*LJ

Analog grooved disc, lacquer/acetate

Wiki
An acetate disc, also known as a test acetate, dubplate (a term from Jamaican reggae culture, now also applied to individually recorded discs of solid plastic), lacquer (a technically correct term preferred by engineers in the recording industry), transcription disc (a special recording intended for, or made from, a radio broadcast) or instantaneous disc (because it can be played immediately after recording without any further processing), is a type of phonograph (gramophone) record, a mechanical sound storage medium, widely used from the 1930s to the late 1950s for recording and broadcast purposes and still in limited use today.Unlike ordinary vinyl records, which are quickly formed from lumps of plastic by a mass-production molding process, a so-called acetate disc is created by using a recording lathe to cut an audio-signal-modulated groove into the surface of a special lacquer-coated blank disc, a real-time operation requiring expensive, delicate equipment and expert skill for good results. They are made for special purposes, almost never for sale to the general public. They can be played on any normal record player but will suffer from wear more quickly than vinyl. Some acetates are highly prized for their rarity, especially when they contain unpublished material.Acetates are usually made by dubbing from a master recording in another medium, such as magnetic tape. In the vinyl record manufacturing process, an acetate master disc is cut and electroforming is used to make negative metal molds from it; each mold, known as a stamper, can be used to press thousands of vinyl copies of the master. Within the vinyl record industry, acetates are also used for evaluating the quality of the tape-to-disc transfer. They were once a favored medium for comparing different takes or mixes of a recording, and if pressed vinyl copies of an impending new release were not yet available, acetates were used for getting preview copies into the hands of important radio disc jockeys.
Holdings Count
Hundreds of resources.
Note
Also known as acetate disc. Used for instantaneously recorded analog discs. Subdivided by disc diameter, *LJ-5 up to *LJ-16
Broader Classmarks
Analog grooved disc, lacquer/acetate
Mappings
Library of Congresss LCC M1
Library of Congresss LCC Range Orchestra
Dewey Decimal 782.81
Wikidata Q4673255
DBpedia Acetate_disc
Sample Resources
Experimental
Loading Sample Resources

Linked Data
Change Log
2016-05-02 skos:note Changed from "Also known as acetate disc. Used for instantaneously recorded analog discs" Staff Memeber
2016-04-30 skos:prefLabel Changed from "Lacquer/Acetate disc" Staff Memeber
2016-04-30 skos:note Changed from "Used for instantaneously recored analog discs" Staff Memeber
2016-04-30 skos:prefLabel Changed from "Unknown Classmark" Staff Memeber
2016-04-30 skos:note Created "Used for instantaneously recored analog discs" Staff Memeber
2016-03-30 skos:mappingRelation Created Staff Memeber
2016-03-30 skos:mappingRelation Created Staff Memeber
2016-03-30 rdfs:comment Created Staff Memeber
2016-03-30 rdfs:seeAlso Created Staff Memeber
2016-03-30 dbpo:thumbnail Created Staff Memeber
2015-08-23 skos:mappingRelation Created Staff Memeber
2015-08-23 skos:mappingRelation Created Staff Memeber
2015-08-23 skos:mappingRelation Created Staff Memeber
2015-08-23 library:holdingsCount Created Staff Memeber
2015-08-13 skos:hiddenLabel Created Staff Memeber
2015-08-13 dbpedia:sequenceNumber Created Staff Memeber
2015-08-13 skos:broader Created Staff Memeber
2015-08-13 skos:inScheme Created Staff Memeber
2015-08-13 rdf:type Created Staff Memeber
2015-08-13 skos:prefLabel Created Staff Memeber