![]() ![]() ![]() In addition to the usual central spindle hole, there is traditionally at least one drive hole in the label area, meant to be engaged by a special pin that prevents the disc from slipping on the turntable during the recording process if the lathe does not have a vacuum turntable. Lower-grade blanks were formerly made for home use by amateurs and may be very thin and flexible, may have a cardboard rather than a metal or glass base, and may have noticeably dull or slightly orange-peel-textured surfaces. Lower-quality blanks were considered adequate for non-critical uses such as tests and demo discs. These top-quality blanks were intended for cutting the master discs that, once silver-coated, would be electrodeposited with nickel in order to electroform parts used in making stampers (negative profile metal moulds) for pressing ordinary records. ![]() The record's sleeve is typically nothing more than a generic cover from the manufacturing company and the disc's label is similarly plain, containing only basic information about the content (title, artist, playing time, and so on), which is usually typed but may be hand-written.Īlthough once produced in a wide range of sizes (from less than 7 inches (18 cm) to more than 16 inches (41 cm) in diameter) and sometimes with glass core discs, the examples most commonly encountered today are 10, 12 or 14 inches (25, 30 or 36 cm) in diameter.īlank discs were traditionally produced in several different grades, with the best and costliest grade featuring the sturdiest core, the thickest coating and the most perfectly flawless mirror-like surfaces. Most noticeably, vinyl records are comparatively lightweight and flexible, while acetates are usually rigid and considerably heavier because of their metal cores.Īcetates commonly come in two sizes: 10-inch (25 cm) discs for singles and 14-inch (36 cm) discs for albums. ![]() The production process results in a disc that is different in several ways from the vinyl records sold to customers at retail. Glass was often used for the substrate during World War II, when aluminium was in short supply. They consist of an aluminum disc with a coating of nitrocellulose lacquer. Some acetates are highly prized for their rarity, especially when they contain unpublished material.ĭespite their name, professional grade "acetate" discs do not contain any acetate. Acetates were often used as "demos" of new recordings by artists and record labels. They were used extensively in Jamaica by sound system operators in the late 1940s and 1950s. They were used in radio broadcasting to archive live broadcasts, pre-record local programming, delay network feeds for broadcast at a later time, and provide programming "from home" on the Armed Forces Radio Network. In addition to their use in the creation of masters, they were widely used for many purposes before magnetic tape recorders became common, and in the modern era they are used by dance music DJs. Unlike ordinary vinyl records, which are quickly formed from lumps of plastic by a mass-production molding process, an acetate disc is created by using a recording lathe to cut an audio-signal-modulated groove into the surface of a lacquer-coated blank disc, a sequential operation requiring expensive, delicate equipment and expert skill for good results. Īcetate discs are used for the production of records. I know that artists charge different prices for dub plates (less) as opposed to voicing new tunes (a lot).when artists came to Brooklyn, Sounds Systems would line up at Don One studio with cash in hand for artists to voice dub plates (the Sounds would just bring DATS of mostly existing riddims that were already popular in the dance)Ī lot of artists have relationships with certain labels.įor example.when Madhouse (Dave Kelly's label) drops a new riddim you will almost always see Baby Cham, Killa, and Wayne Wonder on it.įrom what i learned when i was down in JA, if you're riddim is hot then the producer will seek out the top artists to do a version or they already has a relationships with a label(similar to madhouse's artists).and then the producer will seek out the newer talent(the ones that just hang outside the studio gates waiting for a shot) if the riddim makes it big on the radio.Type of phonograph record Acetates of 12", 10", 7" sizesĪn acetate disc (also known as a lacquer, test acetate, dubplate, or transcription disc) is a type of phonograph record generally used from the 1930s to the late 1950s for recording and broadcast purposes and sees limited use as of 2009. ![]()
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