Ensemble Designs Bright Eye 91 User Manual
BrightEye 91 - Page 1
This user guide provides detailed information for using the BrightEye 91
HD upconverter with AES Audio.
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 91
HD Upconverter
with AES Audio
User Guide
Revision 2.4 SW v1.2.3
TM
BrightEye 91 HD Upconverter with AES Audio
BrightEye 91 - Page 2
PRODUCT OVERVIEW
BrightEye 91 upconverts standard definition (SD) signals into high definition
(HD) and performs format and aspect ratio conversion as needed. The built-in
frame synchronizer handles any asynchronous signals fed to the unit.
As video is processed, audio is processed too, since the BrightEye 91
accommodates both embedded audio and discreet AES digital audio streams. Up
to sixteen channels of embedded audio are supported. Audio mixing is available
for two of the four embedded audio groups. The AES I/O ports can be configured
for eight channels of audio input, eight channels of audio output, or four in/four
out. The audio mixer can be used for AES channels as well.
The rear-panel HDMI output connector is compatible with many LCD monitors
and allows confidence monitoring of signal feeds.
Basic controls are accessed on the front panel. BrightEye PC and BrightEye Mac
Control applications provide access to video processing functions, input and
output, and audio mixer controls that are not available from the front panel.
FUNCTIONAL DESCRIPTION
As shown in the diagram, when a standard definition serial digital video input is
fed to the BrightEye 91, the signal enters the serial digital receiver and is frame
synchronized to the reference input. Audio is disembedded and passed around the
upconversion process.
Alternately, when analog composite video is fed to BrightEye 91, the analog video
is converted at 14 bits of resolution to digital YCrCb components (601). The signal
is frame synchronized to the reference input and then fed to the upconverter.
Aspect ratio of the video output is selectable between Anamorphic, Pillar Box, or
Crop. It can also be set manually if desired.
External AES audio can be inserted into the SDI stream or replace existing
embedded audio. There are eight AES digital audio ports that can be used for
input or output. There are 3 ways to configure the audio ports: Mux 8 where the 4
AES BNCs are configured as 8 input channels, Mux 4 where 2 BNCs are 4 input
channels and 2 BNCs are 4 outputs channels, and Demux 8 where the 4 AES
BNCs are configured as 8 output channels. Audio level adjustment and channel
mixing is provided.
All 16 channels of audio are passed through. Audio is passed around the
upconversion process in order to preserve lip sync. Audio is embedded into the
video stream prior to output. Of the sixteen channels of audio, you can select one
pair to monitor through the Audio Monitor headphone jack by making a selection
from the Mon Assign control on the Audio Out menu.
The HDMI output provides confidence monitoring of the same signal that is on
the two HD SDI output BNCs.
BrightEye 91 is powered by a 12 volt DC universal power supply. This power
supply can accept an input voltage between 100 and 230 volts, at 50 or 60 Hertz.
It uses a standard IEC line cord and can be used anywhere in the world. It is
normal for the converter to be quite warm to the touch when operating.
BrightEye 91
BrightEye 91 - Page 3
For your reference, see the functional block diagram of the BrightEye 91 on this
page and the next page. The diagram appears twice, first in a portrait view, then
larger as a landscape view.
T
BrightEye 91 Functional Block Diagram, portrait view
Composite or
ri-Level Ref In
Genlock
SDI Driver
TM
HD SDI Out
SD SDI/Composite
Video In
AES Digital Audio
Inputs
Ch 1/2
Ch 3/4
Ch 5/6
Ch 7/8
Audio I/O selectable as:
Mux 8 = 8 inputs or
Mux 4 = 4 in/4 out or
Demux = 8 outputs
Analog
Decoder
Auto-Selecting
SDI
Receiver
Audio
Demux
AES Receivers
Provides embedded pass through of all 16 audio channels
Upconversion
Audio
Processing
Audio Mux
AES Transmitters
HDMI
Xmtr
Monitor
Amp
HDMI Out
Headphone
Jack
Tie Back
To AES I/O
Ports
BrightEye 91 HD Upconverter with AES Audio
BrightEye 91 - Page 4
T
BrightEye 91 Functional Block Diagram, landscape view
HD SDI Out
SDI Driver
Audio Mux
Upconversion
HDMI Out
Headphone
Xmtr
HDMI
Audio
Jack
Monitor
Processing
Amp
Tie Back
To AES I/O
Ports
AES Transmitters
Genlock
Analog
Decoder
Auto-Selecting
Video In
ri-Level Ref In
Composite or
SD SDI/Composite
Audio
Demux
AES Receivers
SDI
Receiver
Inputs
AES Digital Audio
Ch 1/2
Ch 3/4
Ch 5/6
Ch 7/8
Provides embedded pass through of all 16 audio channels
Audio I/O selectable as:
Mux 8 = 8 inputs or
Mux 4 = 4 in/4 out or
Demux = 8 outputs
BrightEye 91 - Page 5
PERFORMANCE ADVANTAGES OF THE BRIGHTEYE SERIES
When images are converted between different formats, color spaces, and
resolution geometries, the need for accuracy and fidelity are extremely important.
