NewTek TriCaster 300 - Manual (Page 198)

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13.1 EXTERNAL SOURCES
The first three sub-panels are labeled for Input rows 1-3 on TriCaster’s faceplate. You may
choose to think of these audio sources as being associated with video inputs 1-3 in the nearby
rows (see the sub-heading Follow, below) but you are completely free to use them in various
other configurations.
Figure 172
13.1.1 MUTE
The header for each control group is labeled, and this is also where Mute switches are located.
Click anywhere in the header’s grey band to toggle Mute for all associated channels; or (when
multiple Mute switches are shown) click a single speaker icon directly to disable that channel.