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A phonograph record (also known as a gramophone record, especially in British English), a vinyl record (for later varieties only), 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.
A phonograph, later called a gramophone (as a trademark since 1887, as a generic name in the UK since 1910), 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 phonograph, invented by Thomas Edison in 1877, could both record sound and play it back. The earliest type of phonograph sold recorded on a thin sheet of tinfoil wrapped around a grooved metal cylinder.
Production of phonograph records. In the production of phonograph records – discs that were commonly made of shellac, and later, vinyl – sound was recorded directly onto a master disc (also called the matrix, sometimes just the master) at the recording studio.
The LP (from "long playing" 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.
Il fonografo è un dispositivo pensato per registrare e riprodurre il suono, progettato da Thomas Alva Edison verso il 1877 . Indice. 1 Storia. 1.1 La progettazione. 1.2 Il primo prototipo. 1.3 La commercializzazione e l'impiego. 1.4 Il grafofono di Bell. 1.5 Il grammofono e la reazione di Edison. 2 Note. 3 Voci correlate. 4 Altri progetti.
The phonautograph is the earliest known device for recording sound. Previously, tracings had been obtained of the sound-producing vibratory motions of tuning forks and other objects by physical contact with them, but not of actual sound waves as they propagated through air or other mediums.
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