In Broadcast - December 2020 - 64

64

www.inbroadcast.com | Vol: 10 - Issue 12 | InReview 2020

InFile

Transport of Delights
Cobalt has been active
recently with RIST such
as with the CDI 9992-ENC

Contributing Editor Andy Stout
investigates how IP Transport is
evolving to meet the latest demands
from the industry...
" When someone says " IP Transport " ,
different people will think about
different aspects, " comments Suzana
Brady, Cobalt Digital's Vice President
of Sales - Americas' Region. " Some
will think " transport using compressed
streams over the Internet " and use
something like RIST. Some will think
" uncompressed video transport over
IP inside the studio " and look at the
SMPTE-2110 standards. The available
bandwidth in the internet itself
is always going up, and protocols
such as RIST are being developed in
coordination with the groups that are
looking at uncompressed transport.
These will meet and go hand-in-hand
in the (possibly near) future. "
Cobalt is an active participant in both
efforts and Brady says the company
plans to bring products to the market
as the standards evolve. It has been
particularly active recently though
with RIST (Reliable Internet Stream
Transport), the industry specification
for a common protocol for low-latency
reliable video transport over the
internet that has been developed out
of the Video Services Forum. RIST
is baked into many recent Cobalt
devices such as the 9223 and 9992ENC
encoders, the 9990-DEC and 9992-DEC
decoders, and the SafeLink Gateway.
" With the current pandemic,
it becomes very important for
broadcast operators to support at
home production, " she says, noting
that there needs to be an ideal
middle ground between studio-based
workflows and the need for people to
operate it remotely.

" Broadcasters can still have the
equipment in the studio, but the
operators can be remote, if they
design their plant properly. In order
to use the cloud, broadcasters need
to have the bandwidth to move all
the content in and out; if they still use
their studio, but remotely control it,
the bandwidth needs are far less, and
they can still leverage the equipment
they have. The key aspect of this is
to use a flexible design with remote
controlled routing and processing
elements, and monitoring points with
remote capabilities along the signal
flow. "

" Getting the network
architecture and the control
right are probably the
most important technical
decisions that
any IP project
need to make "

Olivier Suard, VP of Marketing

Sony recently acquired IP media
network specialists Nevion and
its two main products Virtuoso,
a software-defined media node
capable of performing a variety
of functions in the network, and
VideoIPath, an orchestration and
SDN control software. Olivier Suard
is Vice President of Marketing for the
company.
" The big topics of discussion right
now are the use of 5G and Cloud in
live production, " he says. " Mobile
technology is already established
as means to connect cameras, but
5G brings the prospects of lower
latency, higher bandwidth and most
importantly defined quality of service
(QoS) - all of which are very important
for live production. Sony and Nevion
are actively involved in exploring the
full potential of 5G through projects
like 5G-VIRTUOSA.

Suard says that IP technology
is being deployed for multiple
applications in live production
(including
contribution,
remote
production and facilities), and
therefore the specific pain-points
vary. However, he points out that
all applications share the need for
performance, scalability and security.
" Getting the network architecture
and the control right are probably the
most important technical decisions
that any IP project need to make, " he
comments.
" As an industry, we tend to obsess
about technology, products, and
features. This has served us well
over the years, but as we move from
baseband to IP and on to virtualization,
broadcasters and service providers
now need transformative solutions
more than just products. That's
why people, not product features,
are what count the most in the
complex environment our industry is
experiencing now. So any broadcaster
or service provider considering a move
to IP media networks needs to put
expertise and experience top of the list
of their requirements. "
Zixi has been stockpiling both in
recent months, with an emphasis on
5G as well as some important product
wins as industry movers and shakers
Red Bee Media and Telstra have both
standardised on its Software Defined
Video Platform for the delivery of
their Channel Store aggregation and
distribution platform and Global Media
Network respectively.
The 5G experiments have been
particularly
interesting,
though,
working with Verizon to see how a
major broadcaster's 4K live broadcast
feed (and 8K test feed) can be
delivered over Verizon 5G using AWS
Wavelength edge computing. The end
game is to test how content providers
can distribute live streams across
broadcast media workflows with
super-low latency without the need for
satellites.

Robert
Gambino,
Director,
Solutions
at Harmonic, list
the current pain points in video IP
transport workflows as latency, and
the difficulty and cost associated with
getting assets into or out of the cloud.
" Harmonic has specifically focused
on these areas with extensive
investments in cloud technologies we do a lot of work with both Azure
and AWS, and all of our functionality
is available as a service in the cloud video compression with our EyeQ AI/
ML video compression algorithms,
and video transport in the shape of
Low-Latency HLS, " he says. " We get
the video into the cloud at the earliest
possible point and deliver to affiliates
or a CDN right from the cloud, which
keeps costs and complexity down. "
Low-Latency HLS means the
experience of the end user is not far
off from traditional cable delivery
models while Harmonic's VOS360
platform enables customized channel
delivery to multiple endpoints while
still delivering over a public CDN.
He maintains that a lot of existing
customer
infrastructure
isn't
configured to keep up with the
demand. " We believe that the cloud
is finally advanced enough to be
a smarter capital investment than
continuing to deploy on-premises,


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In Broadcast - December 2020

Table of Contents for the Digital Edition of In Broadcast - December 2020

Contents
In Broadcast - December 2020 - Intro
In Broadcast - December 2020 - Cover1
In Broadcast - December 2020 - Cover2
In Broadcast - December 2020 - Contents
In Broadcast - December 2020 - 4
In Broadcast - December 2020 - 5
In Broadcast - December 2020 - 6
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In Broadcast - December 2020 - 73
In Broadcast - December 2020 - Cover3
In Broadcast - December 2020 - Cover4
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