User´s Guide
71
A new feature in Premiere 5.1 is the ability of displaying the time code of
your clip and monitor windows in different ways, some of which may be
confusing. In turn, this may lead to errors if you attempt to calibrate your
time code discrepancy or to manually enter a batch capture list. Premiere 5.1
allows you to adapt the time format of the monitor or clip window.
However, this does not affect the video recording window. This is a general
setting that does not change automatically when you load a clip with a
different format. The fact that the time base of a clip can also be displayed
incorrectly makes it difficult to determine the time code format of a clip. If
you wish to determine the actual time code format of a clip, you must call up
the Properties for command from the File menu while the clip in question is
displayed in the monitor or the clip window. You will find further
information on this topic in the Adobe Premiere 5.1 manual.
DV devices use a Drop Frame or DF time code (NTSC only). It cannot be
set to a specific default, i.e. new tapes always begin at 00:00:00:00.
Nevertheless, this is exact and returns clear values for single frames. When
working with DV material, select “Drop-frame time code” in the Premiere
project settings.
NTSC video (the US standard) is based on 30 frames per second almost. The
exact frame rate is 29.97 frames per second, which corresponds to an error
of .3% per second. This is why video engineers developed the DF system,
where 2 frame numbers each minute – with the exception of each 10th
minute – will be skipped. Actual video frames will not be skipped, just the
numbers in time code used to count them. One important reason for the use
of the DF time code is that the timing of long videos will be more precise.
In figures, it looks like the following:
Non Drop
Drop
00:01:00;00
⇒
00:01:00;02
00:01:00;01
⇒
00:01:00;03
Please note that this applies only to every 1
st
, 2
nd
, 3
rd
, 4
th
, 5
th
, 6
th
, 7
th
, 8
th
and
9
th
minute, but not to the 10
th
, 20
th
, 30
th
, 40
th
, 50
th
or the 0 minute.
DV time code
Drop frame
time code
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