1) Audiovisual techniques 2) Teaching aid 
EU audiovisual policy draws on a variety of legal bases in the Treaty on the Functioning of the European Union, the main ones being Articles 167 (culture and cultural cooperation) and 173 (industry). Other EU rules such as those on competition, on state aids and on public service obligations also have an important impact on the sector.
A singular term that designates both sight and sound simultaneously. The final product of major motion picture releases are `audiovisual` phenomena
relating to communication techniques combining sound and pictures
Pertaining to a communication or teaching technique that combines both audible and visible symbols. ... (05 Mar 2000) ... 
Type: Term Pronunciation: aw′dē-ō-vizh′yū-ăl Definitions: 1. Pertaining to a communication or teaching technique that combines both audible and visible symbols.
[adj] - involving both hearing and seeing (usually relating to teaching aids) 2. [n] - materials using sight or sound to present information
audiovisual 1. Materials using sight and sound to present information. 2. Involving both hearing and seeing (usually relating to teaching aids). 3. Relating to sound and vision; especially, when combined; such as, in a presentation using both film and sound recordings.
adjective involving both hearing and seeing (usually relating to teaching aids); `the school`s audiovisual department`
of, pertaining to, involving, or directed at both hearing and sight: audiovisual facilities; audiovisual techniques.
involving both hearing and seeing