A Quasi-Free-Field Transducer System for High-Frequency Audiometry

摘要: Previous attempts to measure human hearing capacity in the high frequencies (8 20 kHz) have only been met with rather limited success. Based on results of Shaw and co-workers we developed a free-field transducer system where stimuli are delivered from point source meet ear as plane progressive waves at carefully chosen angle incidence. The can be calibrated precise manner by means specially designed coupler. Preliminary indicate that procedure is easily applicable also group inexperienced test subjects test-retest variability was within such limits acceptable for subjective audiometric testing. These require validation large hope it will possible establish normative values various age groups.