Relation between acoustic measurements and the perceived diffuseness of a synthesised sound field
Relation between acoustic measurements and the perceived diffuseness of a synthesised sound field
This paper describes an investigation of different objective metrics for predicting the perceived diffuseness of reproduced sound and why common metrics, such as Interaural Cross-Correlation Coefficient (IACC), sound pressure level uniformity, and the diffuseness calculation used in Directional Audio Coding (DirAC), may be less appropriate for analysing the perceived diffuseness of a reproduced field than they are for architectural acoustics applications. A listening test was conducted to elicit the perceived diffuseness of sound fields of uncorrelated pink noise signals replayed over 19 different loudspeaker arrangements. Listeners rated how diffuse they perceived each stimulus. A range of different measurements of the sound field were then compared to the subjective test results. The data show that objective metrics do not always correlate well with the perceived diffuseness, especially for specific loudspeaker arrangements. Possible explanations of these results are discussed.
Cousins, Michael
143f6907-0907-4d8d-b2ff-68eb7419fb0e
Bleeck, Stefan
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Melchior, Frank
e9de06c1-5123-4100-b8ae-87290b6dcff0
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
2016
Cousins, Michael
143f6907-0907-4d8d-b2ff-68eb7419fb0e
Bleeck, Stefan
c888ccba-e64c-47bf-b8fa-a687e87ec16c
Melchior, Frank
e9de06c1-5123-4100-b8ae-87290b6dcff0
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Cousins, Michael, Bleeck, Stefan, Melchior, Frank and Fazi, Filippo
(2016)
Relation between acoustic measurements and the perceived diffuseness of a synthesised sound field.
ICA 2016: 22nd International Congress on Acoustics, , Buenos Aires, Argentina.
05 - 09 Sep 2016.
10 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
This paper describes an investigation of different objective metrics for predicting the perceived diffuseness of reproduced sound and why common metrics, such as Interaural Cross-Correlation Coefficient (IACC), sound pressure level uniformity, and the diffuseness calculation used in Directional Audio Coding (DirAC), may be less appropriate for analysing the perceived diffuseness of a reproduced field than they are for architectural acoustics applications. A listening test was conducted to elicit the perceived diffuseness of sound fields of uncorrelated pink noise signals replayed over 19 different loudspeaker arrangements. Listeners rated how diffuse they perceived each stimulus. A range of different measurements of the sound field were then compared to the subjective test results. The data show that objective metrics do not always correlate well with the perceived diffuseness, especially for specific loudspeaker arrangements. Possible explanations of these results are discussed.
Text
Michael Cousins ICA 2016 Final
- Accepted Manuscript
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e-pub ahead of print date: 5 September 2016
Published date: 2016
Venue - Dates:
ICA 2016: 22nd International Congress on Acoustics, , Buenos Aires, Argentina, 2016-09-05 - 2016-09-09
Organisations:
Acoustics Group
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Local EPrints ID: 398728
URI: http://eprints.soton.ac.uk/id/eprint/398728
PURE UUID: 5c8ffdd3-6a54-4c4f-a97c-b2e4a11bf246
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Date deposited: 01 Aug 2016 12:29
Last modified: 15 Mar 2024 03:32
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Author:
Frank Melchior
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