User's Guide
DIGI96/8 PST © RME
19
12. Notes on the ADAT Interface
DIGI96/8 PST
comes with two different driver methods in one driver. Using channel
interleave there is only one device, the software in use divides the channels into 8 mono tracks.
Because this easy to handle 'Windows native' method is not widely used the
DIGI96/8
PST
also supports Multi-Device operation. The driver routes the 8 tracks in 4 stereo devices.
These 4 stereo devices can be used by nearly any software to record or playback more than 2
channels simultaneously, making
DIGI96/8 PST
compatible to a wide range of already
existing software.
DIGI96/8 PST
includes an intelligent hardware controller for ease of use. Whenever mo-
re than 2 channels are used, no matter with record, playback or both, the card switches into
ADAT mode. Whenever an ADAT signal is present at the optical input the settings dialog of the
DIGI96/8 PST
indicates ‘ADAT 44,1 kHz' or 'ADAT 48 kHz'. If now the output function is
set to ‘Input’ while AutoSync is active the card's output changes to ADAT mode to allow input
monitoring of up to 8 channels. The analog output allows you to listen to any of the four stereo
pairs. The desired pair can be selected in the 'Track' field of the Settings dialogue.
If the software being used requires a continuous ADAT mode activate the switch ‘Force Adat' in
the Settings dialog.
When using a 'normal' 2 track program to play or record a stereo file, you're not only able to
send the data to any SPDIF device but also to any other ADAT interface! Just activate 'Force
Adat' and choose the stereo pair that corresponds to the desired channels (for example
DIGI96/8 PST (3+4)).
In SPDIF mode it doesn't matter which stereo device is being used.
13. Multiclient Operation
13.1 General
The DIGI96/8 series supports multiclient operation. That means more than one program can be
used at the same time. But this mode is only available as long as certain rules are followed. For
a flawless multiclient operation with multiple programs the below guidelines have to be followed
precisely.
Rule 1: Multiclient operation always requires the activation of Force Adat!
After an activation of Force Adat all 4 output pairs can be used freely. You can use 4 different
MME programs, or two stereo pairs under ASIO, one under GSIF and one under MME – any
combination is allowed.
Rule 2: Multiclient operation always requires identical sample rates and bit resolutions!
It is not possible to run one program at 44.1 kHz and another one at 48 kHz. Also it's not pos-
sible to run one program in 16 bit and another one in 24 (32) bit resolution. Please note that the
selected latency (Mode) also sets the bit resolution for GSIF and ASIO!
