PROBE-TUBE MICROPHONE MEASURES OF EAR-CANAL SOUND PRESSURE LEVELS IN INFANTS AND CHILDREN
PROBE-TUBE MICROPHONE MEASURES OF EAR-CANAL SOUND PRESSURE LEVELS IN INFANTS AND CHILDREN
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DOI：
10.1097/00003446-198908000-00008
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发表时间：
1989-08-01
期刊：
影响因子：
3.7
通讯作者：
GORGA, MP
中科院分区：
文献类型：
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作者：
FEIGIN, JA;KOPUN, JG;GORGA, MP
对31名5岁以下儿童进行了耳道声压级的探头管麦克风测量。这些数据与来自21名成年人的类似措施进行了比较。受试者内变异性最小的频率范围为750至3000 Hz，在没有频率的平均标准差超过3 dB。儿童的真实的耳与耦合器的差异显示出与成人相同的模式作为频率的函数，但显着更大。观察到真实的耳耦合器的差异随着年龄的增长在1000和3000 Hz之间的系统性下降。耳道容积的估计似乎不是临床上有用的预测真实的耳耦合器的差异。
Probe-tube microphone measures of ear-canal sound-pressure levels were obtained for 31 children under 5 years of age. These data were compared to similar measures from a group of 21 adults. The intrasubject variability was smallest for the frequency range from 750 to 3000 Hz and at no frequency did the mean standard deviation exceed 3 dB. Real ear to coupler differences for the children showed the same pattern as a function of frequency as for adults but were significantly larger. A systematic decrease in real ear to coupler differences was observed with increasing age between 1000 and 3000 Hz. An estimate of ear-canal volume did not appear to be clinically useful predictor of real ear to coupler differences.