Creating A Two Pstn Line Positional "Receive" Audio Conferencing System - Polycom SoundStructure C16 Design Manual

set mute "Mics" 0
will unmute the microphones in the system.
Volume Control
Volume control in the room can be accomplished by adjusting the fader control on the "Amplifier" virtual
channel as follows:
inc fader "Amplifier" 1
will increase the gain on the "Amplifier" channel by 1dB and
dec fader "Amplifier" 1
Alternatively the fader settings may be set to an absolute value with the set command as follows:
set fader "Amplifier" 0
to set the value of the fader to 0dB.
The volume control range can be limited by setting a fader max and fader min as shown in the API syntax
below:
set fader max "Amplifier" 10
set fader min "Amplifier" -10
to limit the maximum and minimum user range of the fader control to +10 and -10dB respectively. The max
and min ranges only need to be set once and can be configured as part of the SoundStructure Studio
configuration file. If the current amplifier fader setting is outside of this range, the range of the maximum or
minimum fader values will be adjusted to include the current fader setting.
Telephone Functions
The telephone interface may be taken offhook by sending the command
set phone_connect "Phone Out" 1
and placed on hook with the command
set phone_connect "Phone Out" 0
The telephone may be set to dial the digits 1234567, once taken offhook, with the command:
set phone_dial "Phone Out" "1234567"
Creating a Two PSTN Line Positional "Receive" Audio
Conferencing System
This example creates a positional receive audio conferencing system using two telephony lines to represent
two remote participants. The system is called "positional receive" because the two remote participants will
come from different loudspeakers to create a positional experience where one remote talker comes from
one loudspeaker and the other remote talker's audio is associated with the other loudspeaker system. The
layout of the room may look like the following figure with two zones of audio driving the ceiling loudspeakers.
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