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Record restoration, a particular kind of audio restoration, is the process of converting the analog signal stored on gramophone records (either 78 rpm shellac, or 45 and 33⅓ rpm vinyl) into digital audio files that can then be edited with computer software and eventually stored on a hard-drive, recorded to digital tape, or burned to a CD or DVD.
John Peel And Sheila: The Pig's Big 78s: A Beginner's Guide is a compilation consisting of music originally published on 78 rpm shellac records. British radio DJ John Peel and his wife Sheila Ravenscroft began compiling the record in 2004, with Sheila completing the project following Peel's death.
Vinyl, acetate, and shellac discs being exposed to soil and fungus spores. Library of Congress Study, 1959. The conservation and restoration of vinyl discs refers to the preventive measures taken to defend against damage and slow degradation, and to maintain fidelity of singles, 12" singles, EP’s, and LP’s in 45 or 33⅓ rpm 10" disc ...
The most common rotational speeds for gramophone records are 33 + 1 ⁄ 3 revolutions per minute (rpm), 45 rpm, and 78 rpm. Established as the only common rotational speed prior to the 1940s, the 78 became increasingly less common throughout the 1950s and into more modern decades as the 33 and the 45 became established as the new standards for ...
Shellac functions as a tough natural primer, sanding sealant, tannin-blocker, odour-blocker, stain, and high-gloss varnish. Shellac was once used in electrical applications as it possesses good insulation qualities and seals out moisture. Phonograph and 78 rpm gramophone records were made of shellac until they were gradually replaced by vinyl ...
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.
The discs were only six inches in diameter so recording time at 78rpm was brief. Larger size Victor blanks were introduced late in 1931, when RCA-Victor introduced the Radiola-Electrola RE-57. These machines were capable of recording at 33 1 ⁄ 3 rpm as well as 78 rpm. One could select to record something from the radio or one could record ...
When the Columbia LP was released in June 1948, the developers subsequently published technical information about the 33 1 ⁄ 3 rpm, microgroove, long-playing record. [5] Columbia disclosed a recording characteristic showing that it was like the NAB curve in the treble, but had more bass boost or pre-emphasis below about 150 Hz.