Output Signal Levels - Polycom SoundStructure C16 Design Manual

Output Signal Levels

Output signals from the SoundStructure device are connected to various other devices including audio
amplifiers, recorders, and video codecs. For best performance, the output signal levels of the
SoundStructure devices should match the expected signal levels of the next device that is attached.
The SoundStructure default output signal level of 0 dBu is the correct level when connecting to most
professional audio equipment. When connecting to consumer equipment, such as equipment that requires
an RCA-style connector the SoundStructure output gain should be reduced to -10dB to prevent overdriving
the input stage on the consumer equipment. The output gain settings are found at the bottom of the
channels page as shown in the following figure. The gain may be set to +4dB if required to connect to
devices that require a +4dBu nominal input signal level. Negative gain adjustments (< 0) are applied in the
analog domain at the digital to analog converter. Adjustments made to the output level in the highlighted
slider are not shown in the fader meter.
After the output level has been set appropriately for the next piece of equipment in the signal chain, volume
adjustments should be done with the fader control and adjustments in level made in the fader is shown as
more or less signal in meter next to the fader control.
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