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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.
A label close-up on a 16rpm vinyl Mechanical analog; lateral groove, horizontal stylus motion - played at half the regular speed of an LP 1951 Minifon P55 Minifon cassette Analog, magnetic wire on reel, 30 cm/s or about 11.8 ips was quickly adopted by many governments as being the ultimate "spy" recorder of its day 1957 Stereophonic vinyl record
An LP record on a phonograph. Technological developments in the early 20th century led to sweeping changes in the way recorded music was made and sold. Before the LP, the standard medium for recorded music had been the 78 rpm gramophone record, made from shellac and holding three to five minutes per side. [3]
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.
In France, the SNEP said that LP sales were 200,000 in 2008, however independent record labels said that overall sales were probably 1 million. [124] In United States, 67% of all vinyl album sales in 2012 were sold at independent music stores. [125] Vinyl revenues were at the lowest point in its history in 2006, with a total trade value of $36 ...
The vinyl LP became popular during the 1950s, and the availability of affordable components such as turntables, speakers and amplifiers enhanced the sonic realism of music playback in homes. This period was characterized by home audio enthusiasts emphasis on achieving the highest quality sound reproduction possible, and the term "hi-fi" became ...
The album has two versions of "Tell the Truth", both different from and recorded before "Tell the Truth" on Layla and Other Assorted Love Songs (1970)."Tell the Truth" on this compilation is a fast up-beat version originally released as a single in July 1970, while "Tell the Truth – Jam" is a long and slow instrumental jam from the Layla sessions which had never been released before.
1948 : The microgroove 33-1/3 rpm vinyl record (LP) is introduced by Columbia Records; 1951 : Pultec introduces the first passive program equalizer, the EQP-1; 1952 : Harry F. Olson and Herbert Belar invent the RCA Synthesizer; 1952 : Osmand Kendal develops the Composer-Tron for the Canadian branch of the Marconi Wireless Company