Audio Processing
AURATUS’ signal-processing configuration is fixed. It is the same for
all available AURATUS mixing systems and each can be operated in
very similar ways.
Monitor speakers and external talkback pagers connect to the
system
via NEXUS, and the signals fed to nearfield speakers and
to the console’s internal intercom system are carried via RJ45 data
lines.
Signal processing is always performed with 40-bit floating-point
arithmetic.
This approach not only guarantees outstanding audio
fidelity
of EQ, filter and dynamics but also ensures virtually clip-free
audio
processing inside the console.
Audio-Channel Structure
The audio-channel structure is derived from analogue systems principles.
On the other hand, any impractical limitations have been eliminated
and additional functions introduced to enhance the console’s
flexibility.
From the user’s point of view, audio processing comprises the
following
stages: input routing, input channels, various bus types,
optionally
assignable output channels for bus signal processing, and
output
routing. Even the buses can also be routed directly to the
desired
outputs to avoid wasting processing resources.
With the exception of channel-type-specific characteristics, input,
bus and summing channels provide the same processing blocks at
fixed positions in the signal path.
Several aux sends are stereo and can thus be used to feed multichannel
effects processors.
Busses
The AURATUS’s bus system, which is part of its mixer construction,
provides
its own bus system that can be used alongside the NEXUS
TDM-bus
system. The group, summing, aux and N–1 buses are used
to combine
the signals of all assigned channels. All bus signals can
be output
to NEXUS without further processing. If necessary, the
buses can however, be assigned to separate channels – the »bus
channels« – for additional signal processing and level settings.
Direct outputs and inserts are managed by non-summing NEXUS buses and therefore
do not require summing buses.
Multichannel Formats
The multichannel concept (of the AURATUS multichannel version)
allows for simultaneous output of a 5.1 multichannel and a downmixed
stereo format. Although the required pan settings are calculated
individually during the summing operation at the buses’ inputs,
the user only sees and operates a single, shared pan control on each
(input) channel strip.
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