Improving Accuracy and Reliability of Hearing Tests: An Exploration of International Standards

Abstract

This study explores the internal standards for hearing tests and benefits of implementing international standard protocols, including the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC), and discusses how ISO and IEC standards provide a framework for designing, calibrating, assessing hearing test instruments and methods, and exchanging and comparing data globally. ISO and IEC standards for hearing tests improve accuracy, reliability, and consistency of test results by applying standardized methods and environments. Moreover, they promote international harmonization and data interoperability, enabling information exchange and research collaboration. Those standards for hearing tests are beneficial but have challenges and limitations, such as variation in equipment and calibration, lag in updating standards, variation in implementation and compliance, and lack of coverage of clinical aspects, cultural diversity, and linguistic diversity. These affect the quality and interpretation of test results. Adapting ISO or IEC standards locally would improve their applicability and acceptability, while balancing customization and compatibility with global standards.

Comparative Effectiveness of Personal Sound Amplification Products Versus Hearing Aids for Unilateral Hearing Loss: A Prospective Randomized Crossover Trial

“…Pure-tone thresholds and word recognition scores (WRSs) were measured under unaided and aided conditions. 28 Audiometry was conducted in the sound field, with masking applied to the contralateral better ear. A Madsen Orbiter 922 audiometer (Madsen Electronics, Taastrup, Denmark) and TDH-39P headphones (Telephonics, Farmingdale, NY, USA) were used as measuring devices.…”