• If External VITC or LTC is NOT being used, STABLE may be decreased from its
default value of 45 to a value of 15. If STABLE is decreased to 15, PLY may be
decreased to 12.
• STABLE should not be decreased to a value less than 15.
• With REW set to 30, the earliest scene you can mark on a tape is approximately 45
seconds to one minute from the start of the tape. If REW is decreased, scenes may start
earlier on the tape by a corresponding amount.
• REW may be set as low as PLY (12-15); however, decreasing REW may prevent Edit
Suite from rewinding far enough to reach the search point–in which case the scene will be
missed.
At the start of a search, if external LTC or VITC is used, Edit Suite issues a Play command, waits for the
stable period (approximately 1/10th of a second times the STABLE value), and then reads the VITC or
LTC. This allows enough time for the VCR to change to Play speed from Stop, Fast Forward, etc., and
to be delivering readable time code data. Edit Suite uses this new reading of the time code to determine
the relationship between the time code and the real time counter for the VCR.
Next, Edit Suite determines which way it needs to move the VCR transport. It does this by comparing
the current time with the search point. For a GO TO, the search point is the IN or OUT point of the
current event plus or minus the OUT OFFSET amount for the VCR. For a preview or an auto-record, the
search point is the IN time for the event minus the PREROLL time, plus or minus the OUT OFFSET
amount for the VCR.
If the tape is more than two minutes (the FFD value) earlier than the search point, Edit Suite issues a
Fast Forward command to the VCR. When it reaches the FFD value, a Cue command is issued. The
VCR will remain in Cue until it is approximately 15 seconds (the PLY value) from the search point.
When the PLY value is reached, Edit Suite issues a Play command, waits for the stable period, reads the
time code and real time counter values, and makes any final adjustments necessary to reach the target.
If the tape is between the FFD and the REW parameter values when the search is started, the search
begins with a Cue instead of a fast forward.
If the tape is closer to the target than the REW value or if it is beyond the target, Edit Suite issues a
Rewind command. The VCR stays in Rewind until the tape is at least the REW parameter value away
from the target. A Cue is then issued, followed by a Play when the PLY value is reached.
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