Evaluation of smartphone sound measurement applications.
J Acoust Soc Am 2014 Apr; 135(4):EL186-EL192
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.
Measurement-equipment; Sound; Noise; Sound-attenuation; Hearing-level; Auditory-system; Noise-pollution; Noise-measurement; Noise-levels; Noise-exposure; Noise-frequencies; Analytical-instruments; Analytical-processes
Chucri A. Kardous, National Institute for Occupational Safety and Health, 4676 Columbia Parkway, Cincinnati, Ohio 45226
Journal of the Acoustical Society of America