tapes are playing.

Section 9 – Synchronization with other DTRS units

2)Use the LEFT and RIGHT keys to select the field to be edited (hours, minutes, seconds or frames) and the UP and DOWN keys to change the value of that field.

You can use the function keys as number keys (see 5.2.2, “Using the function keys as number keys”) to enter the value directly.

You can also change the sign of the offset value between +and -by moving the cursor to the sign.

4)Locate the two tapes (master and slave) so that they have the right offset.

You can play the tapes and pause them or carry out the next operation while one or both tapes is being played back.

5)Press either the UP or DOWN key at the correct offset time to capture and store the offset.

The current difference between the master and slave tapes will be be displayed on the bottom line of the display screen and stored as an offset.

3) Use the ENTER key to confirm the setting.

NOTE

There is an “invisible” field immediately to the right of the frames field. If you place the cursor there and incre- ment or decrement the value, you can change the time as a whole (as the frame field passes its maximum value, the seconds field will increment).

9.3.2 Cancelling machine offset

To cancel machine offset, simply set the offset value to 00:00:00:00.

1) Press and hold down the UP key and press the OffsetDOWN key to reset the value in the Machine

menu (see above).

 

move the cursor to McnOffset , and press

Machine offset will now be canc lled.

9.3.3 Setting machine of

“on the fly”

As well as entering an absolute number, it is also possible to enter a number “on the fly” as the

1) On the slave machine, select menu group 3,

ENTER.

2)MakeMasurechichaseneOmodeff(seee 9t.2.3, “Master/slave settings (CHASE mode)”) is off on the slave unit.

3)Use the LEFTAandUTRIGHTOOFkFysSEtoTmove the cursor to a second “invisible” field to the right

of the frames field

NOTES

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 negative ABS value.

9.3.4 An example of setting offsets

A practical example of setting offsets is given here.

The master DA-98 contains the tape with the dia- log and reference tracks from the video worktape. Another DA-98 (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 at the correct time relative to the dialog and reference tracks.

Copy of video worktape audio tracks

00:57:00:00 01:00:00:00 01:02:21:18

Start of tape

Start of video Music entry

Backing music

Connection from

SYNC OUT to

SYNC IN

00:57:00:00 01:00:00:00

Start of tape

Start of music (tape

 

is cued here)

Press the UP or DOWN key at this point. Offset will be set to 00:02:21:18

06/97 – 1.00 – 9-3

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Kolpak DA-98 manual Cancelling machine offset, Setting machine On the fly, An example of setting offsets