Audiovision
As audiovisual refers to the combination of sensations that the auditory and the visual perception are directed. The media historian Helmut Schanze limits audio vision to the merging of electroacoustic and cinematographic technologies after 1900 .
The audiovisual media are radio and television ; they broke mediengenealogisch the technical spellings , and even be replaced by digital media .
The audiovisual media are characterized by recording and playback machines, including cameras , microphones and receivers ( television and radio ); a broadcasting network is used for technical distribution.
development
A number of key technologies were prerequisites for the audiovisual media system:
- Invention of photography as a photochemical recording technique for static images ( Louis Daguerre and others , 1839 );
- Invention of the telephone as an electroacoustic transmission medium;
- Invention of phonography as an electroacoustic recording technique;
- Invention of motion picture photography / cinematography as a recording and playback technology for moving images;
- Invention of radiotelegraphy (Marconi and others);
- Invention of the Braun tube ( cathode ray tube ).