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Noise, static or snow screen captured from a blank VHS tape. Noise, commonly known as static, white noise, static noise, or snow, in analog video, CRTs and television, is a random dot pixel pattern of static displayed when no transmission signal is obtained by the antenna receiver of television sets and other display devices.
For all types of NTSC programming, captions are encoded into line 21 of the vertical blanking interval – a part of the TV picture that sits just above the visible portion and is usually unseen. For ATSC ( digital television ) programming, three streams are encoded in the video: two are backward compatible line 21 captions, and the third is a ...
For half a century, cinema sound systems were licensed to either RCA or Western Electric, and motion picture producers elected to license one or the other, or even both. This continued until 1976, by which time optical sound recording had been converted to the Western Electric (dubbed "Westrex") stereo variable-area system.
The center channel also anchors the sound field, eliminating phantom images such as those that plagued early matrixed quadraphonic sound if the speakers were not precisely placed. [2] The center channel eliminates the need to create a phantom center with left and right stereo speakers. The center channel provides image stabling effects and is ...
Television (TV) is a telecommunication medium for transmitting moving images and sound. Additionally, the term can refer to a physical television set rather than the medium of transmission . Television is a mass medium for advertising, entertainment, news, and sports.
Analog TV began with monophonic sound and later developed multichannel television sound with two independent audio signal channels. DTV allows up to 5 audio signal channels plus a subwoofer bass channel, producing broadcasts similar in quality to movie theaters and DVDs.
Sound-on-film is a class of sound film processes where the sound accompanying a picture is recorded on photographic film, usually, but not always, the same strip of film carrying the picture. Sound-on-film processes can either record an analog sound track or digital sound track, and may record the signal either optically or magnetically .
An empty sound stage with infinity cyclorama and an overhead light grid.. A sound stage (also written soundstage) is a large, soundproof structure, building or room with large doors and high ceilings, used for the production of theatrical film-making and television productions, usually located on a secured movie or television studio property.