In Broadcast - November 2021 - 71

www.inbroadcast.com | Vol: 11 - Issue 11 | November 2021
71
InForm
The Evolving Art of Broadcast
Systems Design
cont'd...
being used for academic review.
Systems designed and installed for
the large studio and gallery include
studio lighting, gallery furniture,
vision and audio monitoring with
55-inch displays, two-way gallery/
studio
communications,
wireless
presenter talkback and teleprompt.
The new equipment was integrated
with existing elements including dual
lighting rails, three studio cameras,
studio automation, a vision mixer and
an audio mixing desk. The smaller of
the two TV studios is a single-camera
version of the large studio, with
similar infrastructure. For the central
apparatus room, we recommended
and integrated a router mainframe,
analog to SDI conversion and SD/HD/
UHD standards conversion. Two-way
camera and control system, broadcastquality
monitors and talkbacks were
provided, along with all studio to
central apparatus room infrastructure
cabling. Specific system components
were a studio camera with box lens,
multiviewer and studio floor monitors,
wireless microphones, video recording,
teleprompting, control desks and
monitor mounts. Training in the
operation and maintenance of the
systems was provided on completion
of the project, which also included the
option of long-term technical support.
Robotic camera tracking
ITN commissioned us to provide a
robotic camera tracking system for
the main news studio at its London
headquarters. This involved mounting
infra-red sensor cameras on existing
ITN camera systems. Installation
began with the placing of new markers
across the studio and calibration of
the two lens types currently in use.
Three sensors and processors were
connected to pedestal-mounted
cameras. A fourth system was
mounted to a camera and lens on a
manually controlled jib and the fifth
fixed to a hand-held camera and lens.
Mapping is a vital element of any
virtual studio system. This involved
moving the camera about in the studio
to create a full 3D map of the markers.
We then performed final testing of the
tracking system and graphics, finetuning
as the results were evaluated.
Being ITN's national news studio, it
was decided that the deployment
should take place over a weekend. The
project was completed successfully
with the new system on air for the
Sunday evening bulletin.
Robotic
camera
control and
IP
networking were a central element of
new broadcast television production
facilities completed for one of the
world's longest established news
agencies. This project included the
design and integration of two new
studios plus associated galleries
and a master control room. We also
upgraded the graphics and character
generation to support perspectivebased
image manipulation and realtime
animation. Audio infrastructure
included IP networking bridged to the
router which performs the embedding
and distribution switching. Being very
news focused, the agency has many
incoming audio contribution feeds so
we integrated a SIP server.
Broadcast news production
Alaraby Television (Figure 2)
transmits via
satellite
to
viewers
throughout the Middle East, North
Africa and Europe, as well as globally
via cable and online. News and
documentary programmes form
a core part of its output. Alaraby
selected us to design, engineer and
integrate a complete system from
content acquisition right through
to presentation. Primary objectives
were to advance the network's news
reporting, ingest, production and
playout systems to latest-generation
workflow, allowing staff at its London
headquarters and around the world to
operate with maximum efficiency and
creativity as a unified team.
The front end of the system Alaraby
Television required
channels
of news ingest
comprises 12
capturing
to a dedicated server. This feeds
through to a 75-client news production
platform with full asset management
resources, production storage and
cloud-connected
browsing.
Studio
playout is fully automated and includes
a multichannel MPEG gallery playout
server. The graphics system provides a
range of image generation capabilities
including a scrolling text news ticker,
virtual studio generation plus a video
wall feed. We were also commissioned
to upgrade eight craft edit suites,
replacing a third-party installation with
latest-generation video editors, plus
network switching and transcoding. A
new data centre was equipped which
could be operated alongside the
channel's existing data centre during
the transition to the new system. This
included designing and integrating
KVM control interfaces allowing
newsroom and edit suite operators to
switch between the legacy and latestgeneration
systems.
As is normal on projects of this kind,
we partnered closely with Alaraby's
management team and studio staff to
ensure that full broadcast continuity
was maintained throughout the entire
process of upgrading. Programme
rehearsal, live presentation, post
production and playout all proceeded
as normal throughout the upgrade.
Much of the installation work was
performed at night so that studio
operation could proceed without
disturbance. Precautions were also
taken to ensure Covid-19 safeguarding.
Summary
The transition from SDI to IP-based
infrastructure looks set to continue
in the case of large-scale new-build
projects, especially
outside broadcasting which
for remote
offers
the advantage of smaller production
teams being needed at the actual
event location. Broadcasters and
independent media companies with
a significant legacy of SDI operation,
on the other hand, tend to favour the
technology that has worked reliably
and economically for them over many
years.
IP is the logical
choice
for
links
between multiple studio sites as it can
span practically unlimited distances
at relatively low cost. Hardware costs
in relation to SDI are a separate
matter though IP hardware pricing
is becoming ever more competitive.
The cost saving potential of IP has yet
to be fully realised but IP technology
is certainly disruptive enough to
stimulate a re-appraisal of what may
be possible as a support, expansion
and choice of solution. Latency is still
the key factor.
Figure 2 - Alaraby Television London Studio 1
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In Broadcast - November 2021

