NIOSH Sound Level Meter

NIOSH Sound Level Meter

Download on App Store
Spark by MWM logo
Logo of NIOSH Sound Level Meter

NIOSH Sound Level Meter: Professional-Grade Accuracy in Your Pocket

Trusted by safety experts and developed by NIOSH engineers, this free, lab-validated tool provides the precise metrics and data sharing you need to protect your hearing and ensure workplace safety.

Publisher

EA LAB d.o.o.

Category

Utilities

Downloads

1M+

User Rating

4.7/5

Total Ratings

26K+

Locales

2

Precision at a Glance

Discover the interface used by 1M+ users.

The NIOSH Sound Level Meter app displaying a real time noise level of 73.3 decibels.

The NIOSH Sound Level Meter app displaying a real time noise level of 73.3 decibels.

List of saved noise level measurements showing date time and decibel values in the app

List of saved noise level measurements showing date time and decibel values in the app

Settings screen of the NIOSH Sound Level Meter app showing calibration and noise measurement standards

Settings screen of the NIOSH Sound Level Meter app showing calibration and noise measurement standards

Educational screen from the NIOSH app showing common noise levels and hearing safety information.

Educational screen from the NIOSH app showing common noise levels and hearing safety information.

Measurement instruction screen for the NIOSH Sound Level Meter app showing control buttons.

Measurement instruction screen for the NIOSH Sound Level Meter app showing control buttons.

Professional Noise Measurement, Simplified

The tools that make this app stand out, trusted by 1M+ users.

🔬

Lab-Validated Accuracy

Validated in NIOSH acoustics chambers to within ± 2 dBA, providing the reliability of a professional meter on your smartphone.

📊

Comprehensive Safety Data

Access advanced metrics like LAeq, TWA, and Noise Dose to ensure compliance with OSHA and NIOSH workplace standards.

🛡️

Actionable Hearing Protection

Learn which noises are hazardous and get expert guidance on selecting the right hearing protection for any environment.

Loved by users worldwide

Trusted by 1M+ people who love this app.

"

"As a safety manager in a busy manufacturing facility, I need data I can actually trust for compliance checks. The NIOSH Sound Level Meter is the only app that provides professional-grade metrics like TWA and Noise Dose without the clutter of ads. It has become an essential tool in my safety kit for quick, reliable spot-checks on the factory floor."

Marcus Thorne, Occupational Health & Safety Specialist
"

"I'm a touring musician and sound engineer, and protecting my hearing is my top priority. Most decibel apps feel like toys, but the accuracy and calibration options here are incredible. I love that it integrates with Apple Health to track my daily exposure. It is a must-have for anyone working in loud environments who cares about their long-term health."

Elena Rodriguez, Live Sound Engineer

About the app

Everything you need to know about NIOSH Sound Level Meter.

Description

This award-winning app combines the best features of professional sound level meters and noise dosimeters into a simple, easy-to-use package. - Developed by experienced acoustics engineers and hearing loss experts. - Completely FREE – No ads, no limited features, and no in-app purchases. - Tested and validated (accuracy ± 2 dBA) according to standards in a reverberant chamber at NIOSH acoustics lab – the only proper method to validate accuracy. - Trusted source and world-class expertise in noise and hearing research. - Meets Type 2 requirements of IEC 61672:3 SLM standard when used w/ external microphone.* - Provides the most relevant metrics found in professional sound instruments today. Averages such as LAeq and TWA, Max and Peak Levels, Noise Dose and Projected Dose according to NIOSH and OSHA standards, and all three major weighting networks (A, C, and Z). - Capability to calibrate either internal or external microphone. Reporting and Sharing data. - Up-to-date informational screens on what noises are considered hazardous, how to conduct a noise measurement, how to properly select a hearing protector, and guidelines for preventing hearing loss, all at the palm of your hand. - Excellent and timely support from NIOSH hearing experts. - Support for Apple's Health (Hearing) app. * Celestina M, Hrovat J, Kardous CA [2018]. Smartphone-based sound level measurement apps: Evaluation of compliance with international sound level meter standards. Applied Acoustics, 139:119-128. https://doi.org/10.1016/j.apacoust.2018.04.011 More resources (including instructional videos and a user manual), a science blog, FAQ, and information about how to interpret results can be found on the NIOSH SLM website https://www.cdc.gov/niosh/topics/noise/app.html

Latest Version

1.2.6

Size

17.2 MB

First Released

Jan 13, 2017

Get the Gold Standard in Sound Measurement for Free

Join over 1 million professionals using the lab-validated, ad-free tool from the experts at NIOSH. Download now to access professional-grade acoustics data and protect your hearing with confidence.

Download on App Store
FAQ

Frequently Asked Questions

Everything you need to know about NIOSH Sound Level Meter

What is the NIOSH Sound Level Meter app?

The NIOSH Sound Level Meter app combines professional sound level meter and noise dosimeter features into an easy-to-use package. It was developed by experienced acoustics engineers and hearing loss experts.

Is the NIOSH Sound Level Meter app free to use?

Yes, the NIOSH Sound Level Meter app is completely free. It includes no ads, no limited features, and no in-app purchases, providing full functionality without cost.

How accurate is the NIOSH Sound Level Meter app?

The NIOSH Sound Level Meter app has a validated accuracy of ± 2 dBA. This validation was performed according to standards in a reverberant chamber at the NIOSH acoustics lab.

What professional standards does the NIOSH Sound Level Meter app meet?

The NIOSH Sound Level Meter app meets Type 2 requirements of the IEC 61672:3 SLM standard when used with an external microphone. It also provides metrics according to NIOSH and OSHA standards.

Can the NIOSH Sound Level Meter app calibrate microphones?

Yes, the NIOSH Sound Level Meter app has the capability to calibrate both internal and external microphones. This feature ensures accurate sound measurements.

Does the NIOSH Sound Level Meter app integrate with Apple Health?

Yes, the NIOSH Sound Level Meter app supports Apple's Health (Hearing) app. Users can integrate their sound level data with their Apple Health profile.

How can users save and share data from the NIOSH Sound Level Meter app?

The NIOSH Sound Level Meter app allows for reporting and sharing measurement data. Users can also save measurements, which are accessible from the "Saved" tab.

What information does the NIOSH Sound Level Meter app provide about hazardous noise?

The NIOSH Sound Level Meter app offers informational screens detailing what noises are hazardous, how to conduct measurements, select hearing protectors, and guidelines for preventing hearing loss.

What metrics does the NIOSH Sound Level Meter app measure?

The NIOSH Sound Level Meter app provides metrics like LAeq, TWA, Max and Peak Levels, Noise Dose, and Projected Dose. It also includes A, C, and Z weighting networks.