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Phonautograph
Édouard-Léon Scott de Martinville invented the phonautograph, the first device that could record sound waves as they passed through the air. -
Edison´s Phonograph
The phonograph, invented by Thomas Edison, 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. -
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The Acustic Era
These recorders typically used a large conical horn to collect and focus the physical air pressure of the sound waves produced by the human voice or musical instruments. -
Vinyl
Is an analog sound storage medium in the form of a flat polyvinyl chloride disc with an inscribed, modulated spiral groove. The groove usually starts near the periphery and ends near the center of the disc. -
Period: to
The Electrical Era
The 'second wave' of sound recording history was ushered in by the introduction of Western Electric's. Sound recording now became a hybrid process -
Period: to
The Magnetic Era
The third wave of development in audio recording began when the allied nations gained access to a new German invention - magnetic tape recording. -
Compact Cassette
Is an analog magnetic tape recording format for audio recording and playback. It was released by Philips , having been developed in Hasselt, Belgium -
Period: to
The Digital Era
In a period of less than 20 years, all previous recording technologies were rapidly superseded by digital sound encoding.
