Audio Processor Description - Cobalt Digital Inc 9922-2FS Product Manual

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Audio Processor Description

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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 card
(Bridge mode), or inserted and/or extracted to and from the card 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 card
processed video output, reclocked input, or wings/key-fill previews to any of
the four card discrete coaxial outputs (
output, a 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 card's 16 channels of AES embed/de-embed can be allocated
individually 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 a card
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 card 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 rear I/O module used.
9922-2FS PRODUCT MANUAL
9922-2FS Functional Description
/ is a four-output
Path 1 Path 2
thru
SDI OUT 1 SDI OUT 4
1
). For an SD
9922-2FS-OM (V1.8)