AudioFile SCX user manual
270
Revision
0.91
This parameter is used to delay the onset of servo action for a given number
of frames. This can be set to allow time for the machine’s transport to stabilise
before beginning servo action. Some machines may give inaccurate
information to the MCS when servo is begun too quickly. Increasing this value
may help to compensate for this.
Lock Acceleration (frames)
Number of frames away from lock that minimum servoing is applied.
Servo action is applied in 3 stages by the MCS, each stage being more
aggressive. If the machine persistently overshoots the lock position during
locking, increasing this value will apply gentler servoing as the machine
approaches lock and may help reduce this.
Hold Off time (frames)
Wait for this number of frames after fine slewing into lock has achieved a zero
error before releasing.
Normally, when zero error has been achieved the machine is released from
ervo in order to lock to the video frame edge. However, depending upon the
situation the
g
n the timeline is this many frames behind the
hen machine synchronisation is begun after the PLAY key has been
pressed, the system will pre-roll by 16 frames and then run the timeline
rough the machine position. If the machine error is observed to count down
slowly from 16 frames to zero, adjusting this parameter by 2 frames may
. If the machine can be seen to have several frames to servo after
r may correct this.
Machine parks ahead when chasing to a moving timeline by this many
frames.
Servo type (0, 1 or 2)
Final approach : 0 means servo up from 1 frame behind; 1 means servo
directly into lock; 2 means come back from 1 frame in front.
s
transport ballistics, some machines may have moved through zero error and
be moving away from zero error at this point. If released in this
machine may repeatedly report lock & locking. Increasing the hold off time
auses the MCS to wait after zero error has been achieved before releasin
c
the machine.
Start-up time (frames)
lay command is issued whe
P
machine position.
W
th
correct this
receiving its play command, adjusting this paramete
Park Time (frames)
Jan 2008
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