Importance

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Abstract

The invention relates to a device for treating noise in the cabin (20) of an aircraft, the device comprising: a plurality of microphones (22 to 24) fastened to respective seats (35) of the cabin; a plurality of loudspeakers (26, 27); at least one treatment unit (28) arranged to receive noise measurement signals delivered by the microphones, and to deliver control signals to the loudspeakers for the purpose of attenuating the noise in the cabin, the treatment unit comprising a plurality of treatment modules associated with respective ones of the microphones and/or of the loudspeakers; and at least one acoustic resonator (29 to 32) including a vent (29 to 31) coupled to a cavity (32) and connecting a loudspeaker to the cabin; the acoustic resonator including a vent (29 to 31) coupled to a cavity (32), the loudspeaker and its associated resonator presenting a frequency (33 or 34) of maximum sound level (50, 500) that is less than 1000 Hz.

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First Claim