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Multiple SSL Audio Cards and ASIO-2
The ASIO-2 driver specification allows for only one audio card to be
used at any single time.
However, the current implementation of the SSL Soundscape Device
Driver allows multiple SSL audio cards to be used simultaneously
under ASIO-2 by presenting them to the application as a single device.
In order to use multiple cards simultaneously, the All Devices Driver
must be selected in the SSL Soundscape ASIO Panel. To open the SSL
Soundscape ASIO Panel in Nuendo 4, click Device Setup under the
Devices menu, select SSL Soundscape ASIO under VST Audio System
and click the Control Panel button.
In the example on the right, a MX4 is used with a SSL Mixpander, for a
total of 192 input streams and 192 output streams.
Although the Soundscape drivers allow multiple cards to be used simultaneously, the total number of input or output streams
for ASIO-2 is currently limited to 254 – if the total number of either stream exceeds 254 the audio application will not be able
to see or use any of the streams.
For instance:
•
Any combination of MX4s and Mixpanders could be used, provided that the combination does not exceed 254 channels and
streams.
•
Two MX4s cannot be used simultaneously under ASIO-2, neither can one MX4 and two Mixpanders as both of these
configurations would present too many input and output channels and streams.
•
Selecting a combination of cards that exceeds 254 input streams or 254 output streams will cause the sequencer to fail to
detect any streams.
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