In Broadcast - August 2013 - 62


I N T E R N A T I O N A L

WWW.INBROADCAST.COM | ISSUE 22 - AUGUST 2013

N E W S

InMEDIA

Screen: HD Subtitling And Beyond
IBC 2013 will mark two years since Screen’s acquisition of fellow subtitle technology
company SysMedia – so what has changed in that time?
Second Screen Sync

I N T E R N A T I O N A L

N E W S

By Staff Writer,
InBroadcast

F

62

rom pioneering electronic
subtitling back in the 1970s,
Screen is renowned globally for their
high-end subtitling transmission
solutions.
S c re e n h a s m e t t o u g h
environmental standards, HD and
stereoscopic subtitling head on with
great success.
The strategic acquisition of
SysMedia towards the end of
2011 meant that Screen’s portfolio
not only included their marketleading Polistream BLACK subtitle
transmission system but also the
market-dominant subtitle preparation
suite WinCAPS.
With SysMedia came more
than WinCAPS. As well as an
established market position for
subtitle preparation, SysMedia’s
development knowledge spanned
across interactive and connected
TV content production and
publishing systems.
The fusion of these skills with
Screen’s has enabled the combined
organisation to develop solutions
for the recent and rapid changes in
broadcast technology. Challenges
were the accelerated interest in and
introduction of 4K and OTT content
and broadcast.
With the advent of HD, much of
the industry understood the need
to reduce the danger of the viewing
experience being diminished by poor
subtitles and so turned to Screen’s
Polistream Black transmission
system – a proven solution for
transmitting high-definition subtitles.
This trend has continued
throughout the HD rollout and with
the introduction of 4K, Screen has
harnessed the scalability of its
Polistream Black system to transmit
quality 4K subtitles in readiness.
Screen’s Sales and Marketing
Director, Gary Glover said: “We were
aware during the HD rollout that some
b ro a d c a s t e r s
were

Screen’s Polistream can trigger interactive second screen content

focused heavily on the quality of
the pictures and yet had considered
less the issue of destroying the
content with poor subtitles; with the
astonishing quality of 4K it seems to
be more of a distraction.
“We strongly feel that if you’re going
to offer your viewers the extraordinary
experience of watching 4K content,
then why devalue that experience
for the hard-of-hearing or foreign
language speakers with subtitles that
fail to live up to intended exceptional
presentation?”
The Polistream BLACK system
from Screen uses DVB Bitmaps
at sub-pixel level to generate high
quality subtitles and their decoder
technology is already there for
producing them in 4K.
Glover
urged
decoder
manufacturers working on 4K
to talk to Screen regarding
testing 4K streams.

OTT Subtitling
The ability of delivering premium
video services over the internet
to television and other connected
devices has presented a new and
altogether different challenge for
anyone providing accessibility
services for viewers.
Most standard web-video players
use a simple timed-text file for OTT
subtitling (e.g. SRT for YouTube,
DFXP for Flash and QuickTime and
SMIL for Windows Media Player).
However these solutions rely on this
timed-text file being interpreted by
the video player and as a result the
appearance of the subtitles can
differ between players and devices,
with positioning being particularly
inconsistent. It is evident that some
early implementations positioned text
within a black box beneath the main
video window and so the subtitles
were never actually overlaid within
the video picture area.
This means that the subtitle-author

cannot ever be sure as to how the
subtitles will appear in font, style or
position. For accurate and consistent
presentation of subtitles on web and
OTT content, Screen saw the need
for a different solution to overcome
the potential uncertainties.

Gary Glover, Screen’s Sales and
Marketing Director

Screen’s new OTT and web
subtitling system offers a method
for served web video playback
that guarantees that subtitles
are always displayed in the style
intended regardless of the video
player being used.
This effective solution also allows
the viewer to select from several
language streams and of course
switch them off altogether, without
the need to re-encode the video or
host multiple copies.
The benefits of the Screen OTT
web subtitle system include:
• The producer has full creative
control over style and position;
• Text is clear as it’s not affected by
the video compression;
• It allows the viewer to select the
language or turn subtitles off;
• It uses standard subtitle file
formats;
• It can automatically adjust a
broadcast version for the web
via EDL.
The acquired expertise and
extensive knowledge in interactive
and HbbTV technologies has inspired
new thinking at Screen, engendering
advancements in current products.

Crudely described, subtitles are a
targeted form of timed metadata, so
in their simplest form they contain
text which is timed to video.
Subtitle preparation and
management tools therefore are very
suitable for preparing metadata other
than subtitles which need to have an
association with media time.
So using standard automation
second event scheduling within a
playout system, Screen’s subtitling
transmission system Polistream, can
now be used to trigger interactive
second screen content without the
need for any secondary hardware.
Because Polistream is natively a
multi-language subtitle transmission
solution, Screen has developed a
system whereby an additional
language can be applied to transmit
a timed metadata stream as a
subtitle/caption file. This file can then
trigger web page content along with
countless viewer engagement and
advertising possibilities.
Broadcasters can dynamically link
their content with connected devices
such as tablets and smartphones.
Character and presenter
biographies can be activated
for instance; advertising around
product placement and interactive
advert break triggering can all be
efficiently employed.

HbbTV Toolbox
The PlasmaGOLD multi-publisher
product has been taken to a new
generation and to a new level
with its HbbTV Toolbox allowing
broadcasters to minimise channel
surfing by easily and quickly
providing enhanced viewer
experiences and to simply monetise
content. The HbbTV Toolbox,
which can be hosted in the cloud
or locally installed, integrates with
the delivery of video feeds into an
HbbTV environment to provide
multiple options as to how a TV
programme is viewed.
This is not just on a TV but on
second screen devices and the web
as well. The broadcaster is able to
customise the viewer experience,
where different screens can be made
available with or without overlaid
programme related information.
Features include HbbTV red button
services; delivery of scheduled
and complementary advertising
content; extended levels of
information; sponsorship enabled
live and archived data overlays;
and sponsorship enabled news and
information services.


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Table of Contents for the Digital Edition of In Broadcast - August 2013

In Broadcast - August 2013
Contents
InNEWS: Panasonic Announces AK-HC3500A Camera
InNEWS: Shotoku Elevates Newscasting for KETK-TV
InFOCUS: Camera Links – Following All the Vital Action
InTECH: Fischer Connections Solutions for Broadcast
InMEDIA: Delivering Anytime Content on Cable
InMEDIA: Screen – High Definition Subtitling and Beyond
InSOUND: DPA’s D:Dicate Recording Microphone Range
In Broadcast - August 2013 - Intro
In Broadcast - August 2013 - In Broadcast - August 2013
In Broadcast - August 2013 - Cover2
In Broadcast - August 2013 - Contents
In Broadcast - August 2013 - InNEWS: Panasonic Announces AK-HC3500A Camera
In Broadcast - August 2013 - 5
In Broadcast - August 2013 - InNEWS: Shotoku Elevates Newscasting for KETK-TV
In Broadcast - August 2013 - 7
In Broadcast - August 2013 - 8
In Broadcast - August 2013 - 9
In Broadcast - August 2013 - 10
In Broadcast - August 2013 - 11
In Broadcast - August 2013 - 12
In Broadcast - August 2013 - 13
In Broadcast - August 2013 - 14
In Broadcast - August 2013 - 15
In Broadcast - August 2013 - 16
In Broadcast - August 2013 - 17
In Broadcast - August 2013 - 18
In Broadcast - August 2013 - 19
In Broadcast - August 2013 - 20
In Broadcast - August 2013 - 21
In Broadcast - August 2013 - 22
In Broadcast - August 2013 - 23
In Broadcast - August 2013 - 24
In Broadcast - August 2013 - 25
In Broadcast - August 2013 - 26
In Broadcast - August 2013 - 27
In Broadcast - August 2013 - 28
In Broadcast - August 2013 - 29
In Broadcast - August 2013 - 30
In Broadcast - August 2013 - 31
In Broadcast - August 2013 - 32
In Broadcast - August 2013 - 33
In Broadcast - August 2013 - 34
In Broadcast - August 2013 - 35
In Broadcast - August 2013 - InFOCUS: Camera Links – Following All the Vital Action
In Broadcast - August 2013 - 37
In Broadcast - August 2013 - 38
In Broadcast - August 2013 - 39
In Broadcast - August 2013 - 40
In Broadcast - August 2013 - 41
In Broadcast - August 2013 - 42
In Broadcast - August 2013 - 43
In Broadcast - August 2013 - 44
In Broadcast - August 2013 - 45
In Broadcast - August 2013 - 46
In Broadcast - August 2013 - InTECH: Fischer Connections Solutions for Broadcast
In Broadcast - August 2013 - 48
In Broadcast - August 2013 - 49
In Broadcast - August 2013 - 50
In Broadcast - August 2013 - 51
In Broadcast - August 2013 - 52
In Broadcast - August 2013 - 53
In Broadcast - August 2013 - 54
In Broadcast - August 2013 - 55
In Broadcast - August 2013 - 56
In Broadcast - August 2013 - 57
In Broadcast - August 2013 - InMEDIA: Delivering Anytime Content on Cable
In Broadcast - August 2013 - 59
In Broadcast - August 2013 - 60
In Broadcast - August 2013 - 61
In Broadcast - August 2013 - InMEDIA: Screen – High Definition Subtitling and Beyond
In Broadcast - August 2013 - 63
In Broadcast - August 2013 - 64
In Broadcast - August 2013 - 65
In Broadcast - August 2013 - 66
In Broadcast - August 2013 - 67
In Broadcast - August 2013 - 68
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In Broadcast - August 2013 - 71
In Broadcast - August 2013 - 72
In Broadcast - August 2013 - 73
In Broadcast - August 2013 - 74
In Broadcast - August 2013 - 75
In Broadcast - August 2013 - InSOUND: DPA’s D:Dicate Recording Microphone Range
In Broadcast - August 2013 - 77
In Broadcast - August 2013 - 78
In Broadcast - August 2013 - 79
In Broadcast - August 2013 - 80
In Broadcast - August 2013 - 81
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In Broadcast - August 2013 - S1
In Broadcast - August 2013 - S2
In Broadcast - August 2013 - S3
In Broadcast - August 2013 - S4
In Broadcast - August 2013 - S5
In Broadcast - August 2013 - S6
In Broadcast - August 2013 - S7
In Broadcast - August 2013 - S8
In Broadcast - August 2013 - S9
In Broadcast - August 2013 - S10
In Broadcast - August 2013 - S11
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