SoundAdvisor™ Sound Level Meter

Noise Measurement and Analysis | Model 831C

The SoundAdvisor Sound Level Meter Model 831C is designed to make noise measurement easy. Due to its color display, connectivity, extensive software features and small form factor the SoundAdvisor is an ideal choice for handheld operation. Attended measurements are simplified, with the ability to control and monitor data via any PC or mobile device with a standard web interface. Designed with the acoustic professional in mind, the SoundAdvisor offers an elegant solution for complex needs in an easy to use system.

Applications

Environmental noise assessment
Noise reduction validation
Product quality control
Spectral noise analysis
FFT analysis and tone assessment
In-situ sound power measurements
Code enforcement
Room acoustics and NC/RC ratings

Measurements Simplified

Connectivity Is Key

Cellular, WiFi, and wired networking are all available to you when using the SoundAdvisor. The meter can even serve as its own WiFi hotspot.

Many Platforms, Same Controls

Whether you are setting up a test on the meter, checking in remotely from your laptop, or receiving an alert to your smartphone, you'll be working with the same interface and menus across all platforms

Customizable for Your Application

From complete outdoor monitoring kits to a low noise option to automatic event detection, the SoundAdvisor is designed to help meet your testing needs

LCD Color Interface

A full color user interface allows you to interpret data more easily, right from the meter

Firmware Options

Feature Model Description
Room Acoustics Measurements 831C-RA Reverberation time measurements are key to understanding the acoustic characteristics of a room and are also used to calculate absorption coefficients in materials testing. SoundAdvisor™ with 831C-RA firmware measures sound level decays, computes reverberation time (RT60), and computes NC/RC ratings.
Sound Recording 831C-SR Combine sound data with recordings of the sound being measured for noise source identification. Trigger recordings manually or automatically when combined with 831C-ELA Firmware.
Octave Band Analysis 831C-OB3 In many applications, it is important to acquire both the broadband level and spectral content of noise data. With spectral information, the source and content of the measured level can be better understood. Constant percentage bandwidth filters (1/1 or 1/3 octave) best approximate human perception of sound.
FFT Analysis and Tone Assessment 831C-FFT The narrow-band filtering provided by Fast Fourier Transform (FFT) Analysis of single-channel acoustic or vibration sources is useful for machinery analysis, product development, tone detection, fault analysis, and vibration troubleshooting.
Acoustic Parameter Logging 831C-LOG SoundAdvisor Model 831C can be used to record the evolution of sound pressure level over time as a Time History (TH). The Time History is then used to profile the observation period, which can vary from several seconds to continuous monitoring.
Measurement History 831C-ELA While Time Histories are typically logged at one sample per second, longer- term averages are often useful to see trends, e.g., 10 minute or hourly averages. 831C-ELA firmware enables Measurement History (MH) and logs these parameters similar to Time History (TH). MH and TH can run together simultaneously or independently.
Automatic Event Detection and Alerts 831C-ELA Record additional data or receive alerts of events. Events are triggered when selected parameters exceed a fixed or dynamic threshold for a minimum duration or by an external trigger set by the digital input signal.
Noise Monitoring Scheduling Tools 831C-SCH Data and alerts are often needed only on certain days or specific times. With 831C-SCH firmware, schedule run/stop times, modem usage, and alert type and recipient. Easily configure SoundAdvisor to measure and report only what you need, even when those needs change.
Cellular Communication 831C-SW We understand how beneficial it can be to have access to your noise monitor at any time of the day. Due to the remoteness or need to setup contracts and get permits, connecting a noise monitor to a wired network or main power just isn't feasible. With option 831C-SW you can connect the SoundAdvisor by USB directly to a Sierra Wireless gateway and get a highly portable noise monitor that can easily be powered by battery and/or solar. We recommend the Sierra Wireless model RV-50 because of its low power usage and industrial design.

Standards

IEC 61672-1:2013 ANSI S1.4-2014 Class 1 integrating sound level meter

Measurements

Real-time frequency analysis in 1/1 and 1/3 octave bands, compliant with IEC 61260:2014 and ANSI S1.11-2014 Class 1
>120 dB dynamic range
2 GB internal memory, expandable by USB
Full range AC output
Available Low noise option (831C-LOWN)
Includes valid ISO 17025 compliant calibration certificate
Larson Davis Model 831C PTB Approval

Type Approvals / Pattern Approvals

SoundAdvisor Quickstart Video