12
AVG Measuring Mode
The AVG mode is intended for measuring the time-average sound pressure level of the low
frequency sound signals. The length of the analysed part of the signal equals to 1/2 second.
Current value of the sound pressure level is calculated from several spectral components
separately for each analysed part of the signal. The resultant value is arithmetic average of peak
figures, selected within the number of analysable parts of signal, specified in the
“P”
parameter.
“139.7 dB”
is a section displaying the main result
“50 Hz”
is a section displaying current frequency
“P1”
is the defined period value. For changing the period, use
button 2
.
“120.3 dB”
is a section displaying the current result
“T:None”
indicates duration of the current measurement in seconds. For
starting/stopping the measurement press
button 4
.
Before starting measurement the 5
seconds long countdown is provided.