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Conference Paper

Feasibility of Virtual Auditory Display Customization through Principal Component Modeling

Authors: Fink, Kimberly J.; Ray, Laura

AES Conference: 45th International Conference: Applications of Time-Frequency Processing in Audio · Paper 4-4 · March 2012

Abstract

Prior research has investigated development of virtual auditory displays (VADs) using low-dimensional models of head related transfer functions (HRTFs) as a function of a finite number of principal components (PCs) and associated weights (PCWs). This paper investigates the effect of PCWs on horizontal plane HRTFs derived from a database of HRIRs through analytical optimization experiments. Analytical results provide insight on the effect of tuning PCWs on spectral features of the HRTF. Subject testing is performed to determine the sensitivity of auditory perception to variations in the PCWs comparable to those required for analytical optimization. Reduced order modeling is used to compactly represent each HRTF. Preliminary results show that a human can conduct the tuning procedure and reduce localization errors.

Details

Published in
AES Conference: 45th International Conference: Applications of Time-Frequency Processing in Audio
Paper number
4-4
Publication date
March 6, 2012
Session subject
Spatial Sound
Affiliation
Dartmouth College, Hanover, NH, USA (See document for exact affiliation information.)
Type
Conference Paper