A system for influencing exhaust gas noises and/or intake noises and/or engine noises of a vehicle, comprising: a controller; and at least one loudspeaker connected to the controller for receiving control signals, with the at least one loudspeaker configured for generating a noise inside a sound generator in response to a control signal received from the controller; wherein the controller comprises: at least one microprocessor (91; 91') configured for generating a digital control signal, with the digital control signal being adapted to cancel noise inside an intake system and/or an exhaust system of the vehicle at least partially or preferably completely in amplitude and phase, and/or with the digital control signal being adapted to generate a noise, and in particular an engine noise, inside an engine compartment; at least one digital-to-analog converter connected to the at least one microprocessor (91, 91') and being adapted to convert the digital control signal output from the at least one microprocessor (91, 91') into an analog control signal; and at least one amplifier connected to the at least one digital-to-analog converter and being adapted to amplify the analog control signal output from the at least one digital-to-analog converter; characterized by a step-up converter configured for being connected to an automobile battery of the vehicle and being adapted to up-convert a battery voltage (VBATT) supplied by the automobile battery to a higher, constant value, and to output the same as supply voltage to the at least one amplifier; wherein the step-up converter is configured to up-convert the battery voltage (VBATT) supplied from the automobile battery from a voltage varying between 9 V and 16 V to a constant value of 12 V or 16 V, and to output it as supply voltage to the at least one amplifier. a controller; and at least one loudspeaker connected to the controller for receiving control signals, with the at least one loudspeaker configured for generating a noise inside a sound generator in response to a control signal received from the controller; wherein the controller comprises: at least one microprocessor (91; 91') configured for generating a digital control signal, with the digital control signal being adapted to cancel noise inside an intake system and/or an exhaust system of the vehicle at least partially or preferably completely in amplitude and phase, and/or with the digital control signal being adapted to generate a noise, and in particular an engine noise, inside an engine compartment; at least one digital-to-analog converter connected to the at least one microprocessor (91, 91') and being adapted to convert the digital control signal output from the at least one microprocessor (91, 91') into an analog control signal; and at least one amplifier connected to the at least one digital-to-analog converter and being adapted to amplify the analog control signal output from the at least one digital-to-analog converter; at least one microprocessor (91; 91') configured for generating a digital control signal, with the digital control signal being adapted to cancel noise inside an intake system and/or an exhaust system of the vehicle at least partially or preferably completely in amplitude and phase, and/or with the digital control signal being adapted to generate a noise, and in particular an engine noise, inside an engine compartment; at least one digital-to-analog converter connected to the at least one microprocessor (91, 91') and being adapted to convert the digital control signal output from the at least one microprocessor (91, 91') into an analog control signal; and at least one amplifier connected to the at least one digital-to-analog converter and being adapted to amplify the analog control signal output from the at least one digital-to-analog converter; characterized by a step-up converter configured for being connected to an automobile battery of the vehicle and being adapted to up-convert a battery voltage (VBATT) supplied by the automobile battery to a higher, constant value, and to output the same as supply voltage to the at least one amplifier; wherein the step-up converter is configured to up-convert the battery voltage (VBATT) supplied from the automobile battery from a voltage varying between 9 V and 16 V to a constant value of 12 V or 16 V, and to output it as supply voltage to the at least one amplifier.