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Convention Paper

Simplified Source Directivity Rendering in Acoustic Virtual Reality Using the Directivity Sample Combination

Authors: Götz, Georg; Pulkki, Ville

AES Convention 147 · Paper 10286 · October 2019

Abstract

This contribution proposes a simplified rendering of source directivity patterns for the simulation and auralization of auditory scenes consisting of multiple listeners or sources. It is based on applying directivity filters of arbitrary directivity patterns at multiple, supposedly important directions, and approximating the filter outputs of intermediate directions by interpolation. This reduces the amount of required filtering operations considerably and thus increases the computational efficiency of the auralization. As a proof of concept, the simplification is evaluated from a technical as well as from a perceptual point of view for one specific use case. The promising results suggest further studies of the proposed simplification in the future to assess its applicability to more complex scenarios.

Details

Published in
AES Convention 147
AES Convention
147
Paper number
10286
Publication date
October 6, 2019
Session subject
Spatial Audio, Part 2
Affiliation
Aalto University, Espoo, Finland (See document for exact affiliation information.)
Type
Convention Paper