Airbus Helicopters

Franck Marrot

Julien Caillet

A noise treatment device (D) comprising at least one local noise sound sensor () and at least one sound system having a support () and at least one sound actuator ('). The device also includes a position sensor for determining the position of a person's head, at least one treatment unit (&#x2032;) connected to the local noise sound sensor to receive a local noise signal and configured to deliver a control signal to each sound actuator (&#x2032;), the control signal being a function of the local noise signal and of at least one transfer function per ear, and active matching means () co-operating with the position sensor in order to keep each transfer function used in preparing each control signal representative of the path to be traveled by the anti-noise.

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La Ciotat, France

Franck Marrot