
GX9000 User manual
Rev 2.1
Timecode
Timecode
Genex Audio Inc
Page 51
The GX9000 supports all standard timecode rates, 24, 25, 29.97drop, 29.97non-drop and 30 frame.
For AES31 formats the timecode rate is stored as part of the ADL (Audio Decision List) and is recalled
when opening the file.
Timecode Generator
The internal timecode generator generates SMPTE standard LTC
(longitudinal timecode). The current generator timecode can be displayed on
the front panel timecode display depending on the display mode, and the
selected Disk Format. The generator output is sent to the LTC output on the
rear panel. The current generator timecode is also sent in response to
timecode requests via the RS422 P2 connector on the rear panel.
3
Sync
T
3
.
TC Gen
UV
Ext Inp
Rec Run
T.O.D
The generator can operate in one of three selectable modes.
Rec Run
The generator runs (counts) only in record. The start value is the current
value of the generator, which is usually the count reached after the last
recording. The value can be overridden using the
.TC Set
menu heading
described below.
T.O.D
The generator runs (counts) only in record. The start value is the Time of Day
read from the internal clock generator chip. Setting the time and date is
described in section .
Ext Inp
The timecode count from the timecode reader is jammed into the generator.
In this mode you can think of the generator as an identical copy of the
incoming timecode.
Pressing the
Chase
button automatically puts the generator into External
Input mode. Be sure to match the rate of the timecode generator to the
incoming rate. The Ext Inp LED will light solid if the incoming rate matches
the selected generator rate and the incoming timecode is valid. The LED will
flash if one of the following conditions are met.
•
The rate of the input timecode is different to the rate of the generator.
•
The input timecode is not counting consecutive frames, or is otherwise
invalid.
•
The input timecode can’t be detected.
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