Owner`s manual
Page 6 of 23 CDI-9321 User Manual •
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Introduction
In This Chapter
This chapter includes the following sections:
• A Word of Thanks
• Overview
• Functional Block Diagram
• Features
• Documentation Terms
A Word of Thanks
Congratulations on choosing the openGear 9321 HD/SD Audio Embedder. The 9321 is part of a full
line of modular conversion gear for broadcast TV environments. The Cobalt Digital openGear line
includes video decoders and encoders, audio embeders and de-embeders, distribution amplifiers,
format converters, and much more. Cobalt openGear modular conversion gear will meet your signal
conversion needs now and well into the future.
Should you have questions pertaining to the installation or operation of your 9321, please contact us at
the numbers listed on the back cover of this manual. We are happy to help with any questions regarding
this or any other openGear card.
Overview
The 9321 is a high quality audio embedder capable of embedding audio signals into HD or SD SDI
signals. It also gives as outputs, two re-clocked copies of the input.
The 9321 can best be thought of as having an audio router on the card. On the input side of the router
are the up to 16 channels of embedded AES in the input video, the up to 16 channels (8 pairs) of
discrete AES input, up to 8 channels of differential analog audio input. On the output side are the up to
16 channels of embedded AES audio. The router acts as a full audio cross point: each of the 16 output
embedded channels can receive signal from any one of the 40 (16 embedded AES, 16 discrete AES, 8
Analog) input channels. Each output also allows gain adjustment and optional polarity inversion.
Audio rates are always 48kHz nominally but discrete AES inputs pass through sample rate converters
to align them with the output timing. Analog audio is differential input and sampled at 48 kHz with 0
dbFS digital equivalent to +24 dBu analog.
The product also provides full color processing control of the output video, with separate controls for
Gain, Lift, Saturation and Color Phase.