Audio Processor Description - Cobalt Digital Inc BBG-1022-2FS Product Manual

Introduction

Audio Processor Description

BBG1022-2FS-OM (V1.3)
Ancillary Data Processor
This function provides full VANC/HANC ancillary data de-embedding and
embedding for 3G/HD/SD-SDI streams. Direct access to DID and SDID
locations allows extraction or insertion of user data such as camera PTZ,
SCTE 104, closed-captioning read/insert, GPI/GPO via ANC, or other
specialized user payloads. Data can be extracted and inserted within the
device (Bridge mode), or inserted and/or extracted to and from the device via
serial or IP interfaces connecting to external devices/systems. A rear I/O
module with a dedicated IP port can be used with the ancillary data processor
function for data insertion or extraction via IP.
Video Output Crosspoint
Used in common as a routing source for both
video matrix crosspoint that allows independently applying the processed
video output, reclocked input, or wings/key-fill previews to any of the four
discrete coaxial outputs (
CVBS coaxial output is available as a processed video output.
Note: Path 1 and Path 2 have individual independent digital audio embed and
de-embed banks for each of the processing path's 16-channels of embedded
audio. The 16 channels of AES embed/de-embed can be allocated individu-
ally to any or either path's embed or de-embed nodes. Similarly, four-channel
analog audio can be individually allocated across any or either path's embed
or de-embed nodes.
The audio processor operates as an internal audio router. This function
chooses from the following inputs:
16 channels of embedded audio from the SDI video input (default
•
1-to-1 routing to SDI output)
Up to 16 channels (8 pairs) of discrete AES input
•
Up to 4 channels of balanced analog audio input
•
(See Figure 1-3.) The audio processing subsection is built around an internal
16-channel audio bus. This 16-channel bus receives inputs from an input
routing crosspoint that routes de-embedded, and discrete AES and analog
audio inputs, over the 16-channel bus. Correspondingly, at the output end of
the 16-channel bus is an output routing crosspoint that in turn distributes the
16-channel bus signals to embedded, and discrete AES and analog audio
outputs.
1. Discrete audio I/O channel count is dependent on model.
BBG-1022-2FS PRODUCT MANUAL
BBG-1022-2FS Functional Description
Path 1
thru
SDI OUT 1 SDI OUT 4
/ is a four-output
Path 2
). For an SD output, a
1
1-11