feature audio for video
Audio: the next
on specific criteria (profiles), The key to this workflow is
automatically. adaptability and automated
generation
Summarising the overall picture of a intelligence (whether controlled via a
typical file-based workflow, once media asset management system, via
content has been ingested (eg from hot folders or manually).
Continued from Page 17. legacy systems such as tape or from
and correction engine to adapt to a
another file-based system) the file is Opportunities & choices
wide range of content needs,
free to move around within the IP
including file-based conversion of
infrastructure from node to node - to With the start of terrestrial analogue
content stored in the Dolby E format
be held within media storage waiting switch off and the arrival of free to air
to Dolby Digital, Dolby Digital Plus,
to be processed for a specific end HD and interactive services fast
and Dolby Pulse.
platform or use case, or once becoming a mainstream reality, more
processed to be transferred to be than ever before broadcasters,
Upmixing (Stereo to 5.1)
File-based
placed upon a playout server ready for aggregators, operators and post
workflow diagram.
release. houses need to evaluate their
To adapt legacy two-channel audio
workflows and technology
for use in 5.1-channel applications.
infrastructures to ensure they are
This process engine is based on a
ready to drive their next generation
specially developed algorithm which is
broadcast models forward.
not prone to centre channel build-up
In the current economic climate,
and creates a wider natural-sounding
brave and bold decisions have to be
sweet spot. This algorithm also
made with the full broadcast picture in
ensures that subsequent downmixing
mind - to ensure the right
is free from artifacts which typically
technologies are selected to work
occur elsewhere. Using file-based
together within the most efficient
workflow technology, audio files can
workflows.
be stored and processed in faster than
The decisions that are being made
real time to allow them to be
today will dictate the shape of the
encoded in a variety of formats based
broadcast industry of tomorrow.
Lunar landing
Continued from Page 19.
networking, but the Apollo integrates
all of this in the desk's CPU/router,
giving the newly designed Hydra2
networking protocol a central role in
the process. The low-power, low-
heat 8U rackmount CPU houses slot-
in cards containing the technology at
the heart of the console: cards
currently in production include the
Bluefin2 DSP, a 8192-by-8192 router,
a router expansion card, the CPU
itself, I/O cards, and the power
SFP, or 'mini-GBIC' connectors that
combined mixer systems with
supply. Remote I/O boxes are in
will accept either format.
distributed processing.
development in analogue, MADI, AES,
For operational security, each of
It's forward-thinking, slightly
and SDI formats, and are available
the Apollo's critical
abstract features like the last of these
with either optical fibre or copper
DSP/Router/Control Processor and
and Apollo's well-thought-out
connections, as Apollo's cards have
PSU elements comes supplied with a
assignable control surface that seem
redundant spare. As on previous
furthest from the fixed routing and
Calrec consoles, these automatically
controls of the traditional consoles
switch over in the event of failure,
that Calrec built in its early years - but
and the spare cards can be hot-
this merely emphasises the hard work
swapped without affecting audio in
the company's designers have put into
the system.
Apollo to ensure that it remains
Hydra2's routing infrastructure
competitive. Bearing in mind the
allows multiple Apollo CPUs to be
current rate of change in the world of
linked together to make even larger,
broadcast technology, it's dangerous
distributed routing configurations.
to talk of future-proof products, but
Future development may even allow
the open-ended, scalable potential
the creation of stand-alone routers
designed into the key technologies
with separate external control, so
such as Bluefin2 and Hydra2 suggests
users can create large-scale
that Apollo's prospects are set fair.
20 l ibe l may/june 2009 l www.ibeweb.com
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