1. Copyright © American Speech-Language-Hearing Association
From: The "Hearing Aid Effect" 2005:  A Rigorous Test of the Visibility of New Hearing Aid Styles
Am J Audiol. 2005;14(2): doi: / (2005/019)
Legend:
Stimuli used for rating from upper-left to bottom-right: (a) invisible deep-fitting completely-in-the-canal (df-CIC), (b) mini in-the-canal (m-ITC), (c) half-shell in-the-ear (hs-ITE), (d) full-shell in-the-ear (fs-ITE), (e) open ear (OE), and (f) behind-the-ear (BTE) with a skeleton earmold, at the 458 angle.
Date of download: 10/24/2017
Copyright © American Speech-Language-Hearing Association