Phoenix cards = stuttering

[ajmaudio]

Well I am very familiar with your issue. This issue arises as a result of the difference in frame rates between your capture card and your video card. Assuming NTSC you are capturing at 29.97 fps but if your graphics card is outputting some variant of 60hz ...say 60.02hz... as you can see these two numbers dont divide into eachother. So every so often things dont line up and you see frames missing or two frames or whatever. You can lessen this by putzing with your playback rate in catalyst. (29.85. 29.87 etc etc) In my experience this has not completely fixed this issue but will change its severity and frequency. As far as I can tell the only solution is to force your graphics card to output say 59.94hz in our example so that things line up. The Dvi Parrot may be able to do this. I am looking into this. Perhaps some more people will chime in on your post. I have posted about this several times in the past. Richard has been most helpfull.

[Leif]

Well I am very familiar with your issue. This issue arises as a result of the difference in frame rates between your capture card and your video card. Assuming NTSC you are capturing at 29.97 fps but if your graphics card is outputting some variant of 60hz ...say 60.02hz... as you can see these two numbers dont divide into eachother. So every so often things dont line up and you see frames missing or two frames or whatever. You can lessen this by putzing with your playback rate in catalyst. (29.85. 29.87 etc etc) In my experience this has not completely fixed this issue but will change its severity and frequency. As far as I can tell the only solution is to force your graphics card to output say 59.94hz in our example so that things line up. The Dvi Parrot may be able to do this. I am looking into this. Perhaps some more people will chime in on your post. I have posted about this several times in the past. Richard has been most helpfull.

Thanks for the ideas. I will definitely try messing with the output frequency.