A high resolution and full-spherical head-related transfer function database for different head-above-torso orientations

Abstract

Head-related transfer functions (HRTFs) were acoustically measured and numerically simulated for the FABIAN head and torso simulator on a full-spherical and high resolution sampling grid. Moreover, HRTFs were acquired for 11 horizontal head-above-torso orientations, covering the typical range of motion of ±50°, making it possible to account for head movements of the listeners in dynamic binaural auralizations in a physically correct manner. In lack of an external reference for HRTFs, measured and simulated data sets were cross-validated by applying auditory models for localization performance and spectral coloration and by correlation analyses. The results indicate a high degree of similarity between the two data sets regarding all tested aspects, thus suggesting that they are free of systematic errors. The HRTF database is publicly available from https://doi.org/10.14279/depositonce-5718.2 and is accompanied by a wide range of headphone filters for use in binaural synthesis.