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Article #144

Re: Videoblaster - what is he able to do?

#144
From: Christer Olsson
Date: Mon, 10 Aug 1992 13:39
57 lines
2907 bytes
In article <1LW56NP@zelator.in-berlin.de>, leo@zelator.in-berlin.de (Stefan Hartmann) writes:
|> In <1992Aug8.154310.11192@gdunix.gd.chalmers.se> co@bildsun1.mednet.gu.se (Christer Olsson) writes:
|> 

|> >I haven't tested all possible resolutions yet. But the software supports
|> >resolutions up to 1000 pixels I think. 
|> 
|> Hmm, studio quality digital PAL video is just 768x576 in screen size,
|> so 1000 pixels is just not possible with such a low cost product !
|> 

The software seems capable to make pictures larger than 768 pixels by resampling. I.e, the
resulting picturefile can be larger than the video source. 

But it seems the Videoblaster also can be configured to accept some other 
video sources with wider bandwidth but I can't test it because I don't have
any composite video source with other bandwidths than PAL and NTSC.

|> Please can you look into the manual ?

|> Is the pic YUV coded or RGB digitized ?
|> 
RGB I think.

|> Does it also support 38 Khz and up to 50 or 64 Khz horizontal scanning
|> frequencies from the SVGA card ?

I haven`t tested it yet. The manual says nothing.

|> >You can use the most VGA-cards. But it must have a feature-connector. 
|> >A VESA-compatible Super-VGA card is recommended. 
|> 
|> 
|> How do you connect it ? 
|> Does the SVGA output go via the feature connector to the Video Blaster
|> ?
|> And then do you connect your SVGA monitor to the video blaster card ?

The VGA-card connects to the videoblaster both with a cable from the 
VGA-output and the feature cable into the videoblaster. The monitor connects
directly to the videoblaster.


|> Does it also work under win3.1 in a 800x600x256 windows screen size ?
|> (with 70 Hz image frequency (49 Khz horizontal scanning frequency)
|> 
|> Does it also work with 1024x768x256 win3.1 screen size ?

The Readme-file on the diskette says videoblaster only supports 640*480, 
but support for 800*600 also delivered, but it's not tested on all 
VGA-cards. 
 
|> >Yes, you can watch TV in Windows if you want it. 
|> 
|> What resolution has the TV-window (x-y-screen size)?

It's selectable from a very little box (bad quality) to the whole screen by pixels.
Technical Details
Message-ID: <1992Aug10.133949.1760@gdunix.gd.chalmers.se>
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References: <1992Aug7.220047.3020@lrs.e-technik.uni-erlangen.de> <1992Aug8.154310.11192@gdunix.gd.chalmers.se> <1LW56NP@zelator.in-berlin.de>

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Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!bloom-beacon!eru.mt.luth.se!lunic!sunic!chalmers.se!gd-news!bildsun1!co
From: co@bildsun1.mednet.gu.se (Christer Olsson)
Newsgroups: comp.multimedia
Subject: Re: Videoblaster - what is he able to do?
Message-ID: <1992Aug10.133949.1760@gdunix.gd.chalmers.se>
Date: 10 Aug 92 13:39:49 GMT
References: <1992Aug7.220047.3020@lrs.e-technik.uni-erlangen.de> <1992Aug8.154310.11192@gdunix.gd.chalmers.se> <1LW56NP@zelator.in-berlin.de>
Sender: usenet@gdunix.gd.chalmers.se (USENET News System)
Reply-To: co@bildsun1.mednet.gu.se (Christer Olsson)
Organization: MedNet, University of Gothenburg
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