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DD8
plus Version 2.20 - September 1998
The soft key functions are:
PVIEW
This allows you to ‘rehearse’ (preview) the layback (i.e. it will go
into E-E mode at the IN point and will then stop at the OUT point).
This function allows you to check whether the edit will be success-
ful or not.
LAYBACK
Pressing this will initiate the layback process (i.e. the VTR will play
to the IN point and will drop into record on the VTR. When the OUT
point is reached, it will stop).
NOTE: If tracks are accidentally enabled for record on the DD8 they will be ignored when
using the LAYBACK function.
USING THE LAYBACK FUNCTION
The DD8’s IN and OUT markers set the record in/out points for the VTR. Assuming the functions
described above are set as appropriate, press LAYBACK and the VTR will drop in/out of record
at the IN/OUT points marked.
You may ‘build’ the final transfer in sections (in this way, you can obtain the optimum mix section-
by-section) and set IN/OUT points as appropriate. You may rehearse the drop in/out using PRE-
VIEW and, when you’re happy with the results, press LAYBACK to actually ‘commit’ the record-
ing.
It may be that you want to transfer the whole project back to the video tape in one go. In this
case, set the IN at the start of the project and the OUT at the end of the project and press
LAYBACK (F3/F4) to transfer the whole project back to the master video tape in one pass.
Another use of this may be to receive a video tape as described above but the ‘sweetened’
version on the DD8 may be laid back to an RS422 equipped DAT machine thus preserving the
dialogue on the original video with a synchronised ‘master’ on DAT.
RS422 MASTER CONTROL OF NON-LINEAR VIDEO RECORDERS
Using the ‘RS422 only’ external timecode selection, it is possible to take full advantage of non-
linear hard disk video recorders such as the AKAI DV1500 or FED V-MOD 100.
When using any of the SMPTE+RS422 external timecode options, although locate/lock times in
this case are virtually immediate, when jogging at slow speeds, there is no significant perfor-
mance improvement over a VTR and the non-linear video recorder will ‘stutter’ frame by frame
much like a normal VTR. However, using the ‘RS422 only’ selection, slow speed jogging is
exceptionally smooth and very tightly locked to the DD8’s audio jogging and so is ideal for
spotting audio to picture.
However, please note that because of inaccuracies in the timecode sent via RS422, when play-
ing at nominal speed, there may be instances where there is a
±
1 frame offset. This can be
overcome by switching to SMPTE+RS422 for playback and using RS422 only for jogging and
spotting. Of course, in the RS422 SETUP page, RS422 MODE must be set to MASTER and the
SYNC key must be switched to ON.
SYSTEM - 8
