Volumetric reconstruction of acoustic energy flows in a reverberation room

Mélanie Nolan*, Efren Fernandez-Grande

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

This study examines the spatial and directional properties of net energy flows in a reverberation chamber. Based on measurements with a spherical array, a method is proposed to estimate the flows of acoustic energy in the volume surrounding the array. The proposed method is used to examine the steady state, early decay, and late decay of the sound field in a reverberation room (both empty and with an absorber on the floor). The results show that the approach is successful in characterizing the spatio-spectral and spatio-temporal properties of power flows in reverberant sound fields, constituting a valuable analysis tool.

Original languageEnglish
JournalJournal of the Acoustical Society of America
Volume145
Issue number3
Pages (from-to)EL203-EL208
ISSN0001-4966
DOIs
Publication statusPublished - 1 Mar 2019

Cite this

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title = "Volumetric reconstruction of acoustic energy flows in a reverberation room",
abstract = "This study examines the spatial and directional properties of net energy flows in a reverberation chamber. Based on measurements with a spherical array, a method is proposed to estimate the flows of acoustic energy in the volume surrounding the array. The proposed method is used to examine the steady state, early decay, and late decay of the sound field in a reverberation room (both empty and with an absorber on the floor). The results show that the approach is successful in characterizing the spatio-spectral and spatio-temporal properties of power flows in reverberant sound fields, constituting a valuable analysis tool.",
author = "M{\'e}lanie Nolan and Efren Fernandez-Grande",
year = "2019",
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Volumetric reconstruction of acoustic energy flows in a reverberation room. / Nolan, Mélanie; Fernandez-Grande, Efren.

In: Journal of the Acoustical Society of America, Vol. 145, No. 3, 01.03.2019, p. EL203-EL208.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Volumetric reconstruction of acoustic energy flows in a reverberation room

AU - Nolan, Mélanie

AU - Fernandez-Grande, Efren

PY - 2019/3/1

Y1 - 2019/3/1

N2 - This study examines the spatial and directional properties of net energy flows in a reverberation chamber. Based on measurements with a spherical array, a method is proposed to estimate the flows of acoustic energy in the volume surrounding the array. The proposed method is used to examine the steady state, early decay, and late decay of the sound field in a reverberation room (both empty and with an absorber on the floor). The results show that the approach is successful in characterizing the spatio-spectral and spatio-temporal properties of power flows in reverberant sound fields, constituting a valuable analysis tool.

AB - This study examines the spatial and directional properties of net energy flows in a reverberation chamber. Based on measurements with a spherical array, a method is proposed to estimate the flows of acoustic energy in the volume surrounding the array. The proposed method is used to examine the steady state, early decay, and late decay of the sound field in a reverberation room (both empty and with an absorber on the floor). The results show that the approach is successful in characterizing the spatio-spectral and spatio-temporal properties of power flows in reverberant sound fields, constituting a valuable analysis tool.

U2 - 10.1121/1.5092820

DO - 10.1121/1.5092820

M3 - Journal article

VL - 145

SP - EL203-EL208

JO - Acoustical Society of America. Journal

JF - Acoustical Society of America. Journal

SN - 0001-4966

IS - 3

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