and configured everything properly and
starts to measure the sound level, the software will usually display something
negative, such as -33.5dB (A).
is the level with respect to the full-range
of the AD
converter and has nothing to do with the absolute sound level
we need to
calibrate the entire measurement chain : This can be done with a handheld sound
level meter, place
it close to the microphone
(not very precise),
or with a sound level calibrator (expensive).
you have to this this again once
you touched the gain on the sound card or mixer for Windows.
is no longer calibrated.
In addition, overload conditions are difficult to detect since
all the signal stages are unknown. Actually, a full measurement would be
required to document the maximum and minimum level ranges.
is already evident from this brief description that you have to be very careful
when you measure the sound
fall regularly in several major pitfalls and even professionals have quickly
forgotten a little thing, and this
causes a measurement with significant errors.
that our new
microphones solves all these problems.
Finally, we are at the point:
the software, connect the
launch the software
and measure immediately calibrated absolute sound
is possible, because software, microphones, preamps, and soundcard are one
is calibrated by the manufacturer.
software also controls the gain
the windows mixer. Furthermore,
are displayed correctly, so you know which level ranges
can be measured correctly. The
measuring ranges can be selected simply by a
these are all things that you
expect from hand sound level meter
since many years, no
matter what price range. And consequently you can expect this from
high quality PC-measuring systems as well.
reliable measurements of
you can will need a calibrator.
only (as with any hand sound
for the periodic review and not to get rough values.
USB measurement microphones,
that are currently on the market, are all USB audio class compliant.
work with any software, but the above-described automatic level calibration,
work only on systems where software and microphone are perfectly matched
and the software controls also
is obviously the case with our complete