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Convention Paper

An Evolutionary Algorithm Approach to Customization of Non-Individualized Head Related Transfer Functions

Authors: Schwenker, Eric S.; Romigh, Griffin D.

AES Convention 137 · Paper 9153 · October 2014

Abstract

Currently, the commercialization of high-quality virtual auditory display technology is limited by the costly and time-consuming methods required for obtaining listener-specific head-related transfer functions (HRTFs), directionally-dependent filters that encode spatial information. As such, there is an increased interest in the estimation of individualized HRTFs based on non-acoustic data. This study highlights the capabilities of an evolutionary algorithm method applied to the complex parameter optimization problem that arises when HRTFs are fit to individuals (or populations), rather than acoustically measured. Results suggest the algorithm may be capable of providing HRTFs that improve localization through both personalization of generic HRTFs and the generation of an optimized set of generic HRTFs.

Details

Published in
AES Convention 137
AES Convention
137
Paper number
9153
Publication date
October 6, 2014
Session subject
Spatial Audio
Affiliation
Carnegie Mellon University, Pittsburgh, PA, USA; Air Force Research Labs, Wright Patterson Air Force Base, OH, USA (See document for exact affiliation information.)
Type
Convention Paper