BBG1040ACO-OM (V1.4)
BBG-1040-ACO PRODUCT MANUAL
1-11
Introduction
BBG-1040-ACO Functional Description
Video Quality Events Detect Function
A
Video Quality Events
user interface and an
Event Triggers
user interface
provide for setting an area of concern across the program raster which can be
monitored for frozen or black video events. Threshold controls allow setting
the sensitivity of the function, while engage and disengage threshold timing
controls allow setting how fast the event detection engages and releases when
triggered. The
Event Triggers
user interface allows instructing the device as to
the action to take upon an event (such as go to a changed signal routing,
activate a GPO, send an automated email, or go to a user-defined preset).
Closed Captioning Events Detect Function
An
Event Triggers
user interface can detect Closed Caption Absence and
Closed Caption Presence events. The
Event Triggers
user interface in turn
allows instructing the device as to the action to take upon an event (such as go
to a changed signal routing, activate a GPO, send an automated email, or go to
a user-defined preset).
Video Output Crosspoint
A three-output video matrix crosspoint allows independently applying the
processed video output or reclocked input to any of the three non-relay
outputs
RCK/PROC 1
thru
RCK/PROC 3
).
Audio Processor Description
The audio processor operates as an internal audio router. An Input Audio
Status display shows the presence and peak level of each input audio channel
received by the device. For digital audio inputs, payload is identified (PCM or
data such as Dolby
®
Digital or E). An audio silence check can detect, on any
channel, audio that persists below a specified loudness exceeding a
configurable time span. This check can propagate an alert to the device
Presets function to invoke audio routing and other changes. As such, the
audio subsection provides a full crosspoint between all supported audio inputs
and output formats.
(Option
+CQS)
. Clean and Quiet Switching allows SDI input
selection to be changed from one source to another while ducking audio
during controlled input video switching transitions to provide silence between
input switches. The cross-fade is queued for the next available RP168 switch
line following the switch command.
Note:
• Clean audio switching is assured only for intentional, controlled switches via
user control. Clean audio switching cannot be assured for failover switches.
• Clean switching requires that both SDI signals (switch from and switch to)
be stable and present.
• Clean audio switching function is designed for PCM audio. This function
does not assure clean decoded audio when switching from/to Dolby or other
non-PCM audio.