In Broadcast - September 2013 - 74


I N T E R N A T I O N A L

WWW.INBROADCAST.COM | ISSUE 23 - SEPTEMBER 2013

N E W S

InMEDIA
Sonifex Presents New Audio
For TV Products
S

onifex are exhibiting over a
dozen new products at this
year’s IBC.
Commenting on the products to
be debuted at IBC2013, Marcus
Brooke, Managing Director of Sonifex
said: “IBC is the main platform for
Sonifex to launch and showcase new
product designs and this year we
have a number of broadcast product
additions to interest our customers.
“Our new talkback and
communications products include
two headphone amp belt-packs
and GSM/PSTN comms links for our
talkback controller”.
The new portable, battery powered
belt packs are the CM-BH4W 2/4-wire
headphone amp with speaker and the
CM-BHA headphone ampliﬁer with
limiter and loudspeaker, for use in
live applications such as in-the-ﬁeld
news reports.
The CM-BH4W uses audio
transformers at its input and output,
providing galvanic isolation and
ensuring that communications are
loud and clear. It can operate in
4-wire and IFB modes with an AGC
to maintain output level, using a

74

Sonifex’s CM-BH4W headphone
amp features a speaker

talk switch which can be latching
or momentary.
The CM-BHA has a wide incoming
signal gain and an adjustable limiter to
prevent and indicate excessive levels.
Both units have a long battery life
(up to 200 hours on one 9V battery)
and a low battery warning LED.

InTEST

Chromatec Sets Conversion Standard
wo new mini-converter products
have now been added to the
Chromatec audio metering range.
The IPM-16 mini-converter is
ideal for monitoring audio and
video presence in transmission
or production environments and
to check that audio is within predetermined limits and in phase.
The IPM-16 supports the display
of embedded audio as vertical bar
graphs superimposed on throughgoing video and also provides an
effective in-picture alarm system
for both audio and video errors.
Up to four groups (16 channels) of
embedded audio may be displayed
simultaneously, superimposed

T

The IPM-16 supports the display
of embedded audio as vertical bar
graphs superimposed on video

in four groups
on the video.
Each audio group
can be assigned a
different meter type
selectable from –
DIN PPM, BBC
PPM, Nordic PPM,
VU, Extended VU,
ARD+9, AES/EBU.
Vi d e o a l a r m s
include video sync
loss, black (loss
of luminance) and
freeze frame. Audio
alarms include embedded audio/
AES audio carrier loss, audio loss
(low-level), audio over level, out of
phase. All alarms can be turned on/
off for individual channels (or pairs
where applicable).
Up to four phase correlation
bars can be assigned with
each bar representing a pair of
matching channels.
Two EBU R128 compliant
loudness meters may be displayed,
with each one allowing up to ﬁve
channels to contribute to the
loudness levels.
Two channels of analogue audio

Chromatec’s IPM-16 in-picture
audio and video meter

monitor outputs may be derived
from any input, as well as up
to eight audio channels on the
HDMI 1.4a output.
The IPM-16-EXT allows an
additional 16 channels of external
audio to be metered. The metering
can be any mixture of the embedded,
digital AES or analogue audio inputs.
The products are conﬁgured via
USB connection and simple PC
control application, which can also
be used to upload ﬁrmware updates

and to monitor alarms.
The user has access to a wide
range of controls to fully customise
each meter type. Up to 16 sets of
conﬁgurations can be stored on the
IPM-16 and quickly selected by a
switch on the size of the box.
Optional accessories include
audio input and monitoring cable
assemblies and a carry case to
protect the units, cables and
power supplies.

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