Troubleshooting; Audio Troubleshooting - Polycom SoundStructure C16 Design Manual

Troubleshooting

This chapter presents a series of situations and troubleshooting steps to resolve the situation.
Troubleshooting is most effective when problems can be isolated, reproduced, and then resolved one at a
time. This "divide-and-conquer" approach will be used in this chapter.

Audio Troubleshooting

Many audio problems can be traced to the following issues:
1 Wiring issues - the system is wired differently from how SoundStructure Studio thinks the system
should be wired.
2 Audio isn't routed properly through the matrix to the desired outputs
3 The signal is muted at inputs or outputs, or possibly safety mute is enabled
4 The gain structure for the signal is not appropriate - too much or too little gain is applied at the inputs
or outputs or the input or output fader has a value significantly different from 0 dB. See
SoundStructure Devices
5 The gain on the amplifier that drives audio into the local room is not configured properly. The
amplifier level should be adjusted after the remote audio input levels have been adjusted on the
SoundStructure.
6 Physical wiring issues - phoenix connectors are not terminated properly or inputs are plugged into
outputs and outputs are plugged into inputs by mistake - remember the inputs are on the bottom row
of phoenix connectors and the outputs are on the top row of phoenix connectors.
In most cases, simplifying the system, for instance by muting all but one microphone, can be used to isolate
a particular issue.
Below are some common issues with associated steps for resolving the issue.
Local participants Can't Hear Remote Participants
Check that the audio from the remote participants is routed through the matrix to the local amplifier outputs.
Is the amplifier turned on? Can other sources of audio be heard in the local room? Add a Signal Generator
from the Edit Channels control and route the signal generator to the amplifier virtual channel.
Check that the wiring for the amplifier virtual channel on the wiring page matches how the system is actually
wired.
Check that the audio from the remote participants is not muted either locally or at the remote site.
Remote Participants Can't Hear Local Participants
Check that the audio from the local participants is routed through the matrix to the remote participants.
Polycom, Inc.
for guidelines on setting the input and output gains
Installing
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