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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.
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Contributor : Nicolas Epain Connect in order to contact the contributor
Submitted on : Tuesday, June 14, 2005 - 9:23:28 AM
Last modification on : Friday, October 22, 2021 - 3:31:41 AM
Long-term archiving on: : Thursday, April 1, 2010 - 9:41:10 PM



Nicolas Epain, Emmanuel Friot, Guy Rabau. Indoor Sonic Boom Reproduction Using ANC. 2005. ⟨hal-00005347⟩



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