User`s manual

SM-XX
31
Audio Alarms Setup
Check the boxes to activate individual audio alarms for channels or pairs of channels.
Select the loss and over thresholds for analog and digital sources. Choose an anti-phase
threshold for channel pairs.
Select All to enable a specific alarm for all channels.
Unchecked alarms remain disabled even if Use Audio Channel Alarm Settings is
checked in theAlarm tab. Nominal threshold settings apply if individual alarms are
enabled but Use Audio Channel Alarm Settings is not checked.
Enable Alarms - to enable an individual audio loss or over alarm check the box in line
with the audio channel. For phase or carrier loss alarms check the box in line with a pair
of audio channels.
Audio Loss Threshold - the level at which audio is considered lost – select values from
the analog and digital drop down boxes. The range is 0dB to -50dB for analog and -
18dBfs to -70 dBfs for digital.
Audio Over Threshold - the level at which audio is considered over level - select values
from the analog and digital drop down boxes. The range is 0dB to 20dB for analog and
0dBfs to -20 dBfs for digital.
Antiphase Threshold - the phase values in degrees before a pair of channels is
considered to be out of phase. The range is 90° to 180°.
Note: The effective Alarm State for individual alarms depends on the Use audio channel alarm
settings box check state and the applicable audio alarm state in the Alarm tab as explained
below.
If Use Audio Channel Alarm Settings is not ticked and audio loss alarm is enabled in
the Alarm tab of the Source Properties dialog, then all the channels will have their
audio loss alarms enabled with a nominal threshold set for the audio loss level.