Directional bias equalisation of first-order binaural ambisonic rendering

Thomas McKenzie; Damian Murphy; Gavin Kearney

Directional bias equalisation of first-order binaural ambisonic rendering

Thomas McKenzie^*, Damian Murphy, Gavin Kearney

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Auditory system is more accurate at localising sounds in front than at lateral, rear and elevated directions. In virtual reality applications, where Ambisonic audio is presented to the user binaurally (over headphones) in conjunction with a head-mounted display, it is imperative that audio in the frontal direction is as accurate as possible. This paper presents a method for improving frontal high frequency reproduction of binaural Ambisonic rendering through a novel adaptation of the diffuse-field equalisation technique to exploit the non-uniform directional sensitivity of human hearing. The method is evaluated via spectral difference and a height localisation model, and results show improved frontal reproduction at the expense of lateral fidelity.

Original language	English
Title of host publication	AES International Conference on Audio for Virtual and Augmented Reality 2018
Subtitle of host publication	Science, Technology, Design, and Implementation
Publisher	Audio Engineering Society
Pages	213-221
Number of pages	9
ISBN (Electronic)	9781510870390
Publication status	Published - 11 Aug 2018
Event	AES International Conference on Audio for Virtual and Augmented Reality: Science, Technology, Design, and Implementation, AVAR 2018 - Redmond, United States Duration: 20 Aug 2018 → 22 Aug 2018

Publication series

Name	Proceedings of the AES International Conference
Volume	2018-August

Conference

Conference	AES International Conference on Audio for Virtual and Augmented Reality: Science, Technology, Design, and Implementation, AVAR 2018
Country/Territory	United States
City	Redmond
Period	20/08/18 → 22/08/18

Bibliographical note

Funding Information:
Thomas McKenzie was supported by a Google Faculty Research Award.

Publisher Copyright:
© Audio Engineering Society. All rights reserved.

Access to Document

http://www.aes.org/e-lib/browse.cfm?elib=19689

Cite this

McKenzie, T., Murphy, D., & Kearney, G. (2018). Directional bias equalisation of first-order binaural ambisonic rendering. In AES International Conference on Audio for Virtual and Augmented Reality 2018: Science, Technology, Design, and Implementation (pp. 213-221). (Proceedings of the AES International Conference; Vol. 2018-August). Audio Engineering Society. http://www.aes.org/e-lib/browse.cfm?elib=19689

@inproceedings{0645a4d7f4d847b791398147d9e0ff6b,

title = "Directional bias equalisation of first-order binaural ambisonic rendering",

abstract = "Auditory system is more accurate at localising sounds in front than at lateral, rear and elevated directions. In virtual reality applications, where Ambisonic audio is presented to the user binaurally (over headphones) in conjunction with a head-mounted display, it is imperative that audio in the frontal direction is as accurate as possible. This paper presents a method for improving frontal high frequency reproduction of binaural Ambisonic rendering through a novel adaptation of the diffuse-field equalisation technique to exploit the non-uniform directional sensitivity of human hearing. The method is evaluated via spectral difference and a height localisation model, and results show improved frontal reproduction at the expense of lateral fidelity.",

author = "Thomas McKenzie and Damian Murphy and Gavin Kearney",

note = "Funding Information: Thomas McKenzie was supported by a Google Faculty Research Award. Publisher Copyright: {\textcopyright} Audio Engineering Society. All rights reserved.; AES International Conference on Audio for Virtual and Augmented Reality: Science, Technology, Design, and Implementation, AVAR 2018 ; Conference date: 20-08-2018 Through 22-08-2018",

year = "2018",

month = aug,

day = "11",

language = "English",

series = "Proceedings of the AES International Conference",

publisher = "Audio Engineering Society",

pages = "213--221",

booktitle = "AES International Conference on Audio for Virtual and Augmented Reality 2018",

}

McKenzie, T , Murphy, D & Kearney, G 2018, Directional bias equalisation of first-order binaural ambisonic rendering. in AES International Conference on Audio for Virtual and Augmented Reality 2018: Science, Technology, Design, and Implementation. Proceedings of the AES International Conference, vol. 2018-August, Audio Engineering Society, pp. 213-221, AES International Conference on Audio for Virtual and Augmented Reality: Science, Technology, Design, and Implementation, AVAR 2018, Redmond, United States, 20/08/18. <http://www.aes.org/e-lib/browse.cfm?elib=19689>

Directional bias equalisation of first-order binaural ambisonic rendering. / McKenzie, Thomas ; Murphy, Damian ; Kearney, Gavin.

AES International Conference on Audio for Virtual and Augmented Reality 2018: Science, Technology, Design, and Implementation. Audio Engineering Society, 2018. p. 213-221 (Proceedings of the AES International Conference; Vol. 2018-August).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Murphy, Damian

AU - Kearney, Gavin

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N2 - Auditory system is more accurate at localising sounds in front than at lateral, rear and elevated directions. In virtual reality applications, where Ambisonic audio is presented to the user binaurally (over headphones) in conjunction with a head-mounted display, it is imperative that audio in the frontal direction is as accurate as possible. This paper presents a method for improving frontal high frequency reproduction of binaural Ambisonic rendering through a novel adaptation of the diffuse-field equalisation technique to exploit the non-uniform directional sensitivity of human hearing. The method is evaluated via spectral difference and a height localisation model, and results show improved frontal reproduction at the expense of lateral fidelity.

AB - Auditory system is more accurate at localising sounds in front than at lateral, rear and elevated directions. In virtual reality applications, where Ambisonic audio is presented to the user binaurally (over headphones) in conjunction with a head-mounted display, it is imperative that audio in the frontal direction is as accurate as possible. This paper presents a method for improving frontal high frequency reproduction of binaural Ambisonic rendering through a novel adaptation of the diffuse-field equalisation technique to exploit the non-uniform directional sensitivity of human hearing. The method is evaluated via spectral difference and a height localisation model, and results show improved frontal reproduction at the expense of lateral fidelity.

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Directional bias equalisation of first-order binaural ambisonic rendering

Abstract

Publication series

Conference

Bibliographical note

Access to Document

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Cite this