MOTU 896mk3, Руководство пользователя

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M O T U A U D I O S E T U P
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ADAT optical A / B
The ADAT optical clock source settings ( ADAT
Optical A and ADAT Optical B ) refer to the clock
provided by the 896mk3’s two optical inputs, when
either one is connected to another optical device.
These two settings only appear in the Clock Source
menu when their corresponding optical bank input
is enabled and set to the
ADAT Optical format, as
explained in “Optical input/output” on page 39.
This setting can be used to resolve the 896mk3
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
optical device that has no way of synchronizing
digitally to the 896mk3 or an external
synchronizer. In this case, the
ADAT Optical clock
source setting lets you slave the 896mk3 to the
device itself via its digital input to the 896mk3.
This setting is also useful if you just need to make a
simple, click-free digital transfer between the
896mk3 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 25.
TOSLINK A / B
The TOSLINK clock source settings ( TOSLINK A
and TOSLINK B ) refer to the clock provided by the
896mk3’s two optical inputs, when either one is
connected to another optical device. These two
settings only appear in the Clock Source menu
with their corresponding optical bank input is
enabled and set to the
TOSLINK format, as
explained in “Optical input/output” on page 39.
The TOSLINK clock source setting refers to the
clock provided an optical S/PDIF device connected
to the 896mk3’s optical input. This setting can be
used to slave the 896mk3 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 TOSLINK-
compatible device that has no way of
synchronizing digitally to the 896mk3 or an
external synchronizer such as the Digital
Timepiece. In this case, the
TOSLINK clock source
setting lets you slave the 896mk3 to the other
device via the 896mk3’s optical input.
This setting is also useful if you just need to make a
simple, click-free digital transfer between the
896mk3 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, see “Syncing optical devices”
on page 25.
SMPTE
Choose this setting to resolve the 896mk3 directly
to SMPTE time code (LTC) being received via the
896mk3’s quarter-inch SMPTE input jack. For
details, see “Syncing to SMPTE time code directly”
on page 22 and chapter 12, “MOTU SMPTE
Console” (page 103).
Built-in Audio
Choose this setting to resolve the 896mk3 to your
Mac’s built-in audio. Doing so will ensure that
audio streams playing back from or recorded by
the 896mk3 will not drift apart from audio streams
simultaneously played or recorded by the Mac’s
built-in mic, speakers or audio output.
Other audio devices (drivers)
You may see other devices in the Clock Source list,
such as another MOTU FireWire interface, a
MOTU PCI-424 system, the Mac’s built-in audio,
or perhaps even another third-party audio
interface. The 896mk3 can resolve to these other