Smartphone-Based Sound Level Measurement Apps: Evaluation of Directional Response

Details

• Personal Author:
  Celestina M ; Kardous CA ; Trost A
• Description:
  Smartphones have evolved into powerful devices with computing capabilities that rival the power of personal computers. Any smartphone can now be turned into a sound-measuring device because of its built-in microphone. Many sound measuring apps exist on the market for various mobile platforms. In our earlier research, we showed that a smart device with an adequate app can achieve compliance with most of the Class 2 requirements for periodic testing. In this paper, we present the methods and results of measuring directional response of a sound level meter consisting of a smartphone and one commercially available sound level meter app in the horizontal plane. We used both the built-in smartphone microphone and an external microphone according to relevant IEC [International Electrotechnical Commission] and ANSI [American National Standards Institute] sound level meter standards. The results show that the sound level meter app and an external microphone can achieve compliance with the requirements for Class 2 of IEC 61672/ANSI S1.4-2014 standard in the horizontal plane. [Description provided by NIOSH]
• Subjects:
  Noise Noise, Occupational Occupational Health Safety Software
• Keywords:
  Acoustical Measurements Acoustic Measurement Author Keywords: App Compliance Computer Applications Computer Programs Computer Software Measurement Equipment Mobile Equipment Noise Exposure Noise Levels Noise Measurement Sound Sound Level Meter

  More +
• ISSN:
  0003-682X
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DFSE - Division of Field Studies and Engineering
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  171
• NIOSHTIC Number:
  nn:20061179
• Citation:
  Appl Acoust 2021 Jan; 171:107673
• Contact Point Address:
  Metod Celestina, University of Ljubljana, Faculty of Electrical Engineering, Trzaska cesta 25, Ljubljana, Slovenia
• Email:
  metod.celestina@ea-lab.eu
• Federal Fiscal Year:
  2021
• Peer Reviewed:
  True
• Source Full Name:
  Applied Acoustics
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:2d5141eee499ef3f611c65b1c94270aba54ec06c5ac050148fb0871cc0d1d5e4c8cc4e9e509dc896f9b1af68b6f19684c0bebf719180d4fe9ae324b21cbdce35
• Download URL:
  https://stacks.cdc.gov/view/cdc/224802/cdc_224802_DS1.pdf
• File Type:
  [PDF - 2.33 MB ]