Foley artist

The foley artist on a film crew is the person who records the sound effects. Sound effects are rarely recorded at the same time as dialogue and action, since the sound mix is so difficult to master; the foley artist listens to the dialogue track for the (usually quite faint) sounds of for instance footsteps, a door slam, etc. and records them onto a new track in synch with the action onscreen. The foley artist also adds sounds that may not exist at all on the original track: for instance, thumping watermelons or cracking bamboo to create the sounds of a fight.