Increasing the Vertical Image Spread of Natural Sound Sources Using Band-Limited Interchannel Decorrelation

Christopher Gribben; Hyunkook Lee

Increasing the Vertical Image Spread of Natural Sound Sources Using Band-Limited Interchannel Decorrelation

Christopher Gribben, Hyunkook Lee

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

Abstract

An experiment has been conducted to assess the perceptual effect of vertical interchannel decorrelation between pairs of vertically-spaced loudspeakers. The study focuses on band-limiting the vertical decorrelation of natural sound sources in groups of octave-bands, while reproducing the unprocessed octave-bands monophonically through the main-layer loudspeaker. The upper limit of the vertical decorrelation is fixed at the 16 kHz octave-band, with the lower limit varied across eight octave-bands (centre frequencies 63 Hz to 8 kHz). A monophonic unprocessed condition was also included in a multiple comparison test alongside the eight decorrelated conditions. The results demonstrate that vertical decorrelation of the 500 Hz octave-band and above can significantly increase the vertical spread of an auditory image, similar to that of broadband decorrelation.

Original language	English
Title of host publication	2019 AES International Conference on Immersive and Interactive Audio
Editors	Tony Tew, Duncan Williams
Publisher	Audio Engineering Society
ISBN (Print)	9781942220275
Publication status	Published - 17 Mar 2019
Event	AES International Conference on Immersive and Interactive Audio - University of York, York, United Kingdom Duration: 27 Mar 2019 → 29 Mar 2019 http://www.aes.org/conferences/2019/immersive/

Conference

Conference	AES International Conference on Immersive and Interactive Audio
Country/Territory	United Kingdom
City	York
Period	27/03/19 → 29/03/19
Internet address	http://www.aes.org/conferences/2019/immersive/

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http://www.aes.org/e-lib/browse.cfm?elib=20397Licence: Unspecified

Cite this

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title = "Increasing the Vertical Image Spread of Natural Sound Sources Using Band-Limited Interchannel Decorrelation",

abstract = "An experiment has been conducted to assess the perceptual effect of vertical interchannel decorrelation between pairs of vertically-spaced loudspeakers. The study focuses on band-limiting the vertical decorrelation of natural sound sources in groups of octave-bands, while reproducing the unprocessed octave-bands monophonically through the main-layer loudspeaker. The upper limit of the vertical decorrelation is fixed at the 16 kHz octave-band, with the lower limit varied across eight octave-bands (centre frequencies 63 Hz to 8 kHz). A monophonic unprocessed condition was also included in a multiple comparison test alongside the eight decorrelated conditions. The results demonstrate that vertical decorrelation of the 500 Hz octave-band and above can significantly increase the vertical spread of an auditory image, similar to that of broadband decorrelation.",

author = "Christopher Gribben and Hyunkook Lee",

year = "2019",

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day = "17",

language = "English",

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editor = "Tony Tew and Duncan Williams",

booktitle = "2019 AES International Conference on Immersive and Interactive Audio",

publisher = "Audio Engineering Society",

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note = "AES International Conference on Immersive and Interactive Audio ; Conference date: 27-03-2019 Through 29-03-2019",

url = "http://www.aes.org/conferences/2019/immersive/",

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Gribben, C & Lee, H 2019, Increasing the Vertical Image Spread of Natural Sound Sources Using Band-Limited Interchannel Decorrelation. in T Tew & D Williams (eds), 2019 AES International Conference on Immersive and Interactive Audio., 78, Audio Engineering Society, AES International Conference on Immersive and Interactive Audio, York, United Kingdom, 27/03/19. <http://www.aes.org/e-lib/browse.cfm?elib=20397>

Increasing the Vertical Image Spread of Natural Sound Sources Using Band-Limited Interchannel Decorrelation. / Gribben, Christopher; Lee, Hyunkook.

2019 AES International Conference on Immersive and Interactive Audio. ed. / Tony Tew; Duncan Williams. Audio Engineering Society, 2019. 78.

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

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N2 - An experiment has been conducted to assess the perceptual effect of vertical interchannel decorrelation between pairs of vertically-spaced loudspeakers. The study focuses on band-limiting the vertical decorrelation of natural sound sources in groups of octave-bands, while reproducing the unprocessed octave-bands monophonically through the main-layer loudspeaker. The upper limit of the vertical decorrelation is fixed at the 16 kHz octave-band, with the lower limit varied across eight octave-bands (centre frequencies 63 Hz to 8 kHz). A monophonic unprocessed condition was also included in a multiple comparison test alongside the eight decorrelated conditions. The results demonstrate that vertical decorrelation of the 500 Hz octave-band and above can significantly increase the vertical spread of an auditory image, similar to that of broadband decorrelation.

AB - An experiment has been conducted to assess the perceptual effect of vertical interchannel decorrelation between pairs of vertically-spaced loudspeakers. The study focuses on band-limiting the vertical decorrelation of natural sound sources in groups of octave-bands, while reproducing the unprocessed octave-bands monophonically through the main-layer loudspeaker. The upper limit of the vertical decorrelation is fixed at the 16 kHz octave-band, with the lower limit varied across eight octave-bands (centre frequencies 63 Hz to 8 kHz). A monophonic unprocessed condition was also included in a multiple comparison test alongside the eight decorrelated conditions. The results demonstrate that vertical decorrelation of the 500 Hz octave-band and above can significantly increase the vertical spread of an auditory image, similar to that of broadband decorrelation.

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Increasing the Vertical Image Spread of Natural Sound Sources Using Band-Limited Interchannel Decorrelation

Abstract

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