Lynx AES16, Руководство пользователя

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Configuring Multiple AES16’s
AES16 User Manual 69
9. Configuring Multiple AES16’s
More than one AES16 card can be installed in
a computer for additional audio channels. If
required, all AES16’s in a computer can be
configured to maintain sample accurate
synchronization during digital audio recording
and playback.
Cards are synchronized in a master-slave
arrangement. One card is selected as the
master which provides the word clock source
for the other slave cards in the system. From
the master, the word clock signal is daisy-
chained from one slave to the next.
Word clock signals can be connected
internally using the CBL-ICC Internal Clock
Cable, which is available from Lynx. The
CLOCK OUT header of one card is
connected to the CLOCK IN header of the
next card. A separate cable is required for
each slave card in the system. Alternatively,
the CLOCK connectors on the CBL-
AES1604 cables can be connected externally
with a standard 75 ohm BNC cable.
9.1 Designating clock master and slaves
In order to select master and slave AES16’s in
a system, each adapter ID must be first
physically associated with a AES16 installed in
a computer slot. Windows 2000/XP or
MacOS assigns the adapter IDs from the
lowest slot number to the highest slot
number. The procedure is as follows:
Connect at least OUT1 of each AES16 to
your external mixing console or other
equipment that will provide audio monitoring.
Choose an audio application that allows
selection of wave audio devices for audio
playback.
Select “AES16 1 Play 1” as the playback
device.
Listen to the playback of any wave file and
note which AES16 card is generating the
audio signal. In this case, the card generating
audio is adapter 1.
Repeat steps 3 and 4, for “AES16 2 Play 1”,
“AES16 3 Play 1”, and so on until all AES16’s
in your system have been identified.
The next step is to choose which AES16 will
act as a master. This choice is based on
preference only, but for ease of connection it
makes sense to choose a AES16 that is on one
end of the PCI slot array on your
motherboard.
Alternatively, if clock connections are made
externally using the CLOCK connectors on
the CBL-AES1604 cables, use BNC cables to
make connections between cards in the same
sequence as described above.
9.2 Adapter ID’s
When multiple AES16 cards are installed in a
computer they are automatically assigned
unique adapter ID numbers. These adapter
ID’s provide a means to identify and
communicate with each AES16 when using
the Lynx Mixer application and to select
audio devices in third party applications.