Sound design is the process of specifying, acquiring, manipulating or generating audio elements. It is employed in a variety of disciplines including filmmaking, television production, theatre, sound recording and reproduction, live performance, sound art, post-production, radio and video game software development. Sound design most commonly involves the manipulation of previously composed or recorded audio, such as sound effects and dialogue. In some instances it may also involve the composition or manipulation of audio to create a desired effect or mood. A sound designer is one who practices the art of sound design.HistoryThe use of sound to evoke emotion, reflect mood and underscore actions in plays and dances began in prehistoric times. At its earliest, it was used in religious practices for healing or just for fun. In ancient Japan, theatrical events called kagura were performed in Shinto shrines with music and dance.Plays were performed in medieval times in a form of theatre called Commedia dell'arte, which used music and sound effects to enhance performances. The use of music and sound in the Elizabethan Theatre followed, in which music and sound effects were produced off stage using devices such as bells, whistles, and horns. Cues would be written in the script for music and sound effects to be played at the appropriate time.