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Reference equivalent threshold sound pressure levels for the Wireless Automated Hearing Test System. | LitMetric

AI Article Synopsis

  • This paper discusses the reference equivalent threshold sound pressure levels (RETSPLs) for a new device called the Wireless Automated Hearing Test System (WAHTS), designed to function without a traditional audiometry booth.
  • Initial studies showed that the test subjects had slightly higher hearing thresholds than expected, which affected the accuracy of WAHTS compared to standard audiometric equipment.
  • The paper suggests corrections to the RETSPLs to account for these elevated thresholds and presents two additional studies validating the corrected levels.

Article Abstract

This paper presents reference equivalent threshold sound pressure levels (RETSPLs) for the Wireless Automated Hearing Test System (WAHTS), a recently commercialized device developed for use as a boothless audiometer. Two initial studies were conducted following the ISO 389-9 standard [ISO 389-9 (2009). "Acoustics-Reference zero for the calibration of audiometric equipment. Part 9: Preferred test conditions for the determinations of reference hearing threshold levels" (International Organization for Standardization, Geneva)]. Although the standard recruitment criteria are intended to yield otologically normal test subjects, the recruited populations appeared to have slightly elevated thresholds [5-10 dB hearing level (HL)]. Comparison of WAHTS thresholds to other clinical audiometric equipment revealed bias errors that were consistent with the elevated thresholds of the RETSPL populations. As the objective of RETSPLs is to ensure consistent thresholds regardless of the equipment, this paper presents the RETSPLs initially obtained following ISO 389-9:2009 and suggested correction to account for the elevated HLs of the originally recruited populations. Two additional independent studies demonstrate the validity of these corrected thresholds.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9308501PMC
http://dx.doi.org/10.1121/10.0012733DOI Listing

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