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Acoustical Field at Normal Modes in Rooms

par Korn, Tadeusz ;Van De Plas, Roger
Référence The Journal of the Acoustical Society of America, 29, 12, page (1267-1270)
Publication Publié, 1957

Article révisé par les pairs

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Résumé :

The physical form of the acoustical field at normal complex modes in rooms can be represented as a set of elementary curvilinear ducts, each carrying a single stationary wave, satisfying individually the boundary conditions at the walls. In spite of the differences in their lengths, all the ducts resonate at the same nominal frequency, the differences in their flares adjusting the phase velocity along their axes. This theory is confirmed by the analysis derived from the theory of horns. An experiment on the computed model of the duct yielded with good accuracy the calculated frequency of resonance. © 1961, American Association of Physics Teachers. All rights reserved.