OperaV1, PascalFrancis, Checkpoint, bibRecord, 000674

Measured early lateral energy fractions in concert halls and opera houses

Identifieur interne : 000674 ( PascalFrancis/Checkpoint ); précédent : 000673; suivant : 000675

Measured early lateral energy fractions in concert halls and opera houses

Auteurs : M. Barron [Royaume-Uni]

Source :

Journal of sound and vibration [ 0022-460X ] ; 2000.

RBID : Pascal:00-0262962

Descripteurs français

Pascal (Inist)
- Acoustique, Méthode mesure, Acoustique salle, Source sonore, Réflexion onde acoustique, Salle concert, Analyse objective, Opéra bâtiment, Auditorium, Corrélation croisée, Latéral, Signal acoustique, Niveau acoustique, 4355.
Wicri :
- topic : Acoustique.

English descriptors

KwdEn :
- Acoustic signal, Acoustic wave reflection, Acoustics, Auditorium, Concert hall, Cross correlation, Lateral, Measurement method, Objective analysis, Opera(building), Room acoustics, Sound level, Sound source.

Abstract

In the 30 years since early lateral reflections were first suggested as important for concert halls, spatial impression and source broadening have become almost universally accepted as essential characteristics of halls with good acoustics. Two objective measures of source broadening have been proposed. Measured values of the best defined of these measures, the early lateral energy fraction (LF), are considered here. Results from two independent measurement surveys are discussed. Comparisons of LF values by hall show a significant link between hall mean LF and hall width. There is however considerable overlap between measured LF values in different halls so the relevance of describing halls by their mean early lateral energy fraction values is questionable. The behaviour of LF values within auditoria is discussed for different concert hall plan forms and within opera houses. A measure of source broadening including sound level is proposed and results considered in the context of auditorium design.

Affiliations:

Royaume-Uni

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Pascal:00-0262962

Le document en format XML

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<author><name sortKey="Barron, M" sort="Barron, M" uniqKey="Barron M" first="M." last="Barron">M. Barron</name>
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<term>Concert hall</term>
<term>Cross correlation</term>
<term>Lateral</term>
<term>Measurement method</term>
<term>Objective analysis</term>
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<term>Sound level</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Acoustique</term>
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<front><div type="abstract" xml:lang="en">In the 30 years since early lateral reflections were first suggested as important for concert halls, spatial impression and source broadening have become almost universally accepted as essential characteristics of halls with good acoustics. Two objective measures of source broadening have been proposed. Measured values of the best defined of these measures, the early lateral energy fraction (LF), are considered here. Results from two independent measurement surveys are discussed. Comparisons of LF values by hall show a significant link between hall mean LF and hall width. There is however considerable overlap between measured LF values in different halls so the relevance of describing halls by their mean early lateral energy fraction values is questionable. The behaviour of LF values within auditoria is discussed for different concert hall plan forms and within opera houses. A measure of source broadening including sound level is proposed and results considered in the context of auditorium design.</div>
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Measured early lateral energy fractions in concert halls and opera houses

Measured early lateral energy fractions in concert halls and opera houses

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

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