Polycom SoundStructure C16 Design Manual page 165

Connecting Over Conference Link2
The first step of the design process is to select the input signals as shown in the
following figure. Notice that for each HDX ceiling microphone array that is
added, there are three mono microphones with names that include A, B, and
C that are added to the project.
The second step of the design process is to select the outputs from the system
as shown in the following figure.
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