ABSTRACT
Walla is the vocal sounds that people make in the background as the actors with speaking parts deliver their lines. If there are no actors speaking dialogue, then walla would be the murmur of the crowd. Walla is recorded because the background actors don't typically say anything during the shooting of a scene. A different approach to walla is when the loop group actors are making sure that no recognizable words are used. The idea is to keep the walla subliminal. Group leaders or supervisors are the people who oversee the acting side of the recording session. The ADR editor or dialogue editor on the film would have come up with the list of cues, which need to be recorded. The number of ADR or walla actors at the session will depend on the scenes and the number of background actors in them. Efforts are the non-dialogue sounds that actors make.
