[Tig] HDCAM SR 23.976 to PAL Downconvert Question
Agustin Goya | Wancamp
agustingoya at wancamp.com.ar
Mon Aug 4 15:30:32 BST 2008
Hi TIGers!We've been asked to do our first HDCAM SR delivery for a big
studio. They sent us all the specs for each SD master, PAL and NTSC, but
there's one spec I find confusing.
On PAL Downconverts coming from HDCAM SR @ 23.976fps, they ask for:
Video Input= 1920X 1080 (23.98 psf)
Video Output= 720 X 576I 23.98 HZ (?????)
*See chart for horizontal & vertical zooms & crops
Audio= (same as NTSC)
Set-up= T.C. Input Ext. = On
Output Ext. LTC= Off
D.F. Mode Auto
What I don't understand is the Video Output frequency. If I'm not mistaken
2:2 pulldown will make video playback 4.1% faster, so there's no way the
Video Output could be 23.98HZ.
Any Help with this will be very appreciated.
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