Larson Davis SoundAdvisor 831C Reference Manual page 35

Module 4 Using the Data Display
4.1 Understanding the Live Tab ............................................................................................... 4-1
4.1.1 About the SLM Page (Live Tab Page 1) ................................................................. 4-2
4.1.2 About the Big Digit Sound Page (Live Tab Page 2) .............................................. 4-3
4.1.3 About the Octave Band Analyzer Page (Live Page 3) ..........................................4-3
4.1.4 About the Normalized Octave Band Page (Live Page 4) .....................................4-4
4.1.5 About the Triggering Page (Live Page 5) ..............................................................4-4
4.1.6 About the Preamplifier Interface Page (Live Page 6) ..........................................4-5
4.1.7 About the Power Page (Live Page 7) .................................................................... 4-5
4.1.8 About the Memory Page (Live Page 8) ................................................................. 4-6
4.2 Understanding the Overall Tab .......................................................................................... 4-7
4.2.1 About the Overall SLM Page (Overall Page) ......................................................... 4-7
4.2.2 About the Overall Big Digit Page (Overall Page) ..................................................4-7
4.2.3 About the Overall Leq Page (Overall Page) ......................................................... 4-8
4.2.4 About the Octave Band Analyzer Page (Overall Page) ........................................4-8
4.2.5 About the Normalized Octave Band Page (Overall Page) ................................... 4-9
4.2.6 About the Ln Percentiles Page (Overall Page) ...................................................4-10
4.2.7 About the Exceedances Page (Overall Page) .....................................................4-11
4.2.8 About the Overloads Page (Overall Page) .........................................................4-11
4.2.9 About the Community Noise Page (Overall Page) ............................................4-11
4.2.10 About the C Minus A Impulsivity Page (Overall Page) .......................................4-12
4.2.11 About the TA-Lärm Page (Overall Page) ............................................................4-12
4.2.12 About the Sound Exposure Level Page (Overall Page) ......................................4-12
4.2.13 About the Metrics Matrix Page (Overall Page) ...................................................4-13
4.2.14 Viewing the Power Page (Overall Page) .............................................................4-13
4.3 Viewing Weather Related Data .........................................................................................4-14
4.4 Understanding the Session Log Tab ................................................................................4-15
4.5 Adjusting the Graph Scale .................................................................................................4-15
4.6 Enabling or Disabling Display Tabs ..................................................................................4-16
4.1 Understanding the Live Tab
SoundAdvisor Model 831C
T
he 831C takes a measurement, and simultaneously displays that same
information in a variety of ways. Using the 831C tabs (select left or right) and
their associated pages (scroll down and up), you can take a measurement and
view the following metrics at the same time:
• Real time sound metrics
• Frequency of sound at each octave
• L , L , L of the overall or live sound
eq S PEAK
• Fast and Impulse detectors
• Temperature, GPS, and elevation of the measured sound
• The current sound, weighted for specific values
When the 831C is powered on, the Live tab is the first display you'll see. Since
the values on the Live tab show active, real-time values that the meter is
currently sensing, this page is not controlled by the
Understanding the Live Tab
9
(RUN/PAUSE) button
4-1