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The GeoAxon Kuduwave – A Validated Type 1 Clinical Audiometer for Comprehensive Diagnostic Assessment

AbstractThis white paper aims to establish the GeoAxon Kuduwave (Prime, Pro, and Pro TMP models) as a Type 1 Clinical Audiometer, compliant with stringent international standards including IEC 60645-1 for pure-tone audiometry and IEC 60645-5 for immittance audiometry (Pro TMP model). It details the Kuduwave’s… Read More »The GeoAxon Kuduwave – A Validated Type 1 Clinical Audiometer for Comprehensive Diagnostic Assessment

Intercontinental Hearing Assessment – A Study in Tele-Audiology

Abstract We evaluated the validity of remote pure tone audiometric testing conducted from North America on subjects in South Africa. Desktop-sharing computer software was used to control an audiometer in Pretoria from Dallas, and PC-based videoconferencing was employed for clinician and subject communication. Thirty adult… Read More »Intercontinental Hearing Assessment – A Study in Tele-Audiology

One-eartip solution for pure-tone audiometry and acoustic immittance measurements: using insert earphone with an immittance probe ear tip

Abstract Objective Two consecutive studies sought to determine the (1) Equivalent Threshold Sound Pressure Levels (ETSPLs) and, (2) real ear attenuation thresholds (REAT) for the KUDUwave earcup configured with an insert earphone using a typical immittance probe tip (TPT). Design (1) Hearing thresholds were measured… Read More »One-eartip solution for pure-tone audiometry and acoustic immittance measurements: using insert earphone with an immittance probe ear tip

The Psychoacoustic Check: A Preferred Method for Audiometric Room Quietness Certification in South African Occupational Health

AbstractThis white paper advocates for the adoption of an Psychoacoustic Check as the preferred, scientifically robust, and practical method for verifying audiometric room quietness in South African occupational health settings. Traditional physical sound level measurements (e.g., SANS 10182) for room certification, particularly for mobile units,… Read More »The Psychoacoustic Check: A Preferred Method for Audiometric Room Quietness Certification in South African Occupational Health

A Scientific Critique of SANS 10083:2023 Section 15.1.2.3 Note 1: Rectifying an Impediment to Advanced Hearing Conservation Practices

Abstract   This white paper critiques Note 1 of Section 15.1.2.3 in the South African National Standard SANS 10083:2023, a standard for occupational noise and hearing conservation. This recently added note implies that if the sound-blocking capability (attenuation) of an audiometric device cannot be easily… Read More »A Scientific Critique of SANS 10083:2023 Section 15.1.2.3 Note 1: Rectifying an Impediment to Advanced Hearing Conservation Practices

Sound Attenuation in Audiometric Testing: A Review of Single-Walled Booths and Boothless Technologies for Occupational Hearing Screening

Abstract   This white paper investigates the sound attenuation performance of typical single-walled, small audiometric test booths and an emerging boothless audiometry system (Kuduwave), specifically focusing on the 125-8000 Hz frequency range critical for comprehensive occupational hearing screening. Accurate hearing assessment in workplace environments is… Read More »Sound Attenuation in Audiometric Testing: A Review of Single-Walled Booths and Boothless Technologies for Occupational Hearing Screening

A Comparative Analysis of Attenuation and Maximum Permissible Ambient Noise Levels for Audiometric Headsets

Abstract The accuracy of audiometric testing is fundamentally reliant on controlling ambient noise to prevent the masking of test stimuli. Various audiometric transducers, including supra-aural, circumaural, and insert earphones, as well as integrated headset systems, offer differing levels of passive sound attenuation. This white paper… Read More »A Comparative Analysis of Attenuation and Maximum Permissible Ambient Noise Levels for Audiometric Headsets

Determining OSHA-Compliant Maximum Permissible Ambient Noise Levels (MPANLs) for the Kuduwave Audiometer (Utilizing Foam Eartips)

Abstract:   This white paper investigates the determination of OSHA-compliant Maximum Permissible Ambient Noise Levels (MPANLs) for the Kuduwave audiometer when used with foam eartips. It reviews OSHA’s baseline MPANLs (29 CFR 1910.95 Appendix D, Table D-1) and the more current ANSI S3.1-1999 (R2018) standard,… Read More »Determining OSHA-Compliant Maximum Permissible Ambient Noise Levels (MPANLs) for the Kuduwave Audiometer (Utilizing Foam Eartips)