The Effect of the Grid Resolution of Binaural Room Acoustic Auralization on Spatial and Timbral Fidelity

Dale Johnson; Hyunkook Lee

The Effect of the Grid Resolution of Binaural Room Acoustic Auralization on Spatial and Timbral Fidelity

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

Abstract

This paper investigates the effect of the grid resolution of binaural room acoustic auralization on spatial and timbral fidelity. Binaural concert hall stimuli were generated using a virtual acoustics program utilizing image source and ray tracing techniques. Each image source and ray were binaurally synthesized using Lebedev grids of increasing resolution from 6 to 5810 (reference) points. A MUSHRA test was performed where subjects rated the magnitudes of spatial and timbral differences of each stimulus to the reference. Overall, it was found that on the MUSHRA scale, 6 points were perceived to be "Fair," 14 points "Good," and 26 points and above all "Excellent" on the grading scale, for both spatial and timbral fidelity.

Original language	English
Title of host publication	Proceedings of the 147th Audio Engineering Society International Convention 2019
Editors	Areti Andreopoulou, Braxton Boren
Publisher	Audio Engineering Society
ISBN (Print)	9781942220312
Publication status	Published - 8 Oct 2019
Event	147th Audio Engineering Society Convention - Jarvits Center, New York, United States Duration: 16 Oct 2019 → 19 Oct 2019 Conference number: 147 http://www.aes.org/events/147/

Conference

Conference	147th Audio Engineering Society Convention
Country/Territory	United States
City	New York
Period	16/10/19 → 19/10/19
Internet address	http://www.aes.org/events/147/

Access to Document

http://www.aes.org/e-lib/browse.cfm?elib=20675Licence: Unspecified

Cite this

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title = "The Effect of the Grid Resolution of Binaural Room Acoustic Auralization on Spatial and Timbral Fidelity",

abstract = "This paper investigates the effect of the grid resolution of binaural room acoustic auralization on spatial and timbral fidelity. Binaural concert hall stimuli were generated using a virtual acoustics program utilizing image source and ray tracing techniques. Each image source and ray were binaurally synthesized using Lebedev grids of increasing resolution from 6 to 5810 (reference) points. A MUSHRA test was performed where subjects rated the magnitudes of spatial and timbral differences of each stimulus to the reference. Overall, it was found that on the MUSHRA scale, 6 points were perceived to be {"}Fair,{"} 14 points {"}Good,{"} and 26 points and above all {"}Excellent{"} on the grading scale, for both spatial and timbral fidelity.",

keywords = "Microphone Array, Sound Engineer, Stereophonic Recordings, Artchitectural acoustics, Grading",

author = "Dale Johnson and Hyunkook Lee",

year = "2019",

month = oct,

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language = "English",

isbn = "9781942220312",

editor = "Areti Andreopoulou and Braxton Boren",

booktitle = "Proceedings of the 147th Audio Engineering Society International Convention 2019",

publisher = "Audio Engineering Society",

address = "United States",

note = "147th Audio Engineering Society Convention ; Conference date: 16-10-2019 Through 19-10-2019",

url = "http://www.aes.org/events/147/",

}

Johnson, D & Lee, H 2019, The Effect of the Grid Resolution of Binaural Room Acoustic Auralization on Spatial and Timbral Fidelity. in A Andreopoulou & B Boren (eds), Proceedings of the 147th Audio Engineering Society International Convention 2019., 10303, Audio Engineering Society, 147th Audio Engineering Society Convention, New York, New York, United States, 16/10/19. <http://www.aes.org/e-lib/browse.cfm?elib=20675>

The Effect of the Grid Resolution of Binaural Room Acoustic Auralization on Spatial and Timbral Fidelity. / Johnson, Dale ; Lee, Hyunkook.
Proceedings of the 147th Audio Engineering Society International Convention 2019. ed. / Areti Andreopoulou; Braxton Boren. Audio Engineering Society, 2019. 10303.

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

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N2 - This paper investigates the effect of the grid resolution of binaural room acoustic auralization on spatial and timbral fidelity. Binaural concert hall stimuli were generated using a virtual acoustics program utilizing image source and ray tracing techniques. Each image source and ray were binaurally synthesized using Lebedev grids of increasing resolution from 6 to 5810 (reference) points. A MUSHRA test was performed where subjects rated the magnitudes of spatial and timbral differences of each stimulus to the reference. Overall, it was found that on the MUSHRA scale, 6 points were perceived to be "Fair," 14 points "Good," and 26 points and above all "Excellent" on the grading scale, for both spatial and timbral fidelity.

AB - This paper investigates the effect of the grid resolution of binaural room acoustic auralization on spatial and timbral fidelity. Binaural concert hall stimuli were generated using a virtual acoustics program utilizing image source and ray tracing techniques. Each image source and ray were binaurally synthesized using Lebedev grids of increasing resolution from 6 to 5810 (reference) points. A MUSHRA test was performed where subjects rated the magnitudes of spatial and timbral differences of each stimulus to the reference. Overall, it was found that on the MUSHRA scale, 6 points were perceived to be "Fair," 14 points "Good," and 26 points and above all "Excellent" on the grading scale, for both spatial and timbral fidelity.

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KW - Stereophonic Recordings

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BT - Proceedings of the 147th Audio Engineering Society International Convention 2019

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ER -

The Effect of the Grid Resolution of Binaural Room Acoustic Auralization on Spatial and Timbral Fidelity

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