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Three vinyl records of different formats, from left to right: a 12 inch LP, a 10 inch LP, a 7 inch single. A phonograph record (also known as a gramophone record, especially in British English) or a vinyl record (for later varieties only) is an analog sound storage medium in the form of a flat disc with an inscribed, modulated spiral groove.
Compatible Discrete 4, also known as Quadradisc or CD-4 (not to be confused with compact disc) was a discrete four-channel quadraphonic system for phonograph records. The system was created by JVC and RCA in 1971 [1] and introduced in May 1972. Hundreds of recordings using this technology were released on LP during the 1970s. [2]
The Sentinel Chromatron recorded on a single side of uncoated aluminum; its records were read with a fibre needle. It was "rather unstable technology" which produced poor sound quality in comparison to shellac records and was rarely used after 1935. [1] RCA Victor introduced home phonograph disk recorders in October 1930.
By 1987, phonograph use had declined sharply due to the popularity of cassettes and the rise of the compact disc. However, records have undergone a revival since the late 2000s. This resurgence has much to do with vinyl records' sparing use of audio processing, resulting in a more natural sound on high-quality replay equipment, compared to many ...
The LP (from long playing [2] or long play) is an analog sound storage medium, specifically a phonograph record format characterized by: a speed of 33 + 1 ⁄ 3 rpm; a 12- or 10-inch (30- or 25-cm) diameter; use of the "microgroove" groove specification; and a vinyl (a copolymer of vinyl chloride acetate) composition disk.
Top-tier talent was usually under exclusive contract to companies such as Mercury Records, for whom Sav-Way manufactured special attention-grabbing, quiet-surfaced picture discs that Mercury distributed only to radio disc jockeys. Vogue records retailed for US$1.05, about fifty percent more than ordinary ten-inch 78 rpm records.
The Cylinder Audio Archive is a free digital collection maintained by the University of California, Santa Barbara Library with streaming and downloadable versions of over 10,000 phonograph cylinders manufactured between 1893 and the mid-1920s. The Archive began in November 2003 as the successor of the earlier Cylinder Preservation and ...
Emile Berliner (May 20, 1851 – August 3, 1929) originally Emil Berliner, was a German-American inventor.He is best known for inventing the lateral-cut flat disc record (called a "gramophone record" in British and American English) used with a gramophone.