18 Dec
2004
18 Dec
'04
1:24 a.m.
Great. Btw: does anyone know exactly what framerate non
drop 30 fps
MTC has? Should i really send with 29.97 fps?
For NTSC, yes. The frame rate has to do with the frequency used by the AC power grid. In
the US, the frequency is a little under 60HZ (59.94HZ). TVs were designed so that each
scan would coincide with the AC cycle. Since the TV signal is interlaced, it scans twice
for each frame. That's how we get the frame rate of 29.97. In Europe, the power grid
configuration is so much better, the power output is more consistant and the frequency
drifts less. It also runs at 50HZ, hence the PAL framerate of 25fps.
Just a bit of useless trivia for you. :)
-Reuben