CAJ | 학술논문

目的：开发一种便携式自我听力监测系统，并进行了初步临床评估。方法采用ThinkPad笔记本电脑、Cre-ative声卡、ER3A插入式耳机以及自制音频转换器建立起便携式听力自我监测系统。开发配套系统软件并校准信号输出强度。系统建立后，首先通过小样本正常人预实验发现系统设计中存在的重大问题并进行调整。系统经过改进和调整后，在18例（36耳）听力正常人中进行纯音测听听阈与自测听阈的对比。每位受试者分别进行测听室内的纯音测听和软件自测。计算各频率阈值差值。结果获得了便携式自我听力监测系统的原型机。经过调整的系统自测结果与纯音测听结果总体吻合度较好，特别是250～4kHz偏差较小（各频率总体偏差值分别为-1.81±8.29、-1.81±7.09、0.56±6.95、3.33±5.35、1.94±6.68、3.47±5.71 dB）。但125、6k、8kHz偏差较大（125 Hz偏差值为-6.11±8.29 dB；6 k、8 kHz偏差值分别为-5.28±6.54、-3.33±6.87 dB）。环境噪声对测试结果有一定影响。结论便携式听力自我监测系统提供了一种便捷的自动测听方法，需进一步验证可靠性。
목적：개발일충편휴식자아은력감측계통，병진행료초보림상평고。방법채용ThinkPad필기본전뇌、Cre-ative성잡、ER3A삽입식이궤이급자제음빈전환기건립기편휴식은력자아감측계통。개발배투계통연건병교준신호수출강도。계통건립후，수선통과소양본정상인예실험발현계통설계중존재적중대문제병진행조정。계통경과개진화조정후，재18례（36이）은력정상인중진행순음측은은역여자측은역적대비。매위수시자분별진행측은실내적순음측은화연건자측。계산각빈솔역치차치。결과획득료편휴식자아은력감측계통적원형궤。경과조정적계통자측결과여순음측은결과총체문합도교호，특별시250～4kHz편차교소（각빈솔총체편차치분별위-1.81±8.29、-1.81±7.09、0.56±6.95、3.33±5.35、1.94±6.68、3.47±5.71 dB）。단125、6k、8kHz편차교대（125 Hz편차치위-6.11±8.29 dB；6 k、8 kHz편차치분별위-5.28±6.54、-3.33±6.87 dB）。배경조성대측시결과유일정영향。결론편휴식은력자아감측계통제공료일충편첩적자동측은방법，수진일보험증가고성。
Objective To design a portable self-hearing-monitoring system and to evaluate its reliability. Methods A portable self-hearing-monitoring system was composed using a ThinkPad laptop computer, Creative soundcard, ER3A insert phones and custom audio convertor. Custom software was developed and the test signals were calibrated. The original prototype was tested in small-sampled pre-assessment for major hardware or software flaws and led to revision of both software and hard-ware. A test-reliability assessment was then done in 18 normal hearing people (36 ears). Hearing thresholds in each subject were tested by regular pure tone audiometry in sound proof booth and by self hearing test as well. The thresholds at all frequen-cies from both methods were compared for differences. Results A prototype portable self-hearing-monitoring system was esteb-lished. Thresholds obtained by the self-hearing-monitoring system and pure tone audiometry fit well with each other between 250 Hz and 4 kHz (the difference was-1.81±8.29,-1.81±7.09, 0.56±6.95, 3.33±5.35, 1.94±6.68 and 3.47±5.71 dB, respec-tively), although discrepancy was noticed at 125 Hz (-6.11 ± 8.29 dB), 6 k Hz (-5.28 ± 6.54 dB) and 8 k Hz (-3.33 ± 6.87 dB). Ambient noise seemed to affect the test results of the system. Conclusions The portable self-hearing-monitoring system pro-vides a new convenient method for automatic audiometry. Test reliability of this system should be further evaluated.