Audio Visual
Resources are those materials which do not depend solely upon reading to convey
meaning and present information through the sense of hearing as in audio
resources or through a combination of both senses — vision and hearing.
Dike (1993)
Materials displayed by visual projection or magnification or through
sound reproduction, or both, including graphic materials, audio materials,
motion pictures, video materials, and special visual materials such as
cartographic and three-dimensional materials.