Decibel Meter Sonolab: dB SPL

Decibel meter and noise dosimeter with calibration, frequency analysis and shift-based exposure tracking.

iOSone_time

Sonolab turns an iPhone into a decibel meter and noise dosimeter with nine measurement views, calibration against a reference tone, and OSHA/NIOSH/NOM-011 exposure tracking across a work shift. It also includes real-time frequency analysis and exportable PDF/CSV reports. It's for people who need to measure sound in workplaces, studios, classrooms or other environments and document it over time.

iOS

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