image to any size, at least AFAIK.
Which one of these options can be expected to provide the highest image quality? What do you guys use to accomplish this?
From looking around, I've found a couple of options.
There's the Viewsonic VB50HRTV, which is a standalone video processor, that converts s-video and composite into 1024x768.
Since I'm planning on upgrading my computer's video card anyways, I could buy an ATI 9700 All In Wonder, which captures at 720x480, but can stretch the image to any size, at least AFAIK.
Which one of these options can be expected to provide the highest image quality? What do you guys use to accomplish this?
I have the ATI 9700 AIW and it might be my cable quality or just watching TV on a high res monitor vs. a low res TV, but really the TV quality is pretty poor and fuzzy using the tuner. Unfortunately right now all I'm using is the RCA (i know i know) input for my PS2 so I can't input on how the other inputs are, I suppose I can give the s-video a try.. I haven't been too fussy since I haven't made my projector yet and no real reason to display svideo on my monitor when I have a 24" Sony FD Wega right next to me as well.
You can stretch the image though, like it wont change your screen resolution if you want to watch TV at 1280x1024.. however the quality does suffer at such a size 🙄
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You can stretch the image though, like it wont change your screen resolution if you want to watch TV at 1280x1024.. however the quality does suffer at such a size 🙄
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This may be a stupid question, but since the video that needs to be captured is analog, doesn't it technically not even have a resolution? And in this case, would S-Video really be much sharper than composite?
Yes. Your sort of right. The AIW, or the Viewsonic, does capture an NTSC and/or PAL signal, but the 720x480 thing is what it records it to on the harddrive. There is no varience between resolutions for NTSC signals. NTSC is alywas 525 lines (about 475 viewable).
NTSC brodcasts (from a TV studio) come from a digital tape (D1, D2, or Digital Betacam). These tapes store the video information digitally at 720x486 (NTSC). DVDs, as well as DV tapes (like the prosumer camcorders) are stored on the disc/tape at 720x480. But when the tape deck spits out the analog signal, it is 525 lines at a specific frequency.
Point is yes, both products will do what you want. You could also look into Hauppagge's WinTV card.
NTSC brodcasts (from a TV studio) come from a digital tape (D1, D2, or Digital Betacam). These tapes store the video information digitally at 720x486 (NTSC). DVDs, as well as DV tapes (like the prosumer camcorders) are stored on the disc/tape at 720x480. But when the tape deck spits out the analog signal, it is 525 lines at a specific frequency.
Point is yes, both products will do what you want. You could also look into Hauppagge's WinTV card.
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