Hi Pascal.

11-Nov-03 16:45:20, Pascal Schmidt wrote to Charles Angelich


 PS> Hi Charles! :-)

 CA>> I think I was told that PAL has advantages over NTSC but I don't
 CA>> recall what they are/were?

 PS> More signal bandwith used for color information. NTSC is more
 PS> likely to have flickering colors. The number of half-frames per
 PS> second is also different, but I don't remember the exact numbers.

50 half-frames per second

back when TVs were mechanical they used synchropnous motors to drive the
scanning mirrors, hence 60Hz vertical rate in USA and 50Hz in Europe etc...

 PS> When digitizing video, NTSC usually ends up being 352x240 pixels
 PS> and PAL ends up being 352x264 pixels

fair enough, not that there's a fixed number of pixels per line in analogue

I thought there  were more lines than that... up rpound 600 somewhere?
but interlaced which could prove challenging to handle in a frame-based
format like AVI...

 -=> Bye <=-

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