Specifications

7700/7800 MultiFrame Manual
7700ACO2-HD Dual HD/SD-SDI Smart Automatic Changeover
Revision 1.0 Page - 49
6.4.2.2. Embedded Audio Soft-Switch Control
The Embedded Audio Soft-Switch Control sub-box allows for control to enable or disable Soft-Switch
on individual audio channel pairs 1 to 8. Please note that AES Channel 1 is equivalent to embedded audio
channels 1 & 2 and AES Channel 2 is equivalent to embedded audio channels 3 & 4, etc.
6.4.3. Video Fault Duration Control
The Video Fault Duration Control tab, shown in Figure 6-7, allows for control over the thresholds and
durations under which video alarms will be generated.
Figure 6-9: Video Fault Duration Control Tab
6.4.3.1. Black Duration
The Black Duration slider sets the number for frames of black video detected before a black video alarm
is generated.
6.4.3.2. Picture Noise Level
The Picture Noise Level slider sets the approximate level of noise expected in the video signal feed, it is
used by the freeze detect feature to distinguish motion from background noise on top of a video feed.
As a guide, the range of options available from min to max is:
1 = digital freeze (no noise on top of frozen picture)
10 = 40 dB SNR
6.4.3.3. Freeze Duration
The Freeze Duration slider sets the number for frames of picture freeze before a picture freeze alarm is
generated.