Larson Davis SoundAdvisor 831C Reference Manual page 43

About the Overall L
FIGURE 4-11 Overall Tab: Leq Page
1.
2.
3.
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.
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
Overall data clears when the measurement is stored, or when you press
1
Reset
Octave Band page are color coded to indicate a relationship to the graphed
octave band. For example, the blue box next to the L
the blue bands in the graph. See Table 4.2, " Overall Octave Band Colors," on
page 39 to view more reference colors.
1.
L and the L
Aeq
2.
The L
Zpeak
reading of the peak detector during the measurement.
4.
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
About the Octave Band Analyzer
the meter. In Figure 4-12, notice that the numerical values on the
SoundAdvisor 831C Display In SLM Mode
of the overall measurement.
AS
(Z frequency weighting) is the overall
data corresponds to
Aeq
Page.
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