Method and an active device for treating noise on board a vehicle, and a vehicle provided with such a device

A device for treating noise in the proximity of the head of a passenger of a vehicle, said device having at least one local noise sound sensor, said device also having at least one sound system for generating an anti-noise, each sound system being provided with a support and at least one sound actuator carried by the support, wherein the device comprises:

• a position sensor for determining the position of said head;
• at least one treatment unit connected to the local noise sound sensor to receive a local noise signal, the treatment unit being configured to deliver a control signal to each sound actuator, which control signal is a function at least of said local noise signal and of at least one transfer function per ear and relating to transferring soundwaves between a sound actuator and said passenger;
• and
• active matching means co-operating with said position sensor to keep each transfer function that is used in preparing each control signal representative of a path to be traveled by said anti-noise.