Setting Machine Offset "On The Fly; An Example Of Setting Offsets - Tascam DA-78HR Owner's Manual

2 Press and hold down the
key to reset the value.
Machine offset will now be cancelled and the
OFFSET indicator will go out.

8.3.3 Setting machine offset "on the fly"

As well as entering an absolute number, it is also pos-
sible to enter a number "on the fly" as the tapes are
playing.
1 Locate the two tapes (master and slave) so that
they have the right offset, either by playing the
tapes and pausing them or carry out the next
operation while one or both tapes is being
played back.
2 On the slave unit to be offset, press and hold
SHIFT
the key, and press the
( OFFSET ) key at the correct offset time to cap-
ture and store the offset.
The display will briefly show
OFFSET ), and the current difference between
the master and slave tapes will be stored as an
offset.
NOTE
S
The value entered in this way can be edited later using the
technique described above.
You cannot determine the offset from an unformatted
tape, or if either tape is currently displaying a nega-
tive ABS value.

8.3.4 An example of setting offsets

A practical example of setting offsets is given here.
The master DA-78HR contains the tape with the dia-
log and reference tracks from the video worktape.
Another DA-78HR (the slave) has a tape with some
tracks containing video backing music. It is neces-
sary to produce an offset between the two so that
when the master is played, the music tracks will start
8 - Synchronization with other DTRS units
key and press the
AUTO IN/OUT
AT
(
at the correct time relative to the dialog and reference
tracks.
Copy of video worktape audio tracks
Start of tape Start of video
Connection from
SYNC OUT to
SYNC IN
Start of tape
Press the
this point. Offset will be
set to
1 Locate the slave tape with the backing music to
the start of the music.
The shuttle mode is useful here (see 7.7, "Shut-
tle operations").
2 Rewind the master to a little before you want
the music to enter.
3 Start playing the master DA-78HR.
4 When the music entry point is reached, press
and hold the SHIFT key and press the
OUT key to capture the offset point.
5 Stop the master, and set the slave into
mode (8.2.3, "Master/slave settings (CHASE
mode)").
6 Rewind the master to a little before the music
entry and start playing.
The slave machine should now follow the trans-
port movements of the master, with the appro-
priate offset, so that the music enters at the
right point.
Music entry
Backing music
Start of music (tape is
cued here)
or key at
AUTO IN/
CHASE
49
TASCAM DA-78HR