Presets - Polycom SoundStructure C16 Design Manual

SoundStructure
Amplifier
The target level of 75dB SPL is selected because pink noise is approximately 10 to 12dB louder than human
speech. Adjusting the amplifier volume so that 75dB SPL is heard in the room ensures that when speech is
played into the room the speech is at a good level for the listeners. Additional volume control can be
performed by adjusting the level of the fader on the "Amplifier" channel within the SoundStructure device.
Creating Advanced Applications provides examples of using the "Amplifier" channel for volume control.

Presets

Once any settings of the SoundStructure system have been adjusted, it is important to save the settings to
a full preset to ensure the settings survive a power cycle.
There are two types of presets supported within SoundStructure systems - full presets and partial presets.
All presets are stored as part of the SoundStructure configuration file.
Full Presets
Full presets store all the audio parameters of the virtual channels including input and output gains, signal
processing options, matrix cross point settings, automixer settings, and all other signal-related settings that
are different from the default values for these parameters.
SoundStructure presets do not store device-level information such as the RS-232 rate, Ethernet address,
virtual channel definitions, virtual channel group definitions, or logic pin definitions. These settings are
defined in a separate section of the configuration file and can not be changed as part of preset execution.
When full presets are executed there are two distinct events that happen. First the default values for all
parameters are restored and then the full preset is restored. The analog outputs of the system are muted
during the time it takes to execute the full preset.
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