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The diffuse sound object

The diffuse sound object
The diffuse sound object
The theoretical diffuse sound field is one that is generated using an infinite number of uncorrelated plane waves from all directions. Spatial audio, in contrast, is generally delivered using a finite number of loudspeakers, potentially as few as only two. Therefore there is a reduction in the diffuseness of the sound field when reproducing diffuse sound fields using loudspeakers. It is therefore important that sound fields such as reverberation, rain or audience noise - that are approximations of a theoretical diffuse sound field - are reproduced with minimal perceptual degradation to maximise the spatial audio experience. In this research, the perception of diffuseness has been investigated thoroughly using a series of listening tests. Additionally, the relationships between the subjective perceived diffuseness and objective metrics for measuring diffuseness have been investigated leading to a simple metric for perceived diffuseness based on the spatial coherence.
University of Southampton
Cousins, Michael Patrick
143f6907-0907-4d8d-b2ff-68eb7419fb0e
Cousins, Michael Patrick
143f6907-0907-4d8d-b2ff-68eb7419fb0e
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807

Cousins, Michael Patrick (2019) The diffuse sound object. University of Southampton, Doctoral Thesis, 216pp.

Record type: Thesis (Doctoral)

Abstract

The theoretical diffuse sound field is one that is generated using an infinite number of uncorrelated plane waves from all directions. Spatial audio, in contrast, is generally delivered using a finite number of loudspeakers, potentially as few as only two. Therefore there is a reduction in the diffuseness of the sound field when reproducing diffuse sound fields using loudspeakers. It is therefore important that sound fields such as reverberation, rain or audience noise - that are approximations of a theoretical diffuse sound field - are reproduced with minimal perceptual degradation to maximise the spatial audio experience. In this research, the perception of diffuseness has been investigated thoroughly using a series of listening tests. Additionally, the relationships between the subjective perceived diffuseness and objective metrics for measuring diffuseness have been investigated leading to a simple metric for perceived diffuseness based on the spatial coherence.

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Thesis_Final_Submitted_19_06_2019 - Version of Record
Available under License University of Southampton Thesis Licence.
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More information

Published date: 2019
Additional Information: Research dataset for this thesis is available at: Cousins, Michael, Patrick (2019) The Diffuse Sound Object, Archive Dataset. University of Southampton doi:10.5258/SOTON/D0984

Identifiers

Local EPrints ID: 442615
URI: http://eprints.soton.ac.uk/id/eprint/442615
PURE UUID: 89735108-2e4a-4471-b0a8-3b49e3fa1346
ORCID for Filippo Fazi: ORCID iD orcid.org/0000-0003-4129-1433

Catalogue record

Date deposited: 21 Jul 2020 16:33
Last modified: 17 Mar 2024 03:16

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