Synapse DDP84, Инструкция по установке и эксплуатации

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The DDP84 Card
Introduction
Dolby Laboratories, with Dolby Digital Plus, is targeting at the next
generation of digital transmission and optical formats. The advantage of
Dolby Digital Plus is a channel count of up to 7.1 (13.1 in the future) and
bit rates of about 50 percent of normal Dolby Digital.
The calculation power of the DDP84 make a simultaneous encoding of 4
individual stereo channels (languages) to 4 Dolby Digital (Plus) 2.0
streams. It can even decode Dolby E to encode the decoded audio to
Dolby Digital (Plus).
Application
An important application is the transcoding of normal Dolby Digital to
Dolby Digital plus for cable head-ends. This gives a data rate reduction of
50% for the audio path. The DDP84 includes a Dolby E decoder. This
enables the decoding of Dolby E and encoding that into Dolby Digital
(plus).
Key Features
The DDP84 is a stand alone Dolby Digital Plus encoder. It will support the
following encoding algorithms:
•
Up to 4 times 2.0 Dolby Digital (Plus) outputs.
•
5.1 Dolby Digital (Plus) + 2.0 Dolby Digital (Plus)
•
Dolby Pro Logic II
•
Individual offset delay per input
•
Individual gain control per input (except bitstream input)
•
Able to handle all AES/EBU input formats
•
Full audio channel shuffling
•
Ability to use the Synapse ADD-ON bus for in- and output
purposes.
•
Decoding Dolby E and encoding to Dolby Digital (Plus)
Program
Procedure
This card can be updated with new firmware when new firmware versions
are released by Axon. You can download the .spf file from our website
when new releases are announced. To upgrade the DDP84 you can follow
the instructions as described in the ‘reprogramming cards quick-guide’,
downloadable via our website.
When the DDP84 is updated with a new .spf file, the card will need about
6 minutes
to start up after the card is ready programming. All LEDs will
be blinking and the encoder status item (in de status menu) will be
indicating ‘
programming
’. Only the
input LEDs
are showing the
progress.