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Image source method based on the directional impulse responses

Jiarui Wang (The Australian National University); Prasanga Samarasinghe (Australian National University); thushara abhayapala (The Australian National University); Jihui (Aimee) Zhang (University of Southampton)

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09 Jun 2023

This paper presents the image source method for simulating the observed signals in the time-domain on the boundary of a spherical listening region. A wideband approach is used where all derivations are in the time-domain. The source emits a sequence of spherical wave fronts whose amplitudes could be related to the far-field directional impulse responses of a loudspeaker. Geometric methods are extensively used to model the observed signals. The spherical harmonic coefficients of the observed signals are also derived.

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