Ensemble Designs BrightEye 70 User Manual

This user guide provides detailed information for using the BrightEye™70
HD/SD AES Embedder/Disembedder unit.

The information is organized into the following sections:

• Product Overview

• Functional Description

• Applications

• Rear Connectors

• Operation

• Front Panel Controls and Indicators

• Using The BrightEye Control Application

• Warranty and Factory Service

• Specifications

• Glossary

BrightEye-1

HD/SD AES

Embedder/Disembedder

User Guide

Revision 3.1 SW v1.0.0

BrightEye 70 HD/SD AES Embedder/Disembedder

PRODUCT OVERVIEW

The BrightEye 70 is a dual rate, eight channel audio embedder or disembedder
for 1.5 Gb/s high definition video signals or for 270 Mb/s standard defintion
signals. Four AES ports automatically configure for inputs or outputs when the
module is configured for Mux or Demux.

Selection of Mux or Demux mode, 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.

The BrightEye 70 includes an eight channel audio mixer with channel swap and
shuffle capability that allows you to completely rearrange and remix audio
channels. It provides precise control over audio level, up to 2 dB of gain to com­pensate for low level sources. All audio processing is prerformed at full 24 bit res­olutionby a digital signal processor (DSP).

Delay is adjustable up to one second. The Data mode operation allows embedding
or disembedding of Dolby E or AC3 signals.

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

FUNCTIONAL DESCRIPTION

When configured as a multiplexer as shown in the functional block diagram
below, the BrightEye 70 has one serial digital video input and four AES inputs.
The four AES streams are sample rate converted (allowing the use of asyn­chronous audio) then processed in the input selector and mixer/shuffler. The
selected groups are then embedded into the video stream. The output of the
module is a digital stream that contains the original video signal and four audio
pairs.

BrightEye-2

BrightEye 70 Multiplexer (Embedder) Mode Functional Block Diagram

When configured as a demultiplexer as shown in the block diagram below, audio
signals present in the incoming video signal are extracted, processed as desired,
and delivered as standard AES digital audio streams.

BrightEye-3

BrightEye 70 Demultiplexer (Disembedder) Mode Functional Block Diagram

BrightEye 70 HD/SD AES Embedder/Disembedder

APPLICATIONS

The BrightEye 70 is a highly versatile embedder/disembedder. Because of this
versatility and its compact form factor, the BrightEye 70 is very useful in applica­tions where size and versatility are important. Examples of possible BrightEye 70
multiplex and demultiplex applications are given below.

Embedder (Mux) And Disembedder (Demux)

In this application, BrightEye 70 can be used to multiplex video and audio
together to feed a video server. The output from the video server can then be fed
to anther BrightEye 70 where the audio can then be demultiplexed for another
application.

Embedder (Mux)

In this application, serial digital audio from a router are combined into a single
SDI output with embedded digital audio.

BrightEye-4

BrightEye 70 Multiplex and Demultiplex Application

BrightEye 70 Multiplex Application

Mux Demux

Video
Router

AES

Audio

Sources

HD or SD
SDI Video

Ch 1/2

Ch 3/4

Ch 5/6

Ch 7/8

BE 70

HD or SD
SDI Video

with

Embedded

Audio

Video
Server

HD or SD
SDI Video

with

Embedded

Audio

BE 70

HD or SD
SDI Video

Ch 1/2

Ch 3/4

Ch 5/6

Ch 7/8

AES

Audio

Output

HD or SD SDI Video

AES

Audio

Sources

from Camera

BE 70

Ch 1/2

Ch 3/4

HD or SD
SDI Video

with Embedded

Audio

Video

Router

BrightEye-5

REAR CONNECTORS

All connections to the BrightEye 70 are made on the rear of the unit. Refer to the
illustration below.

Power Connection

Connect a modular power supply to the 12 volt DC power input connection on the
far left of the unit. Use the locking ring to secure it.

USB Connector

The USB connector is used to provide more comprehensive control, diagnostics,
and upgrades to the unit from a PC or Mac. Use the BrightEye Control applica­tion included on CD-ROM to make adjustments as described in the OPERATION
section of this user guide.

HD/SD SDI Out

This output is a digital stream that contains the original video signal and four
AES pairs.

When the module is configured as a multiplexer, the AES BNCs are configured as
inputs. This external AES audio is multiplexed into the SDI output as desired.

