A High Resolution and Full-Spherical Head-Related Transfer Function Database for Different Head-Above-Torso Orientations

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 degrees, 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.