Solid State Logic MadiXtreme manual Multiple SSL Audio Cards and ASIO-2

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, All Devices 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 below, a MadiXtreme 128 is used with an 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 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:

•Three MadiXtreme 64s could be used simultaneously (providing 192 input streams and 192 output streams)

•One MadiXtreme 128 and one MadiXtreme 64 could be used together (providing 192 input and output streams)

•Any combination of MadiXtremes and Mixpanders could be used, provided that the combination does not exceed 254 channels and streams.

•Two MadiXtreme 128s cannot be used simultaneously under ASIO-2, neither can one MadiXtreme 128 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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