Unicorn Digital Timepiece, Руководство пользователя

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I N S T A L L A T I O N
20
Using a DA-88 with an SY-88 sync card as the
SMPTE time code master
If you would like to use the SMPTE time code track
on a DA-88 deck equipped with an SY-88 card,
then the DA-88 cannot operate as a slave to the
Digital Timepiece. Instead, the DA-88 acts as the
master and the Digital Timepiece slaves to it, a
shown below in Figure 3-13. The word clock
connection from the SY-88 card to the Digital
Timepiece is optional, although it is highly
recommended for tighter sync and faster lockup
time.
This scenario requires an SY-88 card. The DA-88/
SY-88 combination serves as the master, feeding
SMPTE time code (LTC or MTC) to the Digital
Timepiece and other devices. You control the
Digital Timepiece, along with everything else
attached to the Digital Timepiece, from the DA-88.
This scenario allows you to sync the DA-88 — and
the Digital Timepiece — to time code from other
sources, such as a video deck, or the time code sub-
track on a DA-88 tape.
DA-88/SY-88 as SMPTE and word clock master
This scenario is identical to the SMPTE-only
scenario just discussed, except that you also feed
word clock from the SY-88 card into the Digital
Timepiece, in addition to SMPTE time code, as
shown below in Figure 3-13. This produces faster
lock-up times and tighter sync than the SMPTE-
only scenario above.
Figure 3-13: To use the time code track on a DA-88 equipped with an SY-88 sync card, the DA-88 serves as the time code master. In this setup,
it also serves as the time base master. The Digital Timepiece slaves to the word clock and SMPTE it receives from the DA-88. The MMC remote
control from the computer as shown here is optional. Figure 3-14 on page 21 shows this setup with everything referenced to house sync.
Digital Timepiece
DA-88 with SY-88 Sync Card
DA-88
Word clock out
Word 1x IN
SMPTE IN
(LTC or MTC)
SY-88 Card
SMPTE out
(LTC or MTC)
Digital Timepiece
time base mode:
Word 1x/LTC
MMC compatible
sequencer or audio
software
bi-directional MIDI
for MMC and MTC
Various forms of word clock and SMPTE time code distributed by the Digital Timepiece to other devices.
DA-88/SY-88 setup notes
1. If you are using MTC, make sure the SY-88 is
programmed to send MTC by checking the SY-88
card’s S2 location DIP switches (on the board
itself). The 8th switch should be “On”.
2. Make sure the Digital Timepiece’s frame rate and
sample rate match the DA-88/SY-88. (Note: the
DA-88 sample rate is visible on the front panel; the
frame rate can be set by depressing the up/down
arrows simultaneously. Use the up/down arrows
to change the frame rate, if necessary. Depress
DISPLAY & down arrow to exit.)
3. The SY-88’s rear panel MODE DIP switches must be
set to enable MIDI Machine Control. All switches
should be in the down position, except for #2
MMC remote control setup notes
To control this entire rig from your computer:
1. Set the Machine ID on the SY-88 card using
the first four DIP switches at location S2 on
your SY-88 card. Refer to your DA-88
manual for details.
2. Connect a MIDI Out from your MIDI inter-
face to the MIDI In on the SY-88 card so
software can send MMC commands to the
SY-88 card.
3. Be sure to feed MTC back to the computer,
either from the SY-88 MIDI OUT port or
from the Digital Timepiece (but not both!).
4. Make your software send MMC commands
with the same ID you gave the SY-88 (not
the Digital Timepiece). See “Controlling a
DA-88/SY-88 with Performer” on page 72.