Page 38 - Noisy-User-Manual-2017-en

36 2 Program concepts

 Automatic generation of backup copies (see Create backup copy
automatically) e.g., on a portable USB mass storage device (stick or
hard disk)
 Extended options for automatic saving of a measurement (Non-
recurrent, Hourly, Daily, Weekly and Monthly, see Save
automatically)
 Automatic execution of list evaluation after completion of
measurement (incl. meteorology statistics)

 Option 6: NOISY module “Meteorology”
You may want to record weather data parallel to performing sound level
measurements. This recording of meteorological data is made possible
with this option.
The significant functions of this option are:
 Activation of the ASCII stream weather station via serial interface
 Up to 12 weather sensors can be defined (depending on the hardware)
 Classification of the wind direction (either 10° or 30° sectors)
 Data sampling rate from one second to one hour (in increments of one
second)
 Threshold value triggering via the meteorology channels

 Option 7: NOISY module “Frequency analysis”
With the frequency analysis option, you can extend your NOISY with a
frequency analysis tool. This allows you to determine the frequency ratios
at any given moment in your sound level trend.
 Recording the sound pressure signal as an audio wave file via the
sound card
 Determination of the third-octave and octave spectra from the time
signal data of the audio file in accordance with the cursor position in
the sound level trend
 Documentation by means of the clipboard (export of graph or text)
 Normalization of the amplitude of the third spectrum by means of the
corresponding total level in the sound level or specification of a
reference level correction