Leq - Larson Davis SoundAdvisor 831C Reference Manual

FIGURE 4-12 Overall Tab 1/1 Octave Band Page
Table 4.2 Overall Octave Band Colors
L
eq
L
max
L
min
SoundAdvisor Model 831C
"Leq" is the average sound level of the highlighted
frequency band for the duration of the measurement.
L is the maximum sound level of the highlighted
max
frequency band. The maximum spectrum is
determined by the Max Spec setting.
Bin Max
When set to Bin Max, it is the maximum value which
occurred during the entire measurement for that
frequency band. Since individual frequency bands
may reach their maximum levels at different times,
this spectrum might be one which never occurred at
any instant during the measurement period.
At Max
When set to At Lmax, it is the instantaneous spectrum
at the moment when the broadband maximum
occurred (such as LSmax).
L is the minimum sound level of the highlighted
min
frequency band for the duration of the measurement.
Since individual frequency bands may reach their
minimum levels at different times, this spectrum
might be one which never occurred at any instant
during the measurement period.
Overall Displays 4-10