Figure 6.10 Audio Selection Settings
Silence is detected when all channels in the audio component have a volume lower
than the value set in the Audio Threshold box. The hysteresis is defined by two
delays Time Threshold Before Slate and Time Threshold Before Recovery.
Timing is approximate: +/-3 seconds.
If the slate has been triggered, an alarm referring to this condition (silent audio) is
raised, unless the slate has also been triggered by one of the other two Action On
features, in which case only the alarm referring to both frozen video and silent audio
is raised.
6.6.2.1.4 Option Detect under Action On > Freeze Frame and Silence
The other two options can be enabled at the same time and they operate
independently, either condition triggering the slate as soon as their time thresholds
are satisfied. Enabling detection in Action On > Freeze Frame and Silence
however, requires that both conditions coexist for the duration of the Time
Threshold Before Slate before the slate is output. Conversely, if only one condition
(or none) persists for the duration of the Time Threshold before Recovery, then
the slate is removed (unless other options are enabled and in slate triggering
conditions). Timing is approximate: +/-3 seconds.
If the slate has been triggered by this option, then the video component is frozen
and the selected audio component is silent, so the combined alarm is always raised.
To Next Page
Loading...
