Publication: Estimation of Hearing Aid Head Related Transfer Functions using Anthropometric Features
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2024-11-26
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Nunayon, Simon. 2024. Estimation of Hearing Aid Head Related Transfer Functions using Anthropometric Features. Bachelor's thesis, Harvard University Engineering and Applied Sciences.
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Abstract
Virtual reality is emerging as an ecologically valid environment for auditory rehabilitation and diagnostics. Creating an auditory environment that accurately simulates a user’s experience requires accurate knowledge of their Head-Related Transfer Functions (HRTFs). However, these vary due to differences in physical features and can lead to the incorrect simulation of sound if the HRTFs used are too dissimilar to a listener’s. This issue is exacerbated by the use of a hearing device as sound is transmitted to the eardrum from a microphone located elsewhere on the ear, changing the path of sound and consequently the HRTFs. This project presents a method of identifying a suitable set of HRTFs from a dataset, performing better than chance and leads to a localisation error 1.2◦greater than a subject using their HRTFs.
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Auditory rehabilitation, Hearing Aids, HRTF, Localisation, Localization, Virtual-Reality, Electrical engineering, Acoustics, Audiology
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