In Broadcast - September 2021 - 16

16
www.inbroadcast.com | Vol: 11 - Issue 9 | September 2021
InFile
Audio Codecs
Dedicated Stream Processing
Just as you wouldn't dare send a signal out
over the air without audio processing, you
shouldn't send your streams out unprepared
either... By Adrian Pennington
W
ithout audio processing, your
stream will be sorely lacking
in the performance arena and may
even turn listeners off. And just as you
wouldn't use an AM processor on an
FM signal, you need dedicated stream
processing designed to maximize a
bitrate-reduced audio stream. In other
words, you match the medium with
processing designed for that medium.
WorldCast Systems
recently
announced a major new release of
its APT IP Codec range. Designed for
MFN, SFN, and STL applications, the
APT Codec 4.0 includes several new
features. The most significant include
the " revolutionary " APTmpX algorithm
and SynchroStream, both available as
software options.
APTmpX is
billed
as
compression
the
world's
first and only non-destructive MPX/
composite
algorithm
to save network bandwidth while
maintaining the original composite
signal quality.
SynchroStream
and processing is the way to go. Of
course, you can always buy a 150 Euro
stream encoder and/or find stream
encoding software for free using " no
name " codecs, but ultimately, you get
what you pay for.
" There is a reason why the Telos
Alliance Z/IPStream line of software
and hardware stream encoders/
processors is the broadcast stream
leader, "
says
the
company
which
is a new APT
technology " for precise and stable "
time-synchronous IP transmission
and playout of audio content. It is,
WorldCast
say,
the
most
effective
tool for optimizing analogue FM-SFN
networks with the most precise time
alignment.
SynchroStream is supplied as a
software option on the existing APT
IP Codec range and equips the APT IP
Codec for use in FM-SFN networks. It
utilizes an externally supplied 10MHz
clock and the 1pps signal
as time
reference (e.g., from satellite).
" Over 20 000 APT codecs are
deployed worldwide. This new 4.0
release
faithfully
reflects
the
high
APT-standards for reliability, latency,
scalability, and feature-density; all at a
competitive cost. "
If you are serious about your sound,
then tried and trusted stream encoding
comprises six leading audio brands.
" It's because we built our first
streaming encoder in 1997. While most
stream encoders stop at encoding,
Z/IPStream products include audio
processing from Omnia, the market
leader in broadcast audio processing.
Each Z/IPStream encoder comes
equipped with cutting-edge Omnia
processing, whether it is 3-band
Omnia processing or Omnia.9
processing. (Most Omnia broadcast
audio processors include a stream
processing option, as well.) As an
added bonus, because Z/IPStream
has Omnia processing built in, it
gives broadcasters processing their
AM, FM, and HD signals with Omnia
a consistent sound in all formats,
including streaming. All mediums can
lock in your signature sound thanks
to consistent Omnia audio processing
across the board.
Additionally,
Z/IPStream features
real Fraunhofer (MP3 and AAC) codecs
for the best possible sound. Cheap or
free stream encoders don't sound as
good. They use open-source knockoffs,
meaning you aren't getting the
real deal. They also don't include
all the convenience features that
Z/IPStream-designed
for
up-does.
Whether
purpose-built
hardware
stream
encoding and processing from the
ground
it's
or software, Telos Alliance gives you
options that meet your needs. "
a
appliance
The Comrex ACCESS NX Mixer accessory
docks to the ACCESS NX and expands the
audio I/O to four mic/line selectable XLR
Inputs & four stereo headphone outputs
" Our proprietary technology offers
an expanded array of techniques
including congestion detection,
redundant transmission, forward error
correction,
and
retransmission.
CrossLock
deadline-sensitive
allows
you to use several multiple network
devices simultaneously to increase
available network bandwidth and
WorldCast Systems recently announced a major new release of its APT IP Codec range
The Telos Alliance Z/IPStream 9X/2 stream encoder and processing software
Comrex has spent the last several
decades engineering remote audio
broadcasting solutions that are
intuitive, efficient, and reliable. For
the last 15 years, it has been refining
IP audio codecs the latest of which is
ACCESS NX, a portable IP audio codec
designed for remote applications.
The company explains that ACCESS
NX was designed around CrossLock -
the " secret sauce " that powers Comrex
IP audio codecs.
improve reliability. In Bonding Mode,
ACCESS NX allows you to combine
multiple WiFi, cellular, or hardline IP
connections, so you can make the most
of any available bandwidth.
If a network starts to fail, or if
bandwidth changes, then CrossLock's
adaptive
management
engine
applies the most appropriate tools
for the current network conditions.
It calculates the highest quality and
lowest delay combination of available
networks to achieve the desired target
rate, and will adjust settings to ensure
that your connection remains stable.
And it does all this automatically, so
you don't have to worry about it.
ACCESS NX features a small chassis
that you can hold in your hand, which
makes it perfect for any application
where presenting talent is out of the
studio. The unit's battery can support
up to 6.5 hours of talk time, comes
with two I/Os built in, but can be
expanded to 6 I/Os when plugged into
the optional mixer. Control is via its
5-inch capacitive touch screen for easy
management and configuration on the
fly.
Systembase has designed and
manufactured audio codecs since
1991.
Its
mission
is
to
create " an
extremely reliable IP audio codec to
serve the broadcast industry " , mainly
radio transmitter sites and outside
broadcast for television. It also aims
to further expand its range of SIP
(Session Initiation Protocol) audio
codecs, working closely with partners
at SIPitPro, to provide seamless SIP
audio connectivity solutions.
The inclusion of SIP on the
Systembase C510ip-s IP audio codec
provides a baseline of compatibility
with most manufacturers of IP
http://www.inbroadcast.com https://inbroadcast.com/news/telos-intros-iport-high-density-multi-codec-gateway https://www.comrex.com/products/access-nx-ip-audio-codec/ https://inbroadcast.com/news/apt-codec-range-ramps-up-its-performance-with-the-4.0-system-release

In Broadcast - September 2021

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

Contents
In Broadcast - September 2021 - Intro
In Broadcast - September 2021 - Cover1
In Broadcast - September 2021 - Cover2
In Broadcast - September 2021 - Contents
In Broadcast - September 2021 - 4
In Broadcast - September 2021 - 5
In Broadcast - September 2021 - 6
In Broadcast - September 2021 - 7
In Broadcast - September 2021 - 8
In Broadcast - September 2021 - 9
In Broadcast - September 2021 - 10
In Broadcast - September 2021 - 11
In Broadcast - September 2021 - 12
In Broadcast - September 2021 - 13
In Broadcast - September 2021 - 14
In Broadcast - September 2021 - 15
In Broadcast - September 2021 - 16
In Broadcast - September 2021 - 17
In Broadcast - September 2021 - 18
In Broadcast - September 2021 - 19
In Broadcast - September 2021 - 20
In Broadcast - September 2021 - 21
In Broadcast - September 2021 - 22
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In Broadcast - September 2021 - 31
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In Broadcast - September 2021 - 78
In Broadcast - September 2021 - Cover3
In Broadcast - September 2021 - Cover4
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