OPTICOM OPERA - V 3.5 User Manual page 41

C H A P T E R 4 : G E T T I N G
F R A M E W O R K
Note:
The faders of the audio mixer take effect on the gain of the digital
side of the A/D converter. This means that the S/N ratio is
decreased when the analog output gain is decreased.
Note:
The latency of the Digigram driver is approximately 100ms.
Both digital inputs of the Digigram board can be used, by making sure that both
inputs are running at exactly the same, synchronized sampling frequency. If
feeding back the digital outputs to the digital inputs is desired, supply an
external clock to one of the synch inputs of the board. To use OptiCall for the
data acquisition, as described later in this chapter, connect AES/EBU Out 1 to
AES/EBU In 2, select Audio #2 as the originating and Audio #1 as the
terminating interface. An external clock signal (e.g. another AES/EBU signal at
the same sample rate as required for the played file) must be connected to
AES/EBU In 1 in this case. Alternatively, feed back AES/EBU Out 2 to AES/EBU
In 1 and connect any of the external synch inputs a valid clock signal.
Figure 4.5: Mixer Window of the installed Audio Interface Board
T O K N O W T H E O P E R A ™
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