Whether upconverting from standard definition to HD formats, converting
between different HD formats, or downconverting to SD, extra care must be paid
to every aspect of the signal and the content of the images. The BrightEye series
of up, down, and cross converters were designed specifically with this in mind and
provide the highest possible level of signal processing quality.
Key aspects of this design are:
1) The Standard Definition analog inputs and outputs feature 12-bit
quantization, with 4-times oversampling and 4:4:4 internal processing.
This allows for better separation of real image content from artifacts.
2) The RF aspects of the electrical performance of the SDI inputs and outputs
have been carefully optimized for reliable and dependable SDI I/O
performance even under adverse conditions.
3) Input signals are upsampled to 4:4:4 spatial resolution in RGB colorspace
and adaptively de-interlaced. This enables all of the geometrical conversions
of the image to be performed in the Progressive domain. This enhancement
to the temporal resolution of the image is a key contributor to final image
quality, even if the final output is interlaced.
4) The colorspace and geometrical conversions of the signal are performed at
up to 16 bits of resolution.
5) The final output signal is built from this intermediate progressive
workspace, which is the most uncompromised version of the image possible.
It provides the best possible starting point from which to create the final
output signal.
BrightEye 91
TM
BrightEye 91 HD Upconverter with AES Audio
BrightEye 91 - Page 6
APPLICATIONS
Upconversion 1
The BrightEye 91 can upconvert SD video from many different source types. As shown in
the example below, the SD ingest signal from a satellite is fed to a BrightEye 91 where it
is upconverted to feed an HD Master Control Switcher. The other output can be sent to
another HD destination.
Upconversion 2
Standard definition cameras and other SD gear can be used with an upconverter such as
BrightEye 91. Leverage existing SD equipment by upconverting for HD production. As
shown below, a standard definition camera is fed to a BrightEye 91 upconverter. The HD
output of the BrightEye is fed to a production switcher and on to a projector. The HDMI
out provides confidence monitoring of the camera.
SD
Signal In
BE 91
Upconversion
House Reference
HD Master
Control
Switcher
Other HD
Destinations
SD SDI
SD Camera Projector
or Composite
BE 91
HD SDI
HDMI
HD
Production
Switcher
LCD
Display
BrightEye 91 - Page 7
REAR CONNECTORS
All connections to the BrightEye 91 are made on the rear of the unit. Refer to the
photo 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
Connect a PC to the USB connector to enable more comprehensive control,
diagnostics, and upgrades to the BrightEye 91. Use the BrightEye PC or
BrightEye Mac application included on CD-ROM to make adjustments as
described in the OPERATION section of this user guide.
HDMI Out
Connect an LCD monitor to this port for confidence monitoring of a video feed.
Audio Monitor
Connect a headset to this 3.5 mm mini jack to monitor the pair of audio channels
selected from the Mon Assign control on the Audio Out menu.
Input/Output BNCs
There are eight rear BNC connectors used as inputs and outputs as follows:
HD SDI Out
This BNC outputs a timed HD SDI video signal with embedded audio.
HD SDI Out
This BNC also outputs a timed HD SDI video signal with embedded audio.
SD SDI/Cpst In
This BNC input accepts an analog composite video signal or SD SDI serial digital
video signal with or without embedded audio. External AES audio can be inserted
into the SDI input stream or replace existing embedded audio.
BrightEye 91 Rear Connectors
BrightEye 91
TM
BrightEye 91 HD Upconverter with AES Audio
BrightEye 91 - Page 8
Ref In
This BNC accepts an analog composite video signal or Tri-Level Sync signal
which is used as the genlock and timing reference for the internal Frame
Synchronizer. Typically the reference signal is Color Black or Color Bars fed from
a master sync generator (such as the BrightEye 55).
AES 1/2, AES 3/4, AES 5/6, 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 unit is configured (Mux 8, Mux 4, or Demux). Each
connector inputs or outputs an AES stream (each stream containing 2 channels.)
