AudioControl MP-200, Руководство пользователя

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MP-200 Operation Manual
Using The MP-200
Microphone Preamplifier
To make a useful measurement of any system, you need to eliminate
as many unknown items as possible. For audio analysis, this means
that you need to know what signal is fed into a system and have a
microphone/preamp with a flat frequency response to listen to what is
coming out of the system. The two primary methods of getting a
known test signal are to: 1) Use a test signal such as pink noise that
has an equal amplitude at all frequencies (flat response), or 2) Use a
second input channel on the analyzer to monitor the signal fed into the
system and mathematically compare the output signal to the input.
Not all analyzer systems have this capability to compare two signals.
Important Note: The MP-200
is designed to be used with
the AudioControl Industrial
CM-10 microphone only. Use
with any other microphone
will produce unpredictable
results.
Basic information about the MP-200 and CM-10 most analyzer systems
need to know:
• Mic Sensitivity
24.5 mVrms @ 94 dB SPL (1 Pascal)
• Mic Gain (dB)
Gain (*See appendix for more info on Gain)
0 dB 0
10 dB 3.16
20 dB 10
30 dB 31.62
40 dB 100
Basic System Setup
The basic application setup with the MP-200 system is very simple: Plug one or two CM-10 microphones
into the MP-200 preamp, connect the line level input if necessary, and feed the line output of the preamp
into your analyzer or measurement system. Once you have connected the system together, operation of the
MP-200 is straightforward: Set the MIKE GAIN control to the amount of signal increase you need from
the CM-10 mic to your analysis system.