NewTek TriCaster Advanced Edition User Guide User Manual
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When present, channels C and D can be separately routed. Let’s talk about what an audio bus is and how it
is useful before proceeding.
B
USSES AND
O
UTPUTS
Consider a very basic audio mixer. Its main audio signal path, from input to output, is properly called the
‘master bus.’ Sound supplied to one or more inputs is placed on this master bus (in the jargon of audio
processing, this is called a ‘send’), which ultimately flows to output connectors.
Slightly more advanced mixers often provide more than one ‘send’ for individual inputs. For example, the
sound from all inputs may be sent to the master bus, comprising the ‘master mix’. A different mix, sometimes
called a ‘sub-mix’, might also be created by sending certain signals to a secondary (‘auxiliary’, or ‘Aux’) bus.
Hint: A secondary mix, prepared on an Aux bus, can serve many purposes. For example, you might wish to record
a mix with all sound from talent microphones but that excludes any sound effects or music.
Let’s summarize what we have learned so far: A ‘send’ pipes audio signals from an input to a discrete pathway
called a ‘bus’. Multiple sends can be used to place sound from a given source onto one or more internal
busses. OK, what else should we know?
Each audio bus is discrete. Each can be directed along different output paths. And even when the blend of
signals it carries is otherwise identical to another bus, it can be processed separately; its level, equalization,
and compressor/limiter settings can be unique.
TriCaster provides four primary audio busses. These are
identified in the Audio Mixer as:
Master 1
Master 2
AUX 1
AUX 2
The Audio Mixer provides control groups for each of these busses
(Figure 203), allowing you to set their levels and signal
processing.
FIGURE 203
It is important to understand the distinction between busses and outputs. Now that we
understand the former, let’s consider the latter.
Secondary audio busses:
Actually, beyond the primary busses
mentioned here, TriCaster maintains
a large number of secondary internal
busses.
For example, the Solo switch for each
input (and output) is actually a ‘send’
that adds sound to a ‘Solo bus’.
Likewise, the IsoCorder™ module (on
supporting models) permits discrete
recording
directly
from
the
unmodified audio input associated
with any single video source; really,
this constitutes another up to eight
additional audio busses.