Probe-Tube Microphone Measures of Real Ear Coupler Difference in Chinese Adults and Children

以「探針管麥克風系統」測量中國成人及兒童之「真耳耦合器差值」

劉殿楨(Tien-Chen Liu) ； 許權振(Chuan-Jen Hsu)

《慈濟醫學雜誌》 10卷4期 (1998/12) Pp. 273-277

https://doi.org/10.6440/TZUCMJ.199812.0273

摘要

本研究使用「探針管麥克風系統」來測量二十位中國成人及二十位兒童之「真耳耦合器差值」。結果顯示，在同一受測者兩次測量間之標準差甚小，任何一頻率均不超過二分貝。表示此項檢查的再顯性及可信度均高。在「真耳耦合器差值」方面，本研究之結果與文獻中報告相似，除了在6 kHz處較低。另外，小孩的「真耳耦合器差值」較高。這在結果對於中國成人及兒童助聽器之選配，將有很大幫助。

關鍵字

探針管麥克風系統 ； 真耳耦合器差值 ； 外耳道

並列摘要

Probe-tube microphone measures of ear canal sound pressure levels were obtained for 20 Chinese adults and 20 children under 5 years of age. The smallest intrasubject variability between the two measurements for each subject was in the frequency range of 0.75 to 4 kHz. Larger variation was found at the low and high frequency ends. However, at o frequency did the mean standard deviation exceed 2 dB. Real ear to coupler difference (RECD) for both adults and children showed a similar pattern as previously reported in the literature, except at 6 kHz where our data were significantly smaller. Children typically had larger RECDs than those for adults across all frequencies. These data are very useful in fitting hearing aids for Chinese adults and children.

並列關鍵字

Probe-tube microphone measurements ； real ear coupler difference ； external ear canal