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D-Bug & Automation Forum >> Hardware >> 50fps capture on PC!
http://d-bug.mooo.com/dbugforums/cgi-bin/yabb2/YaBB.pl?num=1221343164 Message started by ggn on 13.09.08 at 21:59:23 |
Title: 50fps capture on PC! Post by ggn on 13.09.08 at 21:59:23
Well, I didn't have any better ideas on how to name this thread, so let me describe the situation:
Lately I've been having some discussions with Christos about capturing video from the Ataris for his YouTube channel (http://www.youtube.com/user/CFalcon030/ if you don't know it yet :)). Mainly the problem was that he was getting interlacing artifacts or low frame rate capturing (25-30 fps). Acquiring a newer capturing card didn't solve his problems. At the same time I was tinkering with the idea of getting a capture card or a new monitor for my MegaSTE, with the later preferable as I don't have enough desk space to accomodate yet another monitor! Then I had some discussions with my brother about this and he borrowed a capture card so we could play around. As I don't have a composite cable atm my experiments were conducted with a good old RF cable. After a quick run of some programs we were disappointed to say the least:
In the end my brother had to take the card back to its rightful owner. By sheer luck though he discussed this with another friend who gave him an old capture card he wasn't using for free. Bringing this card home, I found out that it was one of the old Hauppage PCI cards that have the bt878/9 chip, which is famous for being very flexible with its programminng. Immediately I fired up DScaler, tuned the MegaSTE channel and was blown away - 50fps out of the box, no tinkering required! Hooray! One final hurdle had to be overcome though, and that was the PC monitor vertical refresh. This I had done in the past and is easily solvable, as long as you have a CRT monitor (;)). Download powerstrip, set a custom resolution with 50hz refresh rate, and presto! Flickering screen, but 50hz action. I swtiched fullscreen on in DScaler and never looked back since! Well, there are some things that can be improved, notably:
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