User's Guide
DIGI96/8 PST © RME
14
9.2 Force Adat
The function 'Force Adat' is a mighty feature of the DIGI96/8 series. It forces the digital output
into ADAT mode (i.e. 8-channel operation).
When using a 'normal' 2-track program to play 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 channels you want the data being transfered to
(for example DIGI96/8 PST (3+4)).
When 'Force Adat' is activated, more than one 2-channel (stereo) program can access the
ADAT interface simultaneously (see chapter 12).
If the software being used requires a continuous ADAT mode, activate the switch ‘Force Adat'
in the RME DIGI Settings dialog.
When using ASIO and only one stereo output bus, activated 'Force ADAT' causes the out-
put to operate in ADAT format (see chapter 13).
When the DIGI is set to pass-through operation (constant monitoring of the input signal by
selecting 'Input' mode) it turns into a real-time SPDIF to/from ADAT converter, processed by
the hardware without any additional software. Activated 'Force Adat' allows you to use the card
as a format converter from SPDIF to ADAT. The stereo signal at the input is copied to all 4
stereo pairs of the output. The option 'A/S Conv.' forces the card's output into stereo operation.
Then the card works as format converter from ADAT to SPDIF. Use the 'Track' buttons to
define which one of the 4 stereo input pairs will be routed to the SPDIF output.
9.3 Analog Output
Whenever the card's output operates in ADAT format, the 2-channel analog output will play
back one of the four stereo pairs. The desired pair can be selected in the 'Track' field of the
Settings dialog. In SPDIF (stereo) mode the Track selection has no functionality.
The analog output level can be set coarse (four 6 dB steps) or fine using the faders in the field
'Volume'. Both methods operate simultaneously and with digital precision. The shown damping
values are exactly the ones used. The used technique avoids changes in frequency response
and distortion. Only the dynamic range will decrease at higher dampings, as the noise level of
the analog output stage remains unchanged.
