A method for modifying sound in a motor vehicle that has an audio system comprising at least one electro-acoustic transducer (16, 18) that creates sound from audio signals, the method comprising: providing an initial audio signal that represents a particular vehicle sound, where the initial audio signal comprises a plurality of signal properties, wherein the initial audio signal comprises a plurality of separate sound portions (36, 40, 44, 48) separated by dead times (38, 42, 46) between them, and wherein the initial audio signal properties comprise: a level of the particular vehicle sound; a quantity of separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound; a dead time (38, 42, 46) between separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound; a duration of one or more of the separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound; a pitch of one or more of the separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound; and a delay time between a trigger and the start of a first sound portion of the separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound; and providing to the audio system, based on at least one current motor vehicle operating condition, a modified audio signal, wherein the modified audio signal comprises at least one modified signal property that differs from that of the initial audio signal, and wherein the at least one signal property is modified by a modification process that relates to a vehicle operating condition, the method being characterized in that the level, the pitch, the duration and the dead time (38, 42, 46) are variable as to each of the separate sound portions (36, 40, 44, 48), and in that the delay time and quantity of separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound are variable as to the audio signal, but not variable as to each of the separate sound portions (36, 40, 44, 48). providing an initial audio signal that represents a particular vehicle sound, where the initial audio signal comprises a plurality of signal properties, wherein the initial audio signal comprises a plurality of separate sound portions (36, 40, 44, 48) separated by dead times (38, 42, 46) between them, and wherein the initial audio signal properties comprise: a level of the particular vehicle sound; a quantity of separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound; a dead time (38, 42, 46) between separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound; a duration of one or more of the separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound; a pitch of one or more of the separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound; and a level of the particular vehicle sound; a quantity of separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound; a dead time (38, 42, 46) between separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound; a duration of one or more of the separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound; a pitch of one or more of the separate sound portions (36, 40, 44, 48) that make up the particular vehicle sound; and