User`s guide

MOTU FIREWIRE AUDIO CONSOLE
37
digital clock master. In this case, you would set the
MOTU 896 clock source setting to ADAT 9-pin, as
described below.
ADAT 9-pin
The ADAT 9-pin clock source setting refers to the
ADAT digital audio synchronization format. It
allows the MOTU 896 to slave to an ADAT — or
ADAT sync chain — via its ADAT sync 9-pin
connector. ADAT sync also carries precise, sample
location information, which allows Cubase VST or
other sample-accurate ASIO 2.0-compatible audio
software to transfer audio to and from ADATs
without drifting by as much as one sample.
Use this setting when you are using the MOTU 896
with one or more ADATs. Make sure the MOTU
896 is connected to the end of the ADAT sync
chain.
You should also use this setting if you have a MIDI
Timepiece AV, which allows you to drive your
entire system from the transport controls of your
audio software.
You could also use ADAT sync to continuously
resolve the MOTU 896 to SMPTE time code, video,
and word clock via a synchronizer like the MOTU
MIDI Timepiece AV. Word clock can accomplish
the same thing.
For further details, see “Sample-accurate sync with
ADATs” on page 24, “ADAT sync with no
synchronizer” on page 25 and “Sync to SMPTE,
word clock, video” on page 26.
ADAT optical
The ADAT optical clock source setting refers to the
clock provided by the MOTU 896’s optical input,
when it is connected to an ADAT optical device.
This setting can be used to slave the MOTU 896
directly to the optical input connection. Most of
the time, you can set up a better operating scenario
that uses one of the other synchronization options.
However, there may be occasions when you have an
ADAT optical compatible device that has no way of
synchronizing digitally to the MOTU 896 or an
external synchronizer such as the Digital
Timepiece. In this case, the ADAT Optical clock
source setting lets you slave the MOTU 896 to the
device itself via its digital input to the MOTU 896.
If the ADAT Optical setting does not appear in the
menu, it means that the MOTU 896’s optical input
is currently turned off. If so, choose the ADAT
format from the Optical input menu (Figure 5-1 on
page 36).
This setting is also useful if you just need to make a
simple, click-free digital transfer between the
MOTU 896 and another device — where a time
code reference and shared transport control are not
needed — without having to set up an elaborate
synchronization scenario.
For further details about this setting, see “Syncing
optical devices” on page 27.
AES/EBU
The AES/EBU clock source setting refers to the
AES/EBU input connector on the MOTU 896. This
setting allows the MOTU 896 to slave to another
AES/EBU device.
Use this setting whenever you are recording input
from a DAT deck or other AES/EBU device into the
MOTU 896. It is not necessary in the opposite
direction (when you are transferring from the
MOTU 896 to the DAT machine).
For further details about this setting, see “Syncing
AES/EBU devices” on page 28.
Word Clock In
Choose this setting to slave the MOTU 896 to an
external word clock source. For details, see
“Syncing to word clock” on page 31.
!896 Manual/Win Page 37 Tuesday, November 27, 2001 5:02 PM