MusICA Seminars: www.musica.ed.a...
Speaker: Fabian Brinkmann (Technical University of Berlin)
Title: Head-related transfer function interpolation: An overview of algorithmic approaches
Date: November 2023
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Abstract:
Head-related transfer functions (HRTFs) describe the free field sound propagation from a source to the listener’s ears. Due to reflections and diffraction on the listener’s ears, head and torso, these filters contain information that is evaluated by the human auditory system to infer the position of the source. HRTFs are essential for almost all virtual and augmented reality systems that convey spatial auditory information. Since the auditory system is highly sensitive to changes in source position, such systems require HRTFs with high spatial resolution. In this talk I will give an overview of algorithmic, i.e. non-learning based, algorithms for HRTF interpolation that provide a way to obtain HRTFs in arbitrary spatial resolution. Finally, I will compare the performance of algorithmic and learning-based approaches. To make the talk accessible to audiences from other acoustic disciplines, I will start with a brief introduction to HRTFs and spatial hearing.