beautypg.com

Complete proc amp functions, Audio support, Dolby decoding and encoding – Ensemble Designs 7555 HD / SD Video Processing Frame Synchronizer User Manual

Page 8: Configurable mux or demux

background image

www.ensembledesigns.com

Avenue 7555, 9550, 9550-XA - Page 8

7555 HD/SD, 9550 3G/HD/SD, and 9550-XA 3G/HD/SD Video Processing Frame Synchronizers

Complete Proc Amp Functions

The modules have a full-featured Proc Amp capability for adjustment of every signal parameter. Proc
controls include Gain, Chroma, Pedestal and Hue.

Audio Support

All three modules include a full-featured, sixteen-channel audio mixer. The channel swap and shuffle
capability allows you to completely rearrange and remix audio channels. It provides precise control
over audio level, with up to 12 dB of gain to compensate for low level sources. Delay is adjustable up
to one second. The audio mixer can be used for embedded audio and for audio sourced from the AES
or analog inputs.

The 9615 AES and analog audio I/O software key option is required if you want to use the AES or
analog inputs and outputs. For the 7555 and 9550 modules, the 9615 option provides four AES input/
output ports for eight channels of I/O and also provides four channels of analog audio I/O. For the
9550-XA module, the 9615 option provides six AES input/output ports for twelve channels of I/O,
along with four channels of analog audio I/O.

Dolby Decoding and Encoding

Any of the three modules can be fitted with Dolby encoding and decoding options. The 7615 Dolby
decoding option can be fed from either an AES input or an AES stream disembedded from the
incoming SDI signal. The resulting discrete surround signals are then selectable as inputs to the sixteen
channel mixer/shuffler.

The 7630 Dolby E encoder and 7635 Dolby D/AC-3 encoder are fed from selected outputs of the
sixteen channel mixer/shuffler. The resulting encoded bitstream can be output both on an AES output
and embedded into the SDI outputs.

Additionally, the 7555, 9550 and 9550-XA fully support embedding and disembedding of encoded
multi-channel bitstreams such as Dolby E and Dolby D/AC-3.

LevelTrack Audio Loudness Control AGC and Compliance Options

The 9670 LevelTrack Audio Loudness Control AGC software key can be added as an option. LevelTrack
provides control for keeping audio levels consistent in program material. The 9690 Audio Compliance
and Monitoring Software can be added for compliance verification and archiving.

Configurable Mux or Demux

When configured as a multiplexer, the 7555 and 9550 have one serial digital video input and four AES
audio inputs. These four AES streams are embedded into the video stream. AES inputs are sample rate
converted, allowing the use of asynchronous audio. The output of the module is a digital stream that
contains the original video signal and four AES pairs, or eight channels.

The 9550-XA has one serial digital video input and six AES audio inputs, supporting six AES pairs, or
twelve channels.

When configured as a demultiplexer, audio signals present in the incoming video signal are extracted
and delivered as standard AES digital audio streams.