sound recording

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The video thumbnail image shows a Foley artist using a coffee grinder to create sound.

Video thumbnail shows a singing man against a background of audio editing software.

Portable compact disc players, introduced by Sony Corporation in 1991, pack the disc drive and pickup assemblies, along with control circuitry, digital-to-analog convertor, and display, into a case that can be held in the hand and connected to earphones or even loudspeakers. The extraordinarily high fidelity characteristic of all compact disc recordings is made possible by the laser scanning method, shown in the movie at lower left.

In Thomas Alva Edison's original Phonograph of 1877 (right), words spoken loudly into the recording sound box were converted by a vibrating diaphragm and a needlelike recording stylus into a series of tiny pits impressed in the tinfoil covering of a cardboard cylinder. The cylinder was turned by a hand crank (upper left) for both recording and playing. During playback, a lighter stylus traced over the series of pits (as shown in the movie, lower left), vibrating a reproducer diaphragm and re-creating the original spoken words.

The 1901 Monarch model Gramophone (right), sold by the Victor Talking Machine Company, played music recorded on a shellac disc. The spring motor was wound by a hand crank and, when released by the brake lever, rotated a turntable at 78 revolutions per minute (upper left). The needle traced a lateral groove molded into the surface of the disc (as shown in the movie, lower left), reproducing the music through the sound box, tone arm, and sound horn. For a view of an internal sound horn, click on the Orthophonic box.

The stereophonic high-fidelity record player was the high point in electromechanical sound reproduction. As shown at right and upper left, it employed a vinyl long-playing disc rotated at 3313 revolutions per minute on a turntable by a belt connected to an electric motor. The pickup cartridge contained a diamond-tipped stylus and a magnetic or piezoelectric system for converting the stylus's motions into electric impulses. The electric signal was processed in a separate amplifier module (not shown) and split between two loudspeakers, which reproduced with great realism the spatial arrangement of the original sound source. The unique stereophonic groove traced by the stylus is shown in the movie, lower left.

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sound recording: Media

Videos

The video thumbnail image shows a Foley artist using a coffee grinder to create sound.

How a Foley artist creates sound effects for screen

Hiss. Pop. Slurp. Hear that? That's Foley.

Video: Encyclopædia Britannica, Inc.

Video thumbnail shows a singing man against a background of audio editing software.

Watch and listen: How Auto-Tune changes your voice

This software lets you slack on “do,” “re,” “me.”

Video: Encyclopædia Britannica, Inc.

Images

advertisement for the Edison phonograph

advertisement for the Edison phonograph

A McClure's magazine advertisement called the Edison phonograph “the art of entertainment...

Public Domain

Portable compact disc players, introduced by Sony Corporation in 1991, pack the disc drive and pickup assemblies, along with control circuitry, digital-to-analog convertor, and display, into a case that can be held in the hand and connected to earphones or even loudspeakers. The extraordinarily high fidelity characteristic of all compact disc recordings is made possible by the laser scanning method, shown in the movie at lower left.

Portable compact disc players, introduced by Sony Corporation in 1991, pack the disc...

Encyclopædia Britannica, Inc.

In Thomas Alva Edison's original Phonograph of 1877 (right), words spoken loudly into the recording sound box were converted by a vibrating diaphragm and a needlelike recording stylus into a series of tiny pits impressed in the tinfoil covering of a cardboard cylinder. The cylinder was turned by a hand crank (upper left) for both recording and playing. During playback, a lighter stylus traced over the series of pits (as shown in the movie, lower left), vibrating a reproducer diaphragm and re-creating the original spoken words.

In Thomas Alva Edison's original Phonograph of 1877 (right), words spoken loudly...

Encyclopædia Britannica, Inc.

The 1901 Monarch model Gramophone (right), sold by the Victor Talking Machine Company, played music recorded on a shellac disc. The spring motor was wound by a hand crank and, when released by the brake lever, rotated a turntable at 78 revolutions per minute (upper left). The needle traced a lateral groove molded into the surface of the disc (as shown in the movie, lower left), reproducing the music through the sound box, tone arm, and sound horn. For a view of an internal sound horn, click on the Orthophonic box.

The 1901 Monarch model Gramophone (right), sold by the Victor Talking Machine Company,...

Encyclopædia Britannica, Inc.

The stereophonic high-fidelity record player was the high point in electromechanical sound reproduction. As shown at right and upper left, it employed a vinyl long-playing disc rotated at 3313 revolutions per minute on a turntable by a belt connected to an electric motor. The pickup cartridge contained a diamond-tipped stylus and a magnetic or piezoelectric system for converting the stylus's motions into electric impulses. The electric signal was processed in a separate amplifier module (not shown) and split between two loudspeakers, which reproduced with great realism the spatial arrangement of the original sound source. The unique stereophonic groove traced by the stylus is shown in the movie, lower left.

The stereophonic high-fidelity record player was the high point in electromechanical...

Encyclopædia Britannica, Inc.

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