Audio-visual
Encyclopedia
The term Audio-Visual may refer to works with both a sound
Sound
Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to be heard, or the sensation stimulated in organs of hearing by such vibrations.-Propagation of...

 and a visual component, the production or use of such works, or to equipment used to create and present such works. Slide tape presentation, films and television program
Television program
A television program , also called television show, is a segment of content which is intended to be broadcast on television. It may be a one-time production or part of a periodically recurring series...

 are examples of audio-visual presentations.

Once audio-visual media came into existence, it became a part of people's everyday lives within a few decades.

Business presentations are also usually audio-visual. In a typical presentation, the presenter provides the audio by speaking, and supplements it with a series of images projected onto a screen, either from a slide projector
Slide projector
A slide projector is an opto-mechanical device to view photographic slides. Slide projectors were common in the 1950s to the 1970s as a form of entertainment; family members and friends would gather to view slide shows...

, or from a computer connected to a projector
Video projector
A video projector is an image projector that receives a video signal and projects the corresponding image on a projection screen using a lens system. All video projectors use a very bright light to project the image, and most modern ones can correct any curves, blurriness, and other...

 using a presentation program
Presentation program
A presentation program is a computer software package used to display information, normally in the form of a slide show...

 (software).

In the developed world, there has been a huge uptake of computer-based audio-visual equipment in the education sector, with many schools and higher educational establishments installing projection equipment and often using interactive whiteboard technology.

See also

  • Professional audiovisual industry
    Professional audiovisual industry
    The professional audiovisual industry is a multibillion-dollar industry, comprising the manufacturers, dealers, systems integrators, consultants, programmers, presentations professionals and technology managers of audiovisual products and services....

  • Multimedia
    Multimedia
    Multimedia is media and content that uses a combination of different content forms. The term can be used as a noun or as an adjective describing a medium as having multiple content forms. The term is used in contrast to media which use only rudimentary computer display such as text-only, or...

  • Audiovisual education
    Audiovisual Education
    Audiovisual education or multimedia-based education is instruction where particular attention is paid to the audio and visual presentation of the material with the goal of improving comprehension and retention....

  • Video
    Video
    Video is the technology of electronically capturing, recording, processing, storing, transmitting, and reconstructing a sequence of still images representing scenes in motion.- History :...


External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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