Indoor Sonic Boom Reproduction Using ANC

Abstract : The European programs for development of supersonic air-flights involve new studies on the human perception of sonic boom. Because this noise includes high-level components at very low-frequency, the usual psycho-acoustic tests with headphones are not relevant; instead, the original sound-field can be reproduced with many loudspeakers in a small room, but the loudspeakers must be controlled for an accurate reproduction, both in time and space, in an area large enough to enclose a listener's head. In this paper, Active Noise Control is applied to sonic boom reproduction through Boundary Surface Control (as named by S.Ise) of the acoustic pressure around a listener. A small room was built at LMA with sixteen powerful low-frequency acoustic sources in the walls. Frequency and time-domain numerical simulations of sonic boom reproduction in this room are given, including a sensitivity study of the coupling between a listener's head and the incident sonic boom wave which combine into the effective sound-field to be reproduced.
Type de document :
Communication dans un congrès
ACTIVE 2004 : 2004 International Symposium on Active Control of Sound and Vibration, 2004, Williamsburg, VA, United States. 2004
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https://hal.archives-ouvertes.fr/hal-00005164
Contributeur : Nicolas Epain <>
Soumis le : lundi 13 juin 2005 - 17:27:56
Dernière modification le : lundi 29 janvier 2018 - 16:06:02

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  • HAL Id : hal-00005164, version 1

Citation

Nicolas Epain, Emmanuel Friot, Guy Rabau. Indoor Sonic Boom Reproduction Using ANC. ACTIVE 2004 : 2004 International Symposium on Active Control of Sound and Vibration, 2004, Williamsburg, VA, United States. 2004. 〈hal-00005164〉

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