60
Adjustments and Settings for Recording: Setting Time Data
The unit supports time codes, user bits, date, and time (real time) data, which are recorded as data for the sub-code area,
VIDEO AUX area, and clip metadata files. It also includes a CTL counter and camera ID.
The TCG switch can be used to switch between Rec run and
Free run.
Free run:
The time code always advances even when
the power is turned off. It can be handled as
time. It can be slaved to the time code input
through the TC IN connector.
Rec run:
The time code is recorded as sequential
values regenerated as the time code for a clip
recorded on a P2 card.
Note
When using VFR, native recording is limited to Rec run. Free
run operation is not possible.
The unit separately includes 2 types of user bits: one (UB) is
recorded in the sub-code area and the other (VITC UB) in
the VIDEO AUX area.
Each user bits can be recorded as any of the following: a
user defined value, time, date, same value as the time code,
frame rate information for camera shooting, externally input
value (through the TC IN or DVCPRO connector), and value
regenerated as the user bits recorded in a clip on a P2 card.
The unit includes only one user defined value. If user
defined values are selected for both the UB and VITC UB,
then the same value is used.
Types of UB can be selected in UB MODE and types of
VITC UB can be selected in VITC UB MODE, respectively.
However, in the following cases, at least one of UB and VITC
UB is always frame rate information in order to support
editors (PC software of the like) which make use of
information about the frame rate employed at shooting.
In 720P mode, both the UB and VITC UB are always
frame rate information.
For recording 24P/24PA in 1080i mode, VITC UB is fixed
to frame rate information.
In Native mode, VITC UB is fixed to frame rate
information.
The built-in clock maintains the date and time. When the
GPS unit AJ-GPS910G is installed, the built-in clock is
corrected with accurate date and time information from the
GPS.
The built-in clock is used not only to keep track of the Free
run time code when the power is switched off and to provide
time and date data for the user bits, but also as a time
reference when generating files during clip recording and to
determine the arrangement and playback order of
thumbnails.
It is also used to generate clip metadata and UMIDs (Unique
Material Identifiers) in the VIDEO AUX area.
The CTL counter will measure total recording time after
resetting in the recording operation. At playback, CTL is
counted from the start of the first clip that can be played
back. This can be used to find the current playback position.
The camera ID can be set with 10 characters 3 lines,
which can be superimposed on the color bar video. It can be
also superimposed along with date and time data.
Setting Time Data
Description of time data
Time code
User bits
Date and time (real time)
CTL counter
Camera ID
AJ-HPX2700G-VQT1V27_eng.book 60 ページ ２００８年９月２日 火曜日 午後５時４３分
