In the hands of the skilled clinician, this compact system solves myriad problems that still exist even with today's digital technology. Illustrations for holding and striking the forks are shown in Figure 2.įigure 2. It requires no electricity, set up, or maintenance. The forgotten manuscript speaks of a convenient, lightweight, and portable soundfield system that can be taken anywhere one serves the hearing impaired. This rare artifact is accompanied with a tattered tutorial which speaks of skills and capabilities lost in the mad rush to modern technology: Weber, Rinne, Bing, and Schwabach, along with updated and unique approaches for troubleshooting and counseling hearing aid users, such as balancing binaural hearing aids, ear training for spatial skills, and contemporary skills for Transcranial CROS fittings (Chartrand, 2003). Thereafter, German physicist Chladni in 1800 developed a set of forks for testing human hearing (Feldmann, 1997).įigure 1. by Italian physician Capivacci to determine the location of hearing disorders, it was not until Englishman John Shore developed a single tuning fork for tuning musical instruments at A423.5 cps that the modern tuning fork took shape. Unearthed, our adventurer finds deep in the dusty bins of history a soft leather case containing six heavy-duty alloy tuning forks that resonate at the octaves of 128 Hz, 256 Hz, 512 Hz, 1024 Hz, 2048 Hz, and 4096 Hz (Figure 1). As in an Indiana Jones adventure, we search for the lost art of tuning fork testing like that used before the advent of modern electronic audiometers, impedance audiometry, real-ear measurement systems, and electroacoustic analyzers.
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