Columbia subject headings:
Communication and technology.
Digital media--Influence.
Mass media--Social aspects.
Motion picture industry--Technological innovations.
Voice in motion pictures.
Harvard subject headings:
Communication and technology.
Digital media--Influence.
Mass media--Social aspects
Motion picture industry--Technological innovations.
Voice in motion pictures.
Princeton subject headings:
Communication and technology.
Digital media--Influence.
Mass media--Social aspects.
Motion picture industry--Technological innovations.
Voice in motion pictures.