Himelfarb M Z, Rapoport Y, Shanon E
Isr J Med Sci. 1976 Nov;12(11):1289-93.
In order to assess the validity of using various ear tips, tympanometry and acoustic admittance were studied in 20 young healthy subjects, and three different types of ear tip used to seal the external auditory canal. Significant variations in the admittance components and tympanometry curves were observed, resulting most probably from changes in the canal volume and the physical nature of the tipe. It appears advisable to develop and adopt an appropriate, standard ear tip for studies of admittance audiometry.
为了评估使用各种耳塞的有效性，对20名年轻健康受试者进行了鼓室声导抗测量和声导纳研究，并使用三种不同类型的耳塞来封闭外耳道。观察到导纳成分和鼓室声导抗测量曲线有显著差异，这很可能是由于耳道容积和耳塞物理性质的变化所致。对于导纳测听研究，开发并采用合适的标准耳塞似乎是可取的。
