In Broadcast - NAB SHOW 2018 - 8

8

www.inbroadcast.com | NAB Show 7-12 April 2018 | Product Preview

Audio Processing
with Orban Optimod
Orban have manufactured loudness controllers and
streaming audio processors since the early 70s,
as Peter Lee, VP European Operations
at Orban, explains...

I

n July 2016, we were acquired by
Day Sequerra, which develops and
manufactures broadcast equipment for
radio and television. Our engineering
team is based in San Leandro, USA, and
is headed by the company's founder
Bob Orban.
Orban Television Audio
Processing Sound that Keeps
Audiences Satisfied
Orban's flagship OPTIMOD TV
8685
surround/stereo
television
loudness controller builds on Orban's
30+ years experience in television
audio processing to provide audibly
transparent
automatic
loudness
control and dialog intelligibility
control for one surround program
(up to 7.1) and four stereo programs
simultaneously. The stereo processing
can operate in dual-mono mode, so it
can process four subchannels in stereo
or eight subchannels in mono.
The OPTIMOD TV 8685 is Orban's
second-generation
surround/2.0
processor and offers standard AES3id
and SD, HD-SDI (3G) input/output and
audio routing capabilities that include
support for optional Dolby-E encoding
and decoding.
Dual redundant power supplies help
ensure maximum uptime where a relay
provides hard-wire safety bypass from
the SDI input to the SDI output in case
of hardware failure.
The OPTIMOD TV 8685 is dialnormaware. Loudness control is excellent
when measured by the ITU BS.1770
standard (as specified in ATSC
A/85:2013) or by the OPTIMOD TV
8685's built-in CBS Loudness Meters.
When properly installed and set up, the
OPTIMOD TV 8685 will automatically
make a station compliant with the
CALM Act or EBU R128. In stereo mode,
the four stereo processors can be
made pre-emphasis aware, allowing
the OPTIMOD TV 8685 to be purchased
for immediate use with analog
transmitters, with the assurance
that it will provide no-compromise
processing for digital transmissions
when the need arises. A second use

for the stereo processors is processing
up to four different languages in DTV
program streams.

to stereo flawlessly, and the skew
correction often makes the downmix
sound better than the original stereo.

Absolute Control of Loudness
and Peak Modulation
The OPTIMOD TV 8685 includes
third-generation
CBS
Loudness
Controllers for DTV applications.
Separate loudness controllers are
available in the multichannel and 2.0
processing chains and work with both
the two-band and five-band structures.
The third-generation improvements
reduce annoyance more than simple
loudness control alone, doing so
without audible gain pumping. Attack
time is fast enough to prevent audible
loudness overshoots, so the control is
smooth and unobtrusive.

Optimod FM 8700i Orban's Flagship Processor
Featuring versatile five-band and
two-band processing for both analog
FM transmission and digital media,
the 8700i provides the industry's most
consistent sound, track-to-track and
source-to-source. This consistency
allows you to create a sonic signature
for your station with the assurance
that your signature will stay locked in,
uniquely branding your sound.

Orban's Optimix Upmixer
The
built-in,
Orban-developed
Optimix stereo to 5.0 surround
upmixer provides uncolored automatic
stereo-to-surround upmixing, plus
phase correction that ensures that
the center channel is always crisp
and intelligible. Optimix stereo 5.0
surround upmixer is 5.1-compatible.
Unlike technology derived from
consumer matrix decoders, there is
no program-dependent directional
pumping of sound sources. Unique to
this technology is extremely robust
center channel phase/skew correction
that never causes negative side effects.
It is invaluable for older material that
was originally recorded on analog
tape. Optimix's output downmixes

Exclusive
Xponential
Loudness
processing exploits psychoacoustics
to revive music that has been
"hypercompressed" in mastering and/
or passed through lossy compression,
like MP3. It's like an audio magnifying
glass that brings out hidden detail,
clarifying audio while reducing
listening fatigue and inspiring
audiences to listen longer.
The 8700i builds on 8600 V4's
outstanding reliability and industryleading sound quality. It adds Dante
audio-over-IP
connectivity
(full
AES67 support) and a hot-swappable,
dual-redundant
power
supply
with automatic failover. A digital
MPX output using a 192 kHz AES3
connection is now standard, as are two
digitized SCA inputs. A new programadaptive subharmonic synthesizer
ensures punchy bass, even with older
program material. An important

feature is a phase skew corrector/
multipath mitigator that prevents
high-frequency loss when receivers
blend to mono and minimizes energy
in the stereo subchannel without
compromising separation. The phase
skew corrector uses a proprietary
multidimensional processing program
algorithm that can simultaneously
correct several unequal delay errors,
such as multiple-microphone pickup
of a single instrument in the original
recording session combined with left/
right gap skew-in an analog mixdown
recorder.
In addition to subharmonic synthesis
and phase skew correction, the 8700i
provides stereo enhancement, HF
enhancement, equalization, AGC,
multiband
compression,
low-IM
peak limiting, stereo encoding, and
composite limiting - everything that
even the most competitive major
market station needs to stand out on
the dial.
Orban's exclusive MX peak limiter
technology decreases distortion while
increasing transient punch and high
frequency power handling capacity.
Compared to the 8500s limiter, the MX
limiter typically provides 2.5 to 3 dB
more power at high frequencies, which
minimizes audible HF loss caused by
pre-emphasis limiting. Drums and
percussion cut through the mix. Highs
are airy. "Problem material" that used
to cause audible distortion is handled
cleanly.
The 8700i's main goal is to make FM
analog broadcasts more competitive
with the cleanliness, punch, and open
high frequencies of the digital media
against which FM analog transmissions
now battle. The FM loudness wars
represent 20th century thinking; in
the 21st century, the new competition
is digital media. Thanks to its crisp,
punchy sound, the 8700i helps level
the playing field between analog FM
and its ever-more aggressive digitalonly competitors.
The
8700i
offers
8500-style
processing presets too.
Because the input/output delay
of the MX peak limiter is too long to
permit talent to monitor off-air on
headphones, 8500-style is useful
for remotes and outside broadcasts
where off-air headphone monitoring
is desired and the 8700i's low-delay
monitor output cannot be brought to
the talent. The low-delay headphone
monitor uses a separate processing
chain (based on the 8700i UltraLow-Latency processing structure)
that allows you to dial in the precise
amount of "FM clipper sound" that
your talent prefers.
www.orban.com


http://www.inbroadcast.com http://www.orban.com http://www.orban.com

Table of Contents for the Digital Edition of In Broadcast - NAB SHOW 2018

Contents
In Broadcast - NAB SHOW 2018 - Intro
In Broadcast - NAB SHOW 2018 - Cover1
In Broadcast - NAB SHOW 2018 - Cover2
In Broadcast - NAB SHOW 2018 - 3
In Broadcast - NAB SHOW 2018 - Contents
In Broadcast - NAB SHOW 2018 - 5
In Broadcast - NAB SHOW 2018 - 6
In Broadcast - NAB SHOW 2018 - 7
In Broadcast - NAB SHOW 2018 - 8
In Broadcast - NAB SHOW 2018 - 9
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In Broadcast - NAB SHOW 2018 - Cover3
In Broadcast - NAB SHOW 2018 - Cover4
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