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纯音测听是耳科最基本的检查之一,传统上所采用的标准型耳机为 TDH-39P型耳垫式耳机(以下简称 TDH-39P)。近年来,一种新型的、可替代传统 TDH-39P 用于临床测听的 ER-3A 型耳塞式耳机(以下简称 ER-3A)问世并商业化。ER-3A 由
Pure tone audiometry is one of the most basic tests of otology. The standard earphone traditionally used is the TDH-39P ear pad earphone (hereinafter referred to as TDH-39P). In recent years, a new type of ER-3A earbud earphone (hereinafter referred to as ER-3A) that can replace the traditional TDH-39P for clinical audiometry has come out and been commercialized. ER-3A by