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Page 6 of 20 CDI-9323 User Manual •
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• (V 0.5)
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 9301 AES Audio Delay. The CDI-9301 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 9301, 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 9301 is a high quality AES audio delay capable of delaying up to 8 AES channel pairs. The delay
range spans from as little as 8.3 ms to as much as 5.461 seconds. All input AES signals are sample rate
converted to match a common output timing. The output timing can be locked to the AES input timing,
or a black burst or tri-level video reference signal.
Beyond audio delay, the 9301 can also provide AES audio routing. On the input side of the router are
the up to 16 channels (8 pairs) of discrete AES input. On the output side are the up to 16 channels (8
pairs) of discrete AES output. The router acts as a full audio cross point: each of the 16 output channels
can receive signal from any one of the 16 input channels. Output channels can also be mapped to a
“silence” source. Each output allows independent gain adjustment and optional polarity inversion.