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Product overview, Functional description, Demultiplex operation – Ensemble Designs BrightEye 20 Analog and Digital Audio Embedder or Disembedder User Manual

Page 2: Brighteye-2, Brighteye 20 functional block diagram

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BrightEye 20 Analog and Digital Audio Embedder or Disembedder

PRODUCT OVERVIEW

The BrightEye 20 is a compact solution for embedding or disembedding. With SDI
input and output, and both analog and digital audio I/O, it is field configurable for
embedding or disembedding.

Mux/Demux mode, audio input source, AES group selection, VU status, and gain
adjustment can be monitored and adjusted from the front panel. More advanced
functionality is available via the BrightEye Control application.

A glossary of commonly used video terms is provided at the end of this manual.

FUNCTIONAL DESCRIPTION

BrightEye 20 is a versatile Audio Mux/DeMux (Embedder/Disembedder). It
supports four channels of audio, with both analog and digital I/O. Complete
control over audio levels and mixing and swapping between channels is provided
through the BrightEye Control application.

Demultiplex Operation

When configured as an Audio Disembedder (demultiplexer), BrightEye 20 extracts
the digital audio content being carried in an SDI video stream and produces
simultaneous digital audio (AES) and analog audio outputs.

The Group Select control is used to identify which of the four possible audio
groups is to be disembedded. The front panel Group Select control will illuminate
green to indicate that the selected group has been detected in the incoming video.
If that group is not present, the control will illuminate red.

The four output channels of the disembedder feed a 4 channel mixer/shuffler. This
mixer provides precise adjustment of audio level for each channel, and the ability
to assign input channels to any combination of output channels. Additionally,
signal phase inversion can be selected on a channel by channel basis to address

BrightEye-2

4x4

Input

Selector

AES Port 1/2

Sample Rate

Converter

Analog Audio I/O

AES

Formatter

AES Port 3/4

SDI In

SDI out

AES
Rcvr

Sample Rate

Converter

2 Ch

2 Ch

AES
Rcvr

4 Channel

Mixer

Shuffler

Embedder

Disembedder

4 Ch

4 Ch

Note: AES Outputs
shared with AES Inputs

4 Channel

A to D

4 Channel

D to A

BrightEye 20 Functional Block Diagram