User guide

2-16
VENICE Client Software User Guide
2.8 About Timecode / Frame Number Fields
The DVS software provides various fields where data in timecode for-
mat is provided or an entry in such a format is necessary. The timecode
format is hh:mm:ss:ff (hours, minutes, seconds, and frame num-
ber).
Drop-frame Timecode Indication
The last colon of the timecode format may be displayed in the software
as a full stop. Then the timecode fields of the software will display, for
example, 12:25.07 instead of 12:25:07. This indicates that the
drop-frame timecode feature is activated. When entering timecode, the
last colon can also be replaced by a full stop.
Higher Frequencies and Timecode Format
Additionally, an asterisk may be added to the timecodes of the DVS
software (e.g. 12:25:07*). This will be the case when the video ras-
ter’s frequency exceeds 30 frames per second because the original
timecode format is limited to frame rates as high as that.
When the video raster’s frequency exceeds 30 frames per second, time-
code will be repeated (in the user interface as well as at the output) be-
cause the original timecode format is limited to frame rates as high as
that. To account for video rasters with higher frequencies (e.g. 720p at
60 Hz) one timecode number is used for several video frames, meaning
every second, third or fourth timecode provides the same timecode
number (the frames notation (see below) is not affected) and is tagged
with an asterisk to mark it as repeated. At the output repeated time-
code numbers are particularly flagged as well. The standard timecodes
that will be used for such procedures are 24 Hz, 25 Hz and 30 Hz: For
example, a video raster frequency of 48 Hz is provided with a 24 Hz
timecode, while a 60 Hz frequency receives a 30 Hz timecode. This will
result in a doubling of the timecode numbers:
If --:--:--:-- or --- is displayed in an entry field, a value
has not been specified so far. To delete a once made entry you
can use the delete controls as described in section “The Con-
trols Explained” on page 3-15.
60 Hz @ 30 Hz TC 60 Hz
...00:00 ...00:00
...00:00* ...00:01
...00:01 ...00:02
...00:01* ...00:03
...