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Updated: Mar 29, 2026
The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe
Published on: December 3, 2016
Lower Versus Higher Cost Sound Level Meters for the Calibration of Clinical Sound Pressure Level Measurements
Youri Maryn1,2,3,4, Fergio Sismono1
1European Institute for Otorhinolaryngology-Head and Neck Surgery, ZAS Augustinus, Wilrijk, Belgium.
Purpose:
Clinical measurements of voice/speech sound pressure level (SPL) require calibration. However, relatively expensive sound level meter (SLM) may be required, which can be problematic for clinicians with limited resources.
Method:
This study therefore compared performance (correlation and error) of 11 lower cost mobile communication device (MCD)-based SLMs (SLMMCD; without or with miniature measurement microphones and dedicated software) with Class 2 SPL measurements.
Results:
Only three SLMMCDs provided accurate SPL measurements. In four other SLMMCDs, response was nonlinear.
Conclusion:
SPL measurements with low-cost and MCD-based SLMs can be accurate, but, in this study, only for miniature measurement microphones for which factory-determined correction terms were available.
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