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Originally Posted by Paul Stenning
Could the converted data be sent out on USB2, FireWire, Ethernet, SCSI or something and then converted to the required video signal by a fast D-A converter? This may be easier than trying to pursuade a graphics card to do something it really doesn't want to do?
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I tried looking into this a bit today, and while for instance USB 2.0 is plenty fast, there appears to be no generally available and sufficiently fast D/A devices out there. Most of the modern busses would be quite good enough, but we still need to come up with a generally available yet inexpensive device to use in the end. There almost certainly are some ££££ devices for realtime data acquisition and generation for, say, SCSI or simply PCI. But the price kills that idea.
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Originally Posted by yagosaga
Gary Milliard has programmed a software converter for AVI videos into the NBTVA 32 line format. See: http://www4.tpgi.com.au/users/gmillard/nbtv.htm
Perhaps there might be only a small step for converting videos into 405 line format. Output via USB seems to be the most promising way. |
I'm afraid that will not work, as the limiting factor for Gary's program is that he uses the generic audio interface inside modern PCs. That is enough to simulate mechanical TV standards, but audio cards are about a factor of 100 too slow for 405 line TV.
Does anyone have a link to a page, which describes the 405 video standard in detail, please?
Best regards
Frank N.