Table of Contents for the Digital Edition of In Broadcast - November 2021

Contents
In Broadcast - November 2021 - Intro
In Broadcast - November 2021 - Cover1
In Broadcast - November 2021 - Cover2
In Broadcast - November 2021 - Contents
In Broadcast - November 2021 - 4
In Broadcast - November 2021 - 5
In Broadcast - November 2021 - 6
In Broadcast - November 2021 - 7
In Broadcast - November 2021 - 8
In Broadcast - November 2021 - 9
In Broadcast - November 2021 - 10
In Broadcast - November 2021 - 11
In Broadcast - November 2021 - 12
In Broadcast - November 2021 - 13
In Broadcast - November 2021 - 14
In Broadcast - November 2021 - 15
In Broadcast - November 2021 - 16
In Broadcast - November 2021 - 17
In Broadcast - November 2021 - 18
In Broadcast - November 2021 - 19
In Broadcast - November 2021 - 20
In Broadcast - November 2021 - 21
In Broadcast - November 2021 - 22
In Broadcast - November 2021 - 23
In Broadcast - November 2021 - 24
In Broadcast - November 2021 - 25
In Broadcast - November 2021 - 26
In Broadcast - November 2021 - 27
In Broadcast - November 2021 - 28
In Broadcast - November 2021 - 29
In Broadcast - November 2021 - 30
In Broadcast - November 2021 - 31
In Broadcast - November 2021 - 32
In Broadcast - November 2021 - 33
In Broadcast - November 2021 - 34
In Broadcast - November 2021 - 35
In Broadcast - November 2021 - 36
In Broadcast - November 2021 - 37
In Broadcast - November 2021 - 38
In Broadcast - November 2021 - 39
In Broadcast - November 2021 - 40
In Broadcast - November 2021 - 41
In Broadcast - November 2021 - 42
In Broadcast - November 2021 - 43
In Broadcast - November 2021 - 44
In Broadcast - November 2021 - 45
In Broadcast - November 2021 - 46
In Broadcast - November 2021 - 47
In Broadcast - November 2021 - 48
In Broadcast - November 2021 - 49
In Broadcast - November 2021 - 50
In Broadcast - November 2021 - 51
In Broadcast - November 2021 - 52
In Broadcast - November 2021 - 53
In Broadcast - November 2021 - 54
In Broadcast - November 2021 - 55
In Broadcast - November 2021 - 56
In Broadcast - November 2021 - 57
In Broadcast - November 2021 - 58
In Broadcast - November 2021 - 59
In Broadcast - November 2021 - 60
In Broadcast - November 2021 - 61
In Broadcast - November 2021 - 62
In Broadcast - November 2021 - 63
In Broadcast - November 2021 - 64
In Broadcast - November 2021 - 65
In Broadcast - November 2021 - 66
In Broadcast - November 2021 - 67
In Broadcast - November 2021 - 68
In Broadcast - November 2021 - 69
In Broadcast - November 2021 - 70
In Broadcast - November 2021 - 71
In Broadcast - November 2021 - 72
In Broadcast - November 2021 - 73
In Broadcast - November 2021 - 74
In Broadcast - November 2021 - Cover3
In Broadcast - November 2021 - Cover4
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOWNYexpo2017
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOW2017
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201701
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_INREVIEW2016
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201612
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https://www.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOWNYexpo
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_20110708_DEMO
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