In Broadcast - June 2020 - 44

44

www.inbroadcast.com | Vol: 10 - Issue 6 | June 2020

InFocus

Audio Processing and
Signal Monitoring
Contributing Editor David Kirk's two-in-one article summarises
recent developments in audio-for-broadcast signal handling
and analysis...

W

hen the transition
from analogue to
digital began to accelerate
in the early 1980s, some
industry pundits suggested
it would eliminate the need for
test equipment. The emergence of
data compression soon corrected
that fallacy, digital signal formats
such as MiniDisk and DAB, let alone
MP3, compromising the theoretical
perfection of high-sampling rate audio.
Audio Signal Processors
Avid's Pro Tools | MTRX Studio, built
in partnership with NTP Digital Audio
Denmark, is a 1U audio interface which
includes a routing matrix, AD/DA
conversion and onboard Dolby SPQprocessing. NTP DAD audio converters
and mic preamps, DADman routing
matrix, Pro | Mon 3, Eucon-control
integration, AD/DA conversion and
onboard SPQ-processing are included.
An integral speaker calibration
facility allows it to be used to can
tune a control room for any session
format, between music and audio
post-production and from mono to
immersive audio.
AxelTech's Falcon range of audio
dynamics processors feature an RDS
2.0 compliant encoder including
output
signal
logging.
Audio
processing functions include fiveband compression control, adjustable
drive and threshold, dual band
automatic gain control, three-band
equalisation and brightness control.
40 internal memories are provided
for user presets. An integral analogue
and digital test signal generator is
provided.
Cobalt's 9934-AUD-PRO-DSP audio
processor has an integral mixer
and AES/analogue codec. Included
standard are bulk and per-channel
audio delay controls to address lipsync issues. Option +TTS converts EAS

AxelTech Falcon audio dynamics processing

Avid's Pro Tools | MTRX Studio

text to digital audio speech. Options
include
Dolby
Real-Time
Loudness Levelling automatic
loudness processing, Dolby
encode/decode, and Linear
Acoustic Upmax automatic upmixing.
Comrex' Access MultiRack is a 1U IP
audio processor handling up to five
full-duplex IP audio channels. It is
compatible with all Comrex IP audio
codecs as well as the Comrex FieldTap
mobile phone app. AES67-compatible
I/O is provided on all codec channels,
along with AES3 and analogue I/O on
the first channel.
Digigram's Iqoya Talk portable
IP audio codec allows mobile live
reporting or commentary as well as
studio interviews. Features include
three mic/line inputs, an 11 input
mixer, integral audio recorder and 4G/
LTE streaming.
Evertz' EMR is a multi-format
modular router for digital audio,
analogue audio, MADI audio, data,
and timecode. A single 6U frame can
accommodate 288 x 288 AES, 288 data
ports, 288 x 288 timecode signals, or a
combination. With two 6U frames, the
EMR can accommodate 576 x 576 AES
signals with full redundancy. Inputs
and outputs are scalable in blocks of
96 or 48. A system consists of input
stage, crosspoint, and output stage.
Inovonics'
Sofia
567
AM
SiteStreamer+ is a web-enabled
audio receiver for remote signal

Using apt-X sub band ADPCM
compression in addition to G.722 and
G.711. Design features include 24 bit
analogue and AES audio interfaces.
Following a power failure, the C500
series of audio codec can fully reboot
in approximately 1 second. Systembase
codecs interface directly between
the audio equipment and the ISDN
network via standard ISDN RJ45
sockets. 12 international ISDN
standards are supported, and
can be selected from either
the front panel or the web
server interface.

Tascam ML-32D analogue-Dante-analogue converter

monitoring. Designed for installed at
a broadcast transmitter site or any
remote location with an IP connection,
it provides analogue, AES3-digital and
AoIP-streaming audio outputs. The
IP interface enables remote tuning,
streamed audio, station switching
and alarms. Internet-listening is
streamed for up to 10 listeners at once.
Multiple stations can be sequentially
monitored.
Orban's Optimod 8700i LT audio
processor offers the five-band and
two-band processing of the 8700i
and supports both analogue FM
transmission, DAB+, HD radio and
streaming. An integral phase corrector
is claimed to reduce multipath
distortion
without
compromising
stereo separation. A subharmonic
synthesizer which allows operators
to enhance older recordings. Further
features include a digital MPX output,
ITU BS-412 multiplex power control,
ITU-R BS.1770-3+ loudness control and
an RDS encoder.
Systembase's C510xr is an ISDN
audio codec for use in FM and DAB
studio-to-transmitter links, providing
up to 22.5 kHz stereo audio over a 384
kbit/s digital line.

