1937 (also audio-visual), from audio- + visual.
audiovisual au·di·o·vis·u·al or au·di·o-vis·u·al (ô'dē-ō-vĭzh'ōō-əl)adj.
Both audible and visible.
Of or relating to materials, such as films and videotapes, that present information in audible and pictorial form.