So How Accurate Are These Smartphone Sound Measurement Apps?

So How Accurate Are These Smartphone Sound Measurement Apps?

So How Accurate Are These Smartphone Sound Measurement Apps?

Centers for Disease Control and Prevention (CDC) sent this bulletin at 04/09/2014 12:24 PM EDT

Many smartphone developers have built measurement apps that can potentially turn the device into a dosimeter or sound-level meter. But how well do these work? Chuck Kardous and Peter Shaw examined 192 different apps for iOS and Android platforms, and tested those that met their criteria in a reverberant noise chamber at the NIOSH acoustics testing laboratory. Find out about their research on the NIOSH Science Blog.Chucri A. Kardous, MS, PE, and Peter B. Shaw, Ph.D.