When the module is configured as a demultiplexer, this output contains the
original video and the original embedded audio. The audio signals present in this
incoming video signal are extracted and delivered as outputs on the AES BNCs.

AES 1/2, AES 3/4, AES 5/6, and AES 7/8

The AES 1/2, AES 3/4, AES 5/6, and AES 7/8 BNCs are either inputs or outputs
depending on how the module is configured (Mux or Demux). Each connector
inputs or outputs an AES stream (each stream containing 2 channels.)

When the module is configured as a mulitplexer (Mux), the AES BNCs are inputs.

When configured as a demultiplexer (Demux), the AES BNCs are outputs.

HD/SD SDI In

This BNC input accepts an HD or SD SDI serial digital video signal with or
without embedded audio. When the module is configured as a demultiplexer,
embedded audio present on this input stream can be extracted, processed on the
module, then output from the module on the AES audio BNCs as outputs.

When configured as a multiplexer, external AES audio can be inserted into the
SDI input stream or replace existing embedded audio.

BrightEye 70 Rear Connectors

BrightEye 70 HD/SD AES Embedder/Disembedder

BrightEye-6

OPERATION

Control and operation of the BrightEye 70 is performed from the front panel or
with the BrightEye Control application.

Some control settings are only available with the BrightEye Control application. These
parameters cannot be monitored or controlled with the front panel.

Front Panel Controls and Indicators

The front panel of the converter, shown in the figure below, provides status indi­cators and control over module setup.

Status Indicators

The following status indicators are provided on the front panel:

In
Illuminate green when a valid input is present on the SDI In connector.

Mode
The currently selected mode (Mux or Demux) is illuminated green.

Group

The AES group (1, 2, 3, or 4) currently targeted for embedding or disembedding
(depending on module configuration) illuminates green when the selected group
contains audio, and illuminates red when the selected group does not contain
audio.

Gain

These controls allow for quick adjustment of Gain level for the four channel pairs.
Gain adjustment is done in conjunction with the VU indicators. For independent
channel adjustment, and other controls, use the BrightEye Control application.

VU
VU output level and the status of the Gain adjustment for each of these channel

pairs is indicated by the state the VU and Gain indicators for each of the channel
pairs. The VU indicator illuminates red when the audio level exceeds the
headroom level set by the user (with the Peak Indicator control in
BrightEye PC or Mac).

BrightEye 70 Front Panel

NOTE:

BrightEye-7

Additionally, the VU indicator illuminates orange when the output is above 0 VU,
illuminates green when the output is above -20 VU, and doesn’t illuminate when
the output is below -20 VU. The Gain indicator illuminates red when the gain
level has been adjusted off from unity by the user. The 0 VU point corresponds in
the digital domain to the digital reference level (-18 or -20 dBFS.)

Pwr (Power)

Illuminates green when power is applied to the converter and the internal
voltage regulator is functioning correctly.

ADJUSTING PARAMETERS FROM THE FRONT PANEL

Use the Mode, Right Arrow, and Left Arrow buttons to select and adjust
parameters from the front panel.

Pressing the Mode button activates the front panel for editing and tabs between
each section of editable parameters.

Pressing the Right Arrow or Left Arrow advances the selection within a given
section of parameters, or increases (Right Arrow) or decreases (Left Arrow) the
value of a selected parameter.

The LED of an edited parameter will blink for 15 seconds, after which time its value is
stored in memory. If power is interrupted before this 15 second timeout period has
elapsed, the edited state will not be not saved.

The controls and their indicators are described below:

Mode

This control selects the Mux behavior with the following choices:

Mux – Embed audio into the SDI signal, replacing the existing embedded
content or cascading, augmenting the existing embedded content.

Demux – Disembed audio that is in the SDI signal.

NOTE:

BrightEye 70 HD/SD AES Embedder/Disembedder

Group Select

This control selects the AES group for embedding with the following choices:

1 – AES Group 1

2 – AES Group 2

3 – AES Group 3

4 – AES Group 4

Ch 1/2, Ch 3/4, Ch 5/6, and Ch 7/8 VU Indicators

These indicators provide information about the level of the analog outputs on
these channels. More detailed indicators are available through the BrightEye
Control application.

Ch 1/2, Ch 3/4, Ch 5/6, and Ch 7/8 Gain Adjustment Indicators
These controls allow for quick adjustment of Gain level for these two channel

pairs. For independent channel adjustment, and other controls, use
BrightEye PC or Mac.