Overloads; Community Noise - Larson Davis SoundAdvisor 831C Reference Manual

4.4.9 Overloads

FIGURE 4-17 Overall Tab: Overloads Page

4.4.10 Community Noise

The metric CNEL is
TAKE NOTE
equivalent to LDEN.
FIGURE 4-18 Overall Tab: Community Noise Page
For the formulas
LEARN MORE
used to determine the LDEN,
see "Day/Night" on page 6-8.
SoundAdvisor Model 831C
The Overloads page shows the number of times, the percent of time,
and the amount of time that the Sound Level Meter and the OBA have
been overloaded.
The Community Noise page displays the values LDN and LDEN which
are commonly used to evaluate community noise. Since community
noise metrics are based upon full day measurements, they do not
present valid data for measurements less than 24 hours duration.
LDEN
Although the standard ISO 1996-2:2007 specifies default values used in
the calculation of LDEN, in practice the time values defining the day,
evening and night periods may be changed, as permitted by Directive
2002/49/EC of the European Parliament and of the Council of 25 June
Overall Displays 4-14