🚀 go-pugleaf

In <1992Aug10.230340.11246@ryn.mro4.dec.com> chungh@armory.enet.dec.com (Henry Chung) writes:


>I just got my Vblaster and have been playing with it for several days.
>The quality is Ok, a lot of room for improvement. (I guess I can't 
>complain too much for $345).  It does support JPEG. (It was added at 
>the last minute.  The info was not in the manual, but it's in the
>readme file. )  The Vblaster has 4 Video input connectors and 2 audio
>connectors. 

Does it have also Y/C (S-VHS) inputs ?


There are 2  25pin connectors for connecting the Vblaster to 
>the video card and to the monitor.  The software fully supports windows 3.0
>and windows 3.1.  Creative Lab only recommends 640x480 resolution, but
>it does provide limited support for 800x600 for certain Video cards.
>(I am using 800x600 with my Diamond Speedstar Plus with on problem.

Great, I have the same, so it should work in 800x600 also for me.

What horizontal scaning frequency did you use in 800x600 ?
Do you get 70 Hz image frequency ? (at 800x600)


>One thing that really bothers me is that it does not work with
>system with more than 15M of memory. (I had 16 M  memeory on my system,
>to make Vblaster happy, I had to take out some of the SIMMs.  Since my
>motherboard supports only 4M or 16M total memory with 4M simms, I only
>have 4M memory installed.)

This sounds not too "fresh" ! :-(



The software is pretty good.  You
>can change the windows size up to the size of your monitor.  You can
>freeze/digitalize video images and save them in several different formats.
>The image quality is not as sharp as I expected.  Some noticable noise
>especially near the edges of the window.  

What about the digitizing of full frames or only fields ? (interlace
fields grabed or only one field ?)

Do you see motion artifacts, when an object is moving in the video
source ? (this corespondens to grabbing the 2 interlaced fields and
scanconverting them to the 31-35 khz horizontal scaning frequency)

Hope to hear some more test reports, cause the video blaster seems to
be the cheapest live video window overlay board for the PC right now.

Best regards Stefan Hartmann.
email to: leo@zelator.in-berlin.de

-- 
 
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*  Stefan Hartmann       This is how to contact me:         *
*  EMAIL: leo@zelator.in-berlin.de                          *
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