Estimation of Spectral Notches From Pinna Meshes: Insights From a Simple Computational Model

While previous research on spatial sound perception investigated the physical mechanisms producing most relevant elevation cues, how spectral notches are generated and related to individual morphology of human pinna is still a topic debate. Correctly modeling these important in particular lowest frequency notches, an essential step for individualizing Head-Related Transfer Functions (HRTFs). In this paper we propose simple computational model able predict center frequencies from ear meshes. We apply such highly controlled HRTF dataset built with specific purpose understanding contribution HRTF. Results show that approximate notch improved accuracy respect other state-of-the-art methods. By contrast, fails higher-order correctly. The proposed approximation supplements involved generating experimental HRTFs.