From: bryan mckay (email suppressed)
Date: Thu Feb 04 2010 - 18:35:38 PST
It gets more complicated now though as lots of TVs are capable of 24
frame progressive playback, thus avoiding the 3:2 pulldown described.
You can author a 24 frame disc, for instance, and compatible
televisions will deal with it appropriately. A digital file can also
be played back at any frame rate on your monitor, through a projector,
etc. Unless you're preparing to output for broadcast TV, these
standards matter less now.
On Feb 4, 2010, at 7:54 PM, Bower, Sara wrote:
> NTSC is far more complex with 3:2 pull down being required, but the
> pattern will change with film speed and can make some speeds to give
> a juddery effect. This is form of spatial and temporal aliasing. It
> is a combinations of film speed and the speed the image is changing
> across the frame. To this end the contents of the film will effect
> the smoothness of the varispeed operation.
__________________________________________________________________
For info on FrameWorks, contact Pip Chodorov at <email suppressed>.