The relationship between the visual and aural in film has been at work since its inception.  Sound, which in the loosest sense of the term refers to any auditory accompaniment to the images on the screen-this could include dialogue, sound effects, music, and the like- impacts and influences the parameters of the cinematic experience.  The puropse of this article will be to include a brief history of how sound in film originated and changed, with special regard to the implications of the radical introduction of commercially-viable "sound films" (which refers to the synchronization of the film's audio with the film itself). 

History