In Broadcast - NAB SHOW 2017 - 41

41

www.inbroadcast.com | NAB Show 22-27 April 2017 | Product Preview

Next Generation
Audio for Broadcast
By Peter Poers,
Managing Director...

T

he world of broadcast audio is on
the verge of a major revolution.
Numerous "3D Immersive" formats are
under development and will find their
way into the mainstream of broadcast
production and distribution in the near
future. Unlike the world of channel
based coding as we are accustomed
to, these new formats will support
more channels and/or object based
audio coding. For the end consumer,
there will be two major benefits from
this new approach, a greater sense
of involvement or immersion, and a
degree of personalization.
Greater involvement will come from
an increased channel count typically
by the addition of overhead "height"
channels. This creates a "3D" sound
image where the viewer or listener is
immersed in audio in all dimensions.

Object based audio will give the
user the option to personalize their
experience by selecting from a number
of audio sources, and controlling the
level and maybe even the position
in the mix. In object based audio,
an "object" is essentially an audio
stream with accompanying descriptive
metadata. The metadata carries
information about where the object
is in the mix and at what level, and is
used to render the audio experience
for the end user. Objects may be
static and placed at a fixed point in
the mix, or dynamic where they are
panned across the three dimensional
soundscape.
Does this mean multiple speakers
need to be installed to avail of these
new benefits? Not necessarily,
although of course the best experience

Revolution: 3D immersive sound

will result from a full installation of
discrete speakers at both floor level
and overhead, however where this
is not practical, the final "renderer"
will re-create the mix as accurately
as possible based on the actual
number and location of speakers the
end user has. An increasing number
of soundbars that are designed to
sit underneath a display are already

available to create a surround
experience
without
consuming
valuable space.
What does this all mean for the
broadcaster? A complete re-build of
existing facilities and a total re-think
about the audio processing equipment
required for outside broadcast
vehicles? Well, if we
get it right, it should
entail just relatively
minimal changes to
overall workflow and
hardware, but inevitably
some
additions
to
production
and
distribution equipment.
In the case of object
based
audio,
the
metadata appropriate
for the final codec
needs to be created
and added to the audio
for distribution, and the engineer
needs to be able to monitor this
complex mix (and all the potential
downmix variations) to ensure that
the distribution chain is fed with all
available objects correctly. Loudness
levels should also be considered in
respect of existing standards and there
should be provision for local insertion
of content at any point in the chain.
www.jungeraudio.com


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Table of Contents for the Digital Edition of In Broadcast - NAB SHOW 2017

In Broadcast - NAB SHOW 2017 - Intro
In Broadcast - NAB SHOW 2017 - Cover1
In Broadcast - NAB SHOW 2017 - Cover2
In Broadcast - NAB SHOW 2017 - 3
In Broadcast - NAB SHOW 2017 - 4
In Broadcast - NAB SHOW 2017 - 5
In Broadcast - NAB SHOW 2017 - 6
In Broadcast - NAB SHOW 2017 - 7
In Broadcast - NAB SHOW 2017 - 8
In Broadcast - NAB SHOW 2017 - 9
In Broadcast - NAB SHOW 2017 - 10
In Broadcast - NAB SHOW 2017 - 11
In Broadcast - NAB SHOW 2017 - 12
In Broadcast - NAB SHOW 2017 - 13
In Broadcast - NAB SHOW 2017 - 14
In Broadcast - NAB SHOW 2017 - 15
In Broadcast - NAB SHOW 2017 - 16
In Broadcast - NAB SHOW 2017 - 17
In Broadcast - NAB SHOW 2017 - 18
In Broadcast - NAB SHOW 2017 - 19
In Broadcast - NAB SHOW 2017 - 20
In Broadcast - NAB SHOW 2017 - 21
In Broadcast - NAB SHOW 2017 - 22
In Broadcast - NAB SHOW 2017 - 23
In Broadcast - NAB SHOW 2017 - 24
In Broadcast - NAB SHOW 2017 - 25
In Broadcast - NAB SHOW 2017 - 26
In Broadcast - NAB SHOW 2017 - 27
In Broadcast - NAB SHOW 2017 - 28
In Broadcast - NAB SHOW 2017 - 29
In Broadcast - NAB SHOW 2017 - 30
In Broadcast - NAB SHOW 2017 - 31
In Broadcast - NAB SHOW 2017 - 32
In Broadcast - NAB SHOW 2017 - 33
In Broadcast - NAB SHOW 2017 - 34
In Broadcast - NAB SHOW 2017 - 35
In Broadcast - NAB SHOW 2017 - 36
In Broadcast - NAB SHOW 2017 - 37
In Broadcast - NAB SHOW 2017 - 38
In Broadcast - NAB SHOW 2017 - 39
In Broadcast - NAB SHOW 2017 - 40
In Broadcast - NAB SHOW 2017 - 41
In Broadcast - NAB SHOW 2017 - 42
In Broadcast - NAB SHOW 2017 - 43
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In Broadcast - NAB SHOW 2017 - 45
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In Broadcast - NAB SHOW 2017 - 57
In Broadcast - NAB SHOW 2017 - 58
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In Broadcast - NAB SHOW 2017 - 60
In Broadcast - NAB SHOW 2017 - 61
In Broadcast - NAB SHOW 2017 - 62
In Broadcast - NAB SHOW 2017 - 63
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In Broadcast - NAB SHOW 2017 - 90
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In Broadcast - NAB SHOW 2017 - 99
In Broadcast - NAB SHOW 2017 - 100
In Broadcast - NAB SHOW 2017 - 101
In Broadcast - NAB SHOW 2017 - 102
In Broadcast - NAB SHOW 2017 - 103
In Broadcast - NAB SHOW 2017 - 104
In Broadcast - NAB SHOW 2017 - 105
In Broadcast - NAB SHOW 2017 - 106
In Broadcast - NAB SHOW 2017 - Cover3
In Broadcast - NAB SHOW 2017 - Cover4
In Broadcast - NAB SHOW 2017 - S1
In Broadcast - NAB SHOW 2017 - S2
In Broadcast - NAB SHOW 2017 - S3
In Broadcast - NAB SHOW 2017 - S4
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201705
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOW2017
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201703
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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
http://www.nxtbook.com/nxteu/lesommet/inbroadcast_201611
http://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
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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
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