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Audiology and Speech Research > Volume 12(3); 2016 > Article
Audiology and Speech Research 2016;12(3): 144-149.
Published online: July 31, 2016.
doi: http://doi.org/10.21848/asr.2016.12.3.144
청력선별형 순음 청력검사기의 개발
이강호1, 이동규1, 권오원1, 최철희2,3,4
1한국기계연구원 대구융합기술연구센터
2대구가톨릭대학교 언어청각치료학과
Development of Air Conduction Audiometer for Basic Hearing Screening
Kang-Ho Lee1, Dongkyu Lee1, Ohwon Kwon1, Chul-Hee Choi2,3,4
1Daegu Research Center for Medical Devices, Korea Institute of Machinery and Materials, Daegu, Korea
2Department of Audiology and Speech-Language Pathology
3Research Institute of Biomimetic Sensory Control
4Catholic Hearing Voice Speech Center, Catholic University of Daegu, Gyeongsan, Korea
Correspondence  Chul-Hee Choi ,Tel: +82-53-850-2541, Fax: +82-53-359-0780, Email: cchoi@cu.ac.kr
Received: June 7, 2016; Revised: June 28, 2016   Accepted: June 29, 2016.  Published online: July 31, 2016.
An air conduction audiometer was developed for basic hearing screening. This study introduces the hardware platform and development technologies.
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.
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.
Through audiometer development, we expect to increase the understanding of pure tone audiometric device and calibration knowledge.
Key Words: Pure tone, Air conduction, Audiometer, Frequency, Output level
중심단어: 순음· 기도전도· 청력검사· 주파수· 출력강도
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