Evaluation of smartphone sound measurement applications

This study reports on the accuracy of smartphone sound measurement applications (apps) and whether they can be appropriately employed for occupational noise measurements. A representative sample of smartphones and tablets on various platforms were acquired, more than 130 iOS apps were evaluated but...

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Bibliographic Details
Published in:	The Journal of the Acoustical Society of America Vol. 135; no. 4; pp. EL186 - EL192
Main Authors:	Kardous, Chucri A, Shaw, Peter B
Format:	Journal Article
Language:	English
Published:	United States 01-04-2014
Subjects:	Acoustics - instrumentation Cell Phone Environmental Monitoring - instrumentation Humans Mobile Applications Occupational Exposure Occupational Health Pilot Projects Pressure Reproducibility of Results Signal Processing, Computer-Assisted Sound Workplace
Online Access:	Get full text
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Summary:	This study reports on the accuracy of smartphone sound measurement applications (apps) and whether they can be appropriately employed for occupational noise measurements. A representative sample of smartphones and tablets on various platforms were acquired, more than 130 iOS apps were evaluated but only 10 apps met our selection criteria. Only 4 out of 62 Android apps were tested. The results showed two apps with mean differences of 0.07 dB (unweighted) and -0.52 dB (A-weighted) from the reference values. Two other apps had mean differences within ±2 dB. The study suggests that certain apps may be appropriate for use in occupational noise measurements.
ISSN:	0001-4966 1520-8524
DOI:	10.1121/1.4865269