OperaV1, PascalFrancis, Checkpoint, bibRecord, 000673

Measurement of new energetic parameters for the objective characterization of an opera house

Identifieur interne : 000673 ( PascalFrancis/Checkpoint ); précédent : 000672; suivant : 000674

Measurement of new energetic parameters for the objective characterization of an opera house

Auteurs : D. Stanzial [Italie] ; D. Bonsi [Italie] ; N. Prodi [Italie]

Source :

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

RBID : Pascal:00-0263469

Descripteurs français

Pascal (Inist)
- Méthode mesure, Intensité son, Caractérisation, Opéra bâtiment, Italie, Etude expérimentale, Polarisation, Etude statistique, Equation énergie, Equation continuité, Pression acoustique, Densité énergie, Equation onde, Réponse impulsion, Réponse transitoire, 4355, Méthode Schroeder.
Wicri :
- geographic : Italie.

English descriptors

KwdEn :
- Characterization, Continuity equation, Energy density, Energy equation, Experimental study, Italy, Measurement method, Opera(building), Polarization, Pulse response, Sound intensity, Sound pressure, Statistical study, Transient response, Wave equation.

Abstract

Following a rigorous approach to the energetic analysis of sound fields, the measurement of new quantities for the physical description of the behavior of sound in enclosed spaces has been carried out inside an Italian opera house. A first set of measures has been performed during the steady state, allowing the study of the new discovered property called sound intensity polarization, which accounts for the amount of energy oscillating thorugh the measurement point. Then, in order to accomplish a complete statistical study of the transient field behaviour, the full set of quantities involved in the energy continuity equation (total sound energy density and intensity) has been obtained by means of the extension of the classical Schroeder's method to the quantities depending also on the air particle velocity solution of the wave equation. Finally, two newly defined field indicators, accounting for the local amount of sound energy radiation and the balance between the potential and kinetic parts of the total sound energy density, have been investigated.

Affiliations:

Italie

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Pascal:00-0263469

Le document en format XML

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<term>Energy equation</term>
<term>Experimental study</term>
<term>Italy</term>
<term>Measurement method</term>
<term>Opera(building)</term>
<term>Polarization</term>
<term>Pulse response</term>
<term>Sound intensity</term>
<term>Sound pressure</term>
<term>Statistical study</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Méthode mesure</term>
<term>Intensité son</term>
<term>Caractérisation</term>
<term>Opéra bâtiment</term>
<term>Italie</term>
<term>Etude expérimentale</term>
<term>Polarisation</term>
<term>Etude statistique</term>
<term>Equation énergie</term>
<term>Equation continuité</term>
<term>Pression acoustique</term>
<term>Densité énergie</term>
<term>Equation onde</term>
<term>Réponse impulsion</term>
<term>Réponse transitoire</term>
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<front><div type="abstract" xml:lang="en">Following a rigorous approach to the energetic analysis of sound fields, the measurement of new quantities for the physical description of the behavior of sound in enclosed spaces has been carried out inside an Italian opera house. A first set of measures has been performed during the steady state, allowing the study of the new discovered property called sound intensity polarization, which accounts for the amount of energy oscillating thorugh the measurement point. Then, in order to accomplish a complete statistical study of the transient field behaviour, the full set of quantities involved in the energy continuity equation (total sound energy density and intensity) has been obtained by means of the extension of the classical Schroeder's method to the quantities depending also on the air particle velocity solution of the wave equation. Finally, two newly defined field indicators, accounting for the local amount of sound energy radiation and the balance between the potential and kinetic parts of the total sound energy density, have been investigated.</div>
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<pR><fA30 i1="01" i2="1" l="ENG"><s1>Workshop on Opera House Acoustics</s1>
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Measurement of new energetic parameters for the objective characterization of an opera house

Measurement of new energetic parameters for the objective characterization of an opera house

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