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A Spherical Near-Field HRTF Set for Auralization and Psychoacoustic Research

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Head-related transfer functions (HRTFs) describe the directional filtering caused by the head, pinna, and torso and are an essential component of binaural synthesis systems. Currently most of these systems are based on far-field HRTFs and thus do not consider acoustical specifics of nearby sound sources. One reason might be that full spherical near-field HRTF sets are rarely available. In this paper we present an HRTF set of a Neumann KU100 dummy head and a technical evaluation of the set. The set is freely available for download and contains post-processed impulse responses, captured on a circular and full spherical grid at distances between 0.25 m and 1.50 m. It can be used for psychoacoustic research and for applications where nearby virtual sound sources shall be auralized.

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