A Bi-RADIAL Approach to Ambisonics

Calum Armstrong; Damian Thomas Murphy; Gavin Cyril Kearney

A Bi-RADIAL Approach to Ambisonics

Calum Armstrong, Damian Thomas Murphy, Gavin Cyril Kearney

Research output: Contribution to conference › Paper › peer-review

Abstract

This paper introduces Binaural Rendering of Audio by Duplex Independent Auralized Listening (Bi-RADIAL), a new scheme for the reproduction of 3D sound over headphones. Principles, considerations, and methods of Bi-RADIAL decoding and their application within the binaural rendering of Virtual Ambisonics is discussed. Three methods of delivering Bi-RADIAL Ambisonics are compared and the advantages of exploiting a Bi-RADIAL scheme over traditional binaural-based Ambisonic playback are highlighted. Simulation results for standard and Bi-RADIAL Ambisonic decoders are given using a perceptual based comparison of their frequency spectra. Analysis is made for 1st, 3rd, and 5th order decoders considering both basic and maxrE weighting schemes. Results show a clear improvement in spectral reconstruction when using a Bi-RADIAL decoder

Original language	English
Number of pages	10
Publication status	Published - 11 Aug 2018
Event	2018 AES International Conference on Audio for Virtual and Augmented Reality - DigiPen Institute of Technology, Redmond, United States Duration: 20 Aug 2018 → 22 Aug 2018 http://www.aes.org/conferences/2018/avar/

Conference

Conference	2018 AES International Conference on Audio for Virtual and Augmented Reality
Country/Territory	United States
City	Redmond
Period	20/08/18 → 22/08/18
Internet address	http://www.aes.org/conferences/2018/avar/

Keywords

audio
Ambison
Binaural
VR

Access to Document

http://www.aes.org/e-lib/browse.cfm?elib=19690Licence: Unspecified

Cite this

@conference{c430e02615c6496594436ab615a0c7a6,

title = "A Bi-RADIAL Approach to Ambisonics",

abstract = "This paper introduces Binaural Rendering of Audio by Duplex Independent Auralized Listening (Bi-RADIAL), a new scheme for the reproduction of 3D sound over headphones. Principles, considerations, and methods of Bi-RADIAL decoding and their application within the binaural rendering of Virtual Ambisonics is discussed. Three methods of delivering Bi-RADIAL Ambisonics are compared and the advantages of exploiting a Bi-RADIAL scheme over traditional binaural-based Ambisonic playback are highlighted. Simulation results for standard and Bi-RADIAL Ambisonic decoders are given using a perceptual based comparison of their frequency spectra. Analysis is made for 1st, 3rd, and 5th order decoders considering both basic and maxrE weighting schemes. Results show a clear improvement in spectral reconstruction when using a Bi-RADIAL decoder",

keywords = "audio, Ambison, Binaural, VR",

author = "Calum Armstrong and Murphy, {Damian Thomas} and Kearney, {Gavin Cyril}",

year = "2018",

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day = "11",

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note = "2018 AES International Conference on Audio for Virtual and Augmented Reality ; Conference date: 20-08-2018 Through 22-08-2018",

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TY - CONF

T1 - A Bi-RADIAL Approach to Ambisonics

AU - Armstrong, Calum

AU - Murphy, Damian Thomas

AU - Kearney, Gavin Cyril

PY - 2018/8/11

Y1 - 2018/8/11

N2 - This paper introduces Binaural Rendering of Audio by Duplex Independent Auralized Listening (Bi-RADIAL), a new scheme for the reproduction of 3D sound over headphones. Principles, considerations, and methods of Bi-RADIAL decoding and their application within the binaural rendering of Virtual Ambisonics is discussed. Three methods of delivering Bi-RADIAL Ambisonics are compared and the advantages of exploiting a Bi-RADIAL scheme over traditional binaural-based Ambisonic playback are highlighted. Simulation results for standard and Bi-RADIAL Ambisonic decoders are given using a perceptual based comparison of their frequency spectra. Analysis is made for 1st, 3rd, and 5th order decoders considering both basic and maxrE weighting schemes. Results show a clear improvement in spectral reconstruction when using a Bi-RADIAL decoder

AB - This paper introduces Binaural Rendering of Audio by Duplex Independent Auralized Listening (Bi-RADIAL), a new scheme for the reproduction of 3D sound over headphones. Principles, considerations, and methods of Bi-RADIAL decoding and their application within the binaural rendering of Virtual Ambisonics is discussed. Three methods of delivering Bi-RADIAL Ambisonics are compared and the advantages of exploiting a Bi-RADIAL scheme over traditional binaural-based Ambisonic playback are highlighted. Simulation results for standard and Bi-RADIAL Ambisonic decoders are given using a perceptual based comparison of their frequency spectra. Analysis is made for 1st, 3rd, and 5th order decoders considering both basic and maxrE weighting schemes. Results show a clear improvement in spectral reconstruction when using a Bi-RADIAL decoder

KW - audio

KW - Ambison

KW - Binaural

KW - VR

M3 - Paper

T2 - 2018 AES International Conference on Audio for Virtual and Augmented Reality

Y2 - 20 August 2018 through 22 August 2018

ER -