Ensemble Designs BrightEye 71 HD/SD 8 Channel Analog Audio Embedder/Disembedder - Manual (Page 4)

www.ensembledesigns.com BrightEye 71 and 71-F - Page 4
HD/SD 8 Channel Analog Audio Embedder/Disembedder User Guide TM BrightEye 71 and 71-F
PRODUCT OVERVIEW
The BrightEye 71/71-F 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 definition signals. The analog audio ports
automatically configure for inputs or outputs when the module is configured for Mux or Demux.
Selection of Mux or Demux mode, audio group selection, VU status, and gain can be monitored and
adjusted from the front panel. More advanced functionality is available via the BrightEye Control
application.
The BrightEye 71/71-F 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 performed
at full 24 bit resolution by 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
71/71-F has one serial digital video input and eight analog audio inputs. The audio 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.
Optical Output with the 71-F
The BrightEye 71-F offers one optical output and one SDI output.
8 x 8
Input
Selector
24 bit
Audio
A to D
HD/SD SDI In
HD/SD SDI Out
(follows input)
2 Ch
2 Ch
2 Ch
2 Ch
8 Channel
Mixer
Shuffler
and
Delay
Embedder
Balanced
Analog
Audio Inputs
Ch 1/2
Ch 3/4
Ch 5/6
Ch 7/8
24 bit
Audio
A to D
24 bit
Audio
A to D
24 bit
Audio
A to D
HD/SD SDI Out
(follows input)
Optical Out
BE 71-F
BE 71/71-F
BE 71
BrightEye 71 / 71-F Multiplexer (Embedder) Mode Functional Block Diagram