청력선별형 순음 청력검사기의 개발 = Development of Air Conduction Audiometer for Basic Hearing Screening

다국어 초록 (Multilingual Abstract)

Purpose: An air conduction audiometer was developed for basic hearing screening. This study introduces the hardware platform and development technologies. Methods: The developed platform includes a pure tone generator and tone switching method, which is capable of customizing the test frequencies and adjusting pure tone output level. Results: The developed audiometer was evaluated its performance according to the international standards. The pure tone output level was compared with conventional products. The attenuator shows good linearity with a deviation of ±0.2 dB. The output tone has a frequency error under ±1% and total harmonic distortion of 0.44%. Additionally, the audiometer was evaluated in terms of on/off ratio, crosstalk and rise/fall time during tone switching. Conclusion: Through audiometer development, we expect to increase the understanding of pure tone audiometric device and calibration knowledge.

참고문헌 (Reference)

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