Opens in a new tab

AES E-Library

← Back to search

Engineering Brief Open Access

Ambisonics Directional Room Impulse Response as a New Convention of the Spatially Oriented Format for Acoustics

Authors: Pérez-López, Andrés; De Muynke, Julien

AES Convention 144 · Paper 448 · May 2018

Abstract

Room Impulse Response (RIR) measurements are one of the most common ways to capture acoustic characteristics of a given space. When performed with microphone arrays, the RIRs inherently contain directional information. Due to the growing interest in Ambisonics and audio for Virtual Reality, new spherical microphone arrays recently hit the market. Accordingly, several databases of Directional RIRs (DRIRs) measured with such arrays, referred to as Ambisonics DRIRs, have been publicly released. However, there is no format consensus among databases. With the aim of improving interoperability, we propose an exchange format for Ambisonics DRIRs, as a new Spatially Oriented Format for Acoustics (SOFA) convention. As a use-case, some existing databases have been converted and released following our proposal.

Details

Published in
AES Convention 144
AES Convention
144
Paper number
448
Publication date
May 6, 2018
Session subject
Transducers & Psychoacoustics
Affiliation
Eurecat, Barcelona, Spain; Pompeu Fabra University, Barcelona, Spain; Fundacio Eurecat, Barcelona, Spain (See document for exact affiliation information.)
Type
Engineering Brief