산업화와 경제발전으로 우리의 삶은 편리해졌지만 공장 소음, 작업장 소음, 자동차 소음, 생활 소음, 항공기 소음 등의 소음 공해로 인한 난청인의 증가 등 여러 가지 문제점도 나타나고 있다.5) 또한 우리들의 일상생활에서 발생하는 생활 소음도 적지 않은 문제가 되고 있다. 소음에 오랫동안 노출되면 청각손실을 초래한다. 한국산업안전공단의 산업안 전보건연구원4)에서 건강진단결과 소음성난청으로 인한 직업병유소견자의 수도 1999년에 1,056건, 2002년에 2,000건으로 4년간 2.4배 증가한 것으로 보고 된 바 있다.4) 의학의 발달로 평균수명의 연장에 따라 우리나라는 2000년에 고령화 사회에 진입했으며 2025년에는 초고령화 사회
As the number of the people who are hard of hearing has been increased because of lots of noise and being the aged society, the subjects of a hearing test have been increasing rapidly. In recent year, AMA Pure-Tone Audiometer (AMA-PTA), which enables regular computers to make a close hearing test, has been developed in the Korea to examine an easy and rapid hearing test for not only average people but also the early senile patients who are hard of hearing almost 10 percent of the whole population. The purpose of this study is to estimate a usefulness of AMA Audiometer for normal hearing and hearing loss in clinical field. The procedure of this research is to perform air and bone conduction for 30 normal people as the subject of this study each once, using GSI 61 Audiometers and AMA-PTA to estimate the trustworthiness of AMA-PTA. In conclusion, it has been estimated that AMA-PTA which has been developed in the Korea is a more effective tester that has the reduction of the test time, the solution of a limited space, the advantage of easy equipment when it is compared with the existing ones. However, it leads to the inaccurate output in high frequency. Especially, at the bone conduction it was conducted to patients uncomfortably with the incorrect sound. KEY WORDS：AMA pure-tone audiometer·GSI 61 audiometers·Validation·Air conduction·Bone conduction.
INTRODUCTION MATERIALS AND METHODS RESULTS DISCUSSIONS CONCLUSIONS REFERENCES
