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Center channel refers to an audio channel common to many surround sound formats. It is the channel that is mostly, or fully, dedicated to the reproduction of the dialogue of an audiovisual program. The speaker (s) connected to the center channel are placed in the center of and behind the perforated projection screen, to give the effect that ...
Bookshelf speaker. LS3/5A (1975–2003) from Spendor (left) and Rogers (right, without grill), designed for BBC by Spencer Hughes and Dudley Harwood using KEF units, and first manufactured in 1975. A bookshelf loudspeaker (or bookshelf speaker) is a compact loudspeaker, generally sold for consumer-grade home audio applications as part of a ...
Speaker stands, therefore were purpose-built to remove any deleterious colourations that came about through unwanted vibration. Further research has shown that speakers are best positioned so that the tweeter is level with the ear of the listener and so speaker stands are often built so that they line up the speakers with the ear of a person ...
Surround sound. Surround sound is a technique for enriching the fidelity and depth of sound reproduction by using multiple audio channels from speakers that surround the listener ( surround channels ). Its first application was in movie theaters. Prior to surround sound, theater sound systems commonly had three screen channels of sound that ...
Surround channels. Surround channels in a 5.1 speaker setup in red. Surround channels in a Dolby Pro Logic 4.0 system using two speakers in antiphase or a dipole speaker. Single rear surround channel in a 6.1 system. Surround channels are audio channels in surround sound multichannel audio. They primarily serve to deliver ambience and diffuse ...
From about 1900 to the 1950s, the "lowest frequency in practical use" in recordings, broadcasting and music playback was 100 Hz. When sound was developed for motion pictures, the basic RCA sound system was a single 8-inch (20 cm) speaker mounted in straight horn, an approach which was deemed unsatisfactory by Hollywood decisionmakers, who hired Western Electric engineers to develop a better ...
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