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the first device capable of recording sound signals was Léon Scott de Martinville 1857 invention called the “phonautograph.”
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Berliner’s gramophone became especially marketable through the invention of the spring motor record player, as first used by Eldridge Johnson in a hand-cranked motorized gramophone for Berlin in 1896.
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By the 1920s, innovation in electrical recording and amplification systems combined with the advent of magnetic recording to help drive the recording industry for the next two centuries.
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In the 1940s, Columbia introduced the 33-1/3 RPM long-playing record (LP) at about the same time the Decca Record Company helped usher in the era of high fidelity with full frequency range recordings.
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Sony developed the first digital audio recording devices to be used by professional studios in 1978
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File sharing is extremely controversial, and it led to the restructuring of such notorious Internet file-sharing organizations as Napster, which was launched in 1999 and enjoyed immense success before being shut down for copyright infringement
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… [made by] measuring] the waveform at many regular intervals (called ‘sampling’), and then storing] these measurements as numbers” (Hart-Davis and Holmes 2001).
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By exploiting the limitations of human hearing, MP3 is example of a “lossy” method of compression: MP3 removes information, whether outside of the range of human hearing or by recognizing repeating patterns and eliminating the excess..
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In 2007, Apple entered the cellular phone market with the iPhone, integrating all the features of the iPod with the modern cell phone, including a full range of multimedia applications, Internet browsing, and touch-screen technology
