Data Labels; Live Displays; Slm Page - Larson Davis SoundAdvisor 831C Reference Manual

4.2 Data Labels

4.3 Live Displays

To learn about
LEARN MORE
the tabs, pages, and general
overview of the display of the
SoundAdvisor see "Displays
and Icons" on page 2-6.
8
Use the
TRY THIS
keys to navigate up or down
through pages.

4.3.1 SLM Page

FIGURE 4-1 Live Tab: Sound Level Profile Page
L , 1 second
Aeq
averaging, using
frequency
weighting and
detector selected in
setup.
User-selected
SLM parameter
SoundAdvisor Model 831C
The labels for sound metrics in the SoundAdvisor are designated by
international standards. For many displayed values, the frequency and
time weighting are indicated in the name of the metric.
For example, L
using the Slow detector. Sound pressure level is often referred to as
SPL.
When the SoundAdvisor is turned ON, the default first display is the Live
tab. The measurements displayed on the Live tab are always active,
real-time measurements. The displayed values are not controlled by
the 9 (RUN/PAUSE) key. This allows you to view the current SPL
without disrupting any overall data.
2
or For example, suppose you are making a measurement and an
unwanted event takes place, causing you to stop the measurement.
With the measurement stopped, you can monitor the actual level on
the Live tab to be certain that the residual effects of the unwanted
event have died down before beginning a new measurement.
The profile page presents a recent history of L
second. The graph presents the last 120 seconds of the measurement.
The first numerical level displayed, L
recently graphed 1 second value. The frequency weighting, and
is the A-weighted sound pressure level measured
AS

Data Labels

The duration of the
current
measurement. This
will reset when an
auto-store occurs, or
a measurement in
reset.
L using frequency
Zpeak
weighting selected in
setup
calculated for each
Aeq
(1s) in this example, is the most
Aeq
4-2