SoundAdvisor Model 831C
Understanding the Overall Tab
4-8
4.2.4 About the Octave Band Analyzer Page Overall Page 4
TAKE NOTE
This feature requires the 831C-OB3 firmware option, and OBA enabled
in the measurement setup file.
Two pages on the Overall tab relate to the octave band setting you
choose in the measurement setup (1/1, 1/3, or both). The height of each
band in the graph is the amplitude of sound for that frequency. The 1/3
Octave band pages are similar, but each band represents a bandwidth
of 1/3 octave.
LEARN MORE
ust like the Live tab, you can customize the metrics on this octave
band page as shown in
4.1.3 About the Octave Band Analyzer Page
(Live Page 3)
.
The Overall tab’s octave band pages show measurement data from the
first run to the present time. Overall data clears when the measurement
is stored, or after you reset
1
the meter.
Figure 4-11
shows 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
Aeq
data corresponds to the blue bands in the graph.
FIGURE 4-11
Overall Tab: 1/1 Octave Band Page
Table 4.1 O erall Octa e and Colors
L
e
“Leq” is the average sound level of the highlighted
frequency band for the duration of the measurement.
