Perceived differences between natural and convolution reverberation types in 5.0 surround sound

This Graduate Thesis investigates the perceived differences between natural and convolution reverberation in surround sound. Two spaces with distinct reverberation times were used for this study. Initially three musical excerpts from three instruments (Cello, Oboe, and Piano) were recorded in a dr...

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Main Author: Shriram, Alluri R.
Other Authors: Humanistinen tiedekunta, Faculty of Humanities, Musiikin laitos, Department of Music, University of Jyväskylä, Jyväskylän yliopisto
Format: Master's thesis
Language:eng
Published: 2011
Subjects:
Online Access: https://jyx.jyu.fi/handle/123456789/27082
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author Shriram, Alluri R.
author2 Humanistinen tiedekunta Faculty of Humanities Musiikin laitos Department of Music University of Jyväskylä Jyväskylän yliopisto
author_facet Shriram, Alluri R. Humanistinen tiedekunta Faculty of Humanities Musiikin laitos Department of Music University of Jyväskylä Jyväskylän yliopisto Shriram, Alluri R. Humanistinen tiedekunta Faculty of Humanities Musiikin laitos Department of Music University of Jyväskylä Jyväskylän yliopisto
author_sort Shriram, Alluri R.
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description This Graduate Thesis investigates the perceived differences between natural and convolution reverberation in surround sound. Two spaces with distinct reverberation times were used for this study. Initially three musical excerpts from three instruments (Cello, Oboe, and Piano) were recorded in a dry studio environment. Then the Impulse Response (IR) of the spaces was captured using two methods: balloon burst and sine sweep. The dry excerpts were then recorded in the spaces to capture the natural reverberation pattern while the IRs were convolved with them to create the artificial reverberation excerpts. A listening test was then conducted using six perceptual scales to rate these 18 excerpts (3 reverberation types, 3 instruments and 2 spaces). The main findings were that the “artificiality” in the artificial excerpts could be perceived by the listeners. The sine sweep reverberation type was perceived to be more similar to the natural reverberation of the space rather than the balloon burst method. The two artificial reverberation types were better suited to a longer reverberation time and a larger space while being best suited for the Oboe and least suited for the Piano. Though a few interesting insights into the perception of convolution reverberation have been provided, the main success of this thesis is the creation of a methodology that can be used for future perceptual studies in artificial reverberation which aim to investigate and improve its perception.
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Two spaces with distinct reverberation times were used for this study. Initially three\r\nmusical excerpts from three instruments (Cello, Oboe, and Piano) were recorded in a dry studio\r\nenvironment. Then the Impulse Response (IR) of the spaces was captured using two methods: balloon burst\r\nand sine sweep. The dry excerpts were then recorded in the spaces to capture the natural reverberation\r\npattern while the IRs were convolved with them to create the artificial reverberation excerpts. A listening\r\ntest was then conducted using six perceptual scales to rate these 18 excerpts (3 reverberation types, 3\r\ninstruments and 2 spaces).\r\nThe main findings were that the \u201cartificiality\u201d in the artificial excerpts could be perceived by the listeners.\r\nThe sine sweep reverberation type was perceived to be more similar to the natural reverberation of the\r\nspace rather than the balloon burst method. 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spellingShingle Shriram, Alluri R. Perceived differences between natural and convolution reverberation types in 5.0 surround sound natural & convolution reverberation surround sound perceived differences listening test Music, Mind and Technology (maisteriohjelma) Master's Degree Programme in Music, Mind and Technology 3054 musiikki
title Perceived differences between natural and convolution reverberation types in 5.0 surround sound
title_full Perceived differences between natural and convolution reverberation types in 5.0 surround sound
title_fullStr Perceived differences between natural and convolution reverberation types in 5.0 surround sound Perceived differences between natural and convolution reverberation types in 5.0 surround sound
title_full_unstemmed Perceived differences between natural and convolution reverberation types in 5.0 surround sound Perceived differences between natural and convolution reverberation types in 5.0 surround sound
title_short Perceived differences between natural and convolution reverberation types in 5.0 surround sound
title_sort perceived differences between natural and convolution reverberation types in 5 0 surround sound
title_txtP Perceived differences between natural and convolution reverberation types in 5.0 surround sound
topic natural & convolution reverberation surround sound perceived differences listening test Music, Mind and Technology (maisteriohjelma) Master's Degree Programme in Music, Mind and Technology 3054 musiikki
topic_facet 3054 Master's Degree Programme in Music, Mind and Technology Music, Mind and Technology (maisteriohjelma) listening test musiikki natural & convolution reverberation perceived differences surround sound
url https://jyx.jyu.fi/handle/123456789/27082 http://www.urn.fi/URN:NBN:fi:jyu-2011052610924
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