Untitled Document

Sound Advice Quarterly

Issue 110

A New FFT Sound and Vibration Analyzer

FFT Analysis is useful for uncovering sound and vibration issues in machinery and systems. Did you know that SoundAdvisor™ Sound Level Meter Model 831C can now be used as an FFT sound and vibration analyzer?

Simply connect a microphone or any single-axis ICP^® accelerometer and view results on your mobile device via the LD Atlas™ app or on PC with G4 LD Utility Software. SoundAdvisor coupled with Model 831C-FFT Firmware offers:

Hand-held, single channel FFT measurements
In-field tone detection and assessment
Noise source identification
Harmonic Analysis: Total Harmonic Distortion (THD and THD+n)

Learn more about FFT firmware – including how to upgrade your current meter without returning it to the factory!

SoundAdvisor 831C with FFT Overall View Screen

Exploring Sound in the Classroom
Who knew a Kindergarten class could be developing the next generation of acousticians? Prior to the COVID pandemic, our team visited a local class engaged in studying sound and developing their own sound booths to make better audio recordings in the classroom.
While we taught the students about the science of sound and sound level meters, we learned about the common problem of background noise in older school buildings. To mitigate these issues in new facilities, construction of classrooms should be guided by the ANSI S12.60-2002 standard. The standard states that background noise levels should be no higher than 35 dBA.	A thank you to Mrs. Jones and her curious students!
Reverberation Time must also be considered: under the standard, maximum allowable Reverberation Time for a classroom under 10,000 cubic feet is 0.6 s. For any classroom between 10,000 and 20,000 cubic feet, Reverberation Time should be less than 0.7 s. Learn more about the ANSI Standards for Classrooms

From Battery Power to 24/7 Remote Access Outdoor Noise Monitoring Options
Outdoor noise monitoring projects can range from quick, handheld measurements to long-term installations requiring remote access, custom notifications, and more. Monitoring solutions from Larson Davis offer the flexibility of basic, battery powered systems designed for up to two weeks in the field as well as solar powered systems delivering 24/7 access to data over a prolonged period.
Need to make measurements, but don’t need the equipment long-term? Consider renting Larson Davis Outdoor Noise Monitoring Systems from our sister company, The Modal Shop.

SoundLink Software Service: Access Data Anywhere
Securely access sound measurement data from anywhere, without a static IP SIM, using our new SoundLink Software Service. Larson Davis serves a global market and now has improved our communication, cloud data storage, and performance in locations where a dynamic SIM is required.

Always Listening,

Gregory McCart

Director of Sales & Marketing
Larson Davis
gmccart@pcb.com

On-Demand Webinars

Environmental Noise Webinars

Outdoor Noise Monitoring: Plan, Measure, Troubleshoot

MTS Sensors, a division of MTS Systems Corporation (NASDAQ: MTSC), vastly expanded its range of products and solutions after MTS acquired PCB Piezotronics, Inc. in July 2016. PCB Piezotronics, Inc. is a wholly owned subsidiary of MTS Systems Corp.; IMI Sensors and Larson Davis are divisions of PCB Piezotronics, Inc.; Accumetrics, Inc. and The Modal Shop, Inc. are subsidiaries of PCB Piezotronics, Inc.

Privacy Policy

Larson Davis - 3425 Walden Avenue, Depew NY 14043 USA
Phone: +1 716-926-8243
Contact Us