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Perceptual evaluation of changes in sound quality after surgically changing the shape of the osseous external auditory canal.

Primary Objective: The present study is designed to answer the question whether the surgically altered OEAC leads to a perceived change in sound quality.Secondary Objective(s): To determine the differences in RECD and REUR induced by different OEAC…

Perceptual evaluation of changes in sound quality after mastoidectomy: open cavity mastoid versus obliterated mastoid cavity.

The primary objective of this study is to answer the question whether the obliteration of an open cavity mastoid restores the subjective sound quality as perceived in the particular ear. The secondary objective is to determine the differences in…