XD20 Installation and Operating Guide
Version 1.1
Appendix L. Technical Notes
L-3
Document #: 9301H264001.1
DTS Special Venue Timecode Offset
The DTS timecode offset setting is unique to the film format and the distance between the DDE
or DTS reader head and the picture aperture. The
calculations
below are used when determining
the timecode offset for special film speeds and formats. Notice that all the film speeds MUST be
divisible by 30.
35mm PRINTS
Film
Speed
Delay Setting
(in perfs per second)
[frames/sec X perfs/frame]
DTS Timecode
SMPTE Timecode
60
P/2 + 15
P/2
96
P/3.2 – 0
P/3.2
120
P/4 – 5
P/4
150
P/5 – 9
P/5
192
P/6.4 – 12.5
P/6.4
70mm PRINTS
Film Speed
(in perfs per second)
[frames/sec X perfs/frame]
Delay Setting
60
P/2
96
P/3.2
120
P/4
150
P/5
192
P/6.4
240
P/8
300
P/10
360
P/12
384
P/12.8
P
= Distance in
perfs from the
picture aperture
to the DDE or
DTS reader head
lens.
