Sony PCM-7040, Operation Manual

Page: 34 / 91

Chapter 4
Chapter 4 Recording
4-3
4-1-4 Notes on Time Code
What is time code?
Electronic editing of recorded digital audio signals
requirs precise information about the editing point.
The time address is recorded on the subcode area of a
DAT tape for this purpose, and the recorded data is
called “time code”.
Notes
• Record the same type of time code continuously on a
DAT tape. If there is a non-recorded or
discontinuous area on the tape, a failure may occur
during search or editing operations.
• The time code used by the non-professional DAT
recorder is called ABS time (Absolute time: the tape
running time from the beginning of the tape), which
is different from the time code used in this unit.
When you use a tape recorded on a non-professional
DAT recorder, set “tc bASE” (TIME CODE BASE)
of the setup menu to “Abs tc” (Absolute time), or
overwrite the time code before editing.
See section 7-3 “Dial Menu Operations” (page 7-5) for
setup menu operation.
• We recommend you use the professional SMPTE/
EBU time code as the time code base in the recorder
unit for editing. As for the player unit, you can use
the ABS time code because the player unit converts
the ABS time code to SMPTE/EBU before output.
• During normal operation (not stop mode) this unit
continually outputs the playback time code.
However, during FF/REW operation, the playback
speed can reach up to 150 times normal playback
speed. In this case the time code signal is output at
double speed while skipping
1)
.
1) The time code count jumps according to the tape
speed after 5 continuous frames as in the following
example:
Example: 1 2 3 4 5, 81 82 83 84 85, 161 162 163 164
165 ...
(Actual time code count is in hours, minutes, seconds,
and frames units, such as “00H00M00S00F”.)
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