中国听力语言康复科学杂志Issue(1)：40-43,4.DOI:10.3969/j.issn.1672-4933.2014.01.012
突变截面管式通气孔对耳模声学特性的影响
The Effects of Abrupt Changing Vents on the Acoustic Characteristics of Earmolds
杨毅 1王枫 1赵慧云1
作者信息
- 1. 浙江中医药大学听力与言语科学学院 杭州 310053
- 折叠
摘要
Abstract
Objective To explore the acoustic advantages of abrupt changing vents in the earmolds. Methods Pipelaying was applied to make parallel,expanding and shrinking vents for each subject. The real-ear occluded gain (REOG) and real-ear insertion gain (REIG) were measured from the subjects wearing different earmolds. Results (1) There were significant differences in REOG between earmolds with expanding vents and with parallel vents at 500 Hz and 750 Hz(P<0.05). There was no significant difference in REOG between earmolds with shrinking vents and those with parallel vents at all frequencies(P>0.05).(2) There were significant differences in REIG between earmolds with expanding vents and those with parallel vents at 2000 Hz(P<0.05)as well as between earmolds with shrinking vents and those with parallel vents at 2000 and 3000 Hz(P<0.05). Conclusion The abrupt changing vent is similar with the 2 mm parallel vent in dealing with occlusion,but the earmolds with expanding and shrinking vents can achieve more gains and the effects of shrinking vents are better than expanding vents.关键词
耳模/突变截面管/堵耳效应/声反馈/真耳分析Key words
Earmold/Abrupt changing vent/Occlusion/Acoustic feedback/Real ear measurement引用本文复制引用
杨毅,王枫,赵慧云..突变截面管式通气孔对耳模声学特性的影响[J].中国听力语言康复科学杂志,2014,(1):40-43,4.
