Source position interpolation of spatial room impulse responses
McKenzie T, Schlecht SJ (2023)
Publication Type: Conference contribution
Publication year: 2023
Publisher: Audio Engineering Society
Conference Proceedings Title: AES Europe 2023: 154th Audio Engineering Society Convention
Event location: Espoo, Helsinki, FIN
ISBN: 9781713877783
Abstract
Measured spatial room impulse responses (SRIRs) are often used for realistic six degrees-of-freedom (6DoF) virtual reality applications, as they allow for the high quality capture and reproduction of a room’s acoustics. Dense sets of SRIR measurements are time consuming to acquire, especially for multiple source and receiver combinations, and so interpolation of sparse measurement sets is required. This paper presents a method for interpolating between higher-order Ambisonic SRIRs with a fixed receiver position but different sound source positions, using a previous methodology. The method is based on linear interpolation with spectral equalisation and RMS compensation, though direct sound, early reflections and late reverberation are processed individually. In a numerical comparison to a basic linear interpolation, the proposed method is shown to more smoothly fade between source positions in root-mean-square amplitude and direction-of-arrival metrics.
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United Kingdom (GB)
Finland (FI)How to cite
APA:
McKenzie, T., & Schlecht, S.J. (2023). Source position interpolation of spatial room impulse responses. In AES Europe 2023: 154th Audio Engineering Society Convention. Espoo, Helsinki, FIN: Audio Engineering Society.
MLA:
McKenzie, Thomas, and Sebastian J. Schlecht. "Source position interpolation of spatial room impulse responses." Proceedings of the AES Europe 2023: 154th Audio Engineering Society Convention, Espoo, Helsinki, FIN Audio Engineering Society, 2023.
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