A phonograph, later called a gramophone, and since the 1940s a record player, or more recently a turntable, is a device for the mechanical and analogue reproduction of recorded sound. The sound vibration waveforms are recorded as corresponding physical deviations of a spiral groove engraved, etched, incised, or impressed into the surface of a rotating cylinder or disc, called a "record". To recreate the sound, the surface is similarly rotated while a playback stylus traces the groove and is therefore vibrated by it, very faintly reproducing the recorded sound. In early acoustic phonographs, the stylus vibrated a diaphragm which produced sound waves which were coupled to the open air through a flaring horn, or directly to the listener's ears through stethoscope-type earphones.
Phonograph cylinders are the earliest commercial medium for recording and reproducing sound. Commonly known simply as "records" in their heyday, these hollow cylindrical objects have an audio recording engraved on the outside surface, which can be reproduced when they are played on a mechanical cylinder phonograph. In the 1910s, the competing disc record system triumphed in the marketplace to become the dominant commercial audio medium.
A phonograph record, a vinyl record, or simply a record or vinyl is an analog sound storage medium in the form of a flat disc with an inscribed, modulated spiral groove. The groove usually starts near the outside edge and ends near the center of the disc. The stored sound information is made audible by playing the record on a phonograph.
The Victor Talking Machine Company was an American recording company and phonograph manufacturer, incorporated in 1901. Victor was an independent enterprise until 1929 when it was purchased by the Radio Corporation of America (RCA) and became the RCA Victor Division of the Radio Corporation of America until late 1968, when it was renamed RCA Records.
Pathé Records was an international record company and label and producer of phonographs, based in France, and active from the 1890s through the 1930s.
Edison Records was one of the early record labels that pioneered sound recording and reproduction, and was an important and successful company in the early recording industry.
Blue Amberol Records was the trademark name for cylinder records manufactured by Thomas A. Edison, Inc. in the US from 1912 to 1929. They replaced the 4-minute black wax Amberol cylinders introduced in 1908, which had replaced the 2-minute wax cylinders that had been the standard format since the late 1880s. Blue Amberols can play for as long as 4 minutes and 45 seconds and have a surface layer of the "indestructible" plastic celluloid, which Edison tinted a trademark blue color. Edison brand phonographs designed to play Amberol cylinders were named Amberolas.
A format war is a competition between similar but mutually incompatible technical standards that compete for the same market, such as for data storage devices and recording formats for electronic media. It is often characterized by political and financial influence on content publishers by the developers of the technologies. Developing companies may be characterized as engaging in a format war if they actively oppose or avoid interoperable open-industry technical standards in favor of their own.
The overwhelming majority of records manufactured have been of certain sizes, playback speeds, and appearance. However, since the commercial adoption of the gramophone record, a wide variety of records have also been produced that do not fall into these categories, and they have served a variety of purposes.
Sound recording and reproduction is the electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording.
Eldridge Reeves Johnson was an American businessman and engineer who founded the Victor Talking Machine Company in 1901 and built it into the leading American producer of phonographs and phonograph records and one of the leading phonograph companies in the world at the time. Victor was the corporate predecessor of RCA Records.
The history of sound recording - which has progressed in waves, driven by the invention and commercial introduction of new technologies — can be roughly divided into four main periods:
The LP is an analog sound storage medium, a phonograph record format characterized by: a speed of 33+1⁄3 rpm; a 12- or 10-inch diameter; use of the "microgroove" groove specification; and a vinyl composition disk. Introduced by Columbia Records in 1948, it was soon adopted as a new standard by the entire US record industry. Apart from a few relatively minor refinements and the important later addition of stereophonic sound in 1957, it remained the standard format for record albums, during a period in popular music known as the album era. Beginning in the late 1970s, LP sales began to decline due to the increasing popularity of cassette tapes and compact discs (CDs). By 1988, the latter format began to outsell LPs.
A dictation machine is a sound recording device most commonly used to record speech for playback or to be typed into print. It includes digital voice recorders and tape recorder.
In the field of audio recording, an aluminum disc is a phonograph record made of bare aluminum, a medium introduced in the late 1920s for making one-off recordings. Although sometimes used for making amateur studio or home recordings or in coin-operated "record-your-voice" booths at fairs and arcades, during the first half of the 1930s bare aluminum discs were primarily used to record radio broadcasts for the private transcription disc archives of performers or sponsors.
The Volta Laboratory and the Volta Bureau were created in Georgetown, Washington, D.C., by Alexander Graham Bell.
The vertical cut recording process is an early method of audio recording by which a stylus cuts a vertical groove into a phonograph record. This is in contrast to the lateral recording system which uses a stylus that cuts side-to-side across a record. The vertical recording process, also known as the hill and dale process, was used to record phonograph cylinder records as well as Edison Disc Records, Pathé disc records, and disc records made by numerous smaller companies. Vertical cut recording was also used as a means of copyright protection by the early Muzak 16-inch background music discs.
Electrical transcriptions are special phonograph recordings made exclusively for radio broadcasting, which were widely used during the "Golden Age of Radio". They provided material—from station-identification jingles and commercials to full-length programs—for use by local stations, which were affiliates of one of the radio networks.
Operaphone Records was a record company in existence from 1915 until 1921, who released numerous phonograph records cut in the hill-and-dale and universal-cut methods.
IRENE is a digital imaging technology designed to recover analog audio stored on fragile or deteriorating phonograph cylinders, records, and other grooved audio media. It is in use by several archives and preservation institutions in the United States seeking to preserve and digitize historical audio.
