Patent ID: 8831245

Claim:
A method for modifying a current sound-volume data value indicating a current sound-volume value, that has previously been stored in a memory and assigned by an on-board system to an acoustic alert signal including at least one content datum, reproduced on board an aircraft by a loudspeaker, wherein the on-board system is reconfigurable by redefining parameters and data of the system, the method comprising: furnishing, on board the aircraft, the on-board system with at least one personalization information data item that is stored in the memory or another memory and that defines a modification of the current sound-volume value to a new sound-volume value in accordance with a predetermined rule; and modifying the current sound-volume value by replacing the current sound-volume value stored in the memory with the at least one personalization information data item stored in the memory or said another memory to make the new sound-volume value the current sound-volume value, wherein a correspondence is established between each content datum and current sound-volume datum so that a current sound-volume datum is assigned to each content datum.