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The KM D miniature digital microphones
The KM D microphones are the digital counterparts of the
well-known, successful 180 miniature microphone series. In
the analog realm, the KM 184 in particular is regarded as a
standard for miniature condenser microphones, and is one of
the best-selling of all Neumann microphones.
Six different capsule characteristics are provided. The KM D
microphones have a modular design, so that the KM D output
stage can be combined with different capsules.
The S/PDIF and AES/EBU Connection Kits
In addition to the DMI digital microphone interface, Neumann
also provides „Connection Kits“ at an attractive price, to per-
mit the simple connection of individual microphones to the
widely used S/PDIF and AES/EBU interfaces. This allows nu-
merous users to enjoy easy access to „Neumann sound direct
to disk“, without the extensive functionality of the compre-
hensive DMI. Power is provided by an included plug-in power
supply unit.
Of course it is possible to upgrade to the DMI at any time, in
order to take advantage of the additional configuration capa-
bilities and DSP functions.
Attractive Starter Sets for an economical entry
into the field of digital microphone technology
Starter Sets provide a simple and economically very attrac-
tive introduction to digital microphone technology. These in-
clude a KM 184 D or TLM 103 D microphone and a Connection
Kit for an S/PDIF or AES/EBU connection. For entry-level,
budget-conscious users who are planning for future recording
equipment, an interesting aspect is that an A/D converter is
already integrated into the digital Neumann system and, in
addition, a preamplifier is no longer required. Moreover, the
difficulty of selecting compatible equipment is avoided, since
all of the components are provided by a single source. It is
thus ensured that the Neumann microphone sound can be cap-
tured directly on a digital recording medium with no colora-
tion.
The DMI digital microphone interface
Solution-D microphones operate in accordance with the
AES 42 standard. For the interpretation of the microphone
data and remote control of the microphone, corresponding
subsequent equipment is therefore required. The DMI-2 digi-
tal microphone interface, for instance, is suited to this pur-
pose. The DMI-2 is a separate, two-channel device which
makes the microphone signals available in AES/EBU format.
(The DMI-8 eight-channel version will be available shortly.)
Microphones of other manufacturers that are compatible with
the AES 42 standard (e.g. the Sennheiser MKH 8000 with
MZD 8000) can of course also be connected to the digital mi-
crophone interface.
The DMI is operated with the aid of the Neumann RCS remote
control software, installed on a PC or Mac desktop computer
or laptop. The connection between the computer and DMI
takes place via a USB port and a USB/RS 485 interface con-
verter. If a large number of microphones is used, several DMIs
can be cascaded.
In addition to a word clock input and output, the DMI also has
an internal word clock generator. If no master word clock sig-
nal, e.g. from a mixing console, is detected at the word clock
input, the internal master word clock of the DMI is automati-
cally used to synchronize the two microphone channels, and
the signal is directed to the word clock output.
External commands such as „On air“ and „Mute“ can be con-
trolled via a 9-pin user port.
The RCS remote control software
All parameters are displayed on the screen, and can be
changed at any time. During production, the audio engineer
can monitor the operating status and parameters of all of the
connected microphones and, if necessary, can change the set-
tings quickly and easily.
The parameters displayed include the directional characteris-
tic, pre-attenuation, low-cut filter, gain, various microphone
status indicators, command indicators, and mute and phase
reverse functions. Signal levels and the operation of the com-
pressor or limiter can also be monitored on the screen.
Information transmitted by the microphone, such as the name
of the manufacturer, model and serial number, is also dis-
played for clear identification of the connected microphones.
Moreover, it is possible to input additional information such
as the name of the sound source. Settings for the complete
microphone setup can of course be stored and retrieved as re-
quired.
The System
Description
TRUE ECONOMY:
Lower investment costs, since
separate A/D converters and
preamps are no longer needed.
This also means space and weight
savings (e.g. in the OB van).
TRUE TIME SAVINGS:
Reduced time require-
ments and personnel
costs, particularly due to
faster post production
processing.