SMC219Y1 Chapter Notes - Chapter 5: Music Software, Kazaa, Parents Music Resource Center

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Of all media industries, recording industry is most vulnerable to piracy, and suffered most by internet. Thomas edison: invented phonograph: a sound writer in 1877. As horns were attached to amplify sound, the machine became a large furniture. End of wwii: 78 rpm (revolutions per minute) records were standard. Each record had one song recorded in each side. 1947: goldmark created lp: long-playing record could play for 23 minutes & longer than 78rpm. William s. paley battles david sarnoff for record format. William paley: owned cbc radio, and encouraged sarnoff to make lp"s, but sarnoff instead made 7-inch. But with slow sales, sarnoff was convinced to make lp"s. Cbc agreed to use 45rpms for popular songs. Later all three speeds: 33-1/3, 45rpm, and 78rpm were used. Popular music in 1950s: rock n" roll (elvis presley) Then, high quality tape recorders and plastic tape this development allowed recordings to be edited and refined.

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