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Auralization of Sources with Controllable Directivity using the upscaled Source-and-Receiver-Directional RIR

Authors Zagala, F.
Year 2018
Thesis Type Audio Engineering project
Topic Spatial Audio
Keywords audio recording and reproduction, psychoacoustics
Abstract The assumption of spatial and temporal sparsity of acoustical reflections led to the Spatial Decomposition Method (SDM) for Room Impulse Responses, which was proposed in 2013 by Sakari Tervo [TPKL13]. Based on efficient B-format measurements, the SDM method allows for auralization of omnidirectional sources with a sharpened directional RIR (DRIR) at the receiver. A generalization of the SDM is proposed for the Source and Receiver Directional (SRD) RIR, which allows for auralization of sources with controllable directivity [ZBS+17]. In this project the perceptual aspects of the auralization with an efficiently measured SRD-RIR are discussed based on a comparative listening experiment involving the variable-directivity icosahedral loudspeaker (IKO).
Supervisors Zaunschirm, M.