Module 4 Data Display; Overview - Larson Davis SoundAdvisor 831C Reference Manual

Module 4
4.1

Overview ..............................................................................................................................4-1

4.2 Data Labels ..........................................................................................................................4-2
4.3 Live Displays ........................................................................................................................4-2
4.3.1 SLM Page ...............................................................................................................4-2
4.3.2 Big Digit Sound Level ............................................................................................4-3
4.3.3 Octave Band Analyzer ...........................................................................................4-4
4.3.4 Normalized Octave Band ......................................................................................4-4
4.3.5 Triggering ..............................................................................................................4-5
4.3.6 Preamplifier Interface Page .................................................................................4-5
4.3.7 Power Page ...........................................................................................................4-6
4.4 Overall Displays ...................................................................................................................4-8
4.4.1 SLM Display ...........................................................................................................4-8
4.4.2 Big Digit .................................................................................................................4-8
4.4.3 Leq .........................................................................................................................4-9
4.4.4 Octave Band Analyzer ...........................................................................................4-9
4.4.5 Normalized Octave Band ....................................................................................4-11
4.4.6 Ln Percentiles ......................................................................................................4-12
4.4.7 1/3 Spectral Ln ....................................................................................................4-13
4.4.8 Exceedances ........................................................................................................4-13
4.4.9 Overloads ............................................................................................................4-14
4.4.10 Community Noise ...............................................................................................4-14
4.4.11 C Minus A Impulsivity Page .................................................................................4-15
4.4.12 TA-Lärm ...............................................................................................................4-16
4.4.13 Sound Exposure Level Page ...............................................................................4-16
4.4.14 Metrics Matrix Page .............................................................................................4-17
4.4.15 Power Page .........................................................................................................4-17
4.5 Session Log Tab .................................................................................................................4-18
4.6 Adjust Graph Scale ............................................................................................................4-19
4.1 Overview
SoundAdvisor Model 831C
Data Display
T
he SoundAdvisor takes a measurement, and simultaneously
displays that same information in a variety of ways. At the same time
you can take a measurement and view:
• Sound metrics in real time
• 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 that the sound was measured
• Sound weighted with specific values
Overview 4-1