A Head-Mounted Microphone Array for Binaural Rendering
Paper i proceeding, 2021

We recently presented a method for obtaining a spherical harmonic representation of a sound field based on microphones along the equator of a rigid spherical object that ideally has a size similar to that of a human head. We refer to this setup as an equatorial microphone array. Even more recently, we presented an extension of this method that allows for employing a scattering object that is approximately spherical such as a human head. The present paper provides an overview as well as a juxtaposition of the two solutions. We present an instrumental evaluation based on the application of binaural rendering of the captured sound fields by analysing simulated binaural transfer functions of both methods for a variety of scenarios.

equatorial microphone array

spherical microphone array

Binaural audio

virtual reality

Författare

Jens Ahrens

Chalmers, Arkitektur och samhällsbyggnadsteknik, Teknisk akustik

Hannes Helmholz

Chalmers, Arkitektur och samhällsbyggnadsteknik, Teknisk akustik

David Lou Alon

Facebook Reality Labs

Sebastia V. Amengual Gari

Facebook Reality Labs

2021 Immersive and 3D Audio: From Architecture to Automotive, I3DA 2021


978-1-6654-0998-8 (ISBN)

Immersive and 3D Audio: from Architecture to Automotive (I3DA)
Bologna, Italy,

Binaural reproduktion av inspelningar med sfäriska mikrofonsystem

Oculus Inc., 2018-05-01 -- 2019-04-30.

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Signalbehandling

DOI

10.1109/I3DA48870.2021.9610892

Mer information

Senast uppdaterat

2023-04-21