When the unit is configured as Mux 8, the AES BNCs are inputs. When configured as Demux, the AES BNCs are outputs.When configured as Mux 4, two BNCs
are inputs and two BNCs are outputs.
OPERATION
Control and operation of the BrightEye 91 is performed from the front panel or
remotely from a networked PC with the BrightEye PC or BrightEye Mac Control
application.
Some control settings are only available with BrightEye PC or Mac. These parameters
cannot be monitored or controlled from the front panel.
Front Panel Controls and Indicators
The front panel of the BrightEye 91, shown below, provides status and control
indicators for the module.
BrightEye 91 Front Panel
NOTE:
BrightEye 91 - Page 9
Status Indicators
The following status indicators are provided on the front panel:
Embed In
Illuminates when an embedded audio stream is detected on the SD SDI/Cpst In
video input BNC. This applies only to SDI signals.
AES In
Illuminates green when a digital audio signal is detected on any of the AES
digital audio BNCs.
Audio Mode
Indicates the currently selected audio I/O mode. Choices are:
Mux 4 (4 inputs and 4 outputs), Mux 8 (8 inputs), or Demux (8 outputs).
Gain (Audio)
These controls allow for quick adjustment of Gain level for the channel
pairs.Gain adjustment is done in conjunction with the VU indicators. For
independent channel adjustment, and other controls, use BrightEye PC or
Mac. The indicator illuminates green when the gain for a given audio
channel pair is set to nominal or unity setting, or red when set to other than
unity.
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.) The indicator illuminates green when the gain
for a given audio channel pair is set to unity, red when set to other
than unity, or yellow when gain exceeds 0 VU (-20dBFS).
Mon Vol (Monitor Volume)
Illuminates green when monitor volume is set to unity, or red when set to
other than unity.
Input
Indicates the type of video signal detected on the SD SDI/Cpst In video
input BNC. Choices are SD SDI or Composite.
Ref (Reference) illuminates when a valid reference is detected on the
Ref BNC.
Output
Indicates the type of video signal selected on the HD SDI Out BNC.
Choices are 1080i, 720p, 1080p, or 1080sF.
BrightEye 91
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BrightEye 91 HD Upconverter with AES Audio
BrightEye 91 - Page 10
Mode
Indicates the output aspect ratio when upconverting the input
signal.Choices are:
• Anamorphic – original material is stretched as needed to 16:9.
• Box – Letter Box or Pillar Box is applied to the original material.
• Crop – top and bottom edges, or right and left edges are cropped off
the original material.
• Manual – Illuminates green when the output aspect ratio has been set
manually.
Bars
Illuminates green when color bars are selected as the output signal.
Graticule
Illuminates green when the on-screen aspect ratio graticule is displayed.
Gain
Illuminates green when video gain is set to unity, or red when set to other
than unity.
Pwr (Power)
Illuminates green when power is applied to the unit 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.
NOTE:
BrightEye 91 - Page 11
USING THE BRIGHTEYE CONTROL APPLICATION
The BrightEye PC and BrightEye Mac applications included on CD-ROM are
designed to allow you to configure and control the BrightEye 91 from a personal
computer. Installation and instructions for using this software application are
given in the PDF manual on disk.
BrightEye PC/Mac Control application software is included on CD that came with
your unit, or the application can be downloaded here:
http://www.ensembledesigns.com/support/brighteye-support/
If the BrightEye 91 is connected to a computer running this software, the
following menus are available for controlling and monitoring the unit.
Video In
• Input Pres – indicates the status of the video input (SD 525, SD 625,
No Input, Unknown).
• Captions In – indicates the presence of closed captioned material on the
input signal (None, Line 21, CEA 708). The BrightEye 91 translates closed
caption data from the CEA-608 standard (Line 21) to CEA-708 for closed
captioning as needed.
• Ref Source – use this control to set the reference input source. Video In
Ref indicates that the video output will be locked to the incoming video
signal. Ext Ref indicates that the video output will be locked to the external
reference input.
• Reference – indicates the status of a reference video presence
(Ref Mismatch, Ref Unlocked, Ref TLS Lock, No Reference, Ref 525
Lock, Ref 625 Lock).
BrightEye 91
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BrightEye 91 HD Upconverter with AES Audio
BrightEye 91 - Page 12
Mode
• Mode – use this control to set the aspect ratio for the upconverted HD
video output (Anamorphic, Pillar Box, Crop, Manual). When Manual is
selected, use the Manual menu to set the aspect ratio.
• Format – use this control to set the desired output format (1080i,
720p, 1080p, 1080sF). Note that closed captions are not supported for 1080p
and 1080sF outputs. The unit automatically detects the input standard.
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