Inovonics' Sofia 567 AM SiteStreamer+ is a web-enabled audio receiver

Tascam's ML-16D and ML-32D are 1U
analogue-Dante-analogue converters
designed to transfer 16 or 32 audio
channels over a Dante network in both
directions (A/D and D/A).
The rear panel has 25-pin D-sub
connectors giving balanced line level
I/O. Two Ethernet connectors (Dante
Primary/Secondary) are available
for redundant operation using two
separate networks. Front panel
indicators display operation status
and current sample rate as well as
overload LEDs for each input and
signal LEDs for each input and output.
Switches on the rear allow the user
to set the required maximum input/
output level.
Other settings, such as sampling
frequency, channel routing or latency,
can be made by the freely available
Dante Controller application. AES67
is supported to allow connection with
Ravenna and other compatible audio
protocols.
Telos'
Linear
Acoustic
ARC,
distributed in Europe by Broadcast
Bionics, is a 1U television loudness
processor handling up to four
independent
stereo
or
mono
programme sources. Its processing
algorithm is designed to preserve
source
audio
quality
while
ensuring compliance with loudness
recommendations such as EBU R-128
and ATSC A/85 (CALM). Loudness
logging is included for compliance
verification as a .csv file.

Telos' Linear Acoustic ARC television loudness processor


http://www.inbroadcast.com http://www.avid.com/pro-tools http://www.avid.com/pro-tools http://www.avid.com/pro-tools http://www.avid.com/pro-tools http://www.tascam.eu/en/ http://www.tascam.eu/en/ http://www.tascam.eu/en/ http://www.tascam.eu/en/ http://www.tascam.eu/en/ http://www.inovonicsbroadcast.com/product/568 http://www.inovonicsbroadcast.com/product/568 http://www.inovonicsbroadcast.com/product/568 http://www.axeltechnology.com/fm-audio-processor/ http://www.telosalliance.com/Linear http://www.axeltechnology.com/fm-audio-processor/ http://www.telosalliance.com/Linear

In Broadcast - June 2020

Table of Contents for the Digital Edition of In Broadcast - June 2020

Contents
In Broadcast - June 2020 - Intro
In Broadcast - June 2020 - Cover1
In Broadcast - June 2020 - Cover2
In Broadcast - June 2020 - Contents
In Broadcast - June 2020 - 4
In Broadcast - June 2020 - 5
In Broadcast - June 2020 - 6
In Broadcast - June 2020 - 7
In Broadcast - June 2020 - 8
In Broadcast - June 2020 - 9
In Broadcast - June 2020 - 10
In Broadcast - June 2020 - 11
In Broadcast - June 2020 - 12
In Broadcast - June 2020 - 13
In Broadcast - June 2020 - 14
In Broadcast - June 2020 - 15
In Broadcast - June 2020 - 16
In Broadcast - June 2020 - 17
In Broadcast - June 2020 - 18
In Broadcast - June 2020 - 19
In Broadcast - June 2020 - 20
In Broadcast - June 2020 - 21
In Broadcast - June 2020 - 22
In Broadcast - June 2020 - 23
In Broadcast - June 2020 - 24
In Broadcast - June 2020 - 25
In Broadcast - June 2020 - 26
In Broadcast - June 2020 - 27
In Broadcast - June 2020 - 28
In Broadcast - June 2020 - 29
In Broadcast - June 2020 - 30
In Broadcast - June 2020 - 31
In Broadcast - June 2020 - 32
In Broadcast - June 2020 - 33
In Broadcast - June 2020 - 34
In Broadcast - June 2020 - 35
In Broadcast - June 2020 - 36
In Broadcast - June 2020 - 37
In Broadcast - June 2020 - 38
In Broadcast - June 2020 - 39
In Broadcast - June 2020 - 40
In Broadcast - June 2020 - 41
In Broadcast - June 2020 - 42
In Broadcast - June 2020 - 43
In Broadcast - June 2020 - 44
In Broadcast - June 2020 - 45
In Broadcast - June 2020 - 46
In Broadcast - June 2020 - 47
In Broadcast - June 2020 - 48
In Broadcast - June 2020 - 49
In Broadcast - June 2020 - 50
In Broadcast - June 2020 - 51
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In Broadcast - June 2020 - 54
In Broadcast - June 2020 - 55
In Broadcast - June 2020 - 56
In Broadcast - June 2020 - 57
In Broadcast - June 2020 - 58
In Broadcast - June 2020 - 59
In Broadcast - June 2020 - 60
In Broadcast - June 2020 - 61
In Broadcast - June 2020 - 62
In Broadcast - June 2020 - 63
In Broadcast - June 2020 - 64
In Broadcast - June 2020 - Cover3
In Broadcast - June 2020 - Cover4
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