Larson Davis SoundAdvisor 831C Reference Manual page 139

FIGURE 16-9 Locate Record Menu
Time History Octave Spectra Displays
FIGURE 16-10 Time History 1/1 Octave
5
Use the to jump
your cursor from
frequency or record
number.
To learn
LEARN MORE
more about octave
page displays, see
"Data Display" on
page 4-1.
Changing Displayed Record
5
Use the button on
TRY THIS
each visible Time History
page to test which values you
can change on each page.
SoundAdvisor Model 831C
Enter the desired record number and that record will highlight. You can
use the top left and right softkeys to jump to the first or last record.
Notice that there are 101 records in this example, and if you choose a
number higher than 101, it will default to 101, overriding your request.
If you indicated OBA metrics, multiple pages will be available to view
on the Time History tab.
The selected record number for which data is being displayed is
indicated at the bottom of the page, the last value stated, as you
navigate through the pages.
Octave Displays
The 4 and 6 keys are used to step the selected measurement record
number to the right or left, respectively.
To change the octave view, use the 5 to jump your cursor from record
number to frequency, and use the 4 and 6 keys to highlight to the left
or right so that the levels can be displayed for different frequency
bands.
Viewing Time History Data
The highlighted band
is the L average
?eq
sound level of for the
duration of the
measurement at that
frequency.
4 6
Use the and
keys to highlight
the desired band
and the numerical
values below will
reflect the
information at that
octave.
16-8