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Conference Paper

Objective and perceptual measurements of the effect of eartip size on fit, comfort, and audio quality of earbuds

Authors: Gamst, Sebastian Palmvig; Francombe, Jon; Gribben, Christopher

2025 AES International Conference on Headphone Technology · Paper 15 · August 2025

Abstract

The fit of a wearable audio product affects the quality of experience for a user. An experimental paradigm was designed to investigate the relationships between fit, comfort, and audio quality. The experiment considered the effect of different sizes of ear tip used with a prototype audio wearable. A set of Likert items was produced, comprising 43 items related to insertion, perceived fit, comfort, removal, and liking. Additionally, sine sweeps were used to capture the in-ear transfer function and make objective fit measurements; five audio attributes were assessed for five content items; and assessors were asked to indicate areas of discomfort. The results suggested that the feeling of comfort extends beyond how well the product fits into the ear (although this is a significant factor) and confirmed that audio quality is influenced by goodness-of-fit.

Details

Published in
2025 AES International Conference on Headphone Technology
Paper number
15
Publication date
August 18, 2025
Session subject
Headphone Technology
Affiliation
Aalborg University; Bang & Olufsen; Bang & Olufsen (See document for exact affiliation information.)
Type
Conference Paper