Lynx Studio LT-MADI - Manual (Page 15)

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7.2 LT-MADI 16/32-channel modes
When used with some LSLOT expansion cards like the LT-MADI, an Aurora 16 can be
configured to operate as a 16-channel or a 32-channel device, depending on your ultimate I/O
needs. 16-channel mode is ideal for streaming audio via MADI to the Auroras Analog I/O OR
AES I/O, but not both. In contrast, 32-channel mode provides access to all AES/EBU and
ANALOG channels on the Aurora, simultaneously and independently.
7.2.1 16-channel mode
In 16-channel mode, the LT-MADI extracts 16 audio channels from the incoming MADI stream
and sends them to the Analog and AES outputs simultaneously. The signals are mirrored so that
signals delivered to Analog Output 1 would also be sent to AES Output 1.
For the outgoing MADI Stream, the LT-MADI card can be set to route audio from the Analog
inputs OR the AES inputs, but not both at the same time. Selecting Digital Inputs or Analog
Inputs is done with SW4 switch on the LT-MADI card. See below:
SW4 Selection when in 16-channel mode SWITCH
OFF DIGITAL INPUT
1 2 3 4
ON C&K SDA04
Back of Aurora
ON ANALOG INPUT
1 2 3 4
ON C&K SDA04
Back of Aurora
The Analog/Digital selection is global. You cannot, for instance, send 8 channels from the
Analog inputs and 8 channels from the AES inputs to the MADI outputs.
Note: this switch is only applicable for an Aurora 16 set to 16-channel mode, and is not pertinent
for use with an Aurora 8 or an Aurora 16 set to 32-channel mode.
7.2.2 32-channel mode
In 32 channel mode and device ID 0, the LT-MADI is capable of routing 32 audio channels from
the incoming MADI stream and sending channels 1-16 to the Aurora Analog outputs, and
channels 17-32 to the AES outputs. Similarly, the signals from the Analog Inputs can be routed
to MADI Outputs 1-16, and signals from the AES Inputs can be routed to MADI outputs 17-32
(note that if the LT-MADI has device ID 1, then the corresponding MADI channels will be 33-
48 and 49-64).
As an example, a signal sent to MADI input channel 3 will be delivered to Aurora analog output
3, whereas a signal sent to MADI input channel 18 will be delivered to AES Output 2
(sometimes labeled 1R). See Section 9:
Routing and Channel Mapping for more information.