Sierra Video View Multi-Viewer MV-XX - Manual (Page 63)

SIERRA VIEW
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Audio Alarms
To setup audio alarms check the Use audio channel alarm settings box and click on
Setup Audio Alarms
from the Alarm tab of the Source Properties dialogue.
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 the Alarm 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.