Sound generator for mounting on a vehicle to manipulate vehicle noise

A system for manipulating sound waves propagating through an exhaust system of a vehicle driven by an internal combustion engine, the system comprising:

• a controller connected to an engine controller of the vehicle by a control line or built-in into the engine controller of the vehicle;
• and
• at least one sound generator comprising:
• a casing;
• a loudspeaker, the loudspeaker and the casing together enclosing a volume and the loudspeaker extending along a loudspeaker plane;
• and
• at least one pressure compensation valve, the pressure compensation valve coupling the volume enclosed by the loudspeaker and the casing with an outside of the casing and the pressure compensation valve extending through the loudspeaker plane;
• a control line connecting the loudspeaker to the controller, wherein the controller is configured to generate a control signal based on signals received from the engine controller and to output the control signal to the loudspeaker via the control line, the control signal being adapted to cancel the sound waves propagating through the exhaust system of the vehicle to some extent or completely, when the control signal is used to operate the loudspeaker.