Abstract: A method for controlling pieces of equipment of a passenger compartment of a vehicle from a sound signal, each piece of equipment preferably being chosen from the list consisting of a seat, lighting, a dashboard and a ventilation system. The method includes determining a category to which the sound signal supplied belongs, from a list of predefined categories, the categories being representative of the nature of the sound signal, assigning a class to the sound signal from a list of predefined classes associated with the determined category, the classes being a description of the sound produced by the sound signal when the sound signal is read, and the generation, depending on the class assigned to the sound signal, of at least one control signal to at least one piece of equipment in the passenger compartment.