An anti-noise system for influencing exhaust noises propagating through a multi-flow exhaust system of a vehicle, comprising: a controller; and at least one actuator disposed in a sound generator (20; 21; 23; 25; 27; 29); wherein the at least one actuator is in communication with the controller for receiving control signals, and is configured for generating sound inside the sound generator (20; 21; 23; 25; 27; 29); wherein the sound generator (20; 21; 23; 25; 27; 29) is connectable to at least two exhaust tracts (60, 61) of the multi-flow exhaust system of the vehicle simultaneously; and wherein the controller is configured to generate a control signal that prompts the at least one actuator disposed in the sound generator (20; 21; 23; 25; 27; 29) to cancel sound inside the at least two exhaust tracts (60, 61) of the vehicle's multi-flow exhaust system at least in part and preferably completely; further comprising at least one error microphone (70, 71; 72; 74) that is in communication with the controller; wherein the error microphone (70, 71; 72; 74) is adapted to measure sound inside the exhaust system and to output a corresponding measurement signal to the controller; and wherein the controller is configured to cancel measurement signals received from the error microphone (70, 71; 72; 74) by outputting the control signal to the at least one actuator at least in part and preferably completely; characterized in that the at least one error microphone is connectable by an additional pipe to at least two exhaust tracts (60, 61) of the vehicle's multi-flow exhaust system simultaneously at a position of the exhaust system located in the section of a fluid connection between the sound generator (20; 21; 23; 25; 27; 29) and the exhaust system. a controller; and at least one actuator disposed in a sound generator (20; 21; 23; 25; 27; 29); wherein the at least one actuator is in communication with the controller for receiving control signals, and is configured for generating sound inside the sound generator (20; 21; 23; 25; 27; 29); wherein the sound generator (20; 21; 23; 25; 27; 29) is connectable to at least two exhaust tracts (60, 61) of the multi-flow exhaust system of the vehicle simultaneously; and wherein the controller is configured to generate a control signal that prompts the at least one actuator disposed in the sound generator (20; 21; 23; 25; 27; 29) to cancel sound inside the at least two exhaust tracts (60, 61) of the vehicle's multi-flow exhaust system at least in part and preferably completely; further comprising at least one error microphone (70, 71; 72; 74) that is in communication with the controller; wherein the error microphone (70, 71; 72; 74) is adapted to measure sound inside the exhaust system and to output a corresponding measurement signal to the controller; and wherein the controller is configured to cancel measurement signals received from the error microphone (70, 71; 72; 74) by outputting the control signal to the at least one actuator at least in part and preferably completely; characterized in that the at least one error microphone is connectable by an additional pipe to at least two exhaust tracts (60, 61) of the vehicle's multi-flow exhaust system simultaneously at a position of the exhaust system located in the section of a fluid connection between the sound generator (20; 21; 23; 25; 27; 29) and the exhaust system.