MV230USB0 pages
SEIT 1928
KONDENSATORMIKROFONE
FÜR STUDIO - UND MESSTECHNIK
M I C R OT E C H G E F E L L
MV 230 digital
- MK 221
Digital measurement microphone direct to PC
The MV 230 digital measurement microphone preamplifier can record directly to a PC using
a USB audio digital interface. It is necessary only for the user to install the driver. The
EASERA, SI++ and PAK measurement systems can be used amongst others for example.
The AES42 interface of the microphone performs the transfer of measurement data and
supplies power to the microphone preamplifier.
In contrast to studio microphone technology so far, there are no other measurement systems
using AES42; AES3, also known as AES/EBU, has become the established interface in the
measurement technology field. Microtech has combined suitable phantom powered
microphone preamplifiers with the M-Audio soundcard. The M-Audio card has a USB
interface which also provides the voltage for the microphone powering.
USB-Audio-Interface for
1/2" measurement microphone preamplifier
MV 230digital
with MK 221
and MH 93
The system consists of the MK 221 measurement microphone capsule MV 230 digital ,
measurement amplifier, 3-pin XLR-connecting cable, digital USB audio interface and a USB
cable. Using an internal polarization voltage of 200 V, all measurement capsule can be used
for either free or diffuse field operation within the audible, infrasonic or ultrasonic ranges
(1 Hz to 40 kHz), encompassing the lowest to the highest levels.
The capsule connects to the impedance converter stage of the MV 230 digital providing a
dynamic range greater than 130 dB. The signal is amplified in one channel of the 24 Bit-ADconverter and attenuated in the other path. With a capsule having a sensitivity of 50 mV/Pa for
example, a measurement signal between 15 dBA and 146 dB will be present in both channels,
but in one channel this signal will always lie more than 40 dB outside the limit of resolution.
MICROTECH GEFELL GMBH GEORG - NEUMANN - PLATZ D-07926 GEFELL
INTERNET http://www.microtechgefell.de e-mail info@microtechgefell.de
TEL. ++49 (0)36649 / 882-0
FAX ++49 ( 0) 36649 / 882 11
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