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Convention Paper

Calculation of Directivity Patterns from Spherical Microphone Array Recordings

Authors: Anemüller, Carlotta; Herre, Jürgen

AES Convention 147 · Paper 10285 · October 2019

Abstract

Taking into account the direction-dependent radiation of natural sound sources (such as musical instruments) can help to enhance auralization processing and thus improves the plausibility of simulated acoustical environments as, e.g., found in virtual reality (VR) systems. In order to quantify this direction-dependent behavior, usually so-called directivity patterns are used. This paper investigates two different methods that can be used to calculate directivity patterns from spherical microphone array recordings. A comparison between both calculation methods is performed based on the resulting directivity patterns. Furthermore, the directivity patterns of several musical instruments are analyzed and important measures are extracted. For all calculations, the publicly available anechoic microphone array measurements database recorded at the Technical University Berlin (TU Berlin) was used.

Details

Published in
AES Convention 147
AES Convention
147
Paper number
10285
Publication date
October 6, 2019
Session subject
Posters: Room Acoustics
Affiliation
International Audio Laboratories Erlangen, Erlangen, Germany; Fraunhofer IIS, Erlangen, Germany (See document for exact affiliation information.)
Type
Convention Paper