Timecode
I. State
Timecode source (Internal or External) can be chosen in the Audio & Timecode Menu.
It is symbolized in the Record, Pre-Record, Test and Stop Menus by a round icon with the letter
'E' for External and 'I' for internal.
This icon can be:
•
Green: Timecode is initialized.
•
Blinking Orange: Jamming Timecode.
•
Red: Timecode is not initialized.
At startup, the Timecode icon is red. This is to remind you to verify the Timecode state.
II. Internal Source Timecode Method
1.
Internal Free-Run master clock
The internal TCXO 1ppm 'Sync Clock' keeps the time accurate to within ±0.5 frame in eight
hours; this time is used to stamp the sound files with the very same TC as the one stamped on
the camera's images (AatonCode method called 'Free-Run TC' in the video world).
Once initialized Cantar behaves as a master-clock.
The Internal 'Sync Clock' initialization choices are:
i.
Calendat Init
At startup, Cantar reads the system's calendar date and time to initialize the 'Sync Clock', 'Stc'
(System-TC) is displayed in the timecode area.
To remind you to sync other equipment around to the Cantar 'Sync Clock', the icon stays red until
you press the Shift + F3 buttons in order to confirm System Time as Timecode.
ii.
Operator Init
If you want to set the 'Sync Clock' with your own time, go to the Audio & Timecode Menu and
choose 'Set Operator Tc'. 'OTC' (Operator-TC) is displayed in the timecode area.
iii.
LTC Init & Control (from camera, GPS or Cantar) LTC-out
Pressing the F3 button for more than three (3) seconds causes the LTC received from the external
source to jam the internal 'Sync Clock'. 'JTC' (Jammed-TC) is displayed in the timecode area.
If no TC is being received, the Jam has no effect and 'Jam Failed' is displayed.
In the Stop position, the 'Sync Clock' is set by an Aaton OriginC which also initializes
cameras and GMT generators. 'ATC' (ASCII-TC) appears in the timecode area.
2.
Internal Record-Run driving clock
Go to the Audio & Timecode Menu, choose 'Set RecRun TC', 01:00:00 is proposed as the first
TC of the day (it can be modified). From now on, at the beginning of each audio file Cantar will
stamp a start-TC incremented by two seconds later than the preceding Take's end-TC. This
clocking, called Record-Run, produces audio files which appear as if they have been recorded in
continuity.
If for some reason Cantar is turned 'OFF', the Record-Run TC must be initialized again. To
prevent any TC overlap, Cantar proposes to start on the next hour integer, e.g. if the last
Cantar X3
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Содержание Cantar Mini
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