Ensemble Designs BrightEye 91-A User Manual
This user guide provides detailed information for using the BrightEye 91-A HD
upconverter with analog audio output.
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
TM
HD Upconverter
with Analog Audio
User Guide
Revision 2.2 SW v1.2.0
BrightEye 91-A
BrightEye 91-A HD Upconverter with Analog Audio
PRODUCT OVERVIEW
BrightEye 91-A 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-A accommodates both embedded audio and analog audio streams. Up to sixteen channels of
embedded audio are supported. Audio mixing is available for two of the four
embedded audio groups. The analog audio ports can be configured for eight
channels of audio input, eight channels of audio output, or four in/four out.
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 below, when a standard definition serial digital video
input is fed to the BrightEye 91-A, 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-A, 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,
Crop or can be set manually.
There are four analog audio Phoenix connectors that can be used for input or
output. There are 3 ways to configure the audio ports: Mux 8 where all connectors are configured as 8 input channels, Mux 4 where there are 4 input channels
and 4 outputs channels, and Demux 8 where the all connectors 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. Two channels of audio, selected by the user, can be
monitored on the headphone jack. The HDMI output provides confidence monitoring of the same signal that is on the two HD SDI output BNCs.
BrightEye 91-A is powered by a 12 volt DC universal power supply. This power
supply can accept an input voltage between 91 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.
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BrightEye 91-A
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BrightEye 91-A Functional Block Diagram
TM
Composite
or Tri-Level
Ref In
SD SDI/Composite
Video In
Balanced
Analog
Audio Inputs
Genlock
Analog
Decoder
Auto-Selecting
SDI
Receiver
Audio
Demux
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
Provides embedded pass throu
Upconversion Audio Mux
Audio
Processing
h of all 16 audio channels
SDI Driver
HDMI
Xmtr
Monitor
Amp
HD SDI
Outputs
HDMI
Out
Headphone
Jack
Ch 1/2
Ch 3/4
Ch 5/6
Ch 7/8
Balanced
Audio
Outputs
BrightEye 91-A HD Upconverter with Analog Audio
BrightEye-4
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. Real-world operation of these ports is
at nearly twice the industry accepted specification of 100 meters of digital
cable.
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-A
APPLICATIONS
Upconversion 1
The BrightEye 91-A 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-A
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-A. Leverage existing SD equipment by upconverting for HD production. As
shown below, a standard definition camera is fed to a BrightEye 91-A 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.
BrightEye-5
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SD
Signal In
BE 91-A
Upconversion
House Reference
HD Master
Control
Switcher
Other HD
Destinations
SD SDI
SD Camera Projector
or Composite
BE 91-A
HD SDI
HDMI
HD
Production
Switcher
LCD
Display
BrightEye 91-A HD Upconverter with Analog Audio
BrightEye-6
REAR CONNECTORS
All connections to the BrightEye 91-A 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-A. 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 audio channels
selected from the front panel.
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 audio can be inserted into
the SDI input stream or replace existing embedded audio.
BrightEye 91-A Rear Connectors
BrightEye-7
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).
Analog Audio Connectors
The four Phoenix connectors are either analog audio inputs or outputs depending
on how the unit is configured (Mux 8, Mux 4, or Demux). Each connector inputs
or outputs 2 channels of audio (1 pair.) When the unit is configured as Mux 8, the
four Phoenix connectors are inputs. When configured as Demux, the four Phoenix
connectors are outputs.When configured as Mux 4, two Phoenix connectors are
inputs and two Phoenix connectors are outputs.
OPERATION
Control and operation of the BrightEye 91-A 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-A, shown below, provides status and control
indicators for the module.
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.
BrightEye 91-A Front Panel
NOTE:
BrightEye 91-A
TM
BrightEye 91-A HD Upconverter with Analog Audio
BrightEye-8
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.
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 side bars are added to the original
material.
• Crop – top and bottom edges are cropped off the original material.
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.
BrightEye-9
Pwr (Power)
Illuminates green when power is applied to the converter.
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.
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-A from a
personal computer. Installation and instructions for using this software application are given in the PDF manual on disk.
If the BrightEye 91-A 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. The BrightEye 91-A translates closed caption data from the
CEA-608 standard to CEA-708.
• 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).
NOTE:
BrightEye 91-A
TM
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