Sound design is the practice of sound asset creation, found across all media mediums, from video games to radio. This process commonly involves either the performance of foley or synthetic generation of sound, and subsequent enhancement in post. These sounds are tailored to each individual project, bringing worlds and their inhabitants to life. An elephant call combined with a car driving on wet pavement becomes the iconic sound of a spaceship in a genre defining franchise; the sound of a car drifting down a a gravel road in neutral becomes an ancient rolling boulder trap; these are examples of creative sound design that create authentic sounding media.