Capturing and rendering 360° VR audio using cardioid microphones

Hyunkook Lee

Capturing and rendering 360° VR audio using cardioid microphones

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

Abstract

This paper proposes a new microphone technique and a binaural rendering approach for 360º VR audio. Four cardioid microphones are arranged in a horizontal square, with 30 cm spacing and 90º subtended angle for each of the four pairs of adjacent microphones, in order to obtain the stereophonic recording angle (SRA) of 90º for a quadraphonic loudspeaker reproduction. The signals are binaurally synthesized with quadraphonic read-related impulse responses. This allows production of the same SRA for each of the four 90º segments whenever the listener rotates his or her head by 90º in a VR environment with a head-tracker, which is confirmed by a listening test. For vertical sound capturing, upward- and optional downward-facing cardioid microphones are added.

Original language	English
Title of host publication	Proceedings of the 2016 AES International Conference on Audio for Virtual and Augmented Reality
Publisher	Audio Engineering Society
Number of pages	10
Volume	2016-September
ISBN (Electronic)	9781942220107
Publication status	Published - 21 Sep 2016
Event	Audio Engineering Society International Conference on Audio for Virtual and Augmented Reality - Los Angeles, United States Duration: 30 Sep 2016 → 1 Oct 2016

Conference

Conference	Audio Engineering Society International Conference on Audio for Virtual and Augmented Reality
Abbreviated title	AES 2016
Country/Territory	United States
City	Los Angeles
Period	30/09/16 → 1/10/16

Access to Document

http://www.aes.org/e-lib/browse.cfm?elib=18511Licence: Unspecified

Cite this

@inproceedings{3de2296736914ee791a02b2706c9c472,

title = "Capturing and rendering 360° VR audio using cardioid microphones",

abstract = "This paper proposes a new microphone technique and a binaural rendering approach for 360º VR audio. Four cardioid microphones are arranged in a horizontal square, with 30 cm spacing and 90º subtended angle for each of the four pairs of adjacent microphones, in order to obtain the stereophonic recording angle (SRA) of 90º for a quadraphonic loudspeaker reproduction. The signals are binaurally synthesized with quadraphonic read-related impulse responses. This allows production of the same SRA for each of the four 90º segments whenever the listener rotates his or her head by 90º in a VR environment with a head-tracker, which is confirmed by a listening test. For vertical sound capturing, upward- and optional downward-facing cardioid microphones are added.",

keywords = "augmented reality, stereophonic recordings",

author = "Hyunkook Lee",

year = "2016",

month = sep,

day = "21",

language = "English",

volume = "2016-September",

booktitle = "Proceedings of the 2016 AES International Conference on Audio for Virtual and Augmented Reality",

publisher = "Audio Engineering Society",

address = "United States",

note = "Audio Engineering Society International Conference on Audio for Virtual and Augmented Reality, AES 2016 ; Conference date: 30-09-2016 Through 01-10-2016",

}

Lee, H 2016, Capturing and rendering 360° VR audio using cardioid microphones. in Proceedings of the 2016 AES International Conference on Audio for Virtual and Augmented Reality. vol. 2016-September, Audio Engineering Society, Audio Engineering Society International Conference on Audio for Virtual and Augmented Reality, Los Angeles, California, United States, 30/09/16. <http://www.aes.org/e-lib/browse.cfm?elib=18511>

TY - GEN

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AU - Lee, Hyunkook

PY - 2016/9/21

Y1 - 2016/9/21

N2 - This paper proposes a new microphone technique and a binaural rendering approach for 360º VR audio. Four cardioid microphones are arranged in a horizontal square, with 30 cm spacing and 90º subtended angle for each of the four pairs of adjacent microphones, in order to obtain the stereophonic recording angle (SRA) of 90º for a quadraphonic loudspeaker reproduction. The signals are binaurally synthesized with quadraphonic read-related impulse responses. This allows production of the same SRA for each of the four 90º segments whenever the listener rotates his or her head by 90º in a VR environment with a head-tracker, which is confirmed by a listening test. For vertical sound capturing, upward- and optional downward-facing cardioid microphones are added.

AB - This paper proposes a new microphone technique and a binaural rendering approach for 360º VR audio. Four cardioid microphones are arranged in a horizontal square, with 30 cm spacing and 90º subtended angle for each of the four pairs of adjacent microphones, in order to obtain the stereophonic recording angle (SRA) of 90º for a quadraphonic loudspeaker reproduction. The signals are binaurally synthesized with quadraphonic read-related impulse responses. This allows production of the same SRA for each of the four 90º segments whenever the listener rotates his or her head by 90º in a VR environment with a head-tracker, which is confirmed by a listening test. For vertical sound capturing, upward- and optional downward-facing cardioid microphones are added.

KW - augmented reality

KW - stereophonic recordings

UR - http://www.scopus.com/inward/record.url?scp=85026536184&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:85026536184

VL - 2016-September

BT - Proceedings of the 2016 AES International Conference on Audio for Virtual and Augmented Reality

PB - Audio Engineering Society

T2 - Audio Engineering Society International Conference on Audio for Virtual and Augmented Reality

Y2 - 30 September 2016 through 1 October 2016

ER -

Capturing and rendering 360° VR audio using cardioid microphones

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