Cobalt Digital Inc BBG-1034-AUD-PRO, Руководство по эксплуатации продукта, Страница: 9 / 114

BBG-1034-AUDPRO-OM (V1.1) BBG-1034-AUD-PRO PRODUCT MANUAL
1-5
Introduction
BBG-1034-AUD-PRO Functional Description
BBG-1034-AUD-PRO Functional Description
Figure 1-1 shows a functional block diagram of the BBG-1034-AUD-PRO.
The BBG-1034-AUD-PRO includes AES/analog audio support and CVBS
video I/O. In addition to a basic signal presence input failover function, a
Quality Check option allows failover to alternate inputs or other actions based
on user-configurable criteria such as black or frozen frame. Frame sync and
full up-down-cross conversion can be added as options.
The BBG-1034-AUD-PRO provides a DSP-based platform that supports
multiple audio DSP options. When optioned with various diverse audio
processing options, the DSP-based processing core (which supports numerous
simultaneous processing engines) uses license “credits” which allows flexible
tailoring of multiple proc function instances.
Note: The BBG-1034-AUD-PRO DSP base adds support for various DSP audio
options. Actual DSP user assets (such as loudness processing, upmixing,
and Dolby encoders) are activated for use only when corresponding option
licenses also reside on the device.
BBG-1034-AUD-PRO Input/Output Formats
The BBG-1034-AUD-PRO provides the following inputs and outputs:
•
Inputs:
•
3G/HD/SD SDI IN A thru SDI IN D
– four 3G/HD/SD-SDI inputs.
SDI IN A
or
SDI IN B
can be set to failover to
A
or
B
in absence of
opposite channel of this pair.
•
CVBS IN –
CVBS coaxial analog video input.
•
AES IN –
BNC (AES-3id, 75
Ω
) ports as AES input (number of
ports dependent on model).
• AN-AUD IN –
Four balanced analog audio embed inputs.
•
Outputs:
• 3G/HD/SD-SDI OUT (1-4)
– four 3G/HD/SD-SDI buffered video
outputs. Each output can be independently set as processed output
video or selected input video reclocked.
• RLY BYP B
–3G/HD/SD-SDI which outputs a copy of
SDI OUT 1
under normal conditions, or passive outputs the SDI input on
SDI IN B
as a relay failover if power is lost.
• AES OUT –
BNC (AES-3id, 75
Ω
) ports as AES outputs (number of
ports dependent on model).
•
AN-AUD OUT –
Four balanced analog audio de-embed outputs.
•
CVBS OUT –
CVBS coaxial analog video usable with SD video
streams.