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Engineering Brief

Free Database of Low Frequency Corrected Head-Related Transfer Functions and Headphone Compensation Filters

Authors: Erbes, Vera; Geier, Matthias; Wierstorf, Hagen; Spors, Sascha

AES Convention 142 · Paper 325 · May 2017

Abstract

A database of publicly available head-related transfer functions (HRTFs) of a KEMAR manikin together with headphone compensation filters for various headphone types is presented. The HRTFs are based on previously published data from Wierstorf et al. (2011) that have additionally been corrected for low frequencies. This compensates for missing information due to low excitation energy in this frequency range during the measurement and allows for shorter impulse responses. A further benefit is demonstrated by the interpolation of HRTFs via magnitude and phase that is only possible with consistent phase information. Both the low-frequency correction as well as the generation of the headphone compensation filters are accompanied by Matlab code to document the processing.

Details

Published in
AES Convention 142
AES Convention
142
Paper number
325
Publication date
May 6, 2017
Session subject
Posters: Spatial Audio—Binaural
Affiliation
University of Rostock, Rostock, Germany; Technical University of Ilmenau, Ilmenau, Germany (See document for exact affiliation information.)
Type
Engineering Brief