Matrix Settings; Macro Definitions - Polycom EF2201 Application Note

Wireless microphones do not use phantom power and will have an input gain that
depends on whether they are mic level mode or line level mode.
Video codecs and other consumer-level audio equipment are automatically
configured to have 10dB of gain on the input and -10dB of gain on the output to
match the 0dBu nominal levels of the Vortex devices. The VSX 8000 codec
interfaces at 0dB input and 0dB output gains due to the use of professional signal
levels and balanced audio connections on the VSX 8000.

Matrix Settings

Polycom InstantDesigner automatically configures the matrix, the zone to zone
reinforcement gains, the acoustic echo canceller references, and the bussing
(when multiple Vortex devices are required). All microphone audio is sent to the
remote participants (video codec, telephony, etc.), and remote audio is sent to the
loudspeaker, and program audio is sent to left and right program audio
loudspeakers. The text labels that were initially selected are automatically used as
the text labels within Conference Composer.
Microphones are bussed appropriately to ensure they are available to all
connected devices and at the appropriate reinforcement level.

Macro Definitions

Polycom InstantDesigner will configure each Vortex device with a set of macros
that can be used for volume control of microphones, program audio, muting and
unmuting microphones, amplifier volume control, etc. In our example, the macros
are shown in Figure 20, and the complete set of macros that are created for the
Vortex EF2280 in this example is shown in Table 3.
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