In Broadcast - BroadcastAsia 2015 - 10


10

www.inbroadcast.com | BroadcastAsia | CommunicAsia | InShow Guide | 2-5 June 2015

Subtitling and Transcoding
with Cavena

Subtitling is a way of getting a better end user experience, and is mainly used to
make foreign language material accessible and to aid hearing impaired people...
How Does Subtitling Work?
Subtitling comprises of two stages -
preparation and transmission.
The preparation of the subtitle files,
along with the time code required to
synchronise the subtitle with the video,
is done ahead of transmission. These
are delivered to the transmission site
in a format defined by the broadcaster,
and stored until it is time for
transmission. Preparation of subtitles
is the work of a craftsman, which takes
years to learn. It includes a high level
of language skills, and a good eye for
the in and out times of each subtitle
row.
Subtitle
transmission
is
an
automated process. The equipment
interfaces with broadcast station
planning and automation systems,
enabling it to receive programme and
trigger information. The transmission
units then synchronise the subtitles
for playout, using the video playout

timecode. Subtitles are output, in
suitable formats, on the transmission
platform. For the end viewer it can be
in the format of open captions, always
visible or closed captions (CC), which
gives the viewer a choice of seeing
subtitles or not. There are examples
of operators in Asia with the choice of
eight different subtitle languages for
one video, using the DVB standard.
Trends In Subtitling
More and more transcoding is
required, because programmes are
distributed on multiple platforms. In
layman terms, what comes in goes
out. An example of transcoding can
be reading subtitles in VBI format and
instantaneously converting and resending subtitles in DVB format, with
no dependence on timecode. Cavena
flexible solutions for transmission can
switch between timecoded subtitle
file playout and transcoding from one

subtitling format into another. Live
subtitling is also supported.
Another
growing
market
is
Audio Description. It is a growing
requirement for broadcasters to meet
the needs of visually impaired people,
who still want to watch and follow TV
programmes. Cavena has developed
a text to speech audio description
solution, which incorporates the
flexibility and cost advantages of
subtitling. Audio Description can be
either a narrative voice or spoken
subtitle texts, the technology is the
same.
The Cavena solutions are modular
and flexible, independent from
hardware, and different formats, and
new outputs can be easily added.
Lately, the streaming format SRT has
been requested by many operators.
Henrik Moberg, visionary Managing
Director of Cavena, says, "Cavena
has been committed to deliver

Henrik Moberg
Managing Director, Cavena

robust subtitling solutions for over
25 years. Cavena's world-leading
solution of subtitling is under constant
development together with strategic
partners.
"We also assist OTT solutions, both
integrating with streaming vendors
and standalone solutions."
Please do not hesitate to contact us for
more information: www.cavena.com


http://www.inbroadcast.com http://www.cavena.com http://www.cavena.se/ http://www.cavena.se/ http://www.cavena.com

In Broadcast - BroadcastAsia 2015

Table of Contents for the Digital Edition of In Broadcast - BroadcastAsia 2015

In Broadcast - BroadcastAsia 2015 - Cover1
In Broadcast - BroadcastAsia 2015 - Cover2
In Broadcast - BroadcastAsia 2015 - 3
In Broadcast - BroadcastAsia 2015 - 4
In Broadcast - BroadcastAsia 2015 - 5
In Broadcast - BroadcastAsia 2015 - 6
In Broadcast - BroadcastAsia 2015 - 7
In Broadcast - BroadcastAsia 2015 - 8
In Broadcast - BroadcastAsia 2015 - 9
In Broadcast - BroadcastAsia 2015 - 10
In Broadcast - BroadcastAsia 2015 - 11
In Broadcast - BroadcastAsia 2015 - 12
In Broadcast - BroadcastAsia 2015 - 13
In Broadcast - BroadcastAsia 2015 - 14
In Broadcast - BroadcastAsia 2015 - 15
In Broadcast - BroadcastAsia 2015 - 16
In Broadcast - BroadcastAsia 2015 - 17
In Broadcast - BroadcastAsia 2015 - 18
In Broadcast - BroadcastAsia 2015 - 19
In Broadcast - BroadcastAsia 2015 - 20
In Broadcast - BroadcastAsia 2015 - 21
In Broadcast - BroadcastAsia 2015 - 22
In Broadcast - BroadcastAsia 2015 - 23
In Broadcast - BroadcastAsia 2015 - 24
In Broadcast - BroadcastAsia 2015 - 25
In Broadcast - BroadcastAsia 2015 - 26
In Broadcast - BroadcastAsia 2015 - 27
In Broadcast - BroadcastAsia 2015 - 28
In Broadcast - BroadcastAsia 2015 - 29
In Broadcast - BroadcastAsia 2015 - 30
In Broadcast - BroadcastAsia 2015 - 31
In Broadcast - BroadcastAsia 2015 - 32
In Broadcast - BroadcastAsia 2015 - 33
In Broadcast - BroadcastAsia 2015 - 34
In Broadcast - BroadcastAsia 2015 - 35
In Broadcast - BroadcastAsia 2015 - 36
In Broadcast - BroadcastAsia 2015 - 37
In Broadcast - BroadcastAsia 2015 - 38
In Broadcast - BroadcastAsia 2015 - 39
In Broadcast - BroadcastAsia 2015 - 40
In Broadcast - BroadcastAsia 2015 - 41
In Broadcast - BroadcastAsia 2015 - 42
In Broadcast - BroadcastAsia 2015 - 43
In Broadcast - BroadcastAsia 2015 - 44
In Broadcast - BroadcastAsia 2015 - 45
In Broadcast - BroadcastAsia 2015 - 46
In Broadcast - BroadcastAsia 2015 - 47
In Broadcast - BroadcastAsia 2015 - 48
In Broadcast - BroadcastAsia 2015 - 49
In Broadcast - BroadcastAsia 2015 - 50
In Broadcast - BroadcastAsia 2015 - 51
In Broadcast - BroadcastAsia 2015 - 52
In Broadcast - BroadcastAsia 2015 - 53
In Broadcast - BroadcastAsia 2015 - 54
In Broadcast - BroadcastAsia 2015 - 55
In Broadcast - BroadcastAsia 2015 - 56
In Broadcast - BroadcastAsia 2015 - 57
In Broadcast - BroadcastAsia 2015 - 58
In Broadcast - BroadcastAsia 2015 - 59
In Broadcast - BroadcastAsia 2015 - 60
In Broadcast - BroadcastAsia 2015 - 61
In Broadcast - BroadcastAsia 2015 - 62
In Broadcast - BroadcastAsia 2015 - Cover3
In Broadcast - BroadcastAsia 2015 - Cover4
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202403
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202402
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202401
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202312
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202311
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202310
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202309
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202308
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202307
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202306
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202305
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202304
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202303
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202302
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202301
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202212
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202211
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202210
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202209
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202208
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202207
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202206
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202205
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202204
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202203
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202202
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202201
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202112
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202111
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202110
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202109
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202108
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202107
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202106
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202105
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_PTZ
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202104
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202103
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202102
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202101
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202012
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202011
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202010
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202009
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202008
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202006
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202005
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202004
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202003
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202002
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202001
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_INREVIEW2019
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201912
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201911
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NewYork2019
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201910
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201909
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_inshowguide2019
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201908
http://europe.nxtbook.com/nxteu/lesommet/CTA-DAY3
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http://europe.nxtbook.com/nxteu/lesommet/CTA-DAY1
http://europe.nxtbook.com/nxteu/lesommet/CTA-VISITOR
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201906
http://europe.nxtbook.com/nxteu/lesommet/CTA-PREVIEW
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201905
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201904
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOW2019
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201903
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_cabsat2019
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201902
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201901
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_INREVIEW2018
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201812
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201811
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NewYork2018
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201810
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_inshowguide2018
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201809
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201808
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201806
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201805
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201804
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOW2018
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201803
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201802
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_cabsat2018
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201801
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201712
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201711
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201710
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOWNYexpo2017
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201709
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_inshowguide2017
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201708
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201707
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201705
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOW2017
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201704
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_cabsat2017
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201703
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201702
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201701
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_INREVIEW2016
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201612
https://www.nxtbook.com/nxteu/lesommet/inbroadcast_201611
https://www.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOWNYexpo
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_20110708_DEMO
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_inshowguide2016
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201609
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201607
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http://europe.nxtbook.com/nxtbooks/lesommet/inbroadcast_APAC03
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201605
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOW2016
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201604
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201603
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_cabsat2016
https://www.nxtbook.com/nxteu/lesommet/inbroadcast_201602
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https://www.nxtbook.com/nxtbooks/lesommet/inbroadcast_APAC02
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https://www.nxtbook.com/nxteu/lesommet/inbroadcast_CCW15expo
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