About The Octave Band Analyzer Page (Overall Page) - Larson Davis SoundAdvisor 831C Reference Manual

4.2.3 About the Overall L
FIGURE 4-11
Overall Tab: Leq Page
1.
2.
3.

4.2.4 About the Octave Band Analyzer Page (Overall Page)

FIGURE 4-12
Overall Tab: 1/1 Octave Band Page
SoundAdvisor Model 831C
Page (Overall Page)
eq
Metrics displayed on this page are ones you chose in the measurement setup.
4.
This feature requires the 831C-OB3 firmware option, and OBA enabled in the
TAKE NOTE
measurement setup file.
The height of each band in the graph is the amplitude of sound for that
frequency. If you enabled 1/3 Octave bands in the Setup, the 1/3 Octave Band
page is similar, but each band represents a bandwidth of 1/3 octave.
LEARN MORE
octave band page as shown in
(Live Page
Overall data clears when the measurement is stored, or when you press reset
1
the meter. In Figure 4-12, notice that the numerical values on the Octave
Band page are color coded to indicate a relationship to the graphed octave
band. For example, the blue box next to the L
blue bands in the graph. See Table 4.2, " Overall Octave Band Colors," on
page 9-4 to view more reference colors.
Understanding the Overall Tab
1.
L and the L
Aeq
2.
The L
Zpeak
reading of the peak detector during the measurement.
3.
This run time stops during a pause or stop.
4.
These 3 SPL detectors give the date and time when
these metrics were met during the measurement.
L
Zpeak(max)
The highest level the peak detector has measured
during the run time of the measurement. A date and
time of occurrence is recorded with this event. It's
considered the peak hold.
L
ASmax
The highest level the SPL detector measured during the
run time of the measurement. It's considered the max
hold.
L
ASmin
The lowest level the SPL detector measured during the
run time of the measurement. A date and time of
occurrence is recorded with this event.
Just like the Live tab, you can customize the metrics on this
4.1.3 About the Octave Band Analyzer Page
3).
of the overall measurement.
AS
(Z frequency weighting) is the overall
data corresponds to the
Aeq
4-8