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Lower Versus Higher Cost Sound Level Meters for the Calibration of Clinical Sound Pressure Level Measurements.

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Title: Lower Versus Higher Cost Sound Level Meters for the Calibration of Clinical Sound Pressure Level Measurements.
Authors: Maryn, Youri1,2,3,4 youri.maryn@zas.be, Sismono, Fergio1
Source: American Journal of Speech-Language Pathology. May2026, Vol. 35 Issue 3, p1268-1273. 6p.
Subject Terms: *Audiometry, *Speech evaluation, *Communication, *Comparative studies, Pearson correlation (Statistics), Cost analysis, Descriptive statistics, Physiological aspects of speech, Calibration, Data analysis software, Phonetics, Transducers
Geographic Terms: Belgium
Abstract: 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. [ABSTRACT FROM AUTHOR]
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Database: Education Research Complete
Description
Abstract: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. [ABSTRACT FROM AUTHOR]
ISSN:10580360
DOI:10.1044/2026_AJSLP-25-00517