High-frequency audiometry above 8 kHz. Comparative results of normative thresholds obtained with a headphone system and a quasi-free-field system.
Since a standard method for high-frequency audiometry does not yet exist, the authors, using 20 young subjects, compare the results obtained with a quasi-free-field system devised by Osterhammel et al. [Scand. Audiol. 6:91-95, 1977] and those obtained by a headphone system. The headphone system is considered to be better, because it offers many practical advantages.
D000328:Adult; D000669:Amplifiers, Electronic; D001299:Audiometry / Q000379:methods*; D001309:Auditory Threshold; D005260:Female; D006801:Humans; D008297:Male; D014159